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2. Auto-defrost - Wikipedia

   en.wikipedia.org/wiki/Auto-defrost

   While this technique was originally applied to the refrigerator compartment, it was later used for freezer compartment as well. A combined refrigerator/freezer which applies self-defrosting to the refrigerator compartment only is usually called "partial frost free" or semi-automatic defrost (some brands call these "Auto Defrost" while Frigidaire referred to their semi-automatic models as ...

3. Refrigerator - Wikipedia

   en.wikipedia.org/wiki/Refrigerator

   Food in a refrigerator with its door open. A refrigerator, commonly fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]

4. Frigidaire - Wikipedia

   en.wikipedia.org/wiki/Frigidaire

   Frigidaire Appliance Company is the American consumer and commercial home appliances brand subsidiary of multinational company Electrolux, [1][2][3][4] a Swedish multinational home appliance manufacturer, headquartered in Stockholm. Frigidaire was founded as the Guardian Frigerator Company in Fort Wayne, Indiana, and developed the first self ...

5. Pulse tube refrigerator - Wikipedia

   en.wikipedia.org/wiki/Pulse_tube_refrigerator

   Figure 1: Schematic drawing of a Stirling-type single-orifice PTR. From left to right: a compressor, a heat exchanger (X 1), a regenerator, a heat exchanger (X 2), a tube (often called the pulse tube), a heat exchanger (X 3), a flow resistance (orifice), and a buffer volume.

6. Direct cool - Wikipedia

   en.wikipedia.org/wiki/Direct_cool

   Direct cool. Direct cool is one of the two major types of techniques used in domestic refrigerators, the other being the "frost-free" type. Direct-cool refrigerators produce the cooling effect by a natural convection process from cooled surfaces in the insulated compartment that is being cooled. Water vapor that contacts the cooled surface freezes.

7. Einstein refrigerator - Wikipedia

   en.wikipedia.org/wiki/Einstein_refrigerator

   The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd , who patented it in the U.S. on November 11, 1930 ( U.S. patent 1,781,541 ).