Advantages And Disadvantages Of Heat Pump

Advantages And Disadvantages Of Heat Pump
The above diagrams illustrates how easy it is to utilise the key components but to reverse the
process i.e. to pump heat out rather than in, thus becoming an 'air conditioning' unit (more correctly
called a cooling unit).
All the main components remain same with just the flow reversed (via the 4 way reversing valves)
and some additional minor components (e.g. check valves and specific expansion valve).
Simultaneous heating and cooling
The Heat Pump can be designed and configured as a multi mode machine.
 To generate only hot water from ambient air
 To simultaneously generate hot water and cooling energy.
 To generate only cooling for comfort
Hotels and hospitals continuously need air–conditioning, and therefore on a multimode ... Show
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Water–to–Water (W–W).
Water–to–Air (W–A).
Water Source (iii. & iv.) can be further subdivided:
a. Closed Loop: this is the most common form of "Ground source" system when buried.
b. Open Loop: much less common than closed loop ground source (e.g. ground Aquifer; open lake,
river or sea).
This sort of unit designation would lead to better description and slightly less confusion. It also
highlights that the key difference between water source heat pumps which work on closed and open
loops in the ground is the temperature they work at rather than the medium itself (which is the same
– water).
3 Based on Motive / generating power input.
Heat pumps are also sometimes designated by the fuel source used to drive the process which is
most usually electricity (>95%), less commonly natural gas and much less commonly LPG.
4. Based on Operating Temperature
For heat pumps generating hot water in their condensers (i.e. Air– or Water– to Water units) another
sub description is the flow temperature capability.
BS EN 14511–2011 "high temperature" heat pumps they are often referred to Very High
Temperature i.e. >65°C.
For heat pumps producing warm air the temperature should not drop below 38°C to prevent risk of
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Sherman Argumentative Essay
After a hot bath the next morning, Sherman went to the Robe Cleaning and Repair
Shop. He asked the big angel to repair the huge hole left by that silly dog. Then he went to the
Map Store so he could to plan their next trip to Earth. He called Mugsie and Topsie together.
"Since we have so many places left to search for Peewee's home and so little time, let's
split them up and fly to each place alone. We can't search every city, but we can make a list
and fly to a lot of them.
"Okay with us," chimed Mugsie and Topsie.
"Well," said Sherman, "when you look at a globe of Earth, you see lots of water and
seven big pieces of land called con–ti– nents." Even Sherman had trouble with that word. "We're
almost finished with the first continent, ... Show more content on Helpwriting.net ...
These kids already
have cats. And there are lots of babies in other houses, but not old enough to play with Peewee.
She pulled out her map one more time. Wow. Three more countries. That's lots of
flying.
Just then, Mugise phoned. " I'm finished with my continent. Need any help"?
"Yes! Italy and Germany. That gives me time to fly back north to Ireland."
Hours later, when Topsie landed in Ireland, she thought it was the greenest country she
had ever seen. Fields of grass everywhere! Peewee would love this. She looked in window

after window. Everyone with a pet had a dog. No cat owners except for a few old ladies.
After awhile, she flew to another part of Ireland, one with caves. They dotted the
shoreline near a lovely sea. Suddenly, Topsie heard a whisper from inside one of them.
"Psst. Psst."
Topsie whirled around and saw a tiny man dressed in green. She knew at once that he
was a leprechaun. Sherman had told her they were not real at all. But there he was in front of
her!
"Hi," said Topsie. "Did you want something?"
The leprechaun giggled. "Bet you can't catch me," he said. "If you do, you'll get a pot of
gold."
"Look," said Topsie, "I just need to know if any Irish kids want a

Analysis Of Alice Munro 's ' How I Met My Husband '
"How I Met My Husband" by Alice Munro is a short story about Edie, a fifteenth year old girl, who
works at Dr. Peebles and Mrs.Peebles house taking care of their children, cleaning the house,
preparing the vegetables and occasionally baking desserts. One day they heard a plane pass by, and
they ran into the yard to look. Their neighbor Loretta Bird mentioned that the plane was close to
hitting their house and began to talk about the plane. She also specified that the pilot received
permission to use the fairgrounds and give residents rides to see the neighborhood from above. The
next day when Edie finished her tasks early, she sometimes would look at Mrs. Peebles' clothes and
even tried on a dress and put makeup on. She headed to the kitchen to drink ginger ale and gets
startled by a man, named Chris Watters, standing outside the door. He mentions he 's the pilot of the
plane and asks if he can obtain some water from the pump. He complimented and thanked her and
left to the pump. After she rushed to take off the dress and wash her face before Mrs. Peebles arrived
to the house. Mrs. Peebles commenced to ask questions about the man, but Edie contemplated on
becoming fired if the man revealed how she dressed. After the Dr. and Mrs. Peebles departed to the
theater, Edie ensured the children were sleeping then headed outside. She desired to talk to Chris to
make sure he wouldn 't say anything about her dressed up. He assured he wouldn 't reveal anything
and offered her a

Cj Industries and Heavey Pumps – Discussion Questions Essay
CJ Industries and Heavey Pumps – Discussion Questions 1. What are all the issues here, from both
CJI's and Heavey's perspectives, that need to be researched by Mr. Ashby?
CJ Industries (CJI)
The first issue presented for CJ Industries was its contract with Great Lakes. Though CJI had
sufficient excess capacity to ramp up production on the parts to be supplied in the Great Lakes'
contract, they were not sure about the ability or willingness of Heavey Pumps to increase their
production of the bilge pumps. The problem is that CJ Industries had signed the contract with Great
Lakes prior to any discussions about ramping up production with Heavey Pumps.
The next issue for CJ Industries was whether or not Heavey Pumps could guarantee ... Show more
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With about nine months remaining until the contact start date, Heavey Pumps would need to look at
their existing customer orders to see if they had enough capacity to quadruple production of bilge
pumps for CJ Industries.
Furthermore, Heavey Pumps would need to evaluate the costs associated with this contract (i.e.
labor, production, warehousing, purchasing, transportation, etc.) to determine a new unit price for
the bilge pumps associated with CJ Industries contract.
Finally, as with CJ Industries' cost benefit analysis, Heavey Pumps ought to decide if they should
continue to service CJ Industries. If so, perhaps consider changing from their current informal,
noncontract basis to a more long–term agreement.
2. Should CJI continue to use Heavey to supply pumps, should they make them in–house, should
they consider one of the other suppliers, or should they do some combination of these alternatives?
Discuss the advantages, disadvantages, and risks of each of these alternatives.
Option 1 – continue to use Heavey Pumps. This would be probably the easiest decision since
Heavey Pumps had been a reliable supplier for CJI for a number of years. This is also contingent on
Heavey Pumps and the issues discussed above, i.e. quality and performance, price, delivery timing
and volume requirements. The disadvantage would be CJ Industries may need to consider another
supplier which might not prove to be as reliable.

