热管置入式墙体传热优化研究  

HEAT TRANSFER OPTIMIZATION OF WALL IMPLANTED WITH HEAT PIPES

作　　者：张志刚[1] 段彩侠[1] 

机构地区：[1]天津城建大学能源与安全工程学院,天津300384

出　　处：《太阳能学报》2016年第4期945-950,共6页Acta Energiae Solaris Sinica

基　　金：国家科技支撑计划(2013BAJ09B03)

摘　　要：提出一种新型被动式太阳能利用技术——热管置入式墙体。通过理论分析和实验测试对其传热性能进行优化研究，考察热管管径、蒸发段长度比、充液率等因素对热管置入式墙体传热性能的影响。研究表明，平均等效传热系数与热管外径近似成线性关系，在热管置入式墙体结构允许的条件下宜选用较大管径，蒸发段长度比的最佳范围为67％－80％；重力热管充液率对热管置入式墙体等效传热系数的影响显著，最佳充液率范围为30％－40％。A new type of passive solar energy utilization technology, the wall implanted with heat pipes, was put forward. The heat transfer performance of the wall was optimized theoretically and experimentally. The diameter, length ratio of evaporation section and filling ratio of heat pipes were considered in the optimization. The results show that the relationship of the average equivalent heat transfer coefficient and the heat pipes diameter are approximately linear, and heat pipes with larger diameter should be selected if the wall structure performance is not affected. The optimal range of evaporation length ratio is 67%-80%. Liquid filling ratio has a great influence on the equivalent heat transfer coefficient. The optimum filling ratio is from 30% to 40%.

关 键 词：墙体 热管 等效传热系数 室外综合温度 

分 类 号：TK511.2[动力工程及工程热物理—热能工程]