| 摘要 |
PROBLEM TO BE SOLVED: To efficiently operate solar-heat utilizing equipment for heating by securing necessary heating power without being influenced by the quantity of solar radiation nor the outside air temperature. SOLUTION: This solar-heat utilizing equipment is provided with a solar heat collecting panel 24, a blowing means 25, a heat pump circuit 19 having a variable capacity compressor 20. This equipment is also provided with the evaporator 23 of the circuit 19 which makes heat exchange with the air passed through the panel 24 and a control means 32 which changes the capacity of the compressor 20. Therefore, the evaporative temperature of this equipment can be raised significantly by performing necessary adjustment on the heating power of a heat pump correspondingly to the quantity of solar radiation and outside air temperature and, when the supply temperature to the evaporator 23 becomes higher due to a large quantity of solar radiation, by reducing, for example, the number of revolutions of the compressor 20. Consequently, this equipment can be operated efficiently by leaps and bounds by securing the heating power of the heat pump. |
