Reaction material and chemical heat pump
AssigneeRicoh Company, Ltd.
InventorsYohei Shiren, Masahiro Masuzawa, Hiroko Ohkura, Yasutomo Aman, Yoshifumi Ohba
Life of this patent
Estimating the term…
Abstract
A reaction material for a chemical heat pump includes type III anhydrous gypsum, a magnesium compound, and CaxMg1-xSO4. The reaction material for the chemical heat pump structurally changes between a compound including type III anhydrous gypsum, the magnesium compound, and CaxMg1-xSO4, and a compound including hemihydrate gypsum, a hydrate of the magnesium compound, and a hydrate of CaxMg1-xSO4 when subjected to heat storage process and heat release process. x is 0<x<1.
Claims10
A reaction material for a chemical heat pump, comprising:
- type III anhydrous gypsum;
- a magnesium compound;
- and
- CaxMg1-xSO4,
- wherein the reaction material for the chemical heat pump structurally changes between a compound including type III anhydrous gypsum, the magnesium compound, and CaxMg1-xSO4, and a compound including hemihydrate gypsum, a hydrate of the magnesium compound, and a hydrate of CaxMg1-xSO4 when subjected to heat storage process and heat release process, and
- x is 0<x<1.
A reaction material for the chemical heat pump comprising an average composition of CayMg1-ySO4 obtained by at least conducting mixing, kneading, and firing of at least calcium sulfate and a magnesium compound, where y is 0.5≦y<1.
A reaction material for a chemical heat pump comprising CaxMg1-xSO4 in which at least one part of calcium site of type III anhydrous gypsum is substituted with magnesium and x is 0<x<1.
Dependencies are inferred from the claim text.