论文成果
Flow Boiling Heat Transfer of R141b in Sintered Porous Tubes
摘要:In this paper, the high flux tubes of 25 mm outer diameter with the content of 8% and 12% nanoparticles were experimentally studied with the refrigerant R141b under atmospheric pressure. The liquid mass flux was controlled from 128.30 to 252.03 kg/m(2)center dot s, the maximum heat flux provided by the electric heating rod was 80 kW/m(2), and the range of the superheated degree was from -7 to 4 degrees C. The results indicate that the porous media promotes the phase change at a low superheated degree, and the heat transfer capacity is 1.88 times that of the smooth tube. Additionally, the vapor quality increases significantly with the increase of nanoparticle concentration. Moreover, the heat transfer coefficient decreases as the outer wall temperature increases due to the formation of the gas film but increases with the increase of nano-powder content. Under the same superheated degree condition, the maximum heat transfer coefficient of the sintered porous tube with 12% nano-powder content is 1.3 times that of the tube with 8% nano-powder content.
ISSN号:0145-7632
卷、期、页:卷44期21-22:2144-2156
发表日期:2023-12-16
影响因子:2.172000
期刊分区(SCI为中科院分区):四区
收录情况:SCI(科学引文索引印刷版),SCIE(科学引文索引网络版)
发表期刊名称:HEAT TRANSFER ENGINEERING
参与作者:杨旭,刘莉
通讯作者:张棋,赵学智
第一作者:王科,张永学
论文类型:期刊论文
论文概要:王科,张棋,杨旭,刘莉,赵学智,张永学,Flow Boiling Heat Transfer of R141b in Sintered Porous Tubes,HEAT TRANSFER ENGINEERING,2023,卷44期21-22:2144-2156
论文题目:Flow Boiling Heat Transfer of R141b in Sintered Porous Tubes