HEAT ABSORPTION IN REFRIGERATING OR HEAT-PUMP SYSTEM

摘要

PURPOSE:To realize a system having a heat source with wider temperature range than usual by receiving solar heat through fresh water layer on liquid refrigerant layer in order to turn the liquid refrigerant layer into a heat source during the daytime and by utilizing the latent heat of freezing as a heat source during the night time and the like by a method wherein fresh water and liquid refrigerant are laminatedly stored in such a manner that the former occupies the upper portion and the latter occupies the lower portion of a solar pond by utilizing the specific gravity difference between the fresh water and the liquid refrigerant, which is introduced in the evaporation section of a heat pump as a heat source to be absorbed. CONSTITUTION:Refrigerant gas compressed by a compressor 1 is past through a discharge pipe 2 and introduced in a condenser 3 in order to be liquefied and, after that, evaporated at an evaporator 25. Brine is circulated by means of a pump 14 through liquid pipes 13 and 15 between the storage part 19 arranged at the bottom of a solar pond 16 serving as a liquid storage part and the evaporator 25. The layer of brine 18 and the layer of fresh water 17 are formed in the solar pond 16 in such a manner that the former occupies the lower portion and the latter occupies the upper portion in the pond 16 due to the specific gravity difference between the brine 18 and the fresh water 17. The solar heat transmits the layer of fresh water 17 and heats the layer of brine 18. The heat transferred in the brine is absorbed at the evaporator 25. When a system is operated so as to bring the brine below 0 deg.C, frozen layers 29 are developed out of the fresh water and the latent heat generated at the development of the frozen layers 29 is absorbed at the evaporator 25.