Fuel Reforming for Scramjet Thermal Management and Combustion Optimization

Daniau, Emeric; Bouchez, Marc; Herbinet, Olivier; Marquaire, Paul-Marie; Gascoin, Nicolas; Gillard, Philippe

doi:10.2514/6.2005-3403

Cited by 34 publications

(23 citation statements)

References 9 publications

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“…In addition to the long established cooperation with ONERA 4 5 on this topic, MBDA launched two small-scale programs in collaboration with French laboratories and universities 6 . The present paper presents the status of one of them : the COMPARER project.…”

Section: Introductionmentioning

confidence: 99%

Measurements for Fuel Reforming for Scramjet Thermal Management and Combustion Optimization: Status of the COMPARER Project

Gascoin

Gillard

Bernard

et al. 2006

14th AIAA/AHI Space Planes and Hypersonic Systems and Technologies Conference

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Section: Introductionmentioning

confidence: 99%

Measurements for Fuel Reforming for Scramjet Thermal Management and Combustion Optimization: Status of the COMPARER Project

Gascoin

Gillard

Bernard

et al. 2006

14th AIAA/AHI Space Planes and Hypersonic Systems and Technologies Conference

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“…They aim at understanding the pyrolysis process and they often try to study the pyrolysis under conditions, which limit the coke formation (temperatures lower than 1000 K, low residence time, low catalytic effect of reactor material) in order to have stable test conditions. In previous papers [25], it has been shown for this purpose the need to use high operating temperature, up to 1500 K. This allows to produce interesting species for the combustion, such as hydrogen and ethylene. These ones are highly hydrogenated species (with a Hydrogen/Carbon mass ratio of respectively infinite and 0.25) compared to initial n-dodecane (H/C ratio of 0.15).…”

mentioning

confidence: 99%

Characterisation of coking activity during supercritical hydrocarbon pyrolysis

Gascoin¹,

Gillard²,

Bernard³

et al. 2008

Fuel Processing Technology

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104

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The active cooling of the Supersonic Combustion Ramjet engine, for hypersonic flight purpose, is ensured thanks to fuel, n-dodecane for the present study. The endothermic fuel pyrolysis, starting above 800 K, could generate an unwanted coke formation. Experimental tests up to 1125 K and between 1 MPa and 6 MPa have been performed on the hydrocarbon fuel pyrolysis to evaluate the coking activity. 316L stainless steel, low carbon steel and titanium reactors have been considered. A witness of the coke formation, based on its thermal insulation and pressure loss effects, has been found. A correlation between methane production and coke deposit was found. The coke has been studied with Scanning Electron Microscope (SEM), Energy Dispersion Spectroscopy (EDS), X-ray diffractometer and Fourier Transform Infrared (FTIR) spectroscopy. The porosity, the density and the permeability of the coke have been estimated.

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“…By the coupling of NANCY and SENKIN, engineering computations allow the changes of physical properties of the fuel (modeled as C 12 H 26 , for example) with its chemical decomposition to be taken into account [22]. Some projects investigate the capability of equipping such cooled structures with speci¦c measurements on the decomposed coolant [23].…