Chemical Heat Pumps Using Hydrogen

Abstract

Chemical heat pumps are processes which utilize the exo- and endothermic chemical reactions to store the industrial waste heat or the natural heat such as solar energy and to upgrade these heat by raising temperature or reducing it below the room temperature. The processes are useful because they enable us to use energy with high efficiency, to control working temperature easily and to store and transport energy in form of stable chemical substances without energy loss. This report includes principles and recent topics on research and development of chemical heat pumps using hydrogen.