In this study, the ice slurry producing system, which was introduced in our previous study, was used and the effect of sublimation of ice was investigated. In the system, ethanol solution, as a thermal storage material, is evaporated under low-pressure condition, and the remaining solution is cooled and partially frozen as a consequence of the latent heat of evaporation. In our previous study, it was clarified that the ethanol concentration of vapor phase became lower during the ice producing process of this system, than that under the condition of vapor-liquid equilibrium, in which ice is not generated in the liquid phase. The reason for this is expected to be the effect of the sublimation of ice generated in the liquid phase. In this study, the effect of sublimation of ice on the composition of the vapor phase was investigated. Using the results, the COP and non-dimensional ice production rate of this system was calculated, and the effects of sublimation of ice on them were also evaluated.
