초록

A heat storage system comprises a phase change medium and a nucleating agent. The phase change medium is prepared by mixing a gest molecule and water if necessary, with a gelating agent, an emulsifier and/or a furan compound. The nucleating agent is filled in a capillary or a porous substrate.

대표청구항 ▼

In a heat storage system comprising a phase change medium which results in a phase conversion at a specific temperature and a nucleating agent for initiating a crystallization of said phase change medium, an improvement characterized in that a gas and water are present in contact with each other in

In a heat storage system comprising a phase change medium which results in a phase conversion at a specific temperature and a nucleating agent for initiating a crystallization of said phase change medium, an improvement characterized in that a gas and water are present in contact with each other in the system in amount to form as the phase change medium a gas hydrate having a dodecahedron structure as the basic crystal structure and a clathrate for water which has a dodecahedron structure different from that of said gas hydrate is present as said nucleating agent, wherein said gas hydrate is a hydrate of ethyl chloride, trichlorofluoromethane, dichlorofluoromethane, tetrahydrofuran or trimethylamine or a mixture thereof and said nucleating agent is a hydrate of tetrabutylammonium salt or tetraisomylammonium salt, said nucleating agent being present in amount effective for initiating crystallization of the gas hydrate.