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Enhancing soot oxidation on surfaces using microtextures

Resource type
Thesis type
(Thesis) M.A.Sc.
Date created
2023-12-07
Authors/Contributors
Author: Oren, Oz
Abstract
Biomass combustion provides energy needs for millions worldwide, offering low net CO2 emissions. However, biomass combustors emit soot, posing significant health and environmental risks. Additionally, soot accumulation on the combustor's walls reduces the furnace's efficiency. This research demonstrates how microtextured surfaces can reduce soot accumulation by enhancing soot oxidation. Results show that randomly sandblasted microtextured glass exhibits a 71% reduction in the time required to oxidize 90% of surface soot coverage compared to smooth glass at 530°C. Soot oxidation rates varied depending on the size and spacing of the textures, with larger spacing leading to lower oxidation rates compared to smooth glass. The improved soot oxidation on microtextured surfaces is attributed to sharp features, such as peaks and corners, which decrease the soot layer thickness and increase the likelihood of soot encountering oxygen molecules. Consequently, microtextured surfaces facilitating soot oxidation can significantly enhance performance and longevity in various combustion applications.
Document
Extent
121 pages.
Identifier
etd22818
Copyright statement
Copyright is held by the author(s).
Permissions
This thesis may be printed or downloaded for non-commercial research and scholarly purposes.
Supervisor or Senior Supervisor
Thesis advisor: McTaggart-Cowan, Gordon
Thesis advisor: Khan, Sami
Language
English
Download file Size
etd22818_OOren.pdf 12.45 MB

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