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.v12.i4.70
pages 385-394

Heat Transfer in Turbulent Flow Through Tube with Wire-Coil Inserts

Sarkar Rashid
ME dept
M. Zaidul Islam
Department of Mechanical Engineering, Chittagong University of Engineering ƃ Technology, Chittagong, Bangladesh
M. A. Islam
Department of Mechanical Engineering, Bangladesh University of Engineering & Technology, Dhaka, Bangladesh

RESUMO

An experimental investigation has been carried out to study the pressure drop and turbulent flow heat transfer to air in a tube with wire-coil inserts with a varying pitch. Four test sections with four mild steel wire coils of different pitches (P = 12, 24, 40, and 50 mm with corresponding helix angles, α = 10, 20, 35, and 450°) were fabricated. Air velocity, air inlet and outlet temperatures, local wall temperature, local coil-surface temperature, and the pressure drop were collected for tubes with wire-coil-inserts to analyze the friction factor, the Nusselt number, the heat-transfer coefficient, and the heat transfer effectiveness. The results indicated that as much as two-fold improvement might be obtained in the turbulent flow heat-transfer coefficient and the heat transfer effectiveness. A correlation was also developed for prediction of the heat-transfer coefficient in turbulent flow for tubes with wire-coil-inserts.


Articles with similar content:

HEAT TRANSFER AND PRESSURE DROP IN TURBULENT FLOW THROUGH A TUBE WITH LONGITUDINAL PERFORATED STAR-SHAPED INSERTS
Journal of Enhanced Heat Transfer, Vol.18, 2011, issue 6
Sarkar Rashid, Mohammad Abdul Majid, Andrew Mintu Sarkar
AUGMENTATION OF CONDENSATION HEAT TRANSFER BY INTERNALLY FINNED TUBES AND TWISTED TAPE INSERTS
International Heat Transfer Conference 7, Vol.11, 1982, issue
N. Z. Azer, S. A. Said
AIR-SIDE FLOW AND HEAT TRANSFER FOR AN INCLINED OFFSET STRIP FIN-TUBE HEAT EXCHANGER WITH GROOVES
International Heat Transfer Conference 11, Vol.16, 1998, issue
Myung-Do Oh, Man-Heung Park, Jae-Heon Lee, Jin-Hyo Bae
CHARACTERISTICS OF FRICTIONAL RESISTANCE FOR GAS FLOW IN MICROTUBES
Proceedings of Symposium on Energy Engineering in the 21st Century (SEE2000) Volume I-IV, Vol.0, 2000, issue
Zhi-Xin Li, Dongxing Du, Zeng-Yuan Guo
HEAT TRANSFER ENHANCEMENT IN TURBULENT FLOW THROUGH A CIRCULAR TUBE WITH VARIOUS ARRANGEMENTS OF A DELTA WINGLET VORTEX GENERATOR
International Journal of Energy for a Clean Environment, Vol.16, 2015, issue 1-4
R. Ahmed, M. A. M. S. Shoshe, M. A. R. Sarkar