An Investigation into the Effect of Hydrodynamic Cavitation on Diesel using Optical Extinction
Lockett, R. D., Fatmi, Z., Kuti, O. (2015). An Investigation into the Effect of Hydrodynamic Cavitation on Diesel using Optical Extinction. Journal of Physics: Conference Series, 656(1), article number 012091. doi: 10.1088/1742-6596/656/1/012091
Abstract
A conventional diesel and paraffinic-rich model diesel fuel were subjected to sustained cavitation in a custom-built high-pressure recirculation flow rig. Changes to the spectral extinction coefficient at 405 nm were measured using a simple optical arrangement. The spectral extinction coefficient at 405 nm for the conventional diesel sample was observed to increase to a maximum value and then asymptotically decrease to a steady-state value, while that for the paraffinic-rich model diesel was observed to progressively decrease. It is suggested that this is caused by the sonochemical pyrolysis of mono-aromatics to form primary soot-like carbonaceous particles, which then coagulate to form larger particles, which are then trapped by the filter, leading to a steady-state spectral absorbance.
Publication Type: | Article |
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Subjects: | T Technology > TJ Mechanical engineering and machinery |
Departments: | School of Science & Technology > Engineering |
SWORD Depositor: |
Available under License Creative Commons: Attribution 3.0.
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