Mass and size distribution measurement of particulates from a gas turbine combustor using modern mobility analyzer and particle sizer
Sevcenco, Y. A., Bowen, P. J., Johnson, M. P., Hilton, M., Welch, M. A. and Miller, M. N. (2009) Mass and size distribution measurement of particulates from a gas turbine combustor using modern mobility analyzer and particle sizer. In: 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit and 7th International Energy Conversion Engineering Conference, August 2009, Denver, Colorado, USA.
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Official URL: http://www.aiaa.org/content.cfm?pageid=534&id=1810
SMPS and DMS500 analysers were used to measure particulate size distributions in the exhaust of a fully annular aero gas turbine engine at two operating conditions to compare and analyse sources of discrepancy. A number of different dilution ratio values were utilised for the comparative analysis, and a Dekati hot diluter operating at a temperature of 623°K was also utilised to remove volatile PM prior to measurements being made. Additional work focused on observing the effect of varying the sample line temperatures to ascertain the impact. Explanations are offered for most of the trends observed, although a new, repeatable event identified in the range from 417°K to 423°K – where there was a three order of magnitude increase in the nucleation mode of the sample – requires further study.
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