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Numerical evaluation of spiral counter flow heat tecirculating burner

Fins are usually employed in heat exchangers such as cooling coils and condensers to enhance the heat transfer between two unmixed fluids. The heat transfer enhancement results from the increase in the external surface area of the heat exchanger. The performance of fins is usually expressed as fin e...

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Main Authors: Othman, Muhammad Firdaus, Mat Zin, Ahmad Faiz
Format: Book Section
Language:English
Published: Penerbit UTM 2008
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/24942/1/MohdYusoffSenawi2008_NumericalDeterminationOfEfficiency.pdf
http://eprints.utm.my/id/eprint/24942/
http://www.penerbit.utm.my/bookchapterdoc/FKM/bookchapter_fkm09.pdf
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spelling my.utm.249422017-10-09T08:54:36Z http://eprints.utm.my/id/eprint/24942/ Numerical evaluation of spiral counter flow heat tecirculating burner Othman, Muhammad Firdaus Mat Zin, Ahmad Faiz TJ Mechanical engineering and machinery Fins are usually employed in heat exchangers such as cooling coils and condensers to enhance the heat transfer between two unmixed fluids. The heat transfer enhancement results from the increase in the external surface area of the heat exchanger. The performance of fins is usually expressed as fin efficiency, defined as the ratio of the actual fin heat transfer to the maximum heat transfer if the whole fin was at the fin base temperature (Threlkeld, 1970). Analytical solution of efficiency of dry annular fins are reported in many handbooks (Kraus et al (2001), Incropera et al (1996). The solution is complex because it requires the calculation of modified Bessel functions of the first and second kind. Approximations are usually made to avoid the use of Bessel functions. Using Schmidt approximation, fin efficiency can be calculated within 0.01 of the exact value for efficiencies greater than 0.5 (Schmidt, 1949). Hong and Webb (1996) proposed a modification of the Schmidt equation for better accuracy. In this paper, a simple and accurate method is proposed. Penerbit UTM 2008 Book Section PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/24942/1/MohdYusoffSenawi2008_NumericalDeterminationOfEfficiency.pdf Othman, Muhammad Firdaus and Mat Zin, Ahmad Faiz (2008) Numerical evaluation of spiral counter flow heat tecirculating burner. In: Advances in Thermo-Fluids. Penerbit UTM , Johor, pp. 99-104. ISBN 978-983-52-0541-5 http://www.penerbit.utm.my/bookchapterdoc/FKM/bookchapter_fkm09.pdf
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Othman, Muhammad Firdaus
Mat Zin, Ahmad Faiz
Numerical evaluation of spiral counter flow heat tecirculating burner
description Fins are usually employed in heat exchangers such as cooling coils and condensers to enhance the heat transfer between two unmixed fluids. The heat transfer enhancement results from the increase in the external surface area of the heat exchanger. The performance of fins is usually expressed as fin efficiency, defined as the ratio of the actual fin heat transfer to the maximum heat transfer if the whole fin was at the fin base temperature (Threlkeld, 1970). Analytical solution of efficiency of dry annular fins are reported in many handbooks (Kraus et al (2001), Incropera et al (1996). The solution is complex because it requires the calculation of modified Bessel functions of the first and second kind. Approximations are usually made to avoid the use of Bessel functions. Using Schmidt approximation, fin efficiency can be calculated within 0.01 of the exact value for efficiencies greater than 0.5 (Schmidt, 1949). Hong and Webb (1996) proposed a modification of the Schmidt equation for better accuracy. In this paper, a simple and accurate method is proposed.
format Book Section
author Othman, Muhammad Firdaus
Mat Zin, Ahmad Faiz
author_facet Othman, Muhammad Firdaus
Mat Zin, Ahmad Faiz
author_sort Othman, Muhammad Firdaus
title Numerical evaluation of spiral counter flow heat tecirculating burner
title_short Numerical evaluation of spiral counter flow heat tecirculating burner
title_full Numerical evaluation of spiral counter flow heat tecirculating burner
title_fullStr Numerical evaluation of spiral counter flow heat tecirculating burner
title_full_unstemmed Numerical evaluation of spiral counter flow heat tecirculating burner
title_sort numerical evaluation of spiral counter flow heat tecirculating burner
publisher Penerbit UTM
publishDate 2008
url http://eprints.utm.my/id/eprint/24942/1/MohdYusoffSenawi2008_NumericalDeterminationOfEfficiency.pdf
http://eprints.utm.my/id/eprint/24942/
http://www.penerbit.utm.my/bookchapterdoc/FKM/bookchapter_fkm09.pdf
_version_ 1643647535573630976
score 13.223943

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