基于Trnsys的村镇建筑太阳能和地源热泵复合供热系统仿真优化  

Simulation and optimization of solar and ground source heat pump combined heating system for rural buildings based on Trnsys

作　　者：陈晨[1] 孙雅辉 李以通[1] 魏慧娇[1] 崔维玮[1] CHEN Chen;SUN Ya-hui;LI Yi-tong;WEI Hui-jiao;CUI Wei-wei

机构地区：[1]中国建筑科学研究院天津分院,天津300384

出　　处：《节能》2023年第3期1-6,共6页Energy Conservation

基　　金：国家重点研发计划课题“村镇建筑用能系统整合与能效提升技术研究”(项目编号:2018YFD1100705)。

摘　　要：以鹤壁市某村镇建筑为研究对象,利用Trnsys软件构建建筑供热系统模型,以系统制热性能系数COP_(SYS)为评价指标,比较太阳能与地源热泵复合供热系统运行情况。结果表明:基于计算太阳辐射量条件下,复合供热系统的平均COP_(SYS)在供热温度45℃和40℃下均比单独热泵系统COP_(SYS)高出1倍。随着太阳能供热模式切换温度T_(set1)升高,复合供热系统的COP_(SYS)均值下降,地源热泵供热+太阳能蓄热模式切换温度T_(set2)的变化对复合系统的COP_(SYS)影响不大。复合供热系统在初寒期、严寒期和末寒期的最优COP_(SYS)分别为7.21、5.39和8.57。Taking a village and town building in Hebi City as the heating object,the building heating system model was established by using Trnsys software.Taking the heating performance coefficient(COP_(SYS))as the evaluation index,the operation of solar energy and ground source heat pump combined heating system was compared.The results show that based on the solar radiation the average COP_(SYS) of the composite system was twice that of the single system at 45℃and 40℃.When the solar heating mode switching temperature T_(set1) increases,the average COP_(SYS) of the composite system decreases,while the change of ground source heat pump heating and solar heat storage mode switching temperature T_(set2) has little effect on the COP_(SYS) of the composite system.The optimal COP_(SYS) of compound heating system in the initial cooling period,severe cold period and final cooling period were 7.21,5.39 and 8.57,respectively.

关 键 词：村镇建筑 复合供热系统 系统性能系数 供热系统仿真 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]