Should Groundwater Be Regulated Essay
Groundwater: Should It Be Regulated? Imagine not having water. What's life without having water?
There's no more taking showers or washing the dishes or anything that involves water. Life would
be pretty horrendous. According to Source two, Financial Times,"... At least 1,300 people have lost
their water in and around East Porterville...". The legislature should make an act that limits the
amount of water individuals take out of the ground. "Scientist are already sounding alarm bells
about pumping too much groundwater. State water managers estimate that water tables in some parts
of the Valley have dropped 100 feet below historical lows." (Source three). California should make a
law about pumping water because in the near future there will be no more water. Another reason is,
"As water levels sink, the land can sink..." (Source three). What this means is that if people just
cluelessly poke holes into the ground to pump out water, the area that has holes will sink. According
to Source 2, "... California is the only state that doesn't really monitor or regulate how much
groundwater farmers and residents are using." This is an agonizing problem because if the state does
not watch our moves towards pumping water, people might take too much and we will not have any
... Show more content on Helpwriting.net ...
"Even though California was the only state in the West without groundwater legislation, officials
with the Kern County Farm Bureau said they're not happy with the state's bill." (Source one).
Apparently, farmers are not so happy about them making a bill. If there is a legislative law about
monitoring groundwater, then how will the farmers grow their crops? Some farmers are worried,
too, according to source three. "In Merced County, farm leaders are trying to stop two private
landowners from selling as much as 7 billion gallons of well water to farmers in another county."
(Source

Septic Tank Research Paper
If you are having your septic tank pumped, it is vital that you understand all of the safety
precautions that you should take while your septic tank is being pumped. #1 Make Sure The
Contractor You Hire Is Qualified The best way to protect your safety and that of your home when
your septic tank is being pumped is to hire a contractor who is licensed and bonded within your state
for the purpose of pumping septic tanks. Make sure that you ask to see this documentation before
you allow them to work on your septic tank. It is easy to overlook this step, but for the safety of
your house and your family, you should not skip this step. #2 Keep Pets Inside Keep your pets inside
while your septic tank is being pumped. The gases expelled from the

Data Sheets Of Multiphase Pumps
The current study is an effort to analyse existing secondary data which includes professional
journals, industry reports, past research on related topics and data sheets of multiphase pumps
(MPPs) so as to understand the efficiencies and advantages brought in by MPPs in multiphase
pumping conditions. The study also attempts to provide a general criterion of a pump for a particular
process during production. It is understood that fluids pumped from off shore oil wells will
essentially pump multiphase fluids at all times up to separation stage. Also, oil wells undergo
changes in gas volume fraction and watercut during the lifecycle of the well including testing,
installation, initial phase of pumping, in established and operational oil wells, an aging oil well and
during abandonment.
The criterion to choose a multiphase boosting solution for any oil well system is very subjective and
in most cases is dependent on the pump manufacturer or system packager data. Such a situation may
result in over–dependence on the vendors and probably camouflage other available technologies or
limitations in the known technology. The study will compare both the manufacturer data sheets as
well as the available data on multiphase pump performance in oil wells across the globe. The
available literature on the subject only indicates that certain type of pump is suitable for a given
application but does not provide a generalized set of criterion for deciding up on a pump for a
particular field

Persuasive Speech On Insulin Pump
Topic: How to use an Insulin pump
Purpose Statement: To inform my audience of how to use an insulin pump from learning how to
change your insulin and its infusion set
Central Idea: The insulin pump is an efficient tool, but it can be tricky to use when you're just
starting out, this is why I will be taking you step by step on the process of using your insulin pump
from putting in new batteries, refill and then insert the insulin reservoir correctly, how to manually
set up your pump for the infusion set, and the places you can safely connect your infusion set to on
your body.
Organization: Spatial Order
Introduction:
It the day you have been dreading, you been hoping that it would last just a little longer, but there is
no point in running ... Show more content on Helpwriting.net ...
Select Yes
After that is the message saying Fill Cannula and connect set to body
Take off the paper from the bottom of the infusion set
You want to first take off the small plastic bit that protects the needle
Gently take off the paper cover that protects the set
In the bottom, there is an area where you must gently pull down till you hear a click
Once that is done is done it's time to connect the set to your body
Transitions: I know that some may be wondering about the old infusion set that was on you. You just
rip that off of your body. I know for me putting water on it till its damp is easier for me with that
said on to figuring out what is the best places to put your infusion set.
Places to safely connecting your infusion set to on your body
You want to go to any fatty area. This can be your
Stomach
Upper Arms
Or Upper Legs
You MUST rotate your areas you don't want to get hard bumps
This means that the insulin is staying in one area and is not distributing correctly
Now, when you found a good spot you want to have your thumb and index finger on the sides of the
set that are kind of like dimples.
All you need to do it squeeze it and it will put the infusion set in

Water Scarcity in Michigan Essay example
"Nestle in Michigan" is a video clip on YouTube about the Nestle corporations bottled water plants
with a primary focus being on the plant located in Stanwood, Michigan (Menzies, 2010). Nestle has
a 99 year lease on property that only cost them $63,000, "they received $10 million in tax
abatements", and they are pumping water at a rate of 218 gallons per minute (down from the
original 450 gallons per minute) (Menzies, 2010). In other words, Nestle is pumping dangerously
large amounts of water that is free to them as property owners, selling it for a profit, and not being
subjected to the same tax as other land owners. House Bill 6443 was introduced in 2010 to keep
well water withdrawal from being taxed, but "instead, an owner would have ... Show more content
on Helpwriting.net ...
It is now an issue that will have them both wasting time and money on investigations, lawyers, and
other court fees while in and out of court. Once one case is won a precedent is set that opens the
door for all kinds of neighbor vs. neighbor and who is entitled to the water. Environmental Attorney
Jim Olson said, "Water is a transient gift on earth for life" (Menzies, 2010). To me this means water
was provided to us by God as a means of survival and ongoing life. Water belongs to no one person
yet all of us at the same time. A better solution than House Bill 6443 would be a bill that instead
imposes a high tax on the withdrawal of water for commercial use. Honestly I can't believe there is
no such law. Government should play a larger role in the preservation of our natural resources;
however it is ultimately up to us as individuals to be conscious consumers. Without consumers there
are no markets. I found this video to be quite disturbing. I have always felt bottled water was a
waste but never realized to what extent. This video is another affirmation of what a waste of money
and gross, unnecessary, waste of natural resource bottled water is. Before anyone ever sold bottled
water, the market for it did not exist; there was no demand for bottled water. People carried it with
them, found an alternate source, or went without. I too have purchased

Elijah Rylson Case Study
Elijah Rylson was born October 26th, 1999. His parents were Elijah Rylson Sr. and Catherine
Rylson. Elijah's mother, Catherine had died two weeks after his birth in a car accident. Soon after his
wife's death, Elijah Sr. had gone into deep clinical depression from the passing of his wife and
having to take care of his first child all by himself. Within a short few months Elijah's Sr.'s
depression had turned into alcoholism
Elijah Jr. who mainly went with Eli has very few memories of his father being sober. One time when
they both had to attend his grandfather's funeral, on his tenth birthday party, and now, on his
seventeenth birthday where he just bought his own car an old beat up minivan with money he's been
saving up for years. Eli dreamt ... Show more content on Helpwriting.net ...
Eli and Vivian were talking for nearly three before he had asked her out on a date. Eli had taken
Vivian out to a classy restaurant and a movie where they had their first kiss. Eventually in no time
the two were highschool sweethearts and inseparable. Right after both had graduated high school
they got matching tattoos to symbolize the strong love they have for eachother. Five years after
graduation Eli had proposed to Vivian where they had went on there first date. It was nearly ten
years later when the couple had three children, a house in the suburbs, a border collie dog and a life
they had always dreamed of.
One day while on his way to pick up his children from school he stopped at a gas station to fill up
his tank. A bus had swerved off the road and hit a pump while trying to avoid hitting a dog crossing
the street. Once the bus hit the pump instantly the gas station exploded. Eli had woken up with
major deja vu, a bright light above his head, his bare butt on a cold hospital mattress wearing a
hospital gown, and a thin blanket covering him.
"Hello Mr. Rylson, my name is Dr Ordaz. Do you know why you are here?" A tall brunette man said
while entering the room with full focus on a clipboard in his

