Experimental　results　of　the　gas-hydrate　R141b　cool-storage　process　are　used　to　study　the　performance　of　a　new　type　gas-hydrate　cool-storage　system.　The　relations　among　the　cooling　rate　of　the　cool-storage　medium,　the　degree　of　subcooling　of　crystallization,　the　formation　rate　of　gas-hydrate,　the　cold　energy　stored　and　the　volumetric　flow　rate　in　the　crystallizer　are　provided.　The　experimental　results　indicate　that　the　cool　storage　effect　of　the　system　is　better　when　the　volumetric　flow　rate　in　the　crystallizer　is　between　150　and　450　l/h,　the　corresponding　cooling　rate　of　the　cool-storage　medium　is　between　0.055　and　0.105　degreesC/min,　the　degree　of　subcooling　of　crystallization　is　between　1.97　and　3.50　degreesC,　the　formation　rate　of　the　gas-hydrate　is　between　0.30　and　0.4　g/s,　and　the　cold　energy　stored　is　between　2.9　and　4.0　MJ.　The　results　presented　provide　guidance　for　the　actual　efficient　operation　of　a　new　type　of　gas-hydrate　cool-storage　system.　(C)　2003　Elsevier　Ltd.　All　rights　reserved.