抄録
The purpose of this research is to improve the performance of the chemical thermal storage method using Na \2S hydration and dehydration. For the purpose, comparing method of using Na_2S particles and of porous soaked with liquid Na_2S hydration (composite method). Particle material and composite material are dehydrated and hydrated in a chamber under the low pressure. Inside temperature of materials, reaction velocity, and reaction rate, etc. are obtained as an experimental result while both reactions are operated until they converge. As a result, we confirmed that the reaction velocity of a composite material is quicker than that of a particle sample. Thereby, the predominance of composite method was shown.