New Business Plan for a Gas Station Start Up
The customer need that will be satisfied is that my gas station will have gasoline, diesel, and a
service station to get the repairs or inspections they will need to have. There will be a free air pump,
so they can have the option of filling up their tires. I will also have coffee, snacks and different
beverages the customer can purchase as well, so they can also fuel up their bodies as well for the
ride they are going to make. The product will be unique by my station having a self service, but also
a full service section for customers at no extra cost, but if the customer is getting 5 gallons or less
than there will be a slight increase on the price per gallon. I will have two self service gasoline
pumps; two full service gasoline ... Show more content on Helpwriting.net ...
The customers' needs are that they feel that this is a place that will take care of them and will treat
them with the most upstanding customer service so they will keep on coming back. With the
amenities I will provide I will hopefully be going above and beyond their expectations of the service
they would receive at another gas station. The customer may need to use the service station, and
they're vehicle will be treated with the proper care it deserves.
The Exxon station, located at the corner of Baltimore Avenue and Church lane in East Lansdowne,
PA. The Giant supermarket that has a gas station that's located right by Baltimore avenue and Union
avenue in east Lansdowne, PA. The Exxon station's strengths are that they sell cigarettes and have
the lottery. They also have a convenience store that you can go inside with an ATM machine in it.
Their weaknesses are that there is only one employee that works there. They have an air pump and
vacuum section that you have to pay for. They do not have a full service option, nor do they have a
service station to work on vehicles or a diesel fuel pump. It also isn't a very clean or well maintained
place.
The Giant supermarket's strengths are that they have the same option of accumulating points from
purchases made inside of their supermarket. They also have an entire supermarket

Project Water Level Indicator With Automatic Water Pump...
Water is the most important issue in our day to day life. But it is very pathetic when the owner of the
house faced that the water tank be empty without any alarming. The project is to design water level
indicator with automatic water pump controlling system. water level sensor is been made for sensing
water level accurately. Microcontroller is used to control the overall system automatically that
reduces the design and control complexity. Microcontroller takes input from the sensor unit which
senses the water level. After processing input variables, resultant output decides the water pump's
action (on/off) with respect to current water status of the tank. A display unit indicates the status of
pump and water level. The device also monitor the state of level of water whether it is stable,
increasing or decreasing with what velocity. It also stores the total time of pump being kept ON. It
also keep monitoring whether the pumping is working well or not. While Keeping the motor ON it
detects whether the motor pump is working well or not every minutes. If the level is increasing or
decreasing in each minutes then the indicator shows the motor pump is working well else after three
minutes if the level remains stable then it shows there is a problem in motor. Thus it also monitor the
working performance of the pump Introduction
An Water Level Indicator may be defined as a system by which we can get the information of any
water reservoir. Water level indicator system are quite

William Kamkwamba Essay
According to the Ted talks, William Kamkwamba was born in Malawi, South East Africa. He had 6
sisters and was the only boy besides his dad in his family. William's father was a farmer in his
village, and his family depended on the rain to water the plants so they could harvest and eat them.
William lived in a small house with no electricity and no water. His sisters had to walk to the nearest
water source and then carry it back to their home just so they could have water. Once William was
old enough he went to school. He enjoyed school and was fascinated how things work. At school
William usually had a banana for lunch and other kids wanted to take it, but William refused.
William ignored them and did not listen to other people trying to command him. In 2001, the rain
stopped and there was no crops, which means less food (Ted Talk). William by then was a teen and
he was very concerned about the famine. One day ... Show more content on Helpwriting.net ...
When William came back he had another idea to build another windmill that pumped water. William
had gotten money to build a second Windmill back in America so instead of a junkyard he used the
money to buy pieces. William had more experience so it took him a shorter time to build the
Windmill. When William finished his Windmill it had two propellers and pumped water for his
family and village. Once again the Journalist came back and invited him in another Ted Talk. This
time William got to see the real Windmills and how they worked in Palm Springs. Then William
decided to give a school a Windmill in Africa. William did not do it alone most of the kids helped
him make it.
As you can see William built his windmills to provide electricity for his home and water for his
family and village. Now, William would like to make a company that builds windmills so that a lot
of people can have electricity and a close water source throughout their lives. William took one
sentence out of a book and made it into a life changing

A Controlled Trial Of Smart Infusion Pumps
Jeffery et. al. (2005) study, "A Controlled Trial of Smart Infusion Pumps to Improve Medication
Safety in Critically Ill Patients," aimed at looking at the differences in serious medical errors using
smart infusion pumps vs not using smart pumps in an intensive care unit. Although, this was
accomplished, it was significantly limited by the sample group characteristics and lack of staff
education regarding smart pumps. The study analyzed in depth the serious medication errors using
the infusion pumps and found multiple areas for improvement, from the provider ordering the
medication to the reprograming of the pumps. This can help reduce medication administration errors
specific to the causes found by the study. Medication errors can be life threatening especially to
critically ill patients. Intravenous medications, if given improperly, can have fatal consequences in
the critically ill (Tissot et. al.,1999). For example, heparin given at the wrong dose can lead to
severe bleeding and stroke (Crowther & Warkentin, 2008). Using smart pumps gives alerts to the
operator making them aware of a possible wrong dose based on the medication given. Summary
Jeffery et. al. (2005) study looked at the use of smart infusion pumps to assess serious medical errors
in a cardiac surgical intensive care unit. A prospective, time–series trial design was used to track the
serious medication error rate and type of errors in two groups. The groups consisted of an
intervention group and

A Brand New Therapy
Cellatroniks is a brand new therapy in the United Kingdom, although it has been practiced in the
United States for 25 years by its founder Teddy Gagnan. Also called dynamic energy therapy, it
boosts energy fields in the body, which in turn strengthens the immune system and enhances the
body 's healing capacity. According to Trick Or Treatment: The Undeniable Facts about Alternative
Medicine by Simon Singh, Edzard Ernst, The therapy works by sending invisible and soundless
energy waves into the body via key points – the hands, feet, back of the neck, chest, shoulder and
abdomen. A central machine stores different programmes for enhancing different parts of the body
or body systems – for example, there are programmes for the kidneys, the endocrine system, the
digestion, the eyes, the legs and the circulation. Patients sit in a comfortable chair and the energy is
fed into the body via a flat metal plate known as an enhancer. Some patients feel a warmth spreading
from the plate, others say they feel no sensation. Laboratory tests have shown that once the energy is
passed into the body differences can be found in the brain waves; patients report feeling relaxed and
later energized. Teddy Gagnan describes the treatment as 'a food for the body ', supplying energy
where it is deficient. This in turns helps to achieve balance in the body, enabling it to combat disease
and disorder. Cellatroniks technology is currently being used to treat cancer, MS and diabetes in the
United

