CHEN Xin, XIAO Gang, TONG Lianghuai, et al. Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid[J]. Thermal power generation, 2020, 49(9): 23-31.
CHEN Xin, XIAO Gang, TONG Lianghuai, et al. Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid[J]. Thermal power generation, 2020, 49(9): 23-31. DOI: 10.19666/j.rlfd.201912253.
Carbon dioxide is potential work media of Stirling engine for long-term running and low operating cost. To analyze the characteristics of carbon dioxide flowing in the regenerator of Stirling engine
improve the Stirling cycle analysis method
and better design and optimize the Stirling engine based on carbon dioxide
a finite volume model and an oscillating flow model are established based on the CFD method
and an oscillating flow experimental bench is established for verification to obtain the pressure drop and friction characteristics and flow resistance correlation of carbon dioxide in the wire mesh regenerator. It is found that
there is a large difference in the flow resistance correlation between the hot and cold blowing processes. The difference of flow resistance factor of carbon dioxide and air is less than 10% at high Reynolds number(1 733 Key Words: Stirling engine;oscillating flow;regenerator;flow characteristics;cycle rate;carbon dioxide Abstract: Keywords: Foundation: Authors: CHEN Xin;XIAO Gang;TONG Lianghuai;SUN Anwei;NI Mingjiang; DOI: 10.19666/j.rlfd.201912253