| 摘要 |
An energy conversion system employing a heat transducer and a set of heat exchange earth fields. The connection of the fields to the heat transducer is controllably variable. The fields are used to extract or dissipate heat according to whether a heating or cooling effect is desired. The heat gain, or heat loss in the case of cooling, is a function of the geothermal energy of the earth, as modulated by solar radiation.
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