Pumping criterion and dynamic measurements of an inverted U-shape heat driven pump using microchannels and miniature check valves

doi:10.1016/j.expthermflusci.2004.08.004

GIEC OpenIR > 中国科学院广州能源研究所

	Pumping criterion and dynamic measurements of an inverted U-shape heat driven pump using microchannels and miniature check valves
	Xu, JL; Shi, X
	2005-06-01
发表期刊	EXPERIMENTAL THERMAL AND FLUID SCIENCE
卷号	29 期号:5 页码:579-590
摘要	We demonstrated an inverted U-shape heat driven pump consisting of a microchannel heat sink, two vertical branches and two miniature check valves. A new criterion, which is governed by the fluid physical properties, the geometry effect and the heat transfer rates at various oscillating stages, was developed. The theory can explain the operating range of the applied heating power. The dynamic measurements with a high speed data acquisition system shows that periodically a full cycle can be subdivided into a short liquid suction stage, a bulk boiling and a fluid discharge stage, followed by a pressure decrease stage with both of the valves closed. The average mass flow rate is small and can be computed by the energy conservation equation. The cycle period is shortened with increasing the applied heating power. The wall temperatures of the microchannel heat sink are oscillating with small amplitudes but they are slightly higher than the saturated temperature of the working fluid by several degrees. Deionized water was selected as the working fluid. Finally a closed loop heat driven pump design incorporating the microchannel heat sink and the condenser fin heat sink is proposed. (c) 2004 Elsevier Inc. All rights reserved.
文章类型	Article
关键词	Heat Driven Pump Fluid Discharge/suction Criterion Oscillating Thermal Performance
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.expthermflusci.2004.08.004
研究领域[WOS]	Thermodynamics ; Engineering ; Physics
收录类别	SCI
语种	英语
WOS类目	Thermodynamics ; Engineering, Mechanical ; Physics, Fluids & Plasmas
WOS记录号	WOS:000228536600004
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10217
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Xu, JL,Shi, X. Pumping criterion and dynamic measurements of an inverted U-shape heat driven pump using microchannels and miniature check valves[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE,2005,29(5):579-590.
APA	Xu, JL,&Shi, X.(2005).Pumping criterion and dynamic measurements of an inverted U-shape heat driven pump using microchannels and miniature check valves.EXPERIMENTAL THERMAL AND FLUID SCIENCE,29(5),579-590.
MLA	Xu, JL,et al."Pumping criterion and dynamic measurements of an inverted U-shape heat driven pump using microchannels and miniature check valves".EXPERIMENTAL THERMAL AND FLUID SCIENCE 29.5(2005):579-590.