대구경 타원관을 적용한 건조기용 핀-관 열교환기의 성능특성

• Published in: 설비공학 논문집, 27(1) Vol. 27; no. 1; pp. 8 - 13
• Main Authors: 배경진(Kyung-Jin Bae), 차동안(Dong-An Cha), 권오경(Oh-Kyung Kwon)
• Format: Journal Article
• Language: Korean
• Published: 대한설비공학회 2015
• Subjects: 기계공학; Heat transfer coefficient(열전달계수); Oval tube(타원관); Prssure drop(압력강하); Fin-tube heat exchanger(핀-관 열교환기); -
• ISSN: 1229-6422; 2465-7611
• DOI: 10.6110/KJACR.2015.27.1.008

The objective of this paper is to provide design data of fin-tube heat exchanger which have a large diameter oval tube for dryer application. In this study, the heat transfer and pressure drop performance characteristics of the fin-tube heat exchanger were compared with Dittus-Boelter and a new correlation equation using Wilson plot method. The simulation results based on section by section method were compared with experimental results. These results showed that a new correlation equation using Wilson plot method provided better prediction, about 3 to 12%, than the Dittus-Boelter equation, from the experiment comparison. Also, the pressure drop of simulation results showed much more deviation with the experimental results.