结合TEC的泵驱两相温控系统的空间应用
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摘要
为满足天舟一号货运飞船(TZ1)蒸发冷凝科学实验的控温需求,采用半导体制冷片(TEC)和泵驱两相回路结合的控温系统实现了冷凝台-5～40℃(±0. 2℃)的控温要求。对TEC和平行流换热器进行了研究,结果表明该系统能够满足环境温度等于30℃工况下的制冷和散热要求。测试结果表明,平行流换热器在地面和在轨的换热相当,说明重力的影响几乎可以忽略。
In order to meet the requirements of the evaporation and condensation experiments in Tianzhou-1 cargo spaceship(T Z-1),the system combining the thermoelectric cooling chip(TEC) with the pumped two-phase loop has realized the condensation stage temperature control requirement of-5-40 ℃(± 0. 2 ℃). The research on T EC and the parallel flow heat exchanger shows that the system can meet the requirements of the cooling and heat dissipation under the condition of the ambient temperature equal to 30 ℃. The results show that the heat transfer of the parallel flow heat exchanger on the ground and on orbit is comparable,indicating that the effect of gravity is almost negligible.
In order to meet the requirements of the evaporation and condensation experiments in Tianzhou-1 cargo spaceship(T Z-1),the system combining the thermoelectric cooling chip(TEC) with the pumped two-phase loop has realized the condensation stage temperature control requirement of-5-40 ℃(± 0. 2 ℃). The research on T EC and the parallel flow heat exchanger shows that the system can meet the requirements of the cooling and heat dissipation under the condition of the ambient temperature equal to 30 ℃. The results show that the heat transfer of the parallel flow heat exchanger on the ground and on orbit is comparable,indicating that the effect of gravity is almost negligible.
引文
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[12] Kays W M,Whitelaw J H. Convective heat and mass transfer[M]. New York:Mc Graw-Hill,2011.
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[2] Bienert W B. Loop heat pipe flight experiment[C]. Space Technology&Applications International Forum,1998.
[3] Huang Z,He Z,Mo D,et al. Coupling between an accumulator and a loop in a mechanically pumped carbon dioxide two-phase loop[J]. Microgravity Science&Technology,2009,21(1):23-29.
[4]于新刚,徐侃,苗建印,等.高热流散热泵驱两相流体回路设计及飞行验证[J].宇航学报,2017,38(2):192-197.[Yu Xin-gang,Xu Kan,Miao Jian-yin,et al. Design and on-board validation of pumped two-phase fluid loop for high heat flux removal[J]. Journal of Astronautics,2017,38(2):192-197.]
[5]杨明伟,许文海,唐文彦.热电制冷器的等效电路模拟与分析[J].红外与激光工程,2007,36(2):281-285.[Yang Ming-wei,Xu Wen-hai,Tang Wen-yan. Modeling and analysis of thermoelectric cooler by equivalent circuit method[J].Infrared and Laser Engineering,2007,36(2):281-285.]
[6] Dario E R,Tadrist L,Passos J C. Review on two-phase flow distribution in parallel channels with macro and micro hydraulic diameters:main results,analyses,trends[J]. Applied Thermal Engineering,2013,59(1-2):316-335.
[7] Sakamatapan K,Kaew-ON J,Dalkilic A S,et al. Condensation heat transfer characteristics of R-134a flowing inside the multiport minichannels[J]. International Journal of Heat&Mass Transfer,2013,64(5):976-985.
[8] Chung K,Lee K S,Kim W S. Optimization of the design factors for thermal performance of a parallel-flow heat exchanger[J].International Journal of Heat&Mass Transfer,2002,45(24):4773-4780.
[9] Chang Y J,Wang C C. A generalized heat transfer correlation for Iouver fin geometry[J]. International Journal of Heat&Mass Transfer,1997,40(3):533-544.
[10] Gholamalizadeh E,Kim M H. CFD study of air-side heat transfer and pressure drop characteristics of multi-louvered fin and flat tube heat exchangers[C]. Acra-Asian Conference on Refrigeration and Air Conditioning,Jeju Island,Korea,2014.
[11] Lee P S,Garimella S V,Liu D. Investigation of heat transfer in rectangular microchannels[J]. International Journal of Heat&Mass Transfer,2005,48(9):1688-1704.
[12] Kays W M,Whitelaw J H. Convective heat and mass transfer[M]. New York:Mc Graw-Hill,2011.
[13] Choi S B,Barron R F,Warrington R O. Fluid flow and heat transfer in microtubes[C]. Micromechanical Sensors,Actuators and Systems:ASME Winter Annual Meeting,Atlanta,USA,December 1-6,1991.
[14] Owhaib W,Palm B. Experimental investigation of single-phase convective heat transfer in circular microchannels[J].Experimental Thermal&Fluid Science,2004,28(2):105-110.
[15] Incropera F P. Fundamentals of heat and mass transfer[M].Hoboken:Wiley,1985.
[16] Cavallini A,Censi G,Col D D,et al. Condensation inside and outside smooth and enhanced tubes-a review of recent research[J]. International Journal of Refrigeration,2003,26(4):373-392.