太陽熱利用ヒートポンプシステムの研究 : 第1報,異種の直膨形太陽集熱器を並列に用いたヒートポンプ

概要

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It was shown experimentally that the thermal performance of a heat pump system with a collector (evaporator) which had high convective heat transfer coefficient was not bad even when the solar incident radiation became small. However, with this collector the solar radiation increased the coefficient of performance (COP) little. On the other hand, with a collector which had a low convective heat transfer coefficient, the COP was very high when the solar radiation was available and was very low when it was not available. Thus, each collector had an advantage and disadvantage depending on the weather conditions. It was considered to use these two different types of collectors arranged in a row in the heat pump system. As a result, the weak point of each collector was covered by the other collector resulting in a good performance.
一般社団法人日本機械学会の論文
1988-06-25