Geothermal Energy and Narrow Streets Subtitle: Photos from a visit to São Miguel Island in the Azores Images: Everybody seems to love geothermal energyHot water or steam extracted from reservoirs beneath the Earths surface; can be used for heat pumps, water heating, or electricity generation. The term may also mean the use of near-constant underground temperatures by ground-source heat pumps to provide heating and cooling.. Thats why many American homeowners brag that they heat they house with renewable energy, saying, “Ive got a geothermal system that extracts heat from the soil in my backyard.” Well, Im sorry to disappoint you, but youve been misinformed. You dont have a geothermal system. All you have is a heat pumpHeating and cooling system in which specialized refrigerant fluid in a sealed system is alternately evaporated and condensed, changing its state from liquid to vapor by altering its pressure; this phase change allows heat to be transferred into or out of the house. See air-source heat pump and ground-source heat pump. that runs on electricity. Just because the heat-pump salesman told you that it’s a geothermal system, doesnt mean it is. read more
Posted on: Fri, 22 Aug 2014 08:34:40 +0000
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