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Journal of Enhanced Heat Transfer
IF: 1.406 5-Year IF: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Print: 1065-5131
ISSN Online: 1563-5074

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v14.i3.20
pages 199-208

Experimental Investigation of a Small Capillary Pumped Loop Subjected to Antigravity

Qiang Li
MIIT Key Laboratory of Thermal Control of Electronic Equipment, School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
Yimin Xuan
School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Jiyu Qian
School of Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China

ABSTRACT

The small capillary pumped loop (CPL) has great application potentials in thermal management of microsatellite and electronic devices because of its unique performance of high efficiency, isothermal and lightweight feature. This paper is aimed at development and experimental investigation of operational characteristics of a small CPL. The experimental studies include different cases such as thermal behaviors of the small CPL corresponding to the start-up, abrupt variation of the heat load, frequent shut-down and start-up re-start, and frequent adjustment of the set-point temperature of the reservoir under the antigravity condition. The temperature oscillation phenomena are also studied. Through the experimental data, the main factors of affecting thermal feature of the small CPL are discussed and the possible approaches of improving the operating performance of the small CPL are suggested.


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