Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils

Finding the limiting heat flux above which nucleate boiling starts and below which forced convective heat transfer exists is a crucial task for the accuracy of results from crude oil fouling tests. In this study, crude oils from two sources were tested at bulk temperatures of 100, 120 and 140 °C an...

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Main Authors: Rehman, O.U., Ramasamy, M.G., Rozali, N.E.M., Deshannavar, U.B.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.29405 /
Published: Penerbit Akademia Baru 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117174391&doi=10.37934%2fARFMTS.85.2.115127&partnerID=40&md5=2129615a119a8e385858adb7a74346bc
http://eprints.utp.edu.my/29405/
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spelling utp-eprints.294052022-03-25T01:50:51Z Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils Rehman, O.U. Ramasamy, M.G. Rozali, N.E.M. Deshannavar, U.B. Finding the limiting heat flux above which nucleate boiling starts and below which forced convective heat transfer exists is a crucial task for the accuracy of results from crude oil fouling tests. In this study, crude oils from two sources were tested at bulk temperatures of 100, 120 and 140 °C and different velocities. Heat transfer coefficient increased gradually with bulk temperature indicated lowering of the viscosity at high temperatures which promoted turbulence and enhanced heat transfer. The velocity effects were similar to that of bulk temperatures on maximum heat transfer coefficient while less heat flux was required to achieve the same surface temperature at lower velocities. Deshannavar and Ramasamy's model to predict maximum heat flux was compared with experimental results and a poor estimation was observed for the crude oils tested. © 2021. All Rights Reserved. Penerbit Akademia Baru 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117174391&doi=10.37934%2fARFMTS.85.2.115127&partnerID=40&md5=2129615a119a8e385858adb7a74346bc Rehman, O.U. and Ramasamy, M.G. and Rozali, N.E.M. and Deshannavar, U.B. (2021) Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 85 (2). pp. 115-127. http://eprints.utp.edu.my/29405/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Finding the limiting heat flux above which nucleate boiling starts and below which forced convective heat transfer exists is a crucial task for the accuracy of results from crude oil fouling tests. In this study, crude oils from two sources were tested at bulk temperatures of 100, 120 and 140 °C and different velocities. Heat transfer coefficient increased gradually with bulk temperature indicated lowering of the viscosity at high temperatures which promoted turbulence and enhanced heat transfer. The velocity effects were similar to that of bulk temperatures on maximum heat transfer coefficient while less heat flux was required to achieve the same surface temperature at lower velocities. Deshannavar and Ramasamy's model to predict maximum heat flux was compared with experimental results and a poor estimation was observed for the crude oils tested. © 2021. All Rights Reserved.
format Article
author Rehman, O.U.
Ramasamy, M.G.
Rozali, N.E.M.
Deshannavar, U.B.
spellingShingle Rehman, O.U.
Ramasamy, M.G.
Rozali, N.E.M.
Deshannavar, U.B.
Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils
author_sort Rehman, O.U.
title Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils
title_short Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils
title_full Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils
title_fullStr Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils
title_full_unstemmed Determination of Limiting Heat Flux for The Inception of Nucleate Boiling Regime for Crude Oils
title_sort determination of limiting heat flux for the inception of nucleate boiling regime for crude oils
publisher Penerbit Akademia Baru
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117174391&doi=10.37934%2fARFMTS.85.2.115127&partnerID=40&md5=2129615a119a8e385858adb7a74346bc
http://eprints.utp.edu.my/29405/
_version_ 1741197236758380544
score 11.62408

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