R417A替代R22用于相变蓄热蒸发型空气源热泵的性能分析
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摘要
针对中国北方冬季气温偏低的特点,设计了相变蓄热蒸发型空气源热泵。相变蓄热蒸发型空气源热泵,利用相变技术,可以有效地解决中国北方低温时的供暖问题。以相变蓄热蒸发型空气源热泵为研究对象,在人工环境模拟室中模拟不同的环境温度,分别使用R417A和R22进行实验。实验数据表明,R417A替代R22时,系统无需更换润滑油,各工况下系统运行稳定,R417A的排气温度和排气压力均低于R22,有利于系统的安全运行。R417A的制热量和COP均小于R22。可见R417A可以替代R22作为相变蓄热蒸发型空气源热泵的制冷剂,但对于新建热泵机组,要达到原有供热效果需要增加蒸发器和冷凝器的换热面积。
For the characteristics of low temperature in winter in northern China,a new air source heat pump( ASHP) system with phase change heat storage evaporator has been developed. The ASHP system with phase change heat storage evaporator,using phase change technology,can effectively solve the heating problem in North China at low temperature. The ASHP system with phase change heat storage evaporator is taken as the research object,and different environment temperature was simulated in the artificial environment simulation room. Experiments were carried out by using R417 A and R22 respectively. The experimental results showed that when R22 was replaced by R417 A,the system didn't need to replace lubricating oil. Under various working conditions,the system ran stably. The exhaust temperature and exhaust pressure of R417 A were all lower than of R22,which were conducive to the safe operation of the system. The heating capacity and COP of R417 A were less than that of R22. Therefore,R417 A can replace R22 as a refrigerant for the ASHP system with phase change heat storage evaporator. However,for new heat pump units,to achieve the original heating effect,it is necessary to increase the heat transfer area of evaporator and condenser.
For the characteristics of low temperature in winter in northern China,a new air source heat pump( ASHP) system with phase change heat storage evaporator has been developed. The ASHP system with phase change heat storage evaporator,using phase change technology,can effectively solve the heating problem in North China at low temperature. The ASHP system with phase change heat storage evaporator is taken as the research object,and different environment temperature was simulated in the artificial environment simulation room. Experiments were carried out by using R417 A and R22 respectively. The experimental results showed that when R22 was replaced by R417 A,the system didn't need to replace lubricating oil. Under various working conditions,the system ran stably. The exhaust temperature and exhaust pressure of R417 A were all lower than of R22,which were conducive to the safe operation of the system. The heating capacity and COP of R417 A were less than that of R22. Therefore,R417 A can replace R22 as a refrigerant for the ASHP system with phase change heat storage evaporator. However,for new heat pump units,to achieve the original heating effect,it is necessary to increase the heat transfer area of evaporator and condenser.
引文
1王芳,范晓伟.我国空气源热泵的技术进展[J].能源工程,2002,18(4):1-5Wang Fang,Fan Xiaowei.The State of art about air-source heat pump in China[J].Energy Engineering,2002,18(4):1-5
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7 李晓燕,闫泽生.R417a在热泵热水系统中替代R22的实验研究[J].制冷学报,2003,24(4):1-4Li Xiaoyan,Yan Zesheng.Experimental study on replacement of R22with R417a in heat pump heating water system[J].Journal of Refrigeration,2003,24(4):1-4
8 李雪,高强,孙平.R417A的应用现状与展望[J].制冷与空调,2007(4):59-61Li Xue,Gao Qiang,Sun Ping.Review and application status of R417A[J].Refrigeration and Air-Conditioning,2007(4):59-61
9 贾荣林,吴静怡.空气源热泵热水器中R417A与R22的性能对比[J].化工学报,2008,59(S2):93-98Jia Ronglin,Wu Jingyi.Comparison of performance between R417A and R22 in air source heat pump water heater[J].Journal of Chemical Industry,2008,59(S2):93-98