Input-Output Pairing and Disturbance Rejection of a...
Distillation is the main separation method in chemical process industries. This process involves low
thermodynamic efficiency and high energy demand due to the heat that is added in the bottom
reboiler and thrown away in the top condenser. For this reason, to improve energy–efficient
distillation systems, heat integration concept was first proposed by Brugma [1], Wright [2], Petlyuk
et al.[3] and Freshwater [4,5] almost 70 years ago. Nakaiwa et al. [6] has recently discussed these
systems in an excellent review. In another review, Amiya [7] introduced many other heat integration
schemes which have been developed so far in depth.
Heat pump systems can be used to upgrade heat from a lower quality energy source in the condenser
to a higher quality energy source in the reboiler. Heat pump–assisted distillation column was first
introduced in the mid–1970s [8]. Previously, a number of studies on heat pump–assisted distillation
have been reported in the literature. Omideyi et al. [9] developed a quick selection method for vapor
compression (VC) heat pump assisted distillation columns. Fonyo and Mizsey [10] simplified the
method and included vapor recompression as well as absorption heat pump scheme. Kiss et al. [11]
developed selection scheme of energy efficient technologies for binary distillation. Van de bor et al.
[12] presented a quick performance map and made selection simpler and more suitable.
The most popular heat pump systems are the mechanical ones. In these heat pumps,

Physics : Heat Pump Trainer
College of Engineering
Swansea University
HEAT PUMP TRAINER
Report and Summary Written By:
Ayman mcgarry 836165
Maytham Sarkhouh 687951
Date of Experiment: 26th April 2016
Date of Report: 2nd May 2016 Summary
Table of Contents Page
Summary 2
Table of Contents 3
List of Figures 4
List of Tables 5
1.0 Introduction 6 1.1 Aims 6
2.0 Theory 7
3.0 Materials and Methods 10
4.0 Results 13
4.1 Data Collection for Experiment 1
4.1.1 Error Calculations
4.1.2 Determining Enthalpy
4.1 Data Collection for Experiment 1
4.1.1 Error Calculations
4.1.2 Determining Enthalpy
5.0 Discussion 19
6.0 Conclusions List of Figures
Figure No. Title

2.1 A graphical representation of a carnot heat cycle
3.1
Diagram of the heat pump trainer used
4.1 P–H diagram to determine enthalpy values for 1 fan
4.2
4.3
4.4
4.5
4.6
4.7 P–H diagram to determine enthalpy values for 2 fans
Temperature against control panel readings for experiment 1
Temperature against control panel readings for experiment 2
Power consumption against temperature difference
Actual COP against temperature difference
Heat delivered against temperature difference
List of Tables
Table No. Title 3.1 Equipment List
3.2
4.1
4.2
4.3
4.4
4.5

4.6 Parameters Measured
Experimental data for

The Most Advanced Technology to Prevent Diabetes is the...
Present Technology The most advanced technology for preventing diabetes currently is the insulin
pump. This is a box about the size of a computer mouse and it supplies insulin to your pancreas. It
has many advantages but sadly, it has much more disadvantages. An advantage of having an insulin
pump is that the device delivers insulin to you. It keeps your blood glucose level in range. If your
blood glucose level gets too high you can press a button on your pump to produce insulin (American
Diabetes Association "Insulin Pumps"). It is a great machine to have if you have diabetes, it will
make your life much easier. This has lots of advantages but there are also lots of disadvantages of
the present technology which is why we are improving this a lot.
One disadvantage of the present technology is you have to carry it around everywhere. This is
basically shows everyone that you have diabetes and people might feel uncomfortable. That is why
our invention is a microchip inside you that nobody can see. Another disadvantage of the insulin
pump is every hour or two you have to measure your blood glucose level. People have to monitor
their blood glucose rate for the rest of their lives. But with our microchip you never have to worry
about checking your levels again. Also when people take baths, showers or go swimming they have
to disconnect the pump. With our microchip this never has to be worried about. You have to prick
your finger 4–5 times a day to check your

Advantages And Disadvantages Of Positive Displacement Pumps
By allowing fluid to flow into closed cavity from a source with low pressure, trapping the fluid and
then force it into a receiver which is high–pressure by decreasing the volume of cavity is the
positive displacement pumps work. P.D. pumps have their own advantages and disadvantages but
there are a few pros and cons of these pumps that are similar to each other.
Advantages of P.D. pumps
A highly viscous fluid can be easily handled by a couple rotary technologies and air operated piston
pumps. In centrifugal pumps their flow rate and efficiency start to drop above 500 SSU. This is due
to high friction losses in centrifugal pump. However in rotary pump, the flow and efficiency will
typically increase with viscosity. In addition, fluids with viscosities more than several millions SSU
can ... Show more content on Helpwriting.net ...
Inherently, positive displacement pumps necessarily need safety or pressure relief pumps because
the principle of operation does not include a pressure restriction. However, it is only possible using
complex mass balancing in oscillating positive displacement pumps vibration– free operation.
Besides that, compare to centrifugal pumps, positive displacement pumps which are oscillated are
less suitable for high speeds. It is also a requirement to have a pulsating flow as when the positive
displacement pumps oscillate, it is a pulsation dampener.
The disadvantage in more complicated and complex designs is there are fault–prone constructions
with valves that will cause it the stop working at some point. Other than that, in an oscillating
positive displacement pumps, there will be a larger number of wear parts if it is compared with
centrifugal pump. The major disadvantage of positive displacement pump is pump stroke is
manually set by adjusting the collar for determination of the volumes. It is generally less accurate
and less easily repeatable if it is manual

Evaluation Of A Multi Objective Design Optimization...
Review of a multi–objective design optimization strategy for geothermal heat pump that has been
done before is presented. It was noted that several design variables of GHPs, including equipment
profile & building load (such a size, configurations and type of components), thermodynamic
properties (inlet temperature, temperature of evaporator, mass flow rate and etc.) are optimized by a
genetic algorithm (GA), response surface method (RSM), Taguchi method and so on optimizer
implemented in different software. Commonly objectives were extracted. Moreover, it was observed
that the parameters acting as constraints in some works can be as a design variable in another. The
summarizing is presented as tables.
1. Introduction
There has been a development in the world 's population and also an increment in energy needs in
the most recent years. Moreover, due to the small quantify of fossil fuel, as well as in view of its
non–renewable, more consideration must be paid to alternative energy sources, especially in
residential usage, since these accounts for the majority of energy utilization. Besides, the issue of
energy expenditures for heating and cooling is significant at the present time owing to rising in
energy costs and CO2 punishments [1].
A heat pump practically serves to maintain a climate in the building at a desired level. On the whole,
they are utilized for the heating of the air in winter and cooling it during the summer periods.
Through the use of ground temperature, it

