Experimental study on performance of liquid cooling garment with application of titanium dioxide nanofluids
WANG Tao1,2, WANG Liang3, LIN Gui ping1, BAI Li zhan1,4, LIU Xiang yang2, BU Xue qin1, XIE Guang hui2
1. Laboratory of Fundamental Science on Ergonomics and Environment Control, Beihang University, Beijing 100191, China; 2. China Astronaut Research and Training Center, Beijing 100094, China; 3. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China; 4. School of Chemical and Process Engineering, University of Leeds,Leeds LS2 9JT, UK
The experimental study for the performance of liquid cooling garment (LCG) with the application of TiO2 nanofluids was conducted in order to better understand and utilize the characteristics of enhancing heat transfer for nanofluids applied in LCG. A thermal manikin system was employed to simulate heating from a human body. The performance of the LCG with TiO2 nanofluids as the working fluid was compared with water by a variety of aspects such as heat dissipation, temperature control and pump power consumption under both steady state and transient conditions. Experimental results show that the inlet temperature, mass flow rate and volume fraction of TiO2 nanofluids are three key parameters affecting the performance of the LCG, which can be significantly enhanced by a proper combination of these parameters. If the parameters not matching, the performance of the LCG will deteriorate or even be worse than that using water as the working fluid. When the inlet temperature, mass flow rate and volume fraction of TiO2 nanofluids were selected as 15 ℃, 1 000～1 400 g/min and 2% respectively, the heat dissipation of the LCG was enhanced by up to 6% compared with using water. The pump power declined about 0.70～0.80 times of water. Both the temperature distribution in the thermal manikin LCG system and the capability for adapting abrupt heat load change were improved.
WANG Tao, WANG Liang, LIN Gui ping, BAI Li zhan, LIU Xiang yang, BU Xue qin, XIE Guang hui. Experimental study on performance of liquid cooling garment with application of titanium dioxide nanofluids. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(4): 681-690.
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