논문명 |
전열촉진관에서 Low GWP 냉매의 막응축 열전달 특성에 관한 연구 / A Study on the film condensation heat transfer characteristics of Low GWP refrigerants over enhanced tubes. / 7 포스터세션 |
저자명 |
장수영 ; 박찬우 ; 고지운 ; 전동순 ; 김선창 |
수록사항 |
대한설비공학회 동계학술발표회 논문집 (2017-11) |
주제어 |
열전달계수 ; 전열촉진관 ; 지구온난화지수 ; Heat Transfer Coefficient ; Enhanced Tube ; GWP |
요약2 |
This study aimed to evaluate the film condensation heat transfer performance of Low GWP refrigerants on enhanced tube. The experiments are conducted with varying the sub coolded temperature from 2 ~ 8℃ and changing the number of circumferential fins 85, 107. As result, the heat transfer coefficient decreased with the increase of the number of circumferential fins. The enhancement ratio were 10.5 to 13.1. And as much as number of circumferential fins have the higher heat transfer coefficient. |