논문 해외 국제전문학술지(SCI급) Air side heat transfer coefficients of discrete plate finned-tube heat exchangers with large fin pitch
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2010-02
- 저자명 최종민
- 학술지명 APPLIED THERMAL ENGINEERING
- 발행처명 PERGAMON-ELSEVIER SCIENCE LTD
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
The objective of this study is to investigate the heat transfer characteristics of discrete plate finned-tube heat exchangers w ith large fin pitches. Thirty-four heat exchangers were tested with variations of fin pitches, the number of tube rows, fin alignme nt, and vertical fin space. The j-factor of the discrete plate finned-t ube exchanger was analyzed asa function of coil geometry and then compared with that of the continuous plate finned-tube heat exchanger. For fin pitches of 7.5-15 mm, the j-factors; of the discrete plate fi nned-tube heat exchangers were 6.0-11.6% higher than those of the conti nuous plate finned-tube heat exchangers. Two separate correlations for the j-factor were developed for the inline and the staggered fin alignment in the discrete plate finned-tube heat exchangers to predict the measured data within a relative deviation of 2.9%. (C) 2009 Elsevier Ltd. All rights reserved.