Performance Analysis of Ground Heat Source Utilization System Using Heat Pump

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  • ヒートポンプを用いた地中熱利用システムの性能解析に関する研究
  • ヒートポンプ オ モチイタ チチュウ ネツ リヨウ システム ノ セイノウ カイセキ ニ カンスル ケンキュウ

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Abstract

This paper describes a performance analysis of a ground source heat pump (GSHP) with plate-type heat exchangers using ammonia as working fluid. To improve thermal and economical efficiency of GSHP, it is essential to enhance the efficiency of GSHP components (ground heat exchanger pipes, evaporator, condenser, compressor etc.) and to optimize total systems of GSHP. Since the ground heat exchanger pipes occupies high ratio of total initial capital cost, we proposed the optimization method of the length and the number of pipes. The performance analysis presented in this paper make possible optimal design of the length and the number of ground heat exchanger pipes in various conditions.

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