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Author : Benjamin Stiegemeier
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Thermal Stability and Heat Transfer Investigation of Five Hydrocarbon Fuels written by Benjamin Stiegemeier and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jonathan Van Noord
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (731 download)
Download or read book RP-2 thermal stability and heat transfer investigation for hydrocarbon boost engines written by Jonathan Van Noord and published by . This book was released on 2010 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lucein Bagnetto
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (227 download)
Download or read book THERMAL STABILITY OF HYDROCARBON FUELS. written by Lucein Bagnetto and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: A program to investigate the effect of storage time and temperature on changes in thermal stability quality as measured by the CRC-Modified (SSF) Coker for five widely different fuel types continues to show no significant deterioration of any fuels after 36 weeks at ambient field conditions or 22 weeks at 130 F. After storage at 180 F for 36 days, four of the fuels showed no loss in thermal stability but an HF alkylate fuel containing abour 2% olefins showed a statistically significant loss of about 100 F after storage periods of 6, 18 and 36 days. Removal of dissolved oxygen (to
Author : A. C. Nixon
Publisher :
ISBN 13 :
Total Pages : 401 pages
Book Rating : 4.:/5 (227 download)
Download or read book Vaporizing and Endothermic Fuels for Advanced Engine Application written by A. C. Nixon and published by . This book was released on 1967 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigation of the feasibility of using endothermic reactions of hydrocarbons to augment the latent and sensible heat of fuels for cooling engines operating under a high mach number regime is continuing. The dehydrogenation of Decalin over a platinum/Al2O3 catalyst has been studied extensively on a laboratory scale covering the temperature region up to 1200F and pressures to 10 atms, in order to provide kinetic data for the construction of a mathematical model. Production of catalysts have turned up a number of the 536 catalysts examined that are more active than the standard Pt/Al2O3 catalyst, but no breakthrough in either activity or cost has been achieved. Further testing has shown that catalysts which demonstrate improved activity with MCH do the same with Decalin and has confirmed the observation that improved catalyst stability is associated with small pore size. Heat transfer studies in a simulated single tube fuel system have confirmed the mathematical model for the catalytic dehydrogenation of MCH up to a heat flux of 600,000 Btu/hr/sq ft. The thermodynamic and transport properties of trans-Decalin, Shelldyne and JP-7 and a bibliography of recent literature of interest are included.
Author : Lucien Bagnetto
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (412 download)
Download or read book Thermal Stability of Hydrocarbon Fuels written by Lucien Bagnetto and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reliability of a small-scale (5-ml Bomb), static thermal stability test procedure, based on optical measurements of fuel compositional changes induced by thermal stressing was established. Five aviation turbine fuels, covering a range in inherent thermal stabilities from 300F to 700F, were studied to determine the effect of storage duration in sealed drums at 40F ambient, 130F and 180F on their thermal stability quality. Four of the fuels, representing straight-run production fuels were not susceptible to deterioration at these storage temperatures through the storage periods investigated. A fifth fuel, synthetic HF alkylate, showed a maximum loss of about 100F at all storage temperatures except 40F. Susceptibility is attributed to its relatively high olefinic content (about 2 volume per cent) and the presence of possible reactive tertiary hydrogen components. Removal of dissolved oxygen to less than one part per million prior to storage prevented deterioration of the HF alkylate fuel and improved the thermal stability of the poorer quality fuels. Information was also obtained on the effects of various contaminants that might be picked up during handling and storage on thermal stability of one fuel.
Author : Lucien Bagnetto
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (412 download)
Download or read book Thermal Stability of Hydrocarbon Fuels written by Lucien Bagnetto and published by . This book was released on 1966 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reliability of a small-scale (5-ml Bomb), static thermal stability test procedure, based on optical measurements of fuel compositional changes induced by thermal stressing was established. Five aviation turbine fuels, covering a range in inherent thermal stabilities from 300F to 700F, were studied to determine the effect of storage duration in sealed drums at 40F ambient, 130F and 180F on their thermal stability quality. Four of the fuels, representing straight-run production fuels were not susceptible to deterioration at these storage temperatures through the storage periods investigated. A fifth fuel, synthetic HF alkylate, showed a maximum loss of about 100F at all storage temperatures except 40F. Susceptibility is attributed to its relatively high olefinic content (about 2 volume per cent) and the presence of possible reactive tertiary hydrogen components. Removal of dissolved oxygen to less than one part per million prior to storage prevented deterioration of the HF alkylate fuel and improved the thermal stability of the poorer quality fuels. Information was also obtained on the effects of various contaminants that might be picked up during handling and storage on thermal stability of one fuel.
Author : G. D. KITTREDGE
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book THERMAL STABILITY OF HYDROCARBON FUELS. written by G. D. KITTREDGE and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research was conducted to: (1) develop a small scale jet fuel thermal stability tester capable of operation at fuel temperatures from 300 to 650 F with samples 1 qt or less in size, and (2) study the effects of storage on thermal stability performance of JP-6 grade jet fuels and establish causes (in terms of environmental factors and fuel composition) for any adverse results observed. Three potentially useful techniques were produced: (1) a recirculating-flow dynamic method measuring deposit insulating effects around a heated surface which requires 1000 ml fuel samples, (2) a static method measuring deposit insulating effects around a heated nickel wire which requires 150 ml fuel samples, and (=0 a static method based on ch nges in fuel light transmission characteristics after heating which requires only 5-ml fuel samples. The JP-6 storage stability invesigation (1 yr) showed that 3 out of 5 test fuels did deteriorate significantly after 26 wk at 110 F in terms of CFR Fuel Coker rating, while a fourth fuel showed evidence of deterioration in one container only which is attributed to solids contamination. (Author).
