Author： Rao Nanxia Zhu Da-Ming
Publisher： Taylor & Francis Ltd
ISSN： 0892-7022
Source： Molecular Simulation, Vol.30, Iss.2-3, 2004-02, pp. : 183-188
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Abstract
Heat transfer properties of premelted ice in silica powders were studied in a temperature range slightly below 0°C. The thermal conductivity of the ice was found to be much smaller than that of bulk ice. A drop in the thermal conductivity is observed at the melting, similar to bulk behavior, but the magnitude of the drop is much smaller than that found in the bulk phase. The heat transfer rate versus temperature gradient of ice in silica powders was found to deviate slightly from a perfectly linear behavior. The deviation could be due to a disruption of homogeneity of the powder media, due to a thermomolecular pressure. Such an effect needs to be further confirmed by future experiments.
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