摘要
搭建可视化的气泡泵性能实验系统,以常压饱和水为工质,对单压吸收式制冷机中气泡泵的稳态工作过程进行实验研究,就加热功率和沉浸比对气泡泵提升性能的影响进行了分析。实验结果表明,相同沉浸比下,液体的提升量随着加热功率增加而增加,但增加的速率却随加热功率的增加而减缓;较大的沉浸比有利于降低启动加热功率,提高气泡泵的效率;分析结果对气泡泵的优化设计提供了实验依据,对单压吸收式制冷机性能的提高具有重要意义。
A visual bubble pump experiment system was built to study the bubble pump performance of single - pressure absorption refrigerator working in stable state, which used saturated water as working fluid. Influence of heating power and immersed ratio was analyzed on the lifting performance of bubble pump. The experimental results showed that, at the same immersed ratio, the liquid lifting quantity increased with the increase of heating power. However, the rate of increase was not a con- sistent with the increase of heating power, it increased slowly. A larger immersed ratio was favorable to reduce bubble pump＇s startup heating power and improve the efficiency. The results provided not only an experimental basis for the optimum design of the pyramidal bubble pump, but also had an important significance in improving the efficiency of single - pressure absorption refrigerator.
出处
《低温与超导》
CAS
CSCD
北大核心
2010年第4期51-53,62,共4页
Cryogenics and Superconductivity
基金
上海市研究生创新基金项目(JWCXSL1002)资助
关键词
工程热物理
气泡泵
实验研究
弹状流
Engineering thermophysics, Bubble pump, Experimental research, Slug flow
