Download high resolution version (1632x1232, 364 KB) File links The following pages link to this file: User:Saopaulo1 Domestic refrigerator Categories: GFDL images ...

Download high resolution version (1632x1232, 364 KB) File links The following pages link to this file: User:Saopaulo1 Domestic refrigerator Categories: GFDL images ...

The inside of a fridge

Domestic refrigerators (usually shortened to fridge) are amongst the most common electric applicances in the world, for instance being present in 99.5% of American homes. They use 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. ...refrigeration to help preserve Food from plant sources Food is any substance normally eaten or drunk by living organisms. ...food. They invariably work using A phase change heat pump employs a liquid with a low boiling point to transfer heat from cooler space to a warmer space; generally in a refrigeration application. ...phase change heat pumps operating in a A refrigeration cycle describes the changes that take place to a refrigerant in absorbing heat and subsequently radiating it as it is circulated around a refrigerator. ...refrigeration cycle.

They may consist of either a cooling compartment only (a larder refrigerator) or a freezing compartment only (a freezer) or contain both. The dual compartment was introduced commercially by The General Electric Company, or GE, (NYSE: GE) is a multinational technology and services company. ...General Electric in 1939 was a common year starting on Sunday (link will take you to calendar). ...1939. Some refrigerators are now divided into four zones for the storage of different types of food:

• _18°C or 0°F (freezer)
• 0°C or 32°F ( Meat is animal flesh (mainly muscle tissue) used as food, sometimes with the exception of fish, other seafood, and poultry. ...meats)
• 4°C or 40°F (refrigerator)
• 10°C or 50°F (vegetables), for the storage of different food types.

The capacity of the refrigerator (freezer and/or fridge) is measured in The litre (or liter in US) is a metric unit of volume. ...litres (or This article is about a foot as a unit of length. ...cu. ft.). Typically the freezer volume is 100 litres (this will vary) and the fridge 140 litres.

Types

• Freestanding
• Built under: fridges and freezers which can be installed under the counter top.
• Integrated.
• In_Column fridges or freezers: these are built into a tall Alternate meanings in cabinet (disambiguation) A Cabinet is a body of high_ranking members of government, typically representing the executive branch. ...cabinet in your A kitchen is a room used for food preparation. ...kitchen Furniture is the collective term for the movable objects which support the human body (seating furniture and beds), provide storage, and hold objects on horizontal surfaces above the ground. ...furniture. The appliance is built in to your kitchen so that it looks like a normal cupboard. Getting the right size fridge is very important when choosing integrated.

Freezer situation

• Eye level freezer refrigerator (or top mount).
• Bottom freezer refrigerator (or bottom mount). The freezer is generally bigger and the refrigerator has two independent Compressor has several meanings: A gas compressor is a mechanical device that takes in a gas and increases its pressure by squeezing a volume of it into a smaller volume. ...motor_compressors.

Features

Some newer refrigerators may feature:

• An LCD redirects here. ...LCD suggesting what types of food should be stored at what temperatures and the expiry date of the food stored.

• Filter Status Indicator tells you when it's time for a change

• A power failure warning, alerting the user to the failure, usually by flashing the Temperature is the physical property of a system which underlies the common notions of hot and cold; the material with the higher temperature is said to be hotter. ...temperature display. The maximum temperature reached during the power failure may be displayed, along with information on whether the frozen food has defrosted or may contain harmful Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ...bacteria.

• Frost_free operation. Over time atmospheric Boundaries: Phase, Pressure, Temperature Evaporation/Sublimation Whenever a water molecule leaves a surface, it is said to have evaporated. ...water vapour condenses onto the cooling coils as Icicles A natural ice block in Iceland Ice is the solid form of water. ...ice, which can eventually build up into a layer several centimetres thick. This can be removed by emptying the refrigerator and turning it off so that the ice melts. In a refrigerator equipped for frost_free operation, a HVAC may also stand for High_voltage alternating current HVAC is an initialism that stands for heating, ventilation and air_conditioning. This is sometimes referred to as climate control. ...heater and a A thermostat is a device for maintaining the temperature of a system within a range by controlling the flow of heat energy into or out of the system. ...thermostat are fitted around the cooling coils. Every six hours or so the cooling is switched off and the heater turned on until the temperature around the coils slightly exceeds the Freezing is a common method of food preservation which slows both food decay and the growth of microorganisms and, by turning water to ice, makes it unavailable for bacterial growth and chemical reactions. ...freezing point of water when normal cooling is restored. This melts any ice which has collected around the coils and prevents it from building up.

