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Novel Applications Of Electrostatic Precipitators In Coal - Biomass Combustion Systems, He Jing
Novel Applications Of Electrostatic Precipitators In Coal - Biomass Combustion Systems, He Jing
McKelvey School of Engineering Theses & Dissertations
Pulverized coal combustion is an important source of electricity production worldwide. However, it is also a primary air pollution emission (particulate matters, mercury, etc.) source. Electrostatic precipitators (ESPs) are widely used in coal-fired power plants to control particulate matters. This dissertation contributes in the study of the pollution formation from coal combustion processes and pollution control based on ESPs in the following three aspects: (1) explore novel applications of ESPs in particulate matters and mercury removal; (2) develop and evaluate an compact electrostatic precipitator for sampling purpose, which can support offline fly ash particle analysis; (3) study the submicrometer particle …
Smoke Aerosol Characterization For Spacecraft Fire Detection Systems, Marit Elisabeth Meyer
Smoke Aerosol Characterization For Spacecraft Fire Detection Systems, Marit Elisabeth Meyer
McKelvey School of Engineering Theses & Dissertations
Appropriate design of fire detection systems requires knowledge of both the expected fire signature and the background aerosol levels. Terrestrial fire detection systems have been developed based on extensive study of terrestrial fires. Unfortunately there is no corresponding data set for spacecraft fires and consequently the fire detectors in current spacecraft were developed based upon terrestrial designs. There are a number of factors that affect the smoke particle size distribution in spacecraft fires. In low gravity, buoyant flow is negligible which causes particles to concentrate at the smoke source, increasing their residence time, and increasing the transport time to smoke …