Air-side heat transfer characteristics of flat plate finned-tube heat exchangers with large fin pitches under frosting conditions

作者：Lee Mooyeon; Kim Yonghan; Lee Hosung; Kim Yongchan

来源：International Journal of Heat and Mass Transfer, 2010, 53(13-14): 2655-2661.

DOI：10.1016/j.ijheatmasstransfer.2010.02.047

• Finned-tube heat exchanger
• Frost
• j-factor
• Pressure drop
• Correlation

The air-side heat transfer characteristics of flat plate finned-tube heat exchangers were measured and analyzed by varying the fin pitch, number of tube rows, and tube alignment under frosting conditions. Two empirical correlations for predicting the j-factor were developed separately for the inline and the staggered tube alignment, respectively, as a function of the Reynolds number, Fourier number, number of tube rows, and dimensionless hydraulic diameter normalized by fin pitch. The average deviation of the predictions of the present correlations from the measured data was 1.31% for the inline tube alignment and 0.65% for the staggered tube alignment.

• 出版日期2010-6