中南大学学报（自然科学版）2017，Vol.48Issue(12)：3392-3399,8.DOI:10.11817/j.issn.1672-7207.2017.12.033
光伏太阳能热泵/环形热管复合热水系统性能模拟
Performance simulation of photovoltaic solar assisted heat pump/loop heat pipe hybrid water heater system
摘要
Abstract
A numerical model for photovoltaic solar assisted heat pump/loop heat pipe (PV-SAHP/LHP) hybrid water heater system was established. The performances of independent heat pump mode (HP) and loop heat pipe-heat pump switching mode (LHP-HP) were simulated. Based on the least power consumption, the effects of various solar radiation and ambient temperature on optimal switch ofLHP-HP mode were analyzed, and the all-year-round operation status was also calculated. The results show that when heating 150 L tank from 15℃ to 50℃ in typical spring and autumn sunny weather, the average thermal efficiency and electrical efficiency ofLHP-HP mode are respectively 37.00％ and 6.88％ lower than that of independent HP mode, while using theLHP-HP mode saves up to 40.60％ power consumption. With the increase of solar radiation and ambient temperature, the optimal switching water temperature ofLHP-HP increases and the compressor power consumption decreases. On sunny days from March to November,LHP-HP mode should be in priority-of-use mode to save electricity. HP mode should be used in winter or in low-solar radiation and ambient temperature conditions.关键词
太阳能热泵/环形热管/切换模式/性能模拟Key words
solar heat pump/loop heat pipe/switching mode/performance simulation分类
能源科技引用本文复制引用
张政,李舒宏..光伏太阳能热泵/环形热管复合热水系统性能模拟[J].中南大学学报（自然科学版）,2017,48(12):3392-3399,8.基金项目
"十二五"国家科技支撑计划项目(2014BAJ01B05) （2014BAJ01B05）
江苏省产学研前瞻性项目(BY2015070-14)(Project(2014BAJ01B05) supported by the National Science & Technology Pillar Program during the 12th "Five-year" Plan Period of China （BY2015070-14）
Project(BY2015070-14) supported by the Industry-Academy-Research Forward-Looking Program of Jiangsu Province) （BY2015070-14）
