水(地)源热泵空调系统测试及能效影响因素分析
|
摘要
通过对重庆地区已运行1年以上的5个水(地)源热泵空调系统进行的夏季能效测试,分析了各系统的实际节能特性和运行现状,发现各系统在正常运行状况下的节能效果不明显,采用《测评导则》推荐的评价方法,计算得到各系统的节能率很少达到30%以上。根据测试结果和系统设计资料,分析了各系统主机能效和输配能效水平,探究了系统节能效果不理想的原因,并对影响系统节能效果的因素进行了分析。分析得出,系统负荷率、冷却水进水温度和水泵调节性能等因素分别在不同程度上影响了系统的能效水平。
Through the energy efficiency test in summer for five water(ground)-source heat pump systems which have been running for more than one year in Chongqing area,analyses the actual energysaving feature and operation situation of each system.The results of energy saving potential are not perfect.Uses the evaluation method recommended by Assessment guideline to compute energy-saving rate of those systems,the results rarely reach to more than 30%.According to the test results and system design data,analyses the host and transporting energy efficiency levels of each system,and inquiries the reasons for unsatisfactory performance.Furthermore,carries out an analysis for factors affecting system energysaving.The results show that the load rate of the system,inlet temperature of cooling water and adjustment performance of water pump affect the energy efficiency levels of the system to different extents.
Through the energy efficiency test in summer for five water(ground)-source heat pump systems which have been running for more than one year in Chongqing area,analyses the actual energysaving feature and operation situation of each system.The results of energy saving potential are not perfect.Uses the evaluation method recommended by Assessment guideline to compute energy-saving rate of those systems,the results rarely reach to more than 30%.According to the test results and system design data,analyses the host and transporting energy efficiency levels of each system,and inquiries the reasons for unsatisfactory performance.Furthermore,carries out an analysis for factors affecting system energysaving.The results show that the load rate of the system,inlet temperature of cooling water and adjustment performance of water pump affect the energy efficiency levels of the system to different extents.
引文
[1]Desmedt J,Bael J V.Efficiency investigation and energy saving of vertical ground source heat pump[J].Strojarstvo,2010,52(4):405-409
[2]Lim K B,Lee S H,Lee C H.Application of groundheat-source water thermal-storage with a heat-pump cooling and heating system[C]∥Proceedings of the Institution of Mechanical Engineers,Part E:Journal of Process Mechanical Engineering,2010,224(E1):73-78
[3]胡平放,於仲义,孙启明,等.地埋管地源热泵系统冬季运行试验研究[J].流体机械,2009,37(1):59-63
[4]成恒生,龚伟申,刘向龙.地源热泵系统在华东地区的应用研究[J].湖南大学学报:自然科学版,2009,36(12):27-30
[5]黄忠,刘宪英,霍建辉,等.重庆某江水源热泵空调工程[J].暖通空调,2008,38(2):101-105
[6]崔文智,姜宝石,项勇.水源热泵机组的节能效果[J].暖通空调,2012,42(2):92-94
[7]白雪莲,张言军,王厚华.地表水水源热泵水输配系统的能效分析[J].土木建筑与环境工程,2010,32(6):86-91
[8]丁勇,李百战.重庆地区地源热泵系统技术应用[M].重庆:重庆大学出版社,2012:80,85-101
[9]中国建筑科学研究院.可再生能源建筑应用示范项目测评导则[S].北京,2008:35-36
[10]陈晓,肖双江.输送能耗对地源热泵系统节能率的影响分析[J].流体机械,2011,39(8):78-81
[11]中国气象局气象信息中心气象资料室,清华大学建筑技术科学系.中国建筑热环境分析专用气象数据集[M].北京:中国建筑工业出版社,2005
[12]苏芬仙,田胜元,张从军.温湿度及辐射频数建筑能耗简化分析方法[J].暖通空调,2003,33(6):16-19
[13]胡磊.地源热泵系统岩土热响应试验及能效测评[D].重庆:重庆大学,2011:61-76
[14]蔡增基,龙天渝.流体力学泵与风机[M].北京:中国建筑工业出版社,1999:310
[2]Lim K B,Lee S H,Lee C H.Application of groundheat-source water thermal-storage with a heat-pump cooling and heating system[C]∥Proceedings of the Institution of Mechanical Engineers,Part E:Journal of Process Mechanical Engineering,2010,224(E1):73-78
[3]胡平放,於仲义,孙启明,等.地埋管地源热泵系统冬季运行试验研究[J].流体机械,2009,37(1):59-63
[4]成恒生,龚伟申,刘向龙.地源热泵系统在华东地区的应用研究[J].湖南大学学报:自然科学版,2009,36(12):27-30
[5]黄忠,刘宪英,霍建辉,等.重庆某江水源热泵空调工程[J].暖通空调,2008,38(2):101-105
[6]崔文智,姜宝石,项勇.水源热泵机组的节能效果[J].暖通空调,2012,42(2):92-94
[7]白雪莲,张言军,王厚华.地表水水源热泵水输配系统的能效分析[J].土木建筑与环境工程,2010,32(6):86-91
[8]丁勇,李百战.重庆地区地源热泵系统技术应用[M].重庆:重庆大学出版社,2012:80,85-101
[9]中国建筑科学研究院.可再生能源建筑应用示范项目测评导则[S].北京,2008:35-36
[10]陈晓,肖双江.输送能耗对地源热泵系统节能率的影响分析[J].流体机械,2011,39(8):78-81
[11]中国气象局气象信息中心气象资料室,清华大学建筑技术科学系.中国建筑热环境分析专用气象数据集[M].北京:中国建筑工业出版社,2005
[12]苏芬仙,田胜元,张从军.温湿度及辐射频数建筑能耗简化分析方法[J].暖通空调,2003,33(6):16-19
[13]胡磊.地源热泵系统岩土热响应试验及能效测评[D].重庆:重庆大学,2011:61-76
[14]蔡增基,龙天渝.流体力学泵与风机[M].北京:中国建筑工业出版社,1999:310