太陽熱利用ヒートポンプシステムの研究 : 第2報, 直膨集熱式平板形集熱器を用いたシステムの性能

概要

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The thermal performance of the heat pump systems which use bare flat-plate collectors was studied experimentally and analytically. The collector used in the experiments was made of copper plate 1mm thick with copper tubes fixed on the back. The total area of the collectors was 3.24m^2 and the rated capacity of the compressor in the system was 350W. A COP of about 5.3 was obtained at noon in winter when the temperature of the water at the inlet of the condenser was 40℃. Based on the experimental results, the COP and the power consumption of the compressor were given as functions of the temperature of the water and the evaporation temperature of the refrigerant, R-12, in the collectors. Using these relations, an analysis was made which was able to predict the performance of the system for various weather conditions and for an arbitrary water temperature. The analytical results of the evaporation temperatures and the COP were in good agreement with those in the experiments.
一般社団法人日本機械学会の論文
1996-12-25