The influence of soot nanoparticles on the micro/macro-scale behaviour of coalescing filters
MetadataShow full item record
This work examines the filtration of soot-in-oil colloid aerosols,utilising both whole filter testing andsingle fibre force measurements.It was found that the presence of soot increases the equilibriumpressure drop of coal escing filters subject to discontinuous operation;such as those used in enginecrank case ventilation. We have found that this pressure drop increase may be explained by the increase in effective oil viscosity caused by the presence of soot, but that this may not delay the onset of drainage,as the soot was found not to increase droplet displacement forces. Soot accumulation in the filter has been observed, on the same order of magnitude as could be expected due to physical deposition mechanisms
Showing items related by title, author, creator and subject.
Bredin, Arne; O'Leary, Rebecca; Mullins, Benjamin (2012)This work has investigated the impact of different oil ageing mechanisms which typically occur in diesel vehicles (thermooxidative breakdown and particle contamination) on engine lubricant properties and their subsequent ...
Bredin, Arne; Mullins, B. (2013)Due to increasingly stringent environmental regulations, aerosols produced in engine crankcases (blow - by gases, soot, wear particles, oil droplets) must be redirected into the air intake of the engine, where they are ...
Thermogravimetric analysis of carbon black and engine soot - Towards a more robust oil analysis methodBredin, A.; Larcher, A.; Mullins, Benjamin (2011)This work examined the thermal behaviour of diesel engine produced soot and commercial carbon black using thermogravimetric analysis (TGA). It was found that during TGA analysis of the carbon matrices (at a temperature ...