MadSci Network
Msn: How Does an Air Conditioner or Refrigerator Work?
From the Mad Scientist Network. Using a question and answer format, this page explains the answer to the question "How does An air conditioner or refrigerator work?" The scientific principles which underly their operation and the process...
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Warm Air: Central Air Conditioning
The operation of conventional air conditioners are described. Their parts and the refrigerant/heat exchange cycle is discussed. The use of alternative geothermal systems are explained.
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Warmair.com: Refrigeration Cycle
The expansion-compression-condensation cycle of a refrigerator is discussed and explained. Understandable language but no graphics.
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Warm Air: Solar Heating
Solar heating systems and their operation are described, and their benefits, both economic and environmental are discussed in detail.