Study on the Performance of Nickel Foam Serving as Thermal Storage & Exchange Material for Space Green Thruster
ZENG Wenwen1,2, DUAN Deli2, WANG Meng3, YANG Xiaoguang2, LI Shu2, ZHANG Shihong2
1 University of Chinese Academy of Sciences, Beijing 100049; 2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016; 3 Beijing Institute of Control Engineering, Beijing 100090;
Abstract: Based on the heating start-up conditions of the space green thruster a self-developed apparatus for thermal storage & exchange was set up. The influence of thickness, pore density and bulk density on the transient heat-exchange capacity (THC) between nickel foams and fluids was studied. The results indicated that THC of nickel foams increased with its thickness. The specific surface area was the key parameter to influence the THC under low pore density (20—70 PPI), as THC increased with the pore and bulk density. The flow resistance became the significant parameter under high pore density (100 PPI), as THC increase rapidly while it changes little with increase of bulk density. Moreover, a flow resistance apparatus was built up to measure and compare the flow resistance of nickel foams and catalyzer under forced convection. The results indicated that flow resistance increased with the pore and bulk densities. The flow resistance of catalyzer was higher than that of all nickel foams used in this work. Thermal storage & exchange test, igniting test and mechanical property should be taken into overall consideration to determine the appropriate pore and bulk density of the foam in the view of practical application.
曾文文, 段德莉, 王梦, 杨晓光, 李曙, 张士宏. 用于空间绿色发动机蓄换热的泡沫镍材料的性能研究[J]. 《材料导报》期刊社, 2017, 31(14): 77-81.
ZENG Wenwen, DUAN Deli, WANG Meng, YANG Xiaoguang, LI Shu, ZHANG Shihong. Study on the Performance of Nickel Foam Serving as Thermal Storage & Exchange Material for Space Green Thruster. Materials Reports, 2017, 31(14): 77-81.
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2017, Vol. 31 
