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Role of temperature, roughness and pressure in crystallization fouling from potable water on aluminium surface

Al-Gailani, Amthal; Sanni, Olujide; Charpentier, Thibaut V.J.; Barker, Richard; Crisp, Richard; Bruins, Jantinus H.; Neville, Anne

Authors

Olujide Sanni

Thibaut V.J. Charpentier

Richard Barker

Richard Crisp

Jantinus H. Bruins

Anne Neville



Abstract

This work evaluates the influence of surface temperature, roughness and system pressure on the crystallization fouling from potable water on an aluminium substrate. Experiments were conducted using two apparatus; one for temperature and roughness tests and another setup for pressure investigations. The findings show that a porous film of aluminium oxide forms on the aluminium substrate under all test conditions. Both temperature and surface roughness enhance the fouling rate with no obvious changes in the structure of the fouling layer. However, magnesium-calcium deposits were observed at the early stages of surface deposition. System pressure reduces the resistance to heat transfer as well as the scale amount on the surface. Moreover, the increase in pressure produces composite fouling of magnesium carbonate and calcium carbonate.

Citation

Al-Gailani, A., Sanni, O., Charpentier, T. V., Barker, R., Crisp, R., Bruins, J. H., & Neville, A. (2021). Role of temperature, roughness and pressure in crystallization fouling from potable water on aluminium surface. Thermal Science and Engineering Progress, 23, Article 100911. https://doi.org/10.1016/j.tsep.2021.100911

Journal Article Type Article
Acceptance Date Mar 8, 2021
Online Publication Date Mar 17, 2021
Publication Date Jun 1, 2021
Deposit Date Jun 17, 2022
Journal Thermal Science and Engineering Progress
Electronic ISSN 2451-9049
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 23
Article Number 100911
DOI https://doi.org/10.1016/j.tsep.2021.100911
Keywords Fouling; Aluminium; Pressure; Potable water; Calcium carbonate; Heat transfer
Public URL https://hull-repository.worktribe.com/output/4015408
Related Public URLs https://eprints.whiterose.ac.uk/172371/#:~:text=The%20findings%20show%20that%20a,structure%20of%20the%20fouling%20layer.