Difference between revisions of "Refrigerators"
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[[File:Refrigerator.jpg|thumb|right|Refrigerators]] | |||
'''Refrigerator''' (colloquially fridge) is a common household appliance that consists of a thermally insulated compartment and a heat pump (mechanical, electronic, or chemical) that transfers heat from the inside of the fridge to its external environment so that the inside of the fridge is cooled to a temperature below the ambient temperature of the room. Cooling is a popular food storage technique in developed countries. Lower temperatures in a confined volume will lower the reproduction rate of bacteria, so the refrigerator is used to reduce the rate of spoilage of foodstuffs. | |||
A refrigerator maintains a temperature a few degrees above the freezing point of water. Optimum temperature range for perishable food storage is 3 to 5 °C . A similar device which maintains a temperature below the freezing point of water is called [[Freezers]]. | |||
The refrigerator is a relatively modern invention among kitchen appliances. It replaced the icebox, which had been a common household appliance for almost a century and a half prior. For this reason, a refrigerator is sometimes referred to as an icebox. | |||
Latest revision as of 07:41, 4 August 2012
Refrigerator (colloquially fridge) is a common household appliance that consists of a thermally insulated compartment and a heat pump (mechanical, electronic, or chemical) that transfers heat from the inside of the fridge to its external environment so that the inside of the fridge is cooled to a temperature below the ambient temperature of the room. Cooling is a popular food storage technique in developed countries. Lower temperatures in a confined volume will lower the reproduction rate of bacteria, so the refrigerator is used to reduce the rate of spoilage of foodstuffs.
A refrigerator maintains a temperature a few degrees above the freezing point of water. Optimum temperature range for perishable food storage is 3 to 5 °C . A similar device which maintains a temperature below the freezing point of water is called Freezers.
The refrigerator is a relatively modern invention among kitchen appliances. It replaced the icebox, which had been a common household appliance for almost a century and a half prior. For this reason, a refrigerator is sometimes referred to as an icebox.