Sump Pump Crisis
Sump Pump | Plumber Sugar Land
A sump pump is essential for homes with the problem of basement flooding, and/or the pooling of
ground water in the basement. Since sump pumps provide protection against flooding and potential
damage to your home, it is important to ensure its continued function with maintenance, sump pump
repair, and replacement when necessary. A Benjamin Franklin Plumbing plumber in Sugar Land can
provide the sump pump services you need.
A flood is one of the worst natural disasters that can hit your home, and it's only natural for you to
want to prevent it from ever happening. Flooding can cause serious damage to a home and its
foundation. In addition, flooding may lead to the formation of mold and mildew in a short time. ...
Show more content on Helpwriting.net ...
The pump removes water by pumping it out of the pit and discharging through a drain line into the
storm sewer, the sewer line, or into a safe area away from your home.
Tips to Avoid Needing a Sump Pump Replacement during an Emergency
1. Pay attention to the sound of the sump pump. If you hear a significant change in the sound, it's a
potential sign the pump may be experiencing a problem.
2. If water is reaching the top of the sump pit, or is overflowing into the basement contact Benjamin
Franklin plumber in Sugar Land for sump pump repair or replacement.
3. If the pump in your home is already more than ten years old, keep a close watch on it, and
continue routine maintenance and inspection by a licensed plumber.
Selecting a Sump Pump
Once the decision to install a sump pump is made, your next decision is the type you need. If you
are unsure, a Benjamin Franklin plumber in Sugar Land can assist you in the selection. The two
most common types of sump pump installed are the pedestal, and the submersible sump pump.
Pedestal sump pumps sit above the sump pit, and are easier to service due to it. They are a typical
choice in unfinished

Water Quality Analysis Of The Potable And Environmental Water
In this research project I conducted the water quality analysis of both the potable and environmental
water at various village sites, and in the New River Lagoon in Belize. The data collected in this
project contributed to the data collected over the past decade by previous McMaster fellows and
scholars. Moreover, we conveyed the results from this study to the community partners in the
villages San Carlos, Rancho Dolores, and with the Programme for Belize–the managing entity of
Rio Bravo Conservation and Management Area ("RBCMA") which borders the New River Lagoon.
In the project we tested for bacterial contaminants, nitrate nitrogen, phosphorous, dissolved oxygen,
pH, free chlorine, and ammonia levels.
In this project we continue to analyze new samples and the baseline data for any trends in high or
low levels of chemicals, as well as to keep the Belizean community appraised of any hazards or
precautions they should be taking for their drinking water. By collaborating with our Belize
community partners, we are able to discuss possible solutions as to better techniques for cleaner
water or more efficient solutions to using clean safe drinking water.
Water is a necessity, but, when water becomes polluted with chemicals, both inorganic and organic,
it makes it difficult to use water for the health benefits and sanitation it is normally used for. Good
water quality is especially vital for Belize, as they are largely an agricultural country. The data
collected by the McMaster

Electrical Submersible Pump
Electrical Submersible Pump Analysis and Design
May 30, 2001
Case Services, Inc.
Abstract
Case Services' software provides production optimization for a variety of different methods of
artificial lift. This paper discusses the dominant factors in electrical centrifugal submersible pump
design and monitoring. Emphasis is placed on three areas: Well inflow performance behavior. Fluid
Pressure–Volume–Temperature and phase behavior. Pump equipment performance specifications.
An examination of fluid dynamics within a centrifugal pump provides appreciation for the need to
analyze the pump "one stage at a time." The importance of individual pump testing is also identified.
This paper ... Show more content on Helpwriting.net ...
In addition, it is crucial to analyze pump performance based on a "known good" condition.
Experience has shown that each serialized pump demonstrates unique performance data. Therefore,
a factory pump test should be obtained before the pump is installed in a well. The data from this test
can be used throughout the equipment life for accurate performance analysis. This discussion is
limited to conventional applications of centrifugal pumps – specifically excluding: Pumps installed
below the producing formation. Downhole gas separation. Variable frequency drive considerations.
Focus is placed upon the pump itself. The downhole motor is discussed only in passing. Steady–
state operation (no pump cycling) is also assumed.
05/30/01
Page 2
Case Services, Inc.
The Basics

This section describes the formulas that are the basis for the csSubmersible suite's calculations.
When employing any pumping method, optimum artificial lift is achieved only when the pump is
closely matched to the well's ability to produce fluids. This is especially true with centrifugal
pumping. Before the pump design process can even begin, an accurate model of the well's inflow
performance must be developed.
How Much Will It Make?
Figure 1 is a rough depiction of the way a producing formation might respond to wellbore pressure.
Flow Rate into Wellbore (STB/D)
1400 1200 1000 800

CD-47 Scholarship Essay
"While this therapy could help many countries in reducing their cancer rates, it is highly expensive.
As a result, we are working towards increasing the affordability of the anti CD–47 therapy.
Unfortunately, developing a solution can take many years, leaving those affected with no option but
to wait until this therapy can be marketed." With an overwhelming sense of disappointment, I leaned
back in my seat as I learned about the anti CD–47 therapy.
CD–47 is a molecule found on the surface of human cells, and functions as a signal for macrophages
to not "eat" the cells. Unfortunately, these molecules also permeate cancer cells, rendering the
cancer cells incapable of being destroyed by the immune system. Through experiments, researchers
developed a treatment using antibodies that could destruct the CD–47 molecules on cancer cells. A
therapy that could stop tumors before ... Show more content on Helpwriting.net ...
The lack of electricity for a great part of the day and the multitude of unattended patients
enlightened me to the difficulty these clinics faced in providing effective health care. While
exploring one clinic with a nurse, we discovered a surgical room illuminated by a flickering light.
Relatively empty due to the lack of advanced technology usually found in the United States, this
experience opened my eyes to the inability of these clinics to afford new technology. Furthermore,
advanced instruments for basic measurements such as blood pressure and temperature exist in
developed countries; however, stethoscopes and antique thermometers still dominate in developing
countries. The unwillingness of developers to market new innovations in these countries led me to
set a goal of developing affordable medical technology for developing clinics in order to aid them in
caring for large numbers of patients safely and

Pump And Treat
Throughout the past few years, Fruitvale has been experiencing a severe water crisis. The banned
pesticide "No–Bug" contaminated the north end of Fruitvale. Recently, the contaminate has been
spreading near the Fruitvale Municipal Water Well. If the water well gets contaminated, Fruitvale
would be without a reliable, clean water source. A common and safe method for contaminated water
clean up is Pump and Treat. Pump and Treat pumps groundwater from the effected wells to an
above–ground treatment system. From there, the treatment system removes and contains the
contaminate plume. Containing the plume keeps the contaminate from spreading and lowering the
future possibility of causing more problems for Fruitvale. This method is time sparing and safe.
Pump and Treat is estimated to be completed in 6 to 9 months. Also, from containing the plume, no
wildlife habitats, rivers or lakes, or drinking water sources would be effected by the contaminate.
Throughout this method no harmful exposure to wildlife or humans will occur. Pump and Treat also
is a popular method. It has been selected or used by more than 800 Superfund sites across America.
... Show more content on Helpwriting.net ...
The large amounts of water being pumped out can cause a decrease in groundwater availability. This
could cause a permanent decrease in the aquifers capacity. The residents may be effected by the
traffic of construction as the systems built also. Tax payers of Fruitvale may have to help out withe
the estimated cost of $400–600 million dollars. Pump and treat meets several of the needs in
Fruitvales water crisis. When you put aside the cost, Pump and Treat is a much safer and efficient
method. Also pump and treat is trusted by several other towns and companies. Not to mention pump
and treat is one of the two methods that meet the time span that Fruitvale is supplying. So, get

