摘要
以石家庄农村地区典型的户用分体式地源热泵系统为对象,进行了全年运行性能模拟与分析。结果表明,分体式地源热泵能够满足农村地区住户的冬季采暖与夏季供冷需求,运行较为稳定,COP较高,不存在冬季除霜问题。当冬、夏季室温分别设置为16~18℃和26~27℃条件下,分体式地源热泵系统的耗电量分别为37.4~47.1kWh/m^2和15.7~19.3kWh/m^2,单位面积电费分别为11.2~14.1元/m^2和8.6~10.6元/m^2,具有较好的节能性和经济性。由于农村住户的冬季采暖需求明显高于夏季供冷需求,分体式地源热泵系统长期运行过程中可能会出现地温逐年下降的趋势,必要时需采取一定的运行调控措施。适当改善建筑围护结构性能,有助于降低建筑冷热负荷,进一步提高系统的运行经济性。
Taking a typical separated household ground source heat pump system (SH-GHSP) in rural areas of Shijiazhuang as an example,the annual operation performance has been simulated and analyzed.Results show that SH-GHSP can satisfy the requirements of rural buildings for heating in winter and cooling in summer with high stability and high COP and without defrosting problem.When the indoor air temperature is set 16-18℃in winter and 26-27℃in summer,the electricity consumptions range from 37.4 to 47.1 kWh/m^2 and 15.7 to 19.3 kWh/m^2,and the costs of electricity range from 11.2 to 14.1 yuan/m^2 and 8.6 to 10.6 yuan/m^2,which has a promising energy saving potential and economic benefits.With a large requirement of rural buildings for space heating in winter than cooling in summer,there may show a decaying tendency of the ground temperature during the long-term operation of SH-GHSP.If necessary,appropriate operational control measures should be considered.If the envelope of rural buildings is improved properly,the heating and cooling load of buildings and the operation cost of SH-GHSP might be further reduced.
作者
白云鹏
王华军
王国良
赵海朝
BAI Yunpeng;WANG Huajun;WANG Guoliang;ZHAO Haichao(School of Energy and Environment Engineering,Hebei University of Technology,Tianjin 300401,China;Hebei Bernard Energy Science and Technology Co Ltd,Shijiazhuang,Hebei 052260,China)
出处
《河北工业大学学报》
CAS
2019年第6期93-98,共6页
Journal of Hebei University of Technology
关键词
分体式地源热泵
运行性能
TRNSYS模拟
能耗
separated ground source heat pump
operation performance
TRNSYS simulation
energy consumption
