Although the ground loop that exchanges heat with the earth is the distinctive feature that gives this technology its name, it is the interior heat pump units that transfer heat between the ground loop and the conditioned spaces of a building. The first section on this page explains the basic principles underlying the mechanics of heat pump operation. To show how these principles can be applied to move heat from one place to another, the next section reviews different heat pump types, beginning with an explanation of how a refrigerator works and ending with a description of geothermal heat pump units and their unique features. The last section describes different alternatives for adding a domestic water heating loop to a geothermal heat pump system.
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جمعه, 10 آبان 1387 14:29
geo4va.vt.edu
Although the ground loop that exchanges heat with the earth is the distinctive feature that gives this technology its name, it is the interior heat pump units that transfer heat between the ground loop and the conditioned spaces of a building. The first section on this page explains the basic principles underlying the mechanics of heat pump operation. To show how these principles can be applied to move heat from one place to another, the next section reviews different heat pump types, beginning with an explanation of how a refrigerator works and ending with a description of geothermal heat pump units and their unique features. The last section describes different alternatives for adding a domestic water heating loop to a geothermal heat pump system.
ادامه مطلب ...
جمعه, 10 آبان 1387 14:28
geo4va.vt.edu
A heat pump is a device that uses mechanical energy to pump heat “up the temperature scale” from a cooler region to a warmer one. It does so by changing the pressure of a working fluid called a refrigerant. Commonly used refrigerants are distinguished by the fact that over a relatively moderate range of elevated pressures, they vaporize and condense at temperatures that can drive spontaneous heat flow in the direction needed to preserve food, chill water, or maintain interior building comfort. This is illustrated for several different types of heat pump described below.
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