制冷学报2026，Vol.47Issue(2)：26-34,9.DOI:10.12465/issn.0253-4339.20250110001
空气源热泵阵列"冷湿岛效应"与结除霜现象相互影响实测研究
Field Test on the Interactions Between"Cold and Wet Island Effect"and Frosting-Defrosting Phenomenon for Air-Source Heat Pump Array
摘要
Abstract
With the expansion of air-source heat pump(ASHP)heating systems,ASHP arrays have become the primary arrangements for medium-to large-scale heating projects.However,the"cold island effect"and"wet island effect"are likely to form at the center of the ASHP arrays.This results in frequent frosting and defrosting in the heat pump units.Conversely,the frequent frosting and defrosting also influence the"cold and wet island effect"in the ASHP array.To evaluate the mutual influences between the"cold and wet island effects"and the phenomena of frosting and defrosting,this study performed an investigation based on a demonstration project using ASHP array in Weihai,Shandong Province.The study established a field-testing platform and conducted field measurements.Typical day-testing results indicate that under the influence of the"cold and wet island effect",the defrosting frequency of ASHP unit at the center of the array increased by 225%compared with those on the periphery.Frequent defrosting reduced the intensity of the cold island effect of the central units by 4.3%and increased the wet island effect intensity by 3.9%.However,the effect was not significant.Additionally,the nominal heating capacity loss coefficient during the frosting-defrosting cycle for the central units increased by 59.3%,and their average heating capacity and COP decreased by 31.6%and 34.0%,respectively,compared with the peripheral units.This indicates a significant performance degradation in the central units.关键词
空气源热泵阵列/冷湿岛效应/结除霜/现场测试Key words
air-source heat pump array/cold and wet island effects/frosting and defrosting/field tests分类
建筑与水利引用本文复制引用
梁士民,王哲,高学锋,闫月茹,王刚,胡松涛,王洪伟..空气源热泵阵列"冷湿岛效应"与结除霜现象相互影响实测研究[J].制冷学报,2026,47(2):26-34,9.基金项目
本文受山东省自然科学基金面上项目(ZR2022ME148)和青岛市科技惠民示范专项项目(25-1-5-cspz-1-nsh)资助.The project was supported by Shandong Municipal Natural Science Foundation(No.ZR2022ME148)and Qingdao Science and Technology Benefiting the People Demonstration Special Project(No.25-1-5-cspz-1-nsh). （ZR2022ME148）
