Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Journal of Enhanced Heat Transfer
Fator do impacto: 0.562 FI de cinco anos: 0.605 SJR: 0.211 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimir: 1065-5131
ISSN On-line: 1026-5511

Volumes:
Volume 26, 2019 Volume 25, 2018 Volume 24, 2017 Volume 23, 2016 Volume 22, 2015 Volume 21, 2014 Volume 20, 2013 Volume 19, 2012 Volume 18, 2011 Volume 17, 2010 Volume 16, 2009 Volume 15, 2008 Volume 14, 2007 Volume 13, 2006 Volume 12, 2005 Volume 11, 2004 Volume 10, 2003 Volume 9, 2002 Volume 8, 2001 Volume 7, 2000 Volume 6, 1999 Volume 5, 1998 Volume 4, 1997 Volume 3, 1996 Volume 2, 1995 Volume 1, 1994

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v18.i3.20
pages 191-207

MODELS FOR PRESSURE DROP AND HEAT TRANSFER IN AIR COOLED COMPACT WAVY FIN HEAT EXCHANGERS

M. Awad
Memorial University of Newfoundland
Yuri S. Muzychka
Department of Mechanical Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada

RESUMO

A detailed review and analysis of the thermal-hydrodynamic characteristics in air-cooled compact wavy fin heat exchangers is presented. New models are proposed which simplify the prediction of the Fanning friction factor f and the Colburn j factor. These new models are developed by combining the asymptotic behavior for the low Reynolds number and laminar boundary layer regions. In these two regions, the models are developed by taking into account the geometric variables such as: fin height (H), fin spacing (S), wave amplitude (A), fin wavelength (λ), Reynolds number (Re), and Prandtl number (Pr). The proposed models are compared with numerical and experimental data for air at different values of the geometric variables obtained from the published literature. The new models for f and j cover a wide range of the Reynolds number. Since the model is based analytically, it will also allow for proper design assessment of heat exchanger performance.


Articles with similar content:

BRAZED ALUMINUM HEAT EXCHANGERS AND THEIR AIR SIDE PERFORMANCE
Journal of Enhanced Heat Transfer, Vol.24, 2017, issue 1-6
Yu-Juei Chang, Chi-Chuan Wang
Air Side Performance of Brazed Aluminum Heat Exchangers
Journal of Enhanced Heat Transfer, Vol.3, 1996, issue 1
Yu-Juei Chang, Chi-Chuan Wang
Single-Phase Flow Pressure Drop and Heat Transfer Measurements in a Horizontal Microfin Tube in the Transition Regime
Journal of Enhanced Heat Transfer, Vol.16, 2009, issue 2
Yangnavalkya Mukkamala, R. Sundaresan
NUMERICAL INVESTIGATION OF PERFORMANCE CHARACTERISTICS OF PLATE AND WAVY FIN TUBE HEAT EXCHANGERS IN TRASITIONAL FLOW REGIME
International Heat Transfer Conference 13, Vol.0, 2006, issue
S. P. Panse, M. Ruhul Amin
AIRSIDE PERFORMANCE OF FIN-AND-TUBE HEAT EXCHANGERS HAVING SINE WAVE OR SINE WAVE-SLIT FINS
Journal of Enhanced Heat Transfer, Vol.20, 2013, issue 1
Nae-Hyun Kim, Baek Youn