| 摘要 |
The present invention is a geothermal heat exchanger with a first exchanger, being a return loop inside a geothermal well. The first exchanger is provided for circulating a refrigerant for harvesting heat from the ground surrounding the geothermal well by conduction and convection. A second exchanger, also placed within the geothermal well, is formed from material with high heat transfer coefficient, and also adapted to harvest heat from the ground surrounding the geothermal well by conduction and convection. The first exchanger is completely encased within the second exchanger, and the second exchanger is placed in direct contact with ground surrounding the geothermal well. The outer walls of the first exchanger abut inner walls of the second exchanger along an entire length of the second exchanger. The first exchanger is a copper pipe, and the second exchanger is a housing made of non-ferrous metal with a high thermal diffusivity. |
