Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/29979
Type: Artigo de periódico
Title: Pressure drop coefficients for elliptic and circular sections in one, two and three-row arrangements of plate fin and tube heat exchangers
Author: Bordalo, Sérgio Nascimento
Saboya, Francisco Eduardo Mourão
Abstract: The objective of the present work is the experimental determination of pressure drop coefficients (loss coefficients) for elliptic and circular sections in one, two and three-row arrangements of plate fin and tube heat exchangers. The experiments permitted to correlate the dimensionless loss coefficient with the flow Reynolds number in the rectangular channel formed by the plate fins. The experimental technique consisted of the measurement of the longitudinal pressure distribution along the flow channel, for several values of air mass flow rate. The total number of data runs, each one characterized by the flow Reynolds number, was 216. The present geometry is used in compact heat exchangers for air conditioning systems, heaters, radiators, and others. Also, it is verified the influence of the utilization of elliptic tubes, instead of circular ones, in the pressure drop. The measurements were performed for Reynolds numbers ranging from 200 to 1900.
Subject: pressure drop
loss coefficient
elliptic tube
circular tube
rectangular channel
Editor: The Brazilian Society of Mechanical Sciences
Rights: aberto
Identifier DOI: 10.1590/S0100-73861999000400004
Address: http://dx.doi.org/10.1590/S0100-73861999000400004
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-73861999000400004
Date Issue: 1-Dec-1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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