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Directory:Refrigeration

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Directory of technologies and resources related to refrigeration using clean energy methods.

Technologies

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Directory:Home Generation:Air Conditioning > Directory:Refrigeration > Using Heat to Cool Buildings - It could soon be more practical to cool buildings using solar water heaters and waste heat from generators. That's because of new porous materials developed by researchers from the Pacific Northwest National Laboratory. These materials can improve a process called adsorption chilling, which can be used for refrigeration and air conditioning. (MIT Technology Review April 1, 2011)
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Directory:Refrigeration / Directory:Magnetism > The future of refrigeration could be magnetic - Scientists at U.C. Berkeley are seeking to utilize the magnetocaloric effect in which a changing magnetic field within a material causes it to get colder, in order to create a magnet-based refrigerator. Not only would it use less power and run quieter than your current fridge, but it also wouldn’t contain any hydrofluorocarbons, gases which can add tremendously to the greenhouse effect if not properly disposed of. (GizMag July 5, 2010)
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Directory:Refrigeration > Zero-Energy Bio Refrigerator Cools Your Food With Future Gel - Russian designer Yuriy Dmitriev has unveiled the Bio Robot Refrigerator that utilizes a special gel-like substance that suspends and cools food once inserted, with no motor. To use the fridge you basically shove food into it’s biopolymer gel — which has no odor and is not sticky — and it is suspended and cooled until you need it again. (Inhabitat June 15, 2010)
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Latest: Directory:Refrigeration / Directory:Capillary Action Engines > NEW: Directory:University of Rochester:Laser-etching surfaces for capillary action Laser-etched silicon draws fluid upward – ideal for evaporative cooling, not for perpetual motion - Researches at the University of Rochester have devised a process in which a special high-power laser etching on the surface of silicon makes liquid flow vertically upward along the silicon surface, overcoming the pull of gravity, without pumps or other mechanical devices. (PESN March 18, 2010) (Comments)
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A compressor-free refrigerator - Engineers at Penn State have developed a new method of running a refrigerator that doesn't require a compressor. Rather, it changes the level of organization in a solid to change the temperature. This change in entropy results in heat-transfer. (Slashdot Commentary) (Pure Pedantry August 12, 2008)

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Directory:Abba Pot-in-Pot Cooling System - Nigerian inventor, Mohammed Bah Abba's award-winning, simple-to-implement invention of and evaporative cooler, consisting of one pot inside another, with wet river sand in between and a damp cloth on top. When kept in a dry, well-ventilated, and shady location, water evaporates, cooling the inner container.

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There was an error working with the wiki: Code[1] - The "Stove for Cooking, Refrigeration and Electricity," or SCORE, could help improve the health and quality of life for the two billion or so people in the world who cook over open fires. The SCORE thermoacoustics technology promoted by a multi-institutional project converts heated gas into sound waves which can be used to cook, cool, and/or generate electricity.

Research and Development

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Latest: Directory:Storage > Directory:Utility Scale Batteries / Directory:Refrigeration > Directory:Isentropic Gravel Batteries for Renewable Grid Storage - Using two large tanks of gravel, argon gas, and a special heat pump design, the British company, Isentropic, uses the temperature difference between the tanks as an inexpensive energy storage and retrieval mechansim. Applicactions also include heating/cooling as well as solar generation. (PESWiki Apr. 28, 2010)
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Promethean Solar Refrigerator - Promethean Power Systems is developing a clean, quiet, solid-state solar-powered refrigeration system for commercial cold-storage applications in off-grid and partially electrified areas of developing countries, using thermoelectric cooling modules and solar photovoltaic (PV) panels. (Video Series link) (Engineering TV Jan. 6, 2009)

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$25 Fridge Powered By Cooking Fire - The 8-pound prototype zero-emission fridge doesn't need gas, propane or kerosene and is powered by regular fire. TED Video (EcoGeek Dec. 12, 2008)

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A Plastic That Chills - Thin films of a new polymer developed at Penn State change temperature in response to changing electric fields. Qiming Zhang, an electrical-engineering professor at Penn State, who reported the new material in Science last week, say that it could lead to new technologies for cooling computer chips and to environmentally friendly refrigerators.(MIT Technology Review August 11, 2008)

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RPE -Geometrical trajectory path replica of gases is a new discovery in thermodynamics which helps gases make themselves cold(up to 110 degree Celsius drop down in temperature) depend on pressure of gas. This new technology successfully tested on dry air.

See also

Directory:Home Generation:Air Conditioning

Directory:Home Generation:Refrigerators

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Directory:Maisotsenko M-Cycle Coolerado

Directory:Evaporative Cooling - Directory of technologies and methods of using evaporative cooling for non-electric refrigeration.

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