Playpumps International Case Study
PlayPumps International aims to alleviate the water crisis in Africa by providing safe, sanitary
drinking water to prevent diseases spreading. They also plan to reduce the manual labour and long
distances that usually women would endure to haul water [12]. So far, products have been installed
in South Africa, Lesotho and Swaziland [12].The goal of PlayPumps International is to build 5000
PlayPumps and benefit up to 10 million people with clean drinking water. They claim that the
roundabout can spin at up to 16rpm, producing up to 1400 litres of water per hour from a depth of
40 metres underground [10]. subsection{Management} subsubsection*{Installation} PlayPumps
International outlines their ... Show more content on Helpwriting.net ...
Despite the organisation claiming to only work on existing boreholes, in cases where new boreholes
were drilled it cost approximately 10000 USD, which was paid for by TNT.[9]
subsection{Technical}
egin{wrapfigure}{l}{0.5 extwidth} egin{center} includegraphics[width=0.48 extwidth]
{LinhPic1} end{center} caption{Fig. 4: PlayPump Process Diagram [12]} end{wrapfigure} The
PlayPump utilises a children 's roundabout or merry–go–round for a unique water solution. As
children play and rotate the roundabout (1), it is designed to pump water by using a conventional
pump (2) from an underground borehole (3). Water is pumped to a polyethylene water tank (4)
located 7m above the ground, where water can be stored for future collection. Access to the water is
from a nearby tap (5). If the tank is completely full, excess water is diverted back into the borehole
via an overflow pipe (6). The elevated water tank is concealed by four large billboards which are
designed to be used for advertising (7).[12] egin{wrapfigure}[14]{r}[2pt]{0.41 extwidth}
vspace{–24pt} egin{center} includegraphics[width=0.4 extwidth]{LinhPic2} end{center}
caption{Fig. 5: PlayPump On Site [22]} end{wrapfigure} Due to the design of the PlayPump, water
must cover an extended distance to travel from the borehole to the tap. This comprises being
pumped several metres horizontally to travel from the borehole below the

Home Sump Pump
Sump pump issues can prove to be particularly problematic for homes that require these devices.
Yet, it is a routine issue for homeowners to be somewhat misinformed about these devices, and this
can be particularly problematic for new homeowners. In addition to helping you to avoid potentially
major damages to your home, having these concerns addressed will make your home's sump pump
far easier for you to understand.
Why Is Your Sump Pump So Important For Your Home?
A sump pump is often installed in the basement or garage of homes that chronically experience
flooding or rainwater intrusion in these areas. These pumps have a moisture sensor that will activate
them the instance excessive moisture is detected. A powerful motor drives these

Dialogue Essay: A Fictional Narrative
As April walked into the bunker she realized something was different about that day. Sure it
appeared the same, but the air had a different feeling. She realized it was electric, and it wasn't
because of the Biff. Doc, come in Doc. Her best friend, May, interrupted April's thoughts. She
turned to her and smiled. Hey McFly, April said as she squeezed May tight, What's up? I asked
if you were ready for take off in an hour! The truth was, April wasn't sure if she was ready. She had
only gone in the simulator a few times, and she knew that experience was completely different to the
actual feeling of traveling through time. Yeah, definitely, April said wearily. Are you? Of
course! I'm stoked! If May had picked up on her best friend's ... Show more content on
Helpwriting.net ...
April looked around and noticed just how beautiful everything was. All she could see was green, and
in the distance, a small town. The air was cleaner than it was back home, with a scent of yellow
roses and a slight breeze. Though it was warm she could feel the wind on her legs and realized how
much she missed her pants, as April and May were already dressed in clothes from the sixties. April
was in a red patterned dress with her auburn hair half–up half–down, like Rachel McAdams in The
Notebook. May had chosen a simple, collared yellow dress and sun hat like a movie she saw once
with Audrey Hepburn. So... now we just walk into town? May asked. Yes, McFly. We just walk
into town and find our subject. And just leave the time machine here? Doc, what if it's found?
We're not exactly in great coverage here. Turn around. April pointed at the cave that would be a
perfect fit for the time machine. Seriously? Isn't this a little too much like Back to the Future? And
why couldn't they have just set our coordinates to that exact spot. Ignoring everything her partner
just said, April replied, Come on, it's on wheels. The girls pushed the large time machine into the
cave and covered it with some brush they found near them. As they stepped back to take in their
handiwork, they smiled as they knew no one would be able to find it. May... are you scared? May
smiled at April, but her face wavered as she saw the frightened look on April's

Advantages And Disadvantages Of Vacuum Pump
Premier Fluid System
When thinking about vacuum pressure pump you will find a number of different points to consider.
One thing that you will have to think about is the kind of device that runs your vacuum pump. Just
like everything you will find benefits and drawbacks. Let us have a look at a few of the different
products you can buy to operate your vacuum pump.
Among the products is definitely an ejector. This is among the easiest and generally utilized as
vacuum pressure producer. The fundamental procedure for the ejector is it converts pressure energy
of the motive fluid into velocity energy because it flows via a usual small nozzle. Ejectors use
various sorts of motive fluid. Steam is among the most typical liquids. A few of the pros ... Show
more content on Helpwriting.net ...
There's no special method of doing it so it's simple for anybody.
Because of not getting moving parts and as being a simple design you can easily repair and
incredibly low maintenance.
Pumps are generally experienced in industries essentially for his or her smooth operation and change
in liquids in one point to the other. Centrifugal pumps are multi–purpose pumps appropriate for a
variety of different programs demanding reliable and price–effective functioning. These pumps
would be the epitome of simplicity and employ centrifugal pressure to maneuver liquids through
piping systems.
A centrifugal pump converts primer mover's energy into kinetic energy and subsequently this kinetic
energy is changed into pressure energy from the fluid being pumped. It offers an impeller having a
central eye by which the fluid makes its way into the pump. Our prime speed impeller speeds up the
fluid radially outward in the pump chasing after. This boosts the fluid pressure and therefore will get
pressed from the pump right into a pipe to carry on its flow.
A few of the benefits of a liquid ring pump for any vacuum pump

Water Pumps In California
Have you ever felt uncomfortable about not taking a shower for two or more days? Well, for many
Californians that rely on failing water pumps, many of them haven't taken a shower in over two to
five months. Three years of over–pumping has caused the water supply in our underground aquifers
to slowly dry up because farmers are pumping more water out than can be replaced by the rain.
Now, because many towns are starting to lose their water due to their reliance on aquifer pumps,
legislation is being considered. But this decision to put a cap on those pumps has many farmers
upset, for these farmers believe that they should have an unlimited access to water. One farmer said
that The city folk are biting the hand that feeds them. But as many farmers believe that they
should have unlimited access to the pumps, many people in the cities that have no water believe that
there should be ... Show more content on Helpwriting.net ...
That means that the more than 40% of California is supplied by aquifers, that means that there is a
lot of water if it is able to support 40% of California. And if California did pass groundwater
regulations, that means that farmers would have to evenly distribute water or lose a lot of their crops
and that would be bad because then farmers would not produce as many crops, that means less
revenue for California. That is why so many farmers are against the groundwater regulations.
Even though all of these people are against the groundwater regulations, they have to think of the
long term effect of pumping groundwater. If we were to keep pumping groundwater, we would
slowly dwindle down our supply of groundwater, which is one of the reasons that California is such
a good place to farm and grow crops. And the more we pump out groundwater the more California
sinks into the gap left by the water that had been pumped out of the ground. That is why
groundwater regulations are important to the future of

