Abstract
From the view point of energy saving and environmental impacts, we have been studying Chemical heat pump (CHP) especially focusing on using calcium systems. The CaSO_4/Caso_4 1/2H_2O gas-solid reversible reaction is used to store at around 393K and release hot/cold heat. In this paper, we studied the energy efficiencies of CaSO_4 CHPs could be used for commercial for wider operating temperature ranges in appropriate heat source conditions.
