地源热泵用R22及替代工质热力性能研究

STUDY ON THE PERFORMANCE OF A GROUND SOURCE HEAT PUMP USING R22 AND ITS SUBSTITUTES

采用CSD方程 ,针对地源热泵的供暖和空调两种运行工况 ,对R2 2及替代工质的系统循环热力性能进行计算 ,分析和检验R2 2某些替代工质是否适应于地源热泵 。

Ground surface heat pump (GSHP) is used for space heating and refrigeration by applying the low enthalpy heat absorbed from solar energy and geothermal energy, which are stored in the shallow soil layer, groundwater, river or lake. The performance of a GSHP using R22 (a medium which will be sifted out soon) and its substitutes in heating mode and cooling mode was calculated and analyzed by CSD equation. The results show that R22 and its substitutes are suitable for GSHP. The optimum media were recommended as well.