President Of Meridian Water Pumps A Little Water Pump...
Introduction: John Lopez, president of Meridian Water Pumps a little water pump maker was
holding a meeting with the department managers. They were currently arranging the creation of
medium –sized pumps for the following 6 months. Mr. Lopez endured a portion of the contending
before he felt it important to stop the dialog as it was going so that he could guide it toward an
answer and a meeting of the key players would be fit for pushing ahead with dissolving their
distinction to turn into a more adequate organization in the implantation of the arranging procedures
that would develop the strategic plan. Analysis: In this particular case describes what can
supervisors do to celebrate and meet up in the process to achieve a concession to a business task?
There 's an outline of contentions between managers which had communicated their disparities in
how they were influenced. Mary Welch, Market and Sales Manager – My sales representatives are
great, yet get exceptionally baffled on occasion. A few times a year ago the business people invested
heaps of their energy attempting to cool off disappointed clients. Straight to the point Jackson,
Production Manager –Comes on, Mary, we know the deals are repeating, yet we never know
precisely when the cycles happen. Regardless of the possibility that we did the Human Resource
(HR) individuals dependably take too long to get us the individuals we require. Elizabeth Conrad,
Human Resource Manager – 'You wager we get irate. The

Case 1: Cj Industries and Heavey Pumps
CJ Industries and Heavey Pumps
Section 2
Case 1
Chris Stowe
Student number: 14210009
2014.11.19
Word Count: 1719 CJ Industries has an opportunity to provide Great Lakes Pleasure Boats with key
engine components for their luxury line of pleasure boats. They earned this through the development
of a strong buyer–supplier relationship with Great Lakes and this 5–year, $10 million annual
contract offers them the chance to have an extended relationship if they can satisfy Great Lakes'
needs. The opportunity is critical for the successful future of CJI and the main goal of the company
should be to completely satisfy the requirements of the contract with Great Lakes, and secure their
future business with Great Lakes. While they do ... Show more content on Helpwriting.net ...
CJI needs to analyze its value chain and decide if building the pumps in–house justify the
capitalization costs, impacts on their relationship with Heavy, and whether it will dilute their
business proficiency.
From Heavey's perspective: They are a small, local company that assumingly delivers quality
products on time and at the convenience of their buyer's needs. While their relationship with CJI
appears to have been professional and successful, they will not be able to continue to supply CJI
with all of their bilge pumps once the demand reaches 50 pumps monthly. This situation forces them
to consider their options which are: to expand their production capabilities or maintain their current
production levels and risk losing their business with CJI. Since they are a small company, they need
to heavily consider whether expanding their production will benefit them in the long term. Certainly
it would help them continue working with CJI, but it will be risky to invest that much in
capitalization when it is entirely possible that CJI could choose to manufacture the pumps in–house
anyways. The major uncertainty centers from the lack of a formalized contract with CJI. Also, they
need

Ffa Creed Research Paper
I believe in the future of agriculture, with a faith born not of words but of deeds..... E.M. Tiffany
wrote the original FFA (Future Farmers of America) creed and it was revised at the 38th and 63rd
FFA National Convention, but it was adopted to the FFA at the third national convention. There are
649,355 current members that know this creed, but that number does not include the alumni
(https://www.ffa.org/about/who–we–are/our–membership). FFA is just only one amazing thing you
can do with agriculture. We will be taking a look at the problems, causes, and the solutions so that
more people can know the FFA creed and can discover something that they didn't know about them
and/or the agriculture experience. Some of the problems are the lack of knowledge, the decline of
agriculture, and the lack of younger generations not wanting anything to do with agriculture. Most
people in the cities like Indianapolis, for example don't think they can do anything with agriculture
because there is not a cornfields nor a bean fields like we ... Show more content on Helpwriting.net
...
Now, for a hydroponics there are three ways you could do it; water culture, multi flow, and ebb and
flow. Water culture is a low cost and easy one and all you need is a styrofoam platform, water, and
plants; Multi flow is a medium cost and is kinda hard to build and all it relies on is gravity flood
plant trays with water and nutrients, a timer, float switch to control water levels, and plants; and
finally Ebb and flow and that's an easy system too and all it takes a plant tray, tubing, water pump,
nutrients, water, and plants. Yet, for all of these you need a container or a fish tank to put them

Creative Story Essay
Ever wondered what happens to brothers when they fight till they leave the house, it's not a straight
away thing but takes little events in their life to turn them against each other, this is one type of
event.
Still in bed, my oldest brother John is still in bed as well. I think he is on his phone he is always on
his phone it's like he is addicted he has problems. My other older brother Leo is awake, packing the
ice box, getting ready for a day of fishing. I also would be up if I was not so tired. Leo has finished
packing and comes in the room, everything is pack you lazy bums, get out of bed and help me put
the ice box in the boat. John responds you want a medal you just everything ready. I slowly get
out of bed, I Look for my ... Show more content on Helpwriting.net ...
The boat came off smoothly with the new trailer dad made. Leo says when the boats off quickly
slow poke get the tractor to the house while he holds onto the boat I drove the tractor in front of the
house. I run back to the creek where we launched the boat. Getting to the creek I tell Leo hold onto
the boat until I get the engine running I know, then I will push the boat to the mouth of the creek.
It's not the first time I have done this. I get up to the wheel passing Marty. I turn the key, the engine
gives grunt and does not turn on, Leo responds do you know how to turn on the motor I know
how to turn a key Leo shut up and wait for the motor to turn on I turn the key again and with a
grunt again it turns on with a sound of power. Leo pushes off to the mouth of the creek, while
jumping on the boat saying. now that was not hard was it you just needed to turn the key. shut up
I know what I had to do. can you two shut up and remember what dad said about his dad's
brothers. Said Marty trying to be a peace keeper, I rolled my eyes and drove out. John drove the
boat out 100 meters into the sea, then he stops the boat because he was not hearing the pump for the
fuel. Leo and John move to the back of the boat, while Marty runs around the

How John Snow Tested The Water Supply At Broad Street Essay
Science in the 1850s was very underdeveloped as compared to the technology we have this day.
Therefore it would have been incredibly challenging for scientists, like John Snow, to hold labs and
experiment. One big factor I noticed that differentiates the two centuries was how John Snow tested
the water supply at Broad Street. These days, epidemiologists and scientists use meters or
technology to test the groundwater. However, John Snow had no other choice but to drink–test it
himself; this was his method that led him to discover water–borne diseases. From this, we can learn
how much John Snow was devoted to discovering better health for the communities. When John
Snow gathered his data, he knew that eliminating differences in location or other factors would mess
the result of the study. Rather keeping the confounding variable the same would help him find the
problem of the study, which was water.
London was going through a revolution, everyone living in the city for jobs, overpopulated and
starting to get polluted. However, John Snow did not budge even with this kind of adversity; but
rather was fascinated by the environment. Because during that time, London gave John Snow great
chances to examine and study water and air–borne diseases, which is not commonly seen in rich and
clean countrysides. John Snow and his partners resided in London to discover new diseases and the
cure for that.
Not only was John Snow played a big part of the history of epidemiology, but his partner

