20 May '12, 7am

Solar Thermal: Pros and Cons – Part 1: Solar Heating and Cooling: This series will explore the pros and cons of

, though it sounds like an oxymoron, is actually quite real and can be very practical. It is based on the absorption cycle, the same principle that drove some of the earliest refrigerators and is still used in the propane refrigerators that are found in many RVs and trailers. Essentially, they use heat to compress the refrigerant in a fixed volume instead of a mechanical compressor. The rest of the cycle is basically the same; the cooling is produced as the compressed liquid as is expanded in the evaporator. (Think of how cold spray deodorant feels coming out of an aerosol can.) The great thing about solar cooling is that the energy is always available when you need it the most, when the sun is out. Most of these systems today are still complex and expensive so that they only make sense at a commercial scale.

Full article: http://www.triplepundit.com/2012/05/solar-thermal-pros-co...

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Solar Thermal: Pros and Cons – Part 1: Solar He...

triplepundit.com 18 May '12, 9am

, though it sounds like an oxymoron, is actually quite real and can be very practical. It is based on the absorption cycle...

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