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Topic: Refrigeration

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  HVAC Training School, Phoenix AZ - The Refrigeration School Inc
Job prospects for highly skilled heating, air conditioning and refrigeration mechanics and installers are expected to be very good, particularly for those with technical HVAC training.
The Refrigeration School, Inc or RSI trains you in the technical services that are needed today and challenges the student to reach his or her highest level of academic knowledge and leadership capabilities.
The Refrigeration School, Inc was founded in Phoenix, Arizona in 1965 and the campus consists of two buildings with 21,000 square feet of classroom, lab, and support service facilities.
www.refrigerationschool.com   (510 words)

  Refrigeration & Food Safety
A refrigerator is one of the most important pieces of equipment in the kitchen for keeping foods safe.
Cooling wine via this method was recorded in 1550, as were the words "to refrigerate." The evolution to mechanical refrigeration, a compressor with refrigerant, was a long, slow process and was introduced in the last quarter of the 19th century.
The old refrigerant known to most people as "freon," a tradename, was replaced with HFC 134a, a new refrigerant less injurious to the ozone and still just as effective in keeping food cold.
www.fsis.usda.gov /Fact_Sheets/Refrigeration_&_Food_Safety/index.asp   (1476 words)

  Refrigeration - MSN Encarta
In mechanical refrigeration, constant cooling is achieved by the circulation of a refrigerant in a closed system, in which it evaporates to a gas and then condenses back again to a liquid in a continuous cycle.
A frozen-food refrigerator resembles the household refrigerator except that its compressor and motor must be of sufficient size to handle the larger gas volume of the refrigerant at its lower evaporator pressure.
In such gas refrigerators a strong solution of ammonia in water is heated by a gas flame in a container called a generator, and the ammonia is driven off as a vapor, which passes into a condenser.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761559433   (1043 words)

  Refrigeration - Wikipedia, the free encyclopedia
Refrigeration (from the Latin frigus, frost) is generally the cooling of a body by the transfer of a portion of its heat away from it.
The gas absorption refrigerator, which cools by the use of a source of heat, was invented in Sweden by Baltzar von Platen in 1922.
Refrigerated trucks (or simply refrigerators) are used to transport perishable goods, such as, for instance, frozen foods, fruit and vegetables, and temperature-sensitive chemicals.
en.wikipedia.org /wiki/Refrigeration   (612 words)

 Solar refrigeration and solar refrigeration including refrigeration
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lynnkurland.com /bboard/messages/72167.html   (1090 words)

 refrigeration. The Columbia Encyclopedia, Sixth Edition. 2001-05
Refrigeration in its modern, portable form also depends on insulating materials that are thin yet effective.
Mechanical refrigeration systems are based on the principle that absorption of heat by a fluid (refrigerant) as it changes from a liquid to a gas lowers the temperature of the objects around it.
In the compression system, which is employed in electric home refrigerators and commercial installations, a compressor, controlled by a thermostat, exerts pressure on a vaporized refrigerant, forcing it to pass through a condenser, where it loses heat and liquefies.
www.bartleby.com /65/re/refriger.html   (628 words)

 Refrigeration and Phase Changes
As we shall see, refrigerators (and air conditioners) rely on the thermodynamic application known as the heat engine, as well as the molecular properties of the substance contained in the coils of the refrigerator.
In the refrigerator, the heat that is generated is transferred to the outside of the refrigerator.
To cool the refrigerator, a "working substance", or "coolant", such as Freon is required.The refrigerator works by a cycle of compressing and expanding the Freon, combined with phase transitions between the gaseous and liquid phases of Freon.
www.chemistry.wustl.edu /~edudev/LabTutorials/Thermochem/Fridge.html   (3044 words)

 Refrigeration tools and refrigeration tools including refrigeration   (Site not responding. Last check: )
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http://true-refrigeration.turt.org true refrigeration and mayekawa refrigeration compressor.
http://commercial-refrigeration-equipment.turt.org commercial refrigeration equipment and Kramer Refrigeration.
horrigangang.com /wwwboard/messages/314.htm   (641 words)

The first known artificial refrigeration was demonstrated by William Cullen at the University of Glasgow in 1748.
The first refrigerated car to carry fresh fruit was built in 1867 by Parker Earle of Illinois, who shipped strawberries on the Illinois Central Railroad.
Brewing was the first activity in the northern states to use mechanical refrigeration extensively, beginning with an absorption machine used by S. Liebmann’s Sons Brewing Company in Brooklyn, New York in 1870.
www.rogersrefrig.com /history.html   (1665 words)

Refrigeration of essential medical products such as vaccines and blood, is often indispensable for ensuring their preservation.
Because of their energy consumption and of possible emissions of the refrigerant, the potential climate impact of refrigeration is an important issue.  For many years all the players of the industrial chain have collaborated to bring solution through technical innovation and better practices.
Refrigeration is also one of the topics discussed during the Workshops held by EFCTC on the responsible use of HFCs.
www.fluorocarbons.org /en/applications/refrigeration.html   (1108 words)

 ENERGYSmart Library for Business
Refrigeration compressors are sized to meet the maximum cooling load, but they are normally required to provide only a part of that load.
Refrigeration case covers can be used to reduce cooling losses when the business is closed.
They can reduce refrigeration by 50%, use 50% to 75% less refrigerant piping, reduce the likelihood of a refrigerant leak, cut installation costs, and eliminate 7% to 8% of the parasitic losses common in conventional installations.
www.energyguide.com /library/EnergyLibraryTopic.asp?bid=uec&prd=20&TID=16018&SubjectID=8180   (508 words)

