Second law analysis of fully developed laminar flow for rectangular ducts with semicircular ends

Hakan F. Öztop; Ihsan Daǧtekin; Ahmet Z. Şahin

doi:10.1016/j.icheatmasstransfer.2009.03.021

Second law analysis of fully developed laminar flow for rectangular ducts with semicircular ends

Hakan F. Öztop
, Ihsan Daǧtekin^*
, Ahmet Z. Şahin

^*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

9 Atıf (Scopus)

Özet

Second law analysis is performed analytically for rectangular ducts with semicircular ends in laminar flow. Two different situations are considered for the analysis. In the first case, boundaries of duct are considered in constant wall temperature. In the second case, constant wall heat flux boundary conditions applied. Entropy generation is obtained for various cross sectional areas, various wall heat flux and Reynolds numbers. It is found that with the increasing aspect ratio (β) values for both constant wall temperature (CWT) and constant heat flux (CHF) total entropy generation increases, however, required pumping power also increases.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	725-730
Sayfa sayısı	6
Dergi	International Communications in Heat and Mass Transfer
Hacim	36
Basın numarası	7
DOI'lar	https://doi.org/10.1016/j.icheatmasstransfer.2009.03.021
Yayın durumu	Yayınlandı - Ağu 2009
Harici olarak yayınlandı	Evet

Belgeye Erişim

10.1016/j.icheatmasstransfer.2009.03.021

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Second law analysis of fully developed laminar flow for rectangular ducts with semicircular ends",

abstract = "Second law analysis is performed analytically for rectangular ducts with semicircular ends in laminar flow. Two different situations are considered for the analysis. In the first case, boundaries of duct are considered in constant wall temperature. In the second case, constant wall heat flux boundary conditions applied. Entropy generation is obtained for various cross sectional areas, various wall heat flux and Reynolds numbers. It is found that with the increasing aspect ratio (β) values for both constant wall temperature (CWT) and constant heat flux (CHF) total entropy generation increases, however, required pumping power also increases.",

keywords = "Constant heat flux, Duct, Entropy, Laminar flow",

author = "{\"O}ztop, \{Hakan F.\} and Ihsan Daǧtekin and {\c S}ahin, \{Ahmet Z.\}",

year = "2009",

month = aug,

doi = "10.1016/j.icheatmasstransfer.2009.03.021",

language = "English",

volume = "36",

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journal = "International Communications in Heat and Mass Transfer",

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T1 - Second law analysis of fully developed laminar flow for rectangular ducts with semicircular ends

AU - Öztop, Hakan F.

AU - Daǧtekin, Ihsan

AU - Şahin, Ahmet Z.

PY - 2009/8

Y1 - 2009/8

N2 - Second law analysis is performed analytically for rectangular ducts with semicircular ends in laminar flow. Two different situations are considered for the analysis. In the first case, boundaries of duct are considered in constant wall temperature. In the second case, constant wall heat flux boundary conditions applied. Entropy generation is obtained for various cross sectional areas, various wall heat flux and Reynolds numbers. It is found that with the increasing aspect ratio (β) values for both constant wall temperature (CWT) and constant heat flux (CHF) total entropy generation increases, however, required pumping power also increases.

AB - Second law analysis is performed analytically for rectangular ducts with semicircular ends in laminar flow. Two different situations are considered for the analysis. In the first case, boundaries of duct are considered in constant wall temperature. In the second case, constant wall heat flux boundary conditions applied. Entropy generation is obtained for various cross sectional areas, various wall heat flux and Reynolds numbers. It is found that with the increasing aspect ratio (β) values for both constant wall temperature (CWT) and constant heat flux (CHF) total entropy generation increases, however, required pumping power also increases.

KW - Constant heat flux

KW - Duct

KW - Entropy

KW - Laminar flow

UR - https://www.scopus.com/pages/publications/67649094089

U2 - 10.1016/j.icheatmasstransfer.2009.03.021

DO - 10.1016/j.icheatmasstransfer.2009.03.021

M3 - Article

AN - SCOPUS:67649094089

SN - 0735-1933

VL - 36

SP - 725

EP - 730

JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

IS - 7

ER -

Second law analysis of fully developed laminar flow for rectangular ducts with semicircular ends

Özet

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