An increasingly important environmental concern is the disposal of old refrigerators _ initially because of the Freon is a trade name for a group of chlorofluorocarbons used primarily as a refrigerant. ...freon coolant damaging the The ozone layer is that part of the Earths stratosphere which contains relatively high concentrations of ozone. ...ozone layer, but as the older generation of refrigerators disappears it is the destruction of CFC_bearing This page refers to thermal insulation. ...insulation which causes concern. Modern refrigerators usually use a 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. ...refrigerant called HFC_134a (1,2,2,2_tetrafluoroethane) instead of freon, which has no ozone layer depleting properties.

Microwave_refrigerator combo

A microwave/refrigerator combo is a freezer, fridge and Microwave oven A microwave oven is a kitchen appliance employing microwave radiation primarily to cook food. ...microwave oven combined into a single, compact, energy_efficient unit. The foods can be translated from one compartiment to the other one following a timer to defrost, warm and cook them (with a week program, if necessary).

History

Although A mobile structure used in ice fishing may also be known as an icehouse Categories: Buildings and structures stubs ...ice houses have been used for thousands of years to provide a source of ice in summer, the first common domestic refrigeration was in the form of ice boxes in the latter years of the Alternative meaning: Nineteenth Century (periodical) (18th century — 19th century — 20th century — more centuries) As a means of recording the passage of time, the 19th century was that century which lasted from 1801_1900 in the sense of the Gregorian calendar. ...19th Century. As the ice melted it was replaced with ice bought from commercial manufacturers.

In 1856 was a leap year starting on Tuesday (see link for calendar). ...1856, using the principle of vapour compression, Australian James Harrison produced the world's first practical refrigerator. He was commissioned by a brewery to build a machine that cooled beer.

The first domestic refrigerator was apparently manufactured in 1913 is a common year starting on Wednesday. ...1913 by Fred W. Wolf Jnr. in Chicagos skyline at day Chicago is the third largest city in the United States, after New York City and Los Angeles, with an official population of 2,896,016, as of the 2000 US Census. ...Chicago, and called the DOMELRE (DOMestic ELectric REfrigerator). It was not commercially successful, that distinction apparently going to the Kelvinator Appliance ad from 1951 Kelvinator is an appliance company since 1994 owned by Electrolux of Sweden. ...Kelvinator Company. This company was formed in May 1916 is a leap year starting on Saturday (link will take you to calendar) Events January-February January 1 -The first successful blood transfusion using blood that had been stored and cooled. ...1916 as the Electro_Automatic Refrigerating Company by Edmund J. Copeland and an industrialist, Arnold H. Gross. The company was renamed within two months to the Kelvinator Company and produced their first model shortly afterwards. Like most of their modern descendents, this refrigerator cooled using a A phase change heat pump employs a liquid with a low boiling point to transfer heat from cooler space to a warmer space; generally in a refrigeration application. ...phase change heat pump.

The first refrigerators were of the "remote" type, essentially an upgrade of an existing ice box with the installation of a cooling unit in it, but the The adjective motor refers to a motoneuron. ...motor, Compressor has several meanings: A gas compressor is a mechanical device that takes in a gas and increases its pressure by squeezing a volume of it into a smaller volume. ...compressor and The term condenser has the following meanings: In electronics, it is another (more old_fashioned) word for capacitor. ...condenser installed either beside it or in the basement. The first self_contained refrigerators were not manufactured until Events January_May January 3 _ Benito Mussolini announces he is taking dictatorial powers over Italy. ...1925.

The earliest units used For a list of biologically injurious substances, including toxins and other materials, as well as their effects, see poison. ...toxic refrigerants, typically Ammonia is a chemical compound with the formula N H3. ...ammonia (R_717), Sulfur dioxide (or Sulphur dioxide) has the chemical formula SO2. ...sulfur dioxide (R_764), or Chloromethane or Methyl chloride is a chemical compound once widely used as a refrigerant. ...methyl chloride (R_40) as their refrigerant.

The first refrigerator to see widespread use was the The General Electric Company, or GE, (NYSE: GE) is a multinational technology and services company. ...General Electric "Monitor_Top" refrigerator introduced in Events January 7 _ First transatlantic telephone call _ New York City to London January 9 _ Military rebellion crushed in Lisbon January 14 _ Paul Doumer elected president of France January 19 _ Britain sends troops to China February 12 _ First British troops lad on Shanghai February 14 _ Earthquake in Yugoslavia _ 700 dead February...1927. The compressor assembly, which produced substantial heat, was placed above the cabinet, and surrounded with a decorative ring. Over 1,000,000 units were produced. This refrigerator used sulfur dioxide refrigerant. Many units are still functional today.

