Heat transfer and friction factor correlations development for solar air heater duct artificially roughened with ‘S’ shape ribs

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• 作者：Khushmeet Kumar^a ; ^{Khush2k33@gmail.com} ; D.R. Prajapati^b ; Sushant Samir^b
• 关键词：Solar air heater ; Artificial roughness ; Heat transfer ; Friction factor
• 刊名：Experimental Thermal and Fluid Science
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：82
• 期：Complete
• 页码：249-261
• 全文大小：3068 K
• 卷排序：82

文摘

We had investigated artificially roughened solar air heater duct of aspect ratio 12. Circular cross section arc shaped ribs arranged in ‘S’ shape pattern were used. Significant enhancement was found in thermal performance as compared to smooth duct. Correlations were developed for heat transfer and friction factor. Correlations can predict the heat transfer and friction factor with ±10% deviation.