Crystallization Characteristics of Flon Gas Hydrates Used as Cool Storage Materials

Abstract

Crystallization tests of the hydrates of flon-12, flon-11 and flon-21 were carried out.
The degree of supercooling (the difference between the critical decomposition temperature and the crystallization temperature of the gas hydrate) was decreased with decreasing aging temperature at which the flon-water mixtures were kept with agitation for a given period before cooling. The aging period did not affect the degree of supercooling. The agitation rate seemed to have no effect on it. The relationship between the degree of supercooling and the aging temperature was determined.