Author :
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ISBN 13 :
Total Pages : 666 pages
Book Rating : 4.:/5 (318 download)
Download or read book Journal of Propulsion and Power written by and published by . This book was released on 2008 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. Ianovski
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Heat and Mass Transfer to Hydrocarbon Fuels at Thermal Decomposition in Channels of Engines written by L. Ianovski and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 710 pages
Book Rating : 4.0/5 ( download)
Download or read book 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-3850 - 02-3899 written by and published by . This book was released on 2002 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 818 pages
Book Rating : 4.E/5 ( download)
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. C. Nixon
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (227 download)
Download or read book Vaporizing and Endothermic Fuels for Advanced Engine Application. Part I. Preliminary Studies of Catalized Reactions and Thermal Stabilities of Hydrocarbon Fuels written by A. C. Nixon and published by . This book was released on 1964 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies leading toward the development of specifications for heat sink fuels for hypersonic aircraft are reported. Consideration of the effect of design parameters on the conditions under which endothermic reactions can be carried out has led to the conclusion that space velocities of 50 or higher would be necessary due to volume limitations in high-speed aircraft. Rate considerations favor catalytic reactions. Preliminary studies of the dehydrogenation of propane to propene and methylcyclohexane to toluene were made, and dehydrocyclization of various paraffins attempted. Thermal stability studies include the modification of two types of cokers to minimize contamination possibilities and improve reproducibility. Fuels may be tested at temperatures up to at least 1000F. The thermal stabilities of samples of n-dodecane, toluene and methylcyclohexane decreased in the order named. A 25 gal/hr fuel system simulation test rig which will be used for determining heat transfer coefficients, heat sinks and product compositions has been designed. (Author).
Author :
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ISBN 13 :
Total Pages : 556 pages
Book Rating : 4.F/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1993 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 578 pages
Book Rating : 4.0/5 ( download)
Download or read book 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4500 - 05-4566 written by and published by . This book was released on 2005 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. C. Nixon
Publisher :
ISBN 13 :
Total Pages : 558 pages
Book Rating : 4.:/5 (227 download)
Download or read book Vaporizing and Endothermic Fuels for Advanced Engine Application written by A. C. Nixon and published by . This book was released on 1965 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies leading toward the development of specifications for heat-sink fuels for hypersonic aircraft are reported. Heat sinks of about 2000 Btu/lb of fuel can be achieved at 1350 F by taking advantage of latent, sensible, and endothermic heat sinks. Rate considerations favor catalytic reactions. The dehydrogenation of methylcyclohexane (MCH) to toluene and hydrogen approaches the above heat sink over a platinum on alumina catalyst. Propane dehydrogenation will yield about 1500 Btu/lb, but the reaction is neither as clean nor as rapid. The thermal stabilities of molecular types generally increase in the order monocyclic aromatic, monocyclic naphthene, bicyclic naphthene, n-paraffin. Exclusion of oxygen increases the critical thermal stability temperature by about 200 F. The introduction of alkyl groups into either the cyclohexane or benzene rings increases thermal stability. A 20-gal/hr adiabatic heat exchanger-reactor system has been constructed and shakedown tests with water have been completed following the execution of a number of changes suggested by preliminary test work. Excellent heat balances have been achieved and satisfactory correlation of heat-transfer data with the literature has been found. Ignition delay data have been obtained utilizing a single-diaphragm shock tube under conditions useful for consideration in the design of supersonic combustion ramjets. Methylcyclohexane and its reaction products and propane and its reaction products have been studied in the range 1300-2700 F. Ignition delays ranged from 100-4000 microseconds under lean conditions, decreasing with temperature. (Author).
Author : A. C. Nixon
Publisher :
ISBN 13 :
Total Pages : 381 pages
Book Rating : 4.:/5 (51 download)
Download or read book Vaporizing and Endothermic Fuels for Advanced Engine Application written by A. C. Nixon and published by . This book was released on 1967 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigation of the feasibility of using endothermic reactions to augment the latent and sensible heat of fuels for cooling engines operating under a high mach number regime is continuing. Studies in the literature continue to maintain the desirability and feasibility of producing vehicles with hypersonic flight speeds and suggest some areas of advantage of hydrocarbons. Laboratory studies on the dehydrogenation over Pt/Al2O3 of a number of mixtures of naphthenes have been made including methyl-Decalin and dicyclohexyl as well as the pure components, with additional studies on Decalin. About 220 dehydrogenation catalysts have been prepared using a variety of metals and supports. Propane and an advanced jet fuel were tested as possible heat sink fuels in our fuel system simulation test reactor under thermal cracking conditions. Our packed bed reactor program included herein, has been rewritten and simplified resulting in a considerable saving in both human and computer time. The thermal stability of MCH, Decalin and a naphthenic jet fuel were all critically, but uniquely, dependent on O2 concentration in the region below about 10 ppm. The ignition delay behavior of both ethane and ethylene was found to be considerably different from other hydrocarbons in the shock tube, the ignition delay reaching a minimum in the region of E/R = 0.5 with two different temperature coefficients which are dependent upon total reactives concentration.
Author :
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ISBN 13 :
Total Pages : 670 pages
Book Rating : 4.:/5 (31 download)
Download or read book Information Circular written by and published by . This book was released on 1962 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
