Experimental investigations of the influence of pressure on critical extinction conditions of laminar nonpremixed flames burning condensed hydrocarbon fuels, jet fuels, and surrogates

2015 ◽  
Vol 35 (1) ◽  
pp. 937-943 ◽  
Author(s):  
Ryan K. Gehmlich ◽  
Austin Kuo ◽  
Kalyanasundaram Seshadri
Keyword(s):  
Hydrocarbon Fuels ◽  
Experimental Investigations ◽  
Jet Fuels ◽  
Nonpremixed Flames ◽  
Critical Extinction

Fuel-Cooled Thermal Management for Advanced Aero Engines

2002 ◽  
Author(s):  
He Huang ◽  
Louis J. Spadaccini ◽  
David R. Sobel
Keyword(s):  
Heat Exchanger ◽  
Thermal Management ◽  
Fuel Mixture ◽  
High Heat ◽  
Hydrocarbon Fuels ◽  
Pollutant Emissions ◽  
Jet Fuels ◽  
Successful Implementation ◽  
Reaction Products ◽  
Aero Engines

Fuel-cooled thermal management, including endothermic cracking and reforming of hydrocarbon fuels, is an enabling technology for advanced aero engines and offers potential for cycle improvements and pollutant emissions control in gas-turbine engine applications. The successful implementation of this technology is, however, predicated on the use of conventional multi-component hydrocarbon fuels and an understanding of the combustion characteristics of the reformed fuel mixture. The objective of this research is to develop and demonstrate the technologies necessary for utilizing conventional multi-component hydrocarbon fuels for fuel-cooled thermal management, including the development of the endothermic potential of JP-7 and JP-8+100, a demonstration of the combustion of supercritical/endothermic fuel mixtures, and conceptual design of a fuel-air heat exchanger. The ability to achieve high heat sinks with existing jet fuels (e.g., JP-7 and JP-8+100) was demonstrated with a bench-scale test rig operating under flow conditions and passage geometries simulative of practical heat exchangers for aircraft and missile applications. Key measurements included fuel heat sink, reaction products, and extent of conversion. Full-scale sector rig tests were conducted to characterize the combustion and emissions of supercritical jet fuel, and demonstrate the safety and operability of the fuel system, including a fuel-air heat exchanger.

scholarly journals THE PROBLEMS OF BIOPOLLUTION WITH JET FUELS AND THE WAY OF ACHIEVING SOLUTION

Transport ◽  
2008 ◽  
Vol 23 (3) ◽  
pp. 253-257 ◽  
Author(s):  
Sergey Boychenko ◽  
Irina Shkilnuk ◽  
Vladimir Turchak
Keyword(s):  
Hydrocarbon Fuel ◽  
Hydrocarbon Fuels ◽  
Jet Fuels ◽  
Classification Methods ◽  
Biological Stability ◽  
Biological Contamination ◽  
Microbiological Stability ◽  
The Way

The article considers and presents the classification methods of identifying and assessing petroleum biological contamination and techniques in maintaining biological stability of hydrocarbon fuel. The article focuses on analysis, arrangement and classification of the methods for identifying petroleum biological contamination and maintaining microbiological stability of hydrocarbon fuels.

Fuel-Cooled Thermal Management for Advanced Aeroengines

2004 ◽  
Vol 126 (2) ◽  
pp. 284-293 ◽  
Author(s):  
He Huang ◽  
Louis J. Spadaccini ◽  
David R. Sobel
Keyword(s):  
Heat Exchanger ◽  
Thermal Management ◽  
Fuel Mixture ◽  
High Heat ◽  
Hydrocarbon Fuels ◽  
Pollutant Emissions ◽  
Jet Fuels ◽  
Successful Implementation ◽  
Reaction Products ◽  
Aero Engines

Fuel-cooled thermal management, including endothermic cracking and reforming of hydrocarbon fuels, is an enabling technology for advanced aero engines and offers potential for cycle improvements and pollutant emissions control in gas turbine engine applications. The successful implementation of this technology is, however, predicated on the use of conventional multicomponent hydrocarbon fuels and an understanding of the combustion characteristics of the reformed fuel mixture. The objective of this research is to develop and demonstrate the technologies necessary for utilizing conventional multicomponent hydrocarbon fuels for fuel-cooled thermal management, including the development of the endothermic potential of JP-7 and JP-8+100, a demonstration of the combustion of supercritical/endothermic fuel mixtures, and conceptual design of a fuel-air heat exchanger. The ability to achieve high heat sinks with existing jet fuels (e.g., JP-7 and JP-8+100) was demonstrated with a bench-scale test rig operating under flow conditions and passage geometries simulative of practical heat exchangers for aircraft and missile applications. Key measurements included fuel heat sink, reaction products, and extent of conversion. Full-scale sector rig tests were conducted to characterize the combustion and emissions of supercritical jet fuel, and demonstrate the safety and operability of the fuel system, including a fuel-air heat exchanger.

The Effect of Benzene on Bluegill Olfactory Lamellae

1985 ◽  
Vol 43 ◽  
pp. 574-575
Author(s):  
D.R. Mattie ◽  
J.W. Fisher
Keyword(s):  
Surface Morphology ◽  
Soluble Fraction ◽  
Lepomis Macrochirus ◽  
Sublethal Concentration ◽  
Water Soluble ◽  
Major Constituent ◽  
Jet Fuels ◽  
Aquatic Biota ◽  
Normal Surface ◽  
Cacodylate Buffer

Jet fuels such as JP-4 can be introduced into the environment and come in contact with aquatic biota in several ways. Studies in this laboratory have demonstrated JP-4 toxicity to fish. Benzene is the major constituent of the water soluble fraction of JP-4. The normal surface morphology of bluegill olfactory lamellae was examined in conjunction with electrophysiology experiments. There was no information regarding the ultrastructural and physiological responses of the olfactory epithelium of bluegills to acute benzene exposure.The purpose of this investigation was to determine the effects of benzene on the surface morphology of the nasal rosettes of the bluegill sunfish (Lepomis macrochirus). Bluegills were exposed to a sublethal concentration of 7.7±0.2ppm (+S.E.M.) benzene for five, ten or fourteen days. Nasal rosettes were fixed in 2.5% glutaraldehyde and 2.0% paraformaldehyde in 0.1M cacodylate buffer (pH 7.4) containing 1.25mM calcium chloride. Specimens were processed for scanning electron microscopy.

Experimental investigations of the use of cartilage in tympanic membrane reconstruction

2000 ◽  
Vol 21 (3) ◽  
pp. 322-328 ◽  
Author(s):  
T ZAHNERT ◽  
K HUTTENBRINK ◽  
D MURBE ◽  
M BORNITZ
Keyword(s):  
Tympanic Membrane ◽  
Experimental Investigations
Sign in / Sign up

Export Citation Format

Share Document