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.
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)
关键词
吸收式制冷循环
热虹吸泵
流型
空泡率
absorption refrigeration cycles
thermosyphon
flow regimes
void fraction.