 Refrigeration   (Site not responding. Last check: )
Refrigerators for solar electricity should be the most efficient, lowest energy consumption available.
Refrigerators that are specially designed for off-grid homes require fewer solar modules and less generator run time.
Refrigerator section is 6.4 cubic feet, and top freezer section is 1.6 cubic feet.
www.backwoodssolar.com /Catalogpages2/refriger2.htm   (1700 words)

 [No title]   (Site not responding. Last check: )
However, in a refrigeration and air conditioning system, there are typically three sources of noise: the compressor (in the typical vapour-compression machine), the fans to force the air around in the vaporiser and the condenser, and the two-phase fluid flow (with its characteristic hissing).
In a refrigerator, heat flows from the cold load down to the colder vaporiser (in a common refrigerator), where it increases the refrigerant thermal energy, that is converted adiabatically to a much higher temperature, from where heat flows, down the temperature scale again, to the ambient sink.
There are two working fluids in an absorption refrigerator, the refrigerant (as for a vapour-compression refrigerator), and the carrier, that is the auxiliary liquid that absorbs the refrigerant (in the absorber), is pumped up to high pressure, and releases the refrigerant vapours at the generator.
imartinez.etsin.upm.es /bk3/c18/Refrigeration.doc   (7525 words)

 Class Definition for Class 62 - REFRIGERATION
Subject matter in which a refrigeration effect is produced by (1) a chemical reaction or (2) the dissolving of a solid in a liquid.
for a refrigerant or coolant storer or handler.
Processes in which material to be cooled or refrigerated is an article comprising a physical entity identifiable as such before congelation and having a fixed boundary surface including particulate material, a removable container enclosing a liquid or a living thing.
www.uspto.gov /go/classification/uspc062/defs062.htm   (3668 words)

 refrigeration - HighBeam Encyclopedia   (Site not responding. Last check: )
refrigeration process for drawing heat from substances to lower their temperature, often for purposes of preservation.
The North American Refrigeration Controls Market Is Expected To Witness Slow But Steady Growth Rates From 2006-2012, Largely Due To The Rising Demand From The Commercial Market.
Weathering a chilling effect: innovation in commercial refrigeration is hampered by CFC, efficiency, cost, and food preservation issues.
www.encyclopedia.com /doc/1E1-refriger.html   (1037 words)

 Refrigeration | World of Invention
Refrigeration is the process of removing heat from a substance to produce a low temperature.
Refrigeration works by placing something to be cooled near a refrigerant, something cooler that will absorb heat.
Mechanical refrigeration is important today for many uses beyond food preservation-for example, air conditioning, storage of medical supplies and drugs, medical and surgical techniques, and manufacturing and industrial processes of all kinds, including liquid-air applications.
www.bookrags.com /research/refrigeration-woi   (866 words)

 Refrigeration hardware and refrigeration hardware including refrigeration
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 Wine refrigeration and wine refrigeration including refrigeration
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 Refrigeration repair north dallas and refrigeration repair north dallas including refrigeration   (Site not responding. Last check: )
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www.jimhouck.com /wwwboard/messages/803.html   (595 words)

 Commercial refrigeration equipment and commercial refrigeration equipment including refrigeration
http://industrial-refrigeration-equipment.turt.org industrial refrigeration equipment and solar refrigeration.
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http://refrigeration-equipment.turt.org refrigeration equipment and henry refrigeration valve.
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 Ammonia Refrigeration   (Site not responding. Last check: )
Even though modern ammonia refrigeration systems are designed to avoid any accidental release of ammonia, leaks and spills continue to occur each year, causing injuries, deaths and loss of millions of dollars in product.
Facilities unwilling to invest in training and keeping their refrigeration system in good condition are the most likely to experience an accidental release.
Because oil used in refrigeration systems is designed to easily mix with the refrigerant, and oil traps are not 100 percent effective, some oil carryover will occur.
www.hsb.com /thelocomotive/Story/FullStory/ST-FS-AMMONIA.html   (2488 words)

 Refrigeration Home   (Site not responding. Last check: )
Most notably, the development of refrigeration technology gave rise to a vast food processing industry that changed the eating habits of mankind on a global level.
Where once diets were limited to those foods that required no refrigeration or those that could be preserved via smoking or salting, large-scale refrigeration opened opportunities for not only preserving, but also shipping fragile foods over long distances.
Today’s natural gas engine-driven refrigeration equipment is especially beneficial where there is a need for heat recovery for container sterilization, general cleaning purposes, space heating and other thermal energy uses.
www.gasairconditioning.org /refrigeration_home.htm   (346 words)

 Ice rink refrigeration and ice rink refrigeration including refrigeration   (Site not responding. Last check: )
Refrigeration repair north dallas in http://engine-driven-refrigeration.turt.org engine driven refrigeration.
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: http://www.watchwise.net/bbs/messages/3450.html How Refrigeration Evaporator Works
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 FlyingTrapeze.Org   (Site not responding. Last check: )
Small refrigeration compressor made in danmark in http://history-of-refrigeration.turt.org history of refrigeration.
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