Solar plant is provided with heat pump, solar collectors, low temperature reservoir and storage, where expansion temperature of refrigerant of heat pump and input temperature of heat carrier adjusted

摘要

The solar plant is provided with a heat pump (W), solar collectors, a low temperature reservoir and a storage (S-p). The expansion temperature of the refrigerant of the heat pump and the input temperature of a heat carrier are adjusted into the collector by alteration of the cross-section or the flow resistance of the expansion valve of the heat pump as function of control quantities to an optimum value.