小型吸收式制冷热虹吸泵的流态图研究  

New Two-phase Flow Regime Maps of Thermosyphon Applied for Absorption Refrigeration Cycles

作　　者：张总辉 杨丰畅[1] 杨洪海[1] 赖思雨 李可可[1] 

机构地区：[1]东华大学环境科学与工程学院

出　　处：《建筑热能通风空调》2015年第1期62-64,共3页Building Energy & Environment

基　　金：上海市自然科学基金(No.13ZR1401100)

摘　　要：在小型无泵吸收式制冷循环中,流型及流态转换研究对于考察热虹吸泵的运行机理及工作性能至关重要。目前,流态图是最有效确定热虹吸泵内流态的方法。在Samaras流态图的基础上,推导得到了一种适用于制冷系统的新型流态图(气体表观速度-空泡率),并对影响热虹吸泵内流态的因素进行了分析。Studies on flow patterns and transactions were key issues to investigate the characteristics and performance of thermosyphon（bubble pump） operated in diffusion-absorption refrigeration system. At present, the flow regime maps were the most effective method to determine the flow pattern in thermosyphon. On the basis of traditional flow regime map, a new flow regime map（vapor superficial velocity versus void fraction） for refrigeration system was built by using void fraction correlation. In the meantime, different factors influenced the flow patterns in thermosyhon were analyzed.

关 键 词：吸收式制冷循环 热虹吸泵 流型 空泡率 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]