摘要
以辽宁省沈阳市一栋建筑为例,采用DEST软件构建该建筑的模型,对无霜空气源热泵系统进行研究,分别在冬季、夏季对空调系统的空气源热泵系统性能进行了测试。测试结果表明,冬季,户外空气湿度、溶液质量分数对系统的供热性能影响不大,伴随户外空气干球温度、供热水流量、溶液流量、户外空气流量等参数变大与供热水温度降低,系统供热性能高达3.12,但伴随溶液流量、空气流量等参数变大与溶液温度降低,系统再生性能COP高达4.04;夏季,系统在湿度小、冷却水流速高、冷冻水流速高时性能显著,COP的增幅高达0.24,增大户外空气流量对系统性能影响较小。试验结果显示,冬季时,无霜空气源热泵系统在低温高湿区域的应用最佳。
Taking a building in Shenyang,Liaoning Province as an example,a model of the building is built by DEST software.Frost free air source heat pump system is studied in the building model,and the performance of air source heat pump system is tested in winter and summer.The test results show that:in winter,outdoor air humidity and solution mass fraction have little influence on heating performance of the system.With the increase of outdoor air dry bulb temperature,heating water flow,solution flow,outdoor air flow and the decrease of heating water temperature,the heating performance of the system reaches 3.12,but with the increase of solution flow,air flow and other parameters and the decrease of solution temperature,and the cop of system is as high as 4.04.In summer,when the humidity is small,the cooling water speed is high and the freezing water speed is high,the cop increases by as much as 0.24,and the increase of outdoor air flow has little effect on system performance.The results show that:in winter,frost free air source heat pump system is the best in low temperature and high humidity area.
作者
张伟东
王华强
梁欣
Zhang Weidong;Wang Huaqiang;Liang Xin(Zhengzhou University Comprehensive Design and Research Institute Co.,Ltd.,Zhengzhou 450000,China;Zhengzhou Architectural Design Institute,Zhengzhou 450000,China;Urban & Rural Construction and Designing Institute of Henan Province Co.,Ltd.,Zhengzhou 450000,China)
出处
《能源与环保》
2022年第4期147-153,共7页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
河南省科技攻关项目(152102310073)。
关键词
DEST
空调系统
空气源
热泵系统
数值模拟
DEST
air conditioning system
air source
heat pump system
numerical simulation
作者简介
张伟东(1969—),男,河南南阳人,高级工程师,1992年毕业于同济大学,现从事暖通、给水排水、水处理工作。
