CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger

Asphaltenes are identified as the main cause of crude oil fouling in the shell and tube exchangers. There are occasions where the crude oil flows through the shell side of the heat exchangers and some fouling is reported in the shell side of those heat exchangers. Understanding the fouling phenomena...

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Main Authors: Emani, S., Ramasamy, M., Shaari, K.Z.K.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.20049 /
Published: American Institute of Physics Inc. 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026388658&doi=10.1063%2f1.4990271&partnerID=40&md5=b650b1140fe20ab7d9a515702d218fbe
http://eprints.utp.edu.my/20049/
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spelling utp-eprints.200492018-04-22T14:38:55Z CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger Emani, S. Ramasamy, M. Shaari, K.Z.K. Asphaltenes are identified as the main cause of crude oil fouling in the shell and tube exchangers. There are occasions where the crude oil flows through the shell side of the heat exchangers and some fouling is reported in the shell side of those heat exchangers. Understanding the fouling phenomena in the shell sides requires the knowledge on the irregular fluid flow paths and most susceptible locations of particles deposition. In the present work, an attempt has been made to investigate the effect of shear stress and surface roughness on shell-side asphaltenes deposition in a shell and tube heat exchanger through Computational Fluid Dynamics approach. The hydrodynamics of asphaltenes particles and the effect of various forces on the asphaltenes deposition on the heat transfer surfaces has been investigated through a Lagrangian based discrete-phase model. From the CFD analysis, the net mass deposition of the asphaltenes particles reduces with an increase in surface roughness from 0 to 0.04 mm and wall shear stress from 0 to 0.04 Pa for flow velocity 1 m/s, respectively. The asphaltenes mass deposition becomes constant with further increase in wall shear stress and surface roughness. © 2017 Author(s). American Institute of Physics Inc. 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026388658&doi=10.1063%2f1.4990271&partnerID=40&md5=b650b1140fe20ab7d9a515702d218fbe Emani, S. and Ramasamy, M. and Shaari, K.Z.K. (2017) CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger. AIP Conference Proceedings, 1859 . http://eprints.utp.edu.my/20049/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Asphaltenes are identified as the main cause of crude oil fouling in the shell and tube exchangers. There are occasions where the crude oil flows through the shell side of the heat exchangers and some fouling is reported in the shell side of those heat exchangers. Understanding the fouling phenomena in the shell sides requires the knowledge on the irregular fluid flow paths and most susceptible locations of particles deposition. In the present work, an attempt has been made to investigate the effect of shear stress and surface roughness on shell-side asphaltenes deposition in a shell and tube heat exchanger through Computational Fluid Dynamics approach. The hydrodynamics of asphaltenes particles and the effect of various forces on the asphaltenes deposition on the heat transfer surfaces has been investigated through a Lagrangian based discrete-phase model. From the CFD analysis, the net mass deposition of the asphaltenes particles reduces with an increase in surface roughness from 0 to 0.04 mm and wall shear stress from 0 to 0.04 Pa for flow velocity 1 m/s, respectively. The asphaltenes mass deposition becomes constant with further increase in wall shear stress and surface roughness. © 2017 Author(s).
format Article
author Emani, S.
Ramasamy, M.
Shaari, K.Z.K.
spellingShingle Emani, S.
Ramasamy, M.
Shaari, K.Z.K.
CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
author_sort Emani, S.
title CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
title_short CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
title_full CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
title_fullStr CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
title_full_unstemmed CFD modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
title_sort cfd modelling of shell-side asphaltenes deposition in a shell and tube heat exchanger
publisher American Institute of Physics Inc.
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026388658&doi=10.1063%2f1.4990271&partnerID=40&md5=b650b1140fe20ab7d9a515702d218fbe
http://eprints.utp.edu.my/20049/
_version_ 1741196308040908800
score 11.62408

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