环境温度对空气源热泵供暖性能的影响及优化
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摘要
本文计算分析了环境温度、出水温度和负荷平衡点对严寒地区典型城市(哈尔滨)低温空气源热泵供暖性能的影响及其经济性和节能减排效益。结果表明:相同出水温度下,机组输入功率随环境温度升高而降低,而机组能效与之相反;机组搭配地暖末端形式的年运行费用为30.74元/m~2,且与燃煤锅炉相比,供暖季可节约标准煤14.74 kg/m~2;不同负荷平衡点对热泵供暖系统的能效与经济性具有较大影响,对于所选典型城市哈尔滨而言最佳经济平衡点为-20℃。
This paper calculates and analyzes the influence of different ambient temperature,outlet water temperatures and load balance points on the heating performance of low temperature air source heat pump heating system(ASHPS)in Harbin,a typical city in severe cold region in China,and its application to the city's economy as well as energy-saving and emission reduction benefits.The results show that:at the same outlet water temperature,the total input power of the ASHP at different ambient temperatures decreases with the increase of temperature,while COPof the ASHP is the opposite,during heating season,the annual operating cost of the system using floor heating is 30.74 CNY/m~2,compared with coal-fired boiler,saving standard coal 14.74 kg/m~2.Different load balancing points have a greater impact on the energy efficiency and economy of ASHPS,for Harbin,the best economic balance point is-20℃.
This paper calculates and analyzes the influence of different ambient temperature,outlet water temperatures and load balance points on the heating performance of low temperature air source heat pump heating system(ASHPS)in Harbin,a typical city in severe cold region in China,and its application to the city's economy as well as energy-saving and emission reduction benefits.The results show that:at the same outlet water temperature,the total input power of the ASHP at different ambient temperatures decreases with the increase of temperature,while COPof the ASHP is the opposite,during heating season,the annual operating cost of the system using floor heating is 30.74 CNY/m~2,compared with coal-fired boiler,saving standard coal 14.74 kg/m~2.Different load balancing points have a greater impact on the energy efficiency and economy of ASHPS,for Harbin,the best economic balance point is-20℃.
引文
[1]王沣浩,王志华,郑煜鑫,等.低温环境下空气源热泵的研究现状及展望[J].制冷学报,2013,34(05):47-54.
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[4]XU JIN.Experimental investigation of a novel air source heat pump for cold climate[A].Tianjin University、Dalian University of Technology.The First International Conference on Building Energy and Environment Proceedings[C].Tianjin University、Dalian University of Technology,2008:1563-1569.
[5]王伟,金苏敏,陈建中,等.空气源热泵热水器双级压缩循环研究[J].暖通空调,2006,36(9):58-61.
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[7]王东越,李红旗,邓壮,等.空气源热泵空调系统能耗计算软件开发及应用.2017年全国暖通空调模拟学术年会论文集[C].北京:建筑环境与能源,2017:125-128.
[8]宋芳婷,诸群飞,吴如宏,等.中国建筑热环境分析专用气象数据集[A].中国建筑学会暖通空调分会、中国制冷学会空调热泵专业委员会.全国暖通空调制冷2006学术年会资料集[C].中国建筑学会暖通空调分会、中国制冷学会空调热泵专业委员会,2006:1.
[9]姜益强,姚杨,马最良.空气源热泵冷热水机组供热最佳能量平衡点的研究[J].哈尔滨建筑大学学报,2001(03):83-87.
[10]姜益强,姚杨,马最良.空气源热泵供热最佳经济平衡点的探讨[J].暖通空调,2001(03):39-41.
[11]姜益强,姚杨,马最良.空气源热泵冷热水机组供热最佳平衡点温度的研究[J].热能动力工程,2002(03):261-263+324.
[2]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(03):54-57.
[3]STEFAN S,BERTSCH,ECKHARD A GrOLL.Twostage air-source heat pump for residential heating and cooling applications in northern U.S.climates[J].International Journal of Refrigeration,2008,31(7),1282-1292.
[4]XU JIN.Experimental investigation of a novel air source heat pump for cold climate[A].Tianjin University、Dalian University of Technology.The First International Conference on Building Energy and Environment Proceedings[C].Tianjin University、Dalian University of Technology,2008:1563-1569.
[5]王伟,金苏敏,陈建中,等.空气源热泵热水器双级压缩循环研究[J].暖通空调,2006,36(9):58-61.
[6]陈孚江,张云,姜钦青,等.低温环境下运行参数对两级压缩空气源热泵性能的影响[J].流体机械,2017,45(03):56-60+74.
[7]王东越,李红旗,邓壮,等.空气源热泵空调系统能耗计算软件开发及应用.2017年全国暖通空调模拟学术年会论文集[C].北京:建筑环境与能源,2017:125-128.
[8]宋芳婷,诸群飞,吴如宏,等.中国建筑热环境分析专用气象数据集[A].中国建筑学会暖通空调分会、中国制冷学会空调热泵专业委员会.全国暖通空调制冷2006学术年会资料集[C].中国建筑学会暖通空调分会、中国制冷学会空调热泵专业委员会,2006:1.
[9]姜益强,姚杨,马最良.空气源热泵冷热水机组供热最佳能量平衡点的研究[J].哈尔滨建筑大学学报,2001(03):83-87.
[10]姜益强,姚杨,马最良.空气源热泵供热最佳经济平衡点的探讨[J].暖通空调,2001(03):39-41.
[11]姜益强,姚杨,马最良.空气源热泵冷热水机组供热最佳平衡点温度的研究[J].热能动力工程,2002(03):261-263+324.