| 摘要 |
<p>Heat pump apparatus for heating a controlled environment such as a glasshouse has two inlets (123, 137) for damp air from the environment (100). An evaporator (107) abstracts heat from a mixture and ambient air and damp air from one inlet (123) and supplies this to the damp air from the second inlet (137) prior to its recirculation to the environment. The compressor (105) of the heat pump together with a fossil-fueled engine are mounted in the air flow with the cooling of the engine providing further heat to the output heated air.</p> |
