Publication:
The effect of different inlet geometries on laminar flow combined convection heat transfer inside a horizontal circular pipe

Simple item page
dc.citedby10
dc.contributor.authorMohammed H.A.en_US
dc.contributor.authorid15837504600en_US
dc.date.accessioned2023-12-29T07:54:42Z
dc.date.available2023-12-29T07:54:42Z
dc.date.issued2009
dc.description.abstractThe effect of different inlet geometries on laminar air flow combined convection heat transfer inside a horizontal circular pipe has been experimentally investigated for Reynolds number range of 400-1600, and the Grashof number range from 3.12 � 105 to 1.72 � 106. The experimental setup consists of an aluminum circular pipe as a heated section with 30 mm inside diameter and 900 mm heated length (L/D = 30) with different inlet geometries. A wall boundary heating condition of a uniform heat flux was imposed. The inlet configurations used in this paper are calming sections having the same inside diameter as the heated pipe but with variable lengths of Lcalm. = 600 mm (L/D = 20), Lcalm. = 1200 mm (L/D = 40), Lcalm. = 1800 mm (L/D = 60), Lcalm. = 2400 mm (L/D = 80), sharp-edged and bell-mouth. It was found that the surface temperature values for calming section length corresponding to (L/D = 80) were higher than other inlet geometries due to the lower mass flow rate and higher flow resistance. It was also observed that the Nusselt number values for bell-mouth inlet geometry were higher than other inlet geometries due to the differences in the average temperatures and densities of the air. The average heat transfer results were correlated with an empirical correlation in terms of dependent parameters of Grashof, Prandtl and Reynolds numbers. The proposed correlation was compared with available literature and it shows reasonable agreement. � 2008 Elsevier Ltd. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.applthermaleng.2008.03.024
dc.identifier.epage590
dc.identifier.issue02/03/2023
dc.identifier.scopus2-s2.0-55549123522
dc.identifier.spage581
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-55549123522&doi=10.1016%2fj.applthermaleng.2008.03.024&partnerID=40&md5=b76bbbf3c9e2be2d56fd10590f130d7a
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30854
dc.identifier.volume29
dc.pagecount9
dc.sourceScopus
dc.sourcetitleApplied Thermal Engineering
dc.subjectCombined convection
dc.subjectDifferent inlet geometries
dc.subjectFully developed flow
dc.subjectHeat exchangers applications
dc.subjectHorizontal circular pipe
dc.subjectUniform wall heat flux
dc.subjectAerodynamics
dc.subjectAir
dc.subjectAlumina
dc.subjectBells
dc.subjectFluid dynamics
dc.subjectHeat convection
dc.subjectHeat exchangers
dc.subjectHeat flux
dc.subjectHeat transfer
dc.subjectHeating equipment
dc.subjectLaminar flow
dc.subjectMixed convection
dc.subjectNanofluidics
dc.subjectPipe
dc.subjectReynolds number
dc.subjectThermoanalysis
dc.subjectCombined convection
dc.subjectDifferent inlet geometries
dc.subjectFully developed flow
dc.subjectHorizontal circular pipe
dc.subjectUniform wall heat flux
dc.subjectGeometry
dc.titleThe effect of different inlet geometries on laminar flow combined convection heat transfer inside a horizontal circular pipeen_US
dc.typeArticleen_US
dspace.entity.typePublication
Files
Collections
SCOPUS