计量学报2025，Vol.46Issue(4)：505-510,6.DOI:10.3969/j.issn.1000-1158.2025.04.06
热虹吸优化相变-热电系统传热性能研究
Thermosyphons Optimized Phase Change-thermoelectric System Heat Transfer Performance Study
摘要
Abstract
In order to overcome the disadvantage of poor heat transfer performance of phase change materials(PCM)itself,heat transfer enhancement technology is used to improve the efficiency of heat energy utilisation.Higher thermal conductivity than that of metals is achieved by using the phase change process of the working medium inside the thermosiphon(TS).The thermal siphon is introduced into the PCM-TEG(thermoelectric generators)coupling system to improve the thermal energy utilisation.The effects of the ratio of heat transfer sections of the thermosiphon(4:2:4 and 3:3:3 cases)and the cooling conditions(natural cooling mode versus water cooling mode)on the power generation performance of the PCM-TS-TEG coupled system are experimentally investigated in a comparative manner.The results show that in the natural cooling mode,the axial temperature difference between the two ends of the heat pipe is 20.91℃ when the ratio of heat pipe sections is 4:2:4,which is 7.45℃ less than that of the 3:3:3 condition,and shows better heat transfer performance.Moreover,under this ratio of heat transfer sections,the PCM-TS-TEG coupled system produces better power output during the PCM phase transition,with a cumulative output of 86.44 J.On the basis of the above experimental results,the effect of the water cooling mode on the power generation performance of the system is further investigated,and it is found that the system produces the highest power output,with a total output of 410.28 J,at a water-cooled flow rate of 16 r/min.关键词
热学计量/传热性能/热虹吸管/相变材料/热电器件/热电转换/热能存储Key words
thermometrics/heat transfer performance/thermosyphons/phase change material/thermoelectric generator/thermoelectric conversion/thermal energy storage引用本文复制引用
孙浩焱,王琴,王元元,刘安邦,俞晓晓,吴子华..热虹吸优化相变-热电系统传热性能研究[J].计量学报,2025,46(4):505-510,6.基金项目
国家自然科学基金(52176081,52306259) （52176081,52306259）
上海市启明星培育扬帆专项(23YF1413500) （23YF1413500）
上海市科委地方院校能力建设(22010500500) （22010500500）
上海市青年科技启明星计划(21QA1403300) （21QA1403300）
上海第二工业大学研究生副导师科研能力提升专项(EGD24DS03) （EGD24DS03）
