Polycyclic aromatic hydrocarbon (PAH)-degrading bacteria were isolated from aviation fuel contaminated soil at Inua Eyet Ikot in Ibeno, Nigeria. PAH-degrading bacteria in the contaminated soil were isolated by enrichment culture technique. Isolates with high PAH degrading potential characterized by their extensive growth on PAH-supplemented minimal salt medium were screened for their naphthalen...

Emissions from aircraft engines represent a highly complex and important issue, which is related to the risk to human health. Particles emitted in urban areas and in the vicinity of airports affect air quality and have a particularly negative impact on airport workers. The development of measurement techniques and the methodology for evaluating exhaust emissions have allowed for the elaboration...

The effect of Alumina nanoparticle size on thermophysical properties, heat transfer performance and pressure loss characteristics of Aviation Turbine Fuel (ATF)-Al2O3 nanofluids is studied experimentally for the proposed application of regenerative cooling of semi-cryogenic rocket engine thrust chambers. Al2O3 particles with mean diameters of 50 nm or 150 nm are dispersed in ATF. At 50C and 0.3...

Changing aircraft operational procedures is one strategy that can be used to reduce fuel burn and mitigate environmental impacts of aviation in relatively short timeframes with existing aircraft types. This study quantifies the fuel burn and emissions reduction potential of delayed deceleration approaches, where the aircraft is kept fast and in clean aerodynamic configuration for as long as pos...

v PREFACE Ever since the dawn of civilization, it has been man's dream and wish to fly. This dream became reality when the Wright brothers first took to the sky. To be able to humbly contribute to further technological advancement of the aerospace industry is a dream come true. Due to the increasingly more aggressive competition in the aviation industry, many new concepts were developed. One of...

Sewage sludge, an abundant and problematic organic waste, was successfully converted into sustainable jet fuel range hydrocarbons (C8-C16). sludge pre-conditioned processed through a Thermo-Catalytic Reforming (TCR) system (2 Kg/h) at 450 ºC pyrolysis 700 post-reforming temperature to produce biocrude oil. The bio-crude oil subsequently conditioned upgraded via consecutive two-step hydroprocess...

A peak-seeking control algorithm for real-time trim optimization for reduced fuel consumption has been developed by researchers at the National Aeronautics and Space Administration (NASA) Dryden Flight Research Center to address the goals of the NASA Environmentally Responsible Aviation project to reduce fuel burn and emissions. The peak-seeking control algorithm is based on a steepest-descent ...