| Title |
Performance Analysis of Fin-Tube Heat Exchangers with Various Fin Shapes for Waste Gas Heat Recovery |
| Authors |
맹재훈(Jae-Hun Maeng) ; 구병수(Byeong-Soo Koo) ; 전용두(Yong-Du Jun) ; 이금배(Kum-Bae Lee) |
| Keywords |
핀-튜브 열교환기 ; 폐열회수 ; 전열성능 ; Colburn 계수 ; 마찰계수 Fin-tube heat exchanger ; Waste gas heat recovery ; Heat transfer performance ; Colburn factor ; Friction factor |
| Abstract |
As an innovative effort to secure economically viable heat recovery system, various fin shapes for industrial fin-tube heat exchangers have been studied for better performance. In this study, the waste gas heat recovery from four different fin shapes was experimentally performed for heat transfer rate and pressure drop. According to the tested results, the twist and wavy shape fins of rectangular type show the superior performance in terms of Goodness factor and jH/f factor ratio, whereas the circular spiral fin shows the inferior values. Experimental results shows good comparison with the numerical results with a slight discrepancy of 5%, which is quite resonable. |