Where Are the Light Switches? Essay
The task before Dad, Deb, and me was to gather the essentials necessary to scratch out an acceptable
existence in this hostile Comfort Island environment. One more night as a family at the Maple Crest
and then we'd move to our respective residences. I realized, as did Dad and Deb, that we had
important preparations to make. We needed to get kerosene for the oil lamps, gas for the water pump
and ice for the icebox. The prospect of using the coal stove anytime soon was not a serious concern.
Dad had made a list and after he returned from taking the plumber back to shore, we scouted around
to see what we had and what we still needed. We conducted our search together. In the storage room
beyond the kitchen I spotted two tongs that resembled a ... Show more content on Helpwriting.net ...
The hand–operated bilge pump had become as important to the operation of the Buzz as the
gearshift or the tiller. The wood bottom was in worse shape than the motor. I put on a rain slicker
and walked over to the dock early to pump the water out so we could get going sooner rather than
later. It routinely took me fifteen minutes each morning to complete the task. Dad and Deb arrived at
the dock just before I finished pumping. Dad warmed up the engine then he piloted the boat to
Rogers Marina, which was around the corner from Otter Creek and Wilford's on our right as we
entered the upper bay. The gas dock was crowded when we arrived. We left the boat on a side dock
so they could fix the light when they had a lull.
Let's go to the Cheese Paris for brunch so we can eat and get out of this rain. Deb said. Dad
preferred the Homestead where he could have an adult beverage with lunch, but we all realized that
this was a work day and there wasn't time to dawdle. When we finished eating, Dad and I walked
across the street to Collins Kellett Hardware while Deb took sandwich orders for the three of us,
and she proceeded to Cavallario's Market Deli to have our sandwiches made. Deb also picked up
cereal, milk and orange juice as survival rations for the next morning. At the hardware, Dad
purchased a gas can and a dispenser for kerosene, which they filled there. I carried the

Case Study Of Centrifugal Pump
Economic Aspect Study
4.1 Profitability of Centrifugal Pump after Implementation of Optimum Maintenance Task
Table 4.1 Total Labor Required For Maintenance [Reputed Manufacturing Company] Frequency
Time
(Hours) No. of Workers Man – hour per stage
Six Monthly 2 18 4 144
Monthly 9 6 3 162
Weakly 45 8.2 1 369
Table 4.2 Labor Saving Cost [BHEL Bhopal Source]
Item Labor Type Number of Labors Per Day
(Current Maintenance) Number of Labors Per Day
(After implementation)
Engineers
(45,000 `/Month) Mechanical 4 3 Electrical 3 2 Control 4 2
Technicians
(25,000 `/ Month) Mechanical 6 4 Electrical 6 4
Total Cost (`/ Year) 7,95,000/– 5,15,000/–
Saving Cost (%) = 35.22
Table 4.3 Downtime Cost [BHEL Bhopal Source]
Average downtime cost rate = ` ... Show more content on Helpwriting.net ...
Equipment:
Centrifugal pump of brine handling
Industry/ section: VPI section (BHEL BHOPAL)
Year of implementation: 11 April 2015
Cost Benefits Analysis:
The power consumption from 19 kw dropped to 12.63 kw (approx.). The cost of VSD for 20HP
drive was around ` 94,752/– and the payback period was 5 months. Implementation Highlights:
To my knowledge, after its implementation the management of BHEL decided to implement it in
other terminal or units.
Summary:

By installation of VSD in centrifugal pump, the power consumption from 19 kw dropped to 12.63
kw (approx.).
Background:
In BHEL VPI at Bhopal and at other brine handling from the storage tank is pumped to the tankers.
These tankers goes on varying in number and the output of the pump is controlled by opening the
recirculation valve which feeds back some of the oil back to the storage tank and in this process,
power consumption remains same irrespective of the number of tankers i.e. lot of power wastes.
This process is known as recirculation method. The capacity of the motor connected with pump was
26 kw.

Heat Pump Lab Essay
MECHANICAL ENGINEERING 449 SENIOR LAB
Test of a Heat Pump
Submitted
Submitted by:
Submitted to:
Executive Summary:
The purpose of this experiment was to determine the performance values of a Hylton Air and Water
Heat Pump System. The system uses refrigerant 134a and water as the working fluids. The power
input of the system was measured. The rate of heat output and the coefficient of performance are to
be determined. A sketch of the vapor–compression cycle on a pressure–enthalpy diagram is also to
be presented.
In order to perform this analysis the temperatures at the inlet and outlet of the condenser and
evaporator were measured for ... Show more content on Helpwriting.net ...
The energy balances are to be verified over the condenser and evaporator. The efficiency of the
compressor is to be determined. Lastly, an energy balance of the compressor is to be performed.
Apparatus:
Figure 1 depicts the cycle used in this experiment and its individual control volumes. The system
uses water and refrigerant 134–a as the working fluids. The cycle operates between two different
pressures, the high pressure of the condenser and the low pressure of the evaporator. The condenser
is used to remove sufficient energy from the refrigerant to transform it completely into liquid. The
evaporator is used to vaporize the refrigerant by adding energy supplied by the warm water. The
throttling valve serves the purpose of reducing the pressure of the refrigerant resulting in isenthalpic
expansion. The compressor supplies energy to the refrigerant, and under ideal conditions works in a
quasistatic adiabatic manner.
Figure 1: Schematic of Heat Pump Cycle

Figure 2 depicts the Hylton Air and Water Heat Pump Systems used for this experiment. Viewing
Figure 2, the incoming cold water splits into two separate lines. One line heads towards the
evaporator and the other line heads towards the condenser. The flow rate of each line is measured as
seen right after t5 for the condenser and t8 for the evaporator. The water line heading to the
condenser is first routed through the compressor for

A320 Induction Technical Test Essay
A320 Induction Technical Test
Total Marks: 50 Test Duration: 2hrs
1) The normal priority for supplying electrical power to the AC busses is:
a) External power, engine generators then APU
b) External power, APU, then engine generators
c) APU, external power then engine generators
d) Engine generators, external power then APU
2) What is the maximum altitude at which the APU may be started using the batteries only? a) 15,
000 ft
b) 30, 000 ft
c) 25, 000 ft
d) 39, 000 ft
3) Can APU be used for Wing Anti Ice?
a) No
b) Yes but only below FL150
c) Yes but only when one pack is OFF
d) Yes can be used without any restrictions.
4) In normal flight in closed circuit configuration, the avionics ventilation system controls the ...
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a) Load factor limitation,
b) Pitch attitude protection Bank angle protection.
c) High angle of attack protection High speed protection.
d) All of the above.
21)When the flight control law is in direct law which of the following is displayed on
PFD?
Page 5 of 13
a) USE MAN PITCH TRIM
b) MAN PITCH TRIM ONLY
c) Both a b
d) None of the above.
22)In Alpha floor condition, which of the following statements are correct.
a) Aircraft speed increases to 300 Kt
b) Auto thrust function becomes active.
c) TOGA thrust is selected irrespective of thrust lever position.

d) Both b c.
23)For latching the side sticks priority condition, and for releasing the sidestick without losing
authority, it is recommended to press the takeover pushbutton for more than
______ seconds.
a) 3 seconds
b) 40 seconds
c) 45 seconds
d) 10 seconds
24)Which of the following computer is involved in Yaw control?
a) SECs
b) SFCCs
c) FACs
Page 6 of 13
d) None of the above.
25)Being in alternate law , when the Landing gear is extended control laws change to
a) Normal Law
b) Direct law
c) Mechanical back up
d) None of the above
26)What is alternate parameter for setting the power?
a) EPR
b) N1
c) N2
d) Fuel Flow
27)To deploy the door slide, the door is to be opened:
a) In ARM from inside
b) In ARM from

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