In the early 1920 is a leap year starting on Thursday (link will take you to calendar) Events January January 7 _ Forces of Russian White admiral Kolchak surrender in Krasnoyarsk. ...1920s the industry grew considerably, with some other manufacturers using absorption of Ammonia is a chemical compound with the formula N H3. ...ammonia in water instead of liquifying a gas through compression to achieve the phase change. However, these were not very successful, largely because of public predujice against ammonia as a refrigerant. Today they are used in homes that are not connected to the The term grid has several meanings in various fields: in mathematics and geometry, a grid is a system of two sets of lines that intersect each other at a fixed angle, usually a right angle (i. ...electric grid, and in recreational vehicles because they can be efficiently powered using a heat source rather than an electric motor.

It was not until the 1931 is a common year starting on Thursday. ...1931 that This article is about the DuPont company. ...Dupont produced commerical quantities of Dichlorodifluoromethane, or R_12, is a halomethane used as a refrigerant and propellant in aerosol sprays until its manufacture was discontinued due to concerns about damage to the ozone layer. ...R_12, the first refrigerant which was neither toxic nor For other uses see fire (disambiguation). ...inflammable.

See also: Microwave Slang for small waves, like at a beach, often used by surfers. ...microwave refrigerator combo, side-by-side, ice and water A dispenser is an automated machine that can provide something already stored in it, when spurred by human operator. ...dispenser, For the American rapper and actor, see Ice Cube. ...ice cube A tray is a shallow container designed for carrying things. ...tray, A Larder is a cool area for storing food prior to use. ...larder, This article is about the weather phenomenon. ...defrost (manual, frost free), A Chiller is an air conditioning unit used primarily in commercial and industrial facilities to provide high capacity HVAC control. ...chiller, A reversible process (or reversible cycle if the process is cyclic) , in thermodynamics, is a process that can be reversed by means of infinitesimal changes in some property of the system (Sears and Salinger, 1986). ...reversible door, Compressor has several meanings: A gas compressor is a mechanical device that takes in a gas and increases its pressure by squeezing a volume of it into a smaller volume. ...compressor, A thermostat is a device for maintaining the temperature of a system within a range by controlling the flow of heat energy into or out of the system. ...thermostat, drawers, thaw, Shelf is a detail of furniture for storing items. ...shelves, Rack may refer to any of the following: The rack is a torture device. ...rack (for eggs, bottles,...), Freezers & refrigerators with a freezer compartment have a star rating. ...star rating, In general usage, noise can be considered data without meaning; that is, data that is not being used to transmit a signal, but is simply produced as an unwanted by_product of other activities. ...noise ( The A_weighting curve dB(A) or dBA stands for decibels adjusted. ...dB(A)), Fuzzy logic is a superset of boolean logic dealing with the concept of partial truth. ...fuzzy logic, In metallurgy, stainless steel is defined1 as a ferrous alloy with a minimum of 10. ...stainless steel, Bisque is a fired piece (bisquette) of unglazed clay used to make pottery, figurines, dolls, knickknacks, ornaments etc. ...bisque, A timer is a specialized type of clock. ...timer, Various light_emitting diodes (5 mm reds, 3 mm greens and yellows) A light_emitting diode (LED) is a semiconductor device that emits incoherent monochromatic light when electrically biased in the forward direction. ...LED .

How it works

See A heat pump is a machine, which moves heat from a low temperature reservoir to a higher temperature reservoir under supply of work. ...Heat pump and A phase change heat pump employs a liquid with a low boiling point to transfer heat from cooler space to a warmer space; generally in a refrigeration application. ...Phase change heat pump

External links

• History of the Refrigerator _ Gizmohighway Technology Guide (http://www.gizmohighway.com/history/refrigerator.htm)
• How Refrigerators Work (http://www.repairclinic.com/0088-4-3.asp) Article by RepairClinic
• How Refrigerators Work (http://home.howstuffworks.com/refrigerator.htm) Article by HowStuffWorks
• http://inventors.about.com/library/inventors/blrefrigerator.htm
• [1]  (http://www.subzero.com/subzero/subzhistory.asp) Article by Sub_Zero on the History of the Refrigerator

Freezer is also Official language Japanese Capital Tokyo Largest City Tokyo Emperor Akihito Prime Minister Junichiro Koizumi Area  _ Total  _ % water Ranked 60th 377,835 km² 0. ...Japanese name for Articuno, known as Freezer (フリーザー Furīzā) in Japan, is Pokémon #144 in the National Pokédex, and #299 in the Hoenn Pokédex. ...Articuno, a Pokémon ( Japanese: ポケモン Pokemon, pronounced Poh_Kay_Mon) is a video game franchise, created by Satoshi Tajiri and published by Nintendo for several of their systems, most importantly the Game Boy. ...Pokémon