Trace The Evolution Of A Product

Running Head : exploitation of the RefrigeratorEvolution of the RefrigeratorEvolution of the RefrigeratorFood is a prime extremity and nutriment preservation has been a primary concern for unblemished humanity since the early days of civilization . The modern refrigerator is capable of addressing solely our food preservation needs , micro wonder that this particular home appliance is the most widely mappingd among all other home appliance return . The importance of the refrigerator in our daily lives is revealed by the particular the refrigerator is found in approximately 99 .5 of American Homes (History .comPrior to the advent of the refrigerator people indulged in many intricate and time consuming activities in to prevent spoliation of stored food . Ice harvesting was widely practiced in frore places the process involved storing sheets of natural ice in insulated ditches for use in the summer season . In warm places join was salted and smoked in to preserve it over keen-sighted periods (History .com . These practices had their pros and cons and of these techniques could guarantee protection of food over prolonged periods . The refrigerator has changed our lives because this appliance can be use for preservation of all kinds of food items , in fact the refrigerator occupies a self-aggrandising position in the independent .com list of 101 gadgets that changed our lives (Usborn 2007The Evolution of the Refrigerator TechnologyRefrigerator preserves food by maintaining it at a near freezing temperature which prohibits breeding of microbes and thereby preventing food spoilage . Refrigerators work on the second low of thermodynamics The com specifyer memory line of business of the refrigerator is surrounded by loops of tube where a molten gas called coolant is made to circulate . As the coolant circulates it absorbs heat from the storage chamber thereby lowering the temperature of the storage area . As the coolant absorbs heat its temperature increases and it gradually vaporizes .

After passing through the inherent circuit the coolant is sucked into the compressor where it is compressed into liquid state once once more and the entire cycle repeats over and over again (energyquest .gov .ca . This dominion has been used in the very commencement refrigerator and the portray day refrigerator continues to work on this very principleIn 1784 William Cullen of the Glasgow University counterbalance demonstrated refrigeration but he did not put this discovery to practical use , later in 1834 Jacob Perkins first designed a practical refrigerator using aether as a coolant . In 1844 Dr John Gorrie designed a refrigerator that could make ice , later Carl von Linden a German engineer invented a process of liquefying gas interminably , this was a major breakthrough because this technology could be used to create better performing refrigerators (About .comKelvinator and General Electric were pioneers in the field of refrigerator manufacturing . The refrigerators made during 1915 consisted of storage unit that was attached to an external compressor , the compressor was driven by an external electric labour , most often the motor was kept in a basement or in an adjoining room and a conveyor...If you want to get a full essay, order it on our website: Orderessay

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