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Characterization Of Plasticizer-Polymer Coatings For The Detection Of Benzene In Water Using Sh-Saw Devices, Jude Coompson
Characterization Of Plasticizer-Polymer Coatings For The Detection Of Benzene In Water Using Sh-Saw Devices, Jude Coompson
Master's Theses (2009 -)
Benzene is a constituent component of crude oil that has been classified as a carcinogen by the EPA with a maximum contamination level (MCL) of 5ppb in drinking water. However, of the aromatic compounds, benzene has one of the lowest polymer-water partition coefficients using commercially available polymers as sensor coatings, resulting in poor limits of detection. This work investigates new coating materials based on polymer/plasticizer mixtures coated onto a shear horizontal surface acoustic wave (SH-SAW) sensor to detect benzene in water. There are many polymers which are unavailable for use as a sensing polymer due to their glassy nature. The …
Development Of A Rapid Compression Controlled-Expansion Machine For Chemical Ignition Studies, John Neuman
Development Of A Rapid Compression Controlled-Expansion Machine For Chemical Ignition Studies, John Neuman
Master's Theses (2009 -)
The ability to accurately model fuel combustion processes is essential to the development of transportation, power generation, and manufacturing technology. Models describing the kinetics of chemical oxidation are readily available and highly refined for a wide range of test fuels. However, these models still suffer from high levels of uncertainty under engine-relevant conditions, largely due to a lack of consistency between published validation data. An experimental testing apparatus, known as the Rapid Compression Controlled-Expansion Machine (RCCEM) has been designed and fabricated to conduct chemical kinetic studies. The RCCEM features a pneumatically-driven, custom-designed cam, which governs the volumetric compression and expansion …