401 低温環境下における着霜現象の分析第1報 : 霜層内拡散(省エネルギー(1),環境保全型エネルギー技術)

概要

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For the improvement of the coefficient of performance of heat exchangers, such as air-conditioners, showcases and unit coolers, under frosting conditions, a clarification of the frost deposition mechanism in a low-temperature environment is necessary. Therefore, frost properties were measured at temperatures below 0°C. The experimental results were compared with the calculation result based on the previous proposed method to predict the diffusion process in the frost layer. The value of tortuosity was fitted to match calculation to experiment and it was found that the tortuosity values were nearly to the Le Gall's proposed method, and the parameter in the Le Gall's equation was fitted in the chilled condition and frozen condition.
社団法人日本機械学会の論文
2008-07-09