| 土壤源跨临界CO2循环热泵系统供暖的实验研究 |
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| 引用本文： | 林钰淞,姜培学,张富珍,祝银海.土壤源跨临界CO2循环热泵系统供暖的实验研究[J].工程热物理学报,2011(11):1829-1832. |
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| 作者姓名： | 林钰淞 姜培学 张富珍 祝银海 |
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| 作者单位： | 热科学与动力工程教育部重点实验室清华大学热能工程系; |
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| 基金项目： | 国家重点基础研究发展规划(973)资助项目(No.2010CB227305) |
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| 摘 要： | 对土壤源跨临界CO2热泵供暖系统进行了实验研究。研究了热泵系统连续及间歇运行时温度的变化情况，以及膨胀阀开度对系统运行性能的影响。研究表明间歇运行有利于土壤温度的恢复，从而提高蒸发温度；压缩机功率、制热量、气体冷却器出水温度随着排气压力的升高而增大，但COPH的变化是非单调的，在一定的压力范围内出现最大值。
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| 关 键 词： | 热泵 跨临界CO2循环 土壤源 排气压力 |
Experimental Research of Ground-Source Transcritical CO_2 Heat Pump Heating System |
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| LIN Yu-Song JIANG Pei-Xue ZHANG Fu-Zhen ZHU Yin-Hai.Experimental Research of Ground-Source Transcritical CO_2 Heat Pump Heating System[J].Journal of Engineering Thermophysics,2011(11):1829-1832. |
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| Authors: | LIN Yu-Song JIANG Pei-Xue ZHANG Fu-Zhen ZHU Yin-Hai |
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| Institution: | LIN Yu-Song JIANG Pei-Xue ZHANG Fu-Zhen ZHU Yin-Hai (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education. Department of Thermal Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | A ground-source transcritical CO_2 heat pump system for space heating were experimentally investigated.The ground-source temperature variations of continuous or intermittent operation and the influence of the expansion valve opening degree on system COPH(coefficient of performance for heating) were investigated.The result indicated that intermittent operation improved the COPH of system since the evaporation temperature increasing.Compressor power,heating capacity and the outlet temperature at the gas coole... |
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| Keywords: | heat pump transcritical CO_2 cycle ground source compressor discharge pressure |
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