摘要
空气源热泵结霜过程会恶化机组的实际运行性能,重霜工况下尤为严重,发展抑霜型空气源热泵是保障其高效适用和良性发展的关键。本文依托四川省康定市的某住宅示范工程,开展抑霜型空气源热泵和常规型空气源热泵的现场实测研究,研究抑霜型空气源热泵实际应用中的抑霜、制热性能表现,并进行技术经济性分析。结果表明:抑霜型空气源热泵抑霜效果显著,制热性能得到显著改善,能效提升达到21%~37.3%,费用年值比常规空气源热泵降低了13%,1年左右即可回收追加的投资,具有更好的技术经济性,有助于空气源热泵技术在严重结霜气候区域的高效应用。
Frosting(especially severe frosting)in air-source heat pump(ASHP)units leads to a substantial decrease in operating performance.The development of frost-suppression ASHP(FSASHP)is key to ensuring their efficient application and healthy development.In this study,a field test study was conducted using a residential demonstration project in Kangding City,Sichuan Province.The study compared a FSASHP and a conventional ASHP unit to explore the frosting suppression and operating performances and analyze the economy of the FSASHP unit.The results showed that the effects of frosting suppression and the improvement of heating performances were substantial for the FSASHP unit.The coefficient of performance of the FSASHP unit were 21%-37.3%higher,with annual costs 13%lower compared to those of the conventional ASHP unit.The payback period of the FSASHP unit was approximately 1 year,and the FSASHP unit had better technical and economic efficiency.This study was helpful for the efficient application of ASHP units in severe frosting regions.
作者
梁士民
王伟
孙育英
林瑶
王世权
Liang Shimin;Wang Wei;Sun Yuying;Lin Yao;Wang Shiquan(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao,266520,China;Faculty Architecture,Civil and Transportation Engineering,Beijing University of Technology,Beijing,100124,China)
出处
《制冷学报》
CAS
CSCD
北大核心
2022年第5期24-32,共9页
Journal of Refrigeration
基金
“十三五”国家重点研发计划项目(2016YFC0700400)资助。
关键词
空气源热泵
抑霜
运行性能
技术经济性
现场测试
air-source heat pump
frosting-suppression
operating performance
technological economy
field test
作者简介
通信作者:梁士民,男,副教授,青岛理工大学大学环境与市政工程学院,15066250675,E-mail:liangshimin@qut.edu.cn。研究方向:可再生能源利用、建筑节能、热环境营造。
