FORMATION OF GAS HYDRATE OR ICE BY DIRECT-CONTACT EVAPORATION OF CFC ALTERNATIVES

被引：31

作者：

ISOBE, F ^{[1
]}

MORI, YH ^{[1
]}

机构：

[1] KEIO UNIV,DEPT MECH ENGN,3-14-1 HIYOSHI,KOHOKU KU,YOKOHAMA,KANAGAWA 223,JAPAN

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1992年 / 15卷 / 03期

关键词：

COOL STORAGE; GAS HYDRATE; CFC ALTERNATIVES;

D O I：

10.1016/0140-7007(92)90003-D

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experiments have been made on cool storage by evaporation of HFC-134a (CH2FCF3) or HCFC-123 (CHCl2CF3) brought into direct contact with water in a crystallizer, which was incorporated into a vapour-compression refrigerator loop. The degree of supercooling before the inception of gas-hydrate formation with HFC-134a was found to be reduced by the addition of powdery alumina or zinc or the addition of a surfactant to the water, while the addition of Pseudomonas fluorescens, a strain of ice-nucleating bacteria, showed no effect. The use of HCFC-123 instead of HFC-134a resulted in the formation of slush ice only; no sign of gas-hydrate formation was recognized. The reason for this is considered to lie in the molecular size of HCFC-123.

引用

页码：137 / 142

页数：6

共 16 条

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