| 摘要 |
The solar heating system comprises at least one solar collector 1 and at least one heatable device 2. A fluid transport loop conveys a fluid from the solar collector(s) to the heatable device(s) by a supply conduit 3, and back again by a return conduit 4. A first 8 and second 6 heat exchanger are in thermal communication with the supply and return conduit respectively. The first and second heat exchangers are linked via a heat pump 9 so as to facilitate extraction of thermal energy from the fluid at the second heat exchanger and reintroduction of thermal energy to the fluid at the first heat exchanger. The heatable device(s) may comprise a hot water tank or a central heating radiator (2, figure 1), or alternatively a turbine or heat engine 11 that provides power to the heat pump. Use of the heat pump increases the thermal efficiency of the system since the fluid is very cold when returning to the solar collector(s) and very hot when entering the heatable device(s). |
