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: 0.175 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.v11.i4.140
pages 359-370

Performance Comparison Between Wire Coil and Twisted Tape Inserts

Karl Ponweiser
Vienna University of Technology, Institute of Applied Thermodynamics, Vienna, Austria
Wladimir Linzer
Institute of Thermal Engineering, Vienna University of Technology, Getreidemarkt 9, Vienna, A-1060, Austria
Marina Malinovec
Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia

RESUMO

This work presents experimental results for heat transfer caused by convection of air in tubes with wire coil and twisted tape inserts. The characteristic parameters of the inserted tubes under investigation are length and position in the tube of the tested inserts. All tests are performed in a turbulent flow regime. Significantly higher inside heat transfer and friction factor coefficients than those of the smooth tube under same operating conditions have been observed. The performance of the wire coil and twisted tape inserts has been evaluated by three different criteria: maximizing heat transfer rate, minimizing heat exchanger size, and minimizing pumping power.


Articles with similar content:

INVESTIGATION OF HEAT TRANSFER COEFFICIENT FOR NON-CIRCULAR DUCT WITH TWISTED TAPE INSERT
Second Thermal and Fluids Engineering Conference, Vol.18, 2017, issue
D. A. Kamble, Prathmesh Joshi, R. J. Yadav, Sandip Kore
ENHANCEMENT OF HEAT TRANSFER IN TURBULENT FLOW THROUGH A TUBE WITH A PERFORATED TWISTED TAPE INSERT
Journal of Enhanced Heat Transfer, Vol.18, 2011, issue 1
Sarkar Rashid, S. Ahmed, Md. Abdul Wazed, J. U. Ahamed
Steam IVirbine Condensing Heat Exchanger Improvement Methods
Heat Transfer Research, Vol.30, 1999, issue 7-8
K. E. Aronson, A. Yu. Ryabdukov, Yu. M. Brodov, M. A. Nirenshtein
PRESSURE DROP AND PERFORMANCE EVALUATION OF AUGMENTED IN−TUBE CONDENSATION
International Heat Transfer Conference 6, Vol.2, 1978, issue
Arthur E. Bergles, J. H. Royal
Enhancement of Heat Transfer Rates by Coiled Wires During Forced Convective Condensation of R-22 Inside Horizontal Tubes
Journal of Enhanced Heat Transfer, Vol.7, 2000, issue 2
M. A. Akhavan-Behabadi, H. K. Varma, K. N. Agarwal