Experimental investigation of pool boiling characteristics in Al₂O₃ nanofluid according to surface roughness and concentration

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• 作者：Jeonggyun Ham^a ; Hyungmin Kim^a ; Yunchan Shin^a ; Honghyun Cho^b ; ^{hhcho@chosun.ac.kr}
• 关键词：Nanofluid ; Pool boiling ; Critical heat flux ; Surface roughness ; Boiling heat transfer coefficient ; Contact angle
• 刊名：International Journal of Thermal Sciences
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：86-97
• 全文大小：3127 K
• 卷排序：114

文摘

A pool boiling experiment of Al2O3 nanofluid was carried out. The CHF at Ra = 177.5 and Ra = 292.8 nm improved by 224.8% and 138.5%. Over the concentration of 0.05 vol%, the improvement of the CHF decreased. BHTC of Al2O3 nanofluid for Ra = 177.5 was higher than that for Ra = 292.8 nm.