Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Print: 2152-5102
ISSN Online: 2152-5110

Volumes:
Volume 47, 2020 Volume 46, 2019 Volume 45, 2018 Volume 44, 2017 Volume 43, 2016 Volume 42, 2015 Volume 41, 2014 Volume 40, 2013 Volume 39, 2012 Volume 38, 2011 Volume 37, 2010 Volume 36, 2009 Volume 35, 2008 Volume 34, 2007 Volume 33, 2006 Volume 32, 2005 Volume 31, 2004 Volume 30, 2003 Volume 29, 2002 Volume 28, 2001 Volume 27, 2000 Volume 26, 1999 Volume 25, 1998 Volume 24, 1997 Volume 23, 1996 Volume 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v25.i4-6.320
pages 810-815

Performance of a Heat Exchanger with Secondary Flow Effects in Fluid Streams

J. C. Ho
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent 0511, SINGAPORE

ABSTRACT

Design details and performance data are presented of a heat exchanger which harnesses the effects of secondary flow in fluid streams. The fluid streams within the heat exchanger are arranged to flow in counter flow arrangement in curved passages of constant curvature and rectangular cross section. The aspect ratio of the cross section and the curvature of the flow channels are selected to obtain the secondary flow instability in the streams over a wide range of flow rates. The performance of the heat exchanger is tested using hot and cold water streams with adjustable flow rates and temperatures. The temperature of the fluids is measured at several cross sections along the length of the heat exchanger together with the inlet and outlet temperatures of the streams. The local and overall heat transfer coefficients are evaluated. A second heat exchanger with identical dimensions, but without curvature in flow passages, is also constructed and performance tested under similar operating conditions. Comparison of the performance characteristics of the two heat exchangers indicates about 30 percent improvement in heat exchanger effectiveness and overall heat transfer coefficient.


Articles with similar content:

PERFORMANCE OF A HEAT EXCHANGER WITH SECONDARY FLOW EFFECTS IN FLUID STREAMS
Transport Phenomena in Thermal Engineering. Volume 2, Vol.0, 1993, issue
J. C. Ho, Tilak T. Chandratilleke
TURBULENT HEAT TRANSFER AND PRESSURE DROP IN SMOOTH AND FINNED ANNULAR DUCTS
International Heat Transfer Conference 8, Vol.6, 1986, issue
C. V. M. Braga , F. E. M. Saboya
EFFECTS OF ROTATION ANGLE OF TEARDROP-SHAPED DIMPLES ON HEAT TRANSFER ENHANCEMENT OF AIRFOIL INTERNAL COOLING INVESTIGATED BY TRANSIENT TECHNIQUE
International Heat Transfer Conference 16, Vol.14, 2018, issue
A.K.M. Nazrul Islam, Akira Murata, Kaoru Iwamoto, Katsumi Oho, Shohei Yamamoto
REPRESENTATION OF THE PERFORMANCE OF A FIN TUBE HEAT EXCHANGER BY ARTIFICIAL NEURAL NETWORKS
International Heat Transfer Conference 13, Vol.0, 2006, issue
C. K. Tan, R. Payne, S. J. Wilcox, John Ward
Regenerative heat exchanger with flow friction ventilator
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
A. Renz, Stefan Becker, R. Pauer, M. Becher