10 徐玲玲,沈艳华,梁斌斌,等.Na2SO4·10H2O和Na2HPO4·12 H2O体系相变特性[J].南京工业大学学报,2005,27(4):27-31Xu Lingling,Shen Yuanhua,Liang Binbin,et al.Study on phase transfer characteristics of system Na2SO4·10H2O and Na2HPO4·12 H2O[J].Journal of Nanjing University of Technology,2005,27(4):27-31
11 李永辉,马素霞,谢豪.管翅式相变蓄热器性能的实验研究[J].可再生能源,2014,32(5):574-578Li Yonghui,Ma Suxia,Xie Hao.Experimental study on performance of tube-fin phase change storage[J].Renewable Energy Resources,2014,32(5):574-578
12 马素霞,蒋永明,文博,等.相变蓄热蒸发型空气源热泵性能实验研究[J].太阳能学报,2015,36(3):604-609Ma Suxia,Jiang Yongming,Wen Bo,et al.Experimental study on the performance of the ASHP with phase change heat storage evaporator[J].Acta Energiae Solaris Sinica,2015,36(3):604-609
13 蒋永明,马素霞,文博,等.蓄热蒸发型空气源热泵实验研究[J].暖通空调,2014,44(2):114-118Jiang Yongming,Ma Suxia,Wen Bo,et al.Experimental study on heat storage-evaporator air-source heat pump in low temperature environment[J].Heating Ventilating&Air Conditioning,2014,44(2):114-118
2 柴沁虎,马国远.空气源热泵低温适应性研究的现状[J].能源与环境,2002(5):25-31Chai Qinhu,Ma Guoyuan.State of knowledge and current challenges in the ASHP developed for the cold areas[J].Energy Engineering,2002(5):25-31
3 马最良,杨自强,姚杨,等.空气源热泵冷热水机组在寒冷地区应用的分析[J].暖通空调,2001,31(3):28-31Ma Zuiliang,Yang Ziqiang,Yao Yang,et al.Analysis of using airsource heat pump water chiller-heater units in the cold regions[J].Heating Ventilating&Air Conditioning,2001,31(3):28-31
4 俞丽华,马国远,徐荣保.低温空气源热泵的现状与发展[J].建筑节能,2007,35(3):54-57Yu Lihua,Ma Guoyuan,Xu Rongbao.Current status and development of low temperature air-source heat pump[J].Building Energy Efficiency,2007,35(3):54-57
5 吴学红,翟亚妨,姜文涛,等.套管式相变蓄热器强化传热研究[J].可再生能源,2016,34(7):983-989Wu Xuehong,Zhai Yafang,Jiang Wentao,et al.Heat transfer enhancement for sleeve thermal energy storage exchanger using phase change materials[J].Renewable Energy Resources,2016,34(7):983-989
6 张朝晖,陈敬良,高钰,等.制冷空调行业制冷剂替代进程解析[J].制冷与空调,2015,15(1):1-8Zhang Zhaohui,Chen Jingliang,Gao yu,et al.Progress of refrigerant substitution in R&AC industry[J].Refrigeration and Air-Conditioning,2015,15(1):1-8
7 李晓燕,闫泽生.R417a在热泵热水系统中替代R22的实验研究[J].制冷学报,2003,24(4):1-4Li Xiaoyan,Yan Zesheng.Experimental study on replacement of R22with R417a in heat pump heating water system[J].Journal of Refrigeration,2003,24(4):1-4
8 李雪,高强,孙平.R417A的应用现状与展望[J].制冷与空调,2007(4):59-61Li Xue,Gao Qiang,Sun Ping.Review and application status of R417A[J].Refrigeration and Air-Conditioning,2007(4):59-61
9 贾荣林,吴静怡.空气源热泵热水器中R417A与R22的性能对比[J].化工学报,2008,59(S2):93-98Jia Ronglin,Wu Jingyi.Comparison of performance between R417A and R22 in air source heat pump water heater[J].Journal of Chemical Industry,2008,59(S2):93-98
10 徐玲玲,沈艳华,梁斌斌,等.Na2SO4·10H2O和Na2HPO4·12 H2O体系相变特性[J].南京工业大学学报,2005,27(4):27-31Xu Lingling,Shen Yuanhua,Liang Binbin,et al.Study on phase transfer characteristics of system Na2SO4·10H2O and Na2HPO4·12 H2O[J].Journal of Nanjing University of Technology,2005,27(4):27-31
11 李永辉,马素霞,谢豪.管翅式相变蓄热器性能的实验研究[J].可再生能源,2014,32(5):574-578Li Yonghui,Ma Suxia,Xie Hao.Experimental study on performance of tube-fin phase change storage[J].Renewable Energy Resources,2014,32(5):574-578
12 马素霞,蒋永明,文博,等.相变蓄热蒸发型空气源热泵性能实验研究[J].太阳能学报,2015,36(3):604-609Ma Suxia,Jiang Yongming,Wen Bo,et al.Experimental study on the performance of the ASHP with phase change heat storage evaporator[J].Acta Energiae Solaris Sinica,2015,36(3):604-609
13 蒋永明,马素霞,文博,等.蓄热蒸发型空气源热泵实验研究[J].暖通空调,2014,44(2):114-118Jiang Yongming,Ma Suxia,Wen Bo,et al.Experimental study on heat storage-evaporator air-source heat pump in low temperature environment[J].Heating Ventilating&Air Conditioning,2014,44(2):114-118