Title |
Forced Convection Correlation for Single Circular Fin-tube Heat Exchanger |
Keywords |
Heat transfer ; 열전달 ; Heat exchanger ; 열교환기 ; Circular fin-tube ; 원형휜-원형관 ; Performance ; 성능 ; Correlation ; 상관식 |
Abstract |
This work was performed to investigate the heat transfer characteristics of the circular fin-tube heat exchanger. This paper contains the experimental data for the seven kinds of fin geometries. The correlation of Stasiulevicius agreed with the experimental data at high Reynolds number, however not well at low Reynolds number. The Nusselt number was well correlated with Graetz number, and showed a transition near Gz=10. An empirical correlation proposed in the present work agreed well with the experimental data. |