Abstract
The thermal properties, the flow and cold heat-storage characteristics of the O/W-type emulsion were reported in the first and the second report, respectively. This paper deals with cold heat-release characteristics of the oil (tetradecane, C14H30, freezing point 278.9K)/water emulsion as a latent heat-storage material having a low melting point. An air-emulsion direct contact heat exchange method was selected for the cold heat-release from the solidified emulsion layer. The temperature effectiveness, the sensible heat release time and the latent heat release time were measured as experimental parameters. The useful nondimensional correlation equations for those parameters were derived in terms of nondimensional emulsion level expressed the emulsion layer dimensions, Reynolds number for air flow, Stefan number and heat capacity ratio.
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