College of Arts and Sciences
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Browsing College of Arts and Sciences by Author "Air Science."
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Item A 2007 aircraft-based study of plumes from biomass burning origin from Mexico and Central America advected over south Texas and the western Gulf of Mexico.(2009-06-10T12:57:33Z) Alvarez, Sergio L.; Shauck, Maxwell Eustace.; Air Science.; Baylor University. Institute for Air Science.Biomass burning is the burning of living and dead vegetation which includes grasslands, forests, and agricultural lands (Levin, 1998). It is a global phenomenon and serves a multitude of purposes such as clearing of forests and brushland for agricultural use; control of weeds; production of charcoal; and energy production for cooking and heating (Crutzen and Andreae, 1990). The Baylor Institute for Air Science (BIAS) equipped an aircraft to measure trace gases and aerosols during two science flights in the south Texas region. One science flight was flown to collect "background" continental and marine layer air data and the other to collect data in biomass-burning smoke plumes from Mexico and Central American countries. Measurements were taken in the geographic region along the US-Mexico Border and adjacent area over the western Gulf of Mexico. Results of this study indicate that individual smoke plumes may occur episodically over the Texas border region to Mexico under prevailing southeasterly wind directions. The origin of these plumes may be diverse ranging from individual local fire emissions to medium range transport of biomass burning.Item Flight performance testing of ethanol/100LL fuel blends during cruise flight.(2008-06-05T13:56:08Z) Compton, Timothy James.; Shauck, Maxwell Eustace.; Air Science.; Baylor University. Institute for Air Science.Aviation gasoline, 100LL, is the last fuel in the U.S. containing lead. Additionally, the cost of 100LL avgas now averages close to $4.64/gal. This combination will eventually require an operational transition within the general aviation (GA) community. A contract was awarded to the Baylor Institute for Air Science to determine the feasibility of operating piston engine aircraft on all blends of ethanol and 100LL avgas during the transition period. This thesis focused on engine performance associated with multiple engine power settings on a Cessna 152 /Lycoming O-235 airframe/power plant combination. Flight performance data was collected with an engine data monitor (EDM) augmented by flight crew observations. Results indicate linear-like trends in temperature correlation through a set of pre-determined fuel blends. Engine performance limits were not exceeded during this investigation.