Comparison of the Combustion Performance of Shell Umf, Grade C, Mil-F-5624c, Grade Jp-5, Fuels in a Heavy-Duty Xrj47-W-9 Ram-Jet Engine
Comparison of the Combustion Performance of Shell Umf, Grade C, Mil-F-5624c, Grade Jp-5, Fuels in a Heavy-Duty Xrj47-W-9 Ram-Jet Engine

Author: W. G. Ranscht

Publisher: BiblioGov

Published: 2013-07

Total Pages: 36

ISBN-13: 9781289264932

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Comparable combustion performance data for Shell UMF, grade C, and MIL-F-5624C, grade JP-5, fuels were obtained using a heavy-duty version of the XRJ47-W-9 ram-jet engine operated in a 2.75 Mach number free-jet facility. Data were obtained for the two fuels over a range of fuel-air ratios, engine airflows, and engine-inlet temperatures. The test conditions were selected to provide combustor-inlet temperatures. The test conditions were selected to provide combustor-inlet conditions approximately representative of those which would be encountered over a range of altitudes and flight Mach numbers. The variation of combustion efficiency with fuel-air ratio for the two fuels is compared at the several inlet conditions. The pilot-burner ignition and operating limits with both fuels are also included. In general, the combustion efficiency with Shell UMF, grade C, fuel was 1 to 4 points lower than with MIL-F-5624C, grade JP-5, fuel.

Preliminary Evaluation of Hi-Cal-3, Hef-2, and a Solution of Pentaborane - JP-4 Fuel in a 1/4-sector of Annular Turbojet Combustor
Preliminary Evaluation of Hi-Cal-3, Hef-2, and a Solution of Pentaborane - JP-4 Fuel in a 1/4-sector of Annular Turbojet Combustor

Author: W. B. Kaufman

Publisher:

Published: 1957

Total Pages: 21

ISBN-13:

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A brief combustion study of three boron-containing fuels was made in a 1/4 sector of an annular turbojet combustor. The three fuels were Hi-Cal-3, HEF-2 (primarily propylpentaborane), and a solution of 63 percent by weight pentaborane in JP-4 fuel. The combustion efficiencies of the three fuels were between 90 and 95 percent. A photographic comparison of deposits in the combustor is presented.

Effect of JP-8 Fuel on Material-Handling Engines
Effect of JP-8 Fuel on Material-Handling Engines

Author:

Publisher:

Published: 1992

Total Pages: 101

ISBN-13:

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The effect of MIL-T-83133C grade JP-8 fuel, with respect to MIL-F46162C 1% S DF-2, was established for Army Material Handling Equipment clean-bum diesel engines. The areas investigated included emissions (gaseous and particulate), power, performance, and durability. The engines revealed reduced emissions utilizing JP-8, with an average decrease in power at 5 percent and an increase in fuel consumption of 2 percent. The durability of an Isuzu C-240 engine with JP-8 was enhanced relative to the MIL-F46162C fuel. Rough-terrain forklifts were evaluated for fuel consumption and power availability while utilizing JP-8 fuel. The results indicated an average 4-percent increase in fuel consumption and a 3-percent mean decrease in vehicular performance ... MIL-T-83133C, JP-8, MIL-F-46162C, Emissions, Power, performance, Durability, Clean-Burn diesel engines, Forklift, Isuzu C-240, Deutz F3L912W, Deutz F4L912W, Perkins 4.154, Particulate, M4K, M6K, MIOA, RTFLT, VRRTFLT, Rough terrain, Acceleration, Fuel consumption, Load placement, Speed on grade.

Preliminary Report on Flight Tests of an Airplane Having Exhaust-heated Wings
Preliminary Report on Flight Tests of an Airplane Having Exhaust-heated Wings

Author: Lewis A. Rodert

Publisher:

Published: 1941

Total Pages: 42

ISBN-13:

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Flights have been made with an airplane in icing conditions in order to test the effect of exhaust heat applied to the wings as a means of preventing ice formations. Other ice-prevention equipment, including an exhaust gas-heated pitot-static head, hot-air-heated windshield, and an inflatable de-icer of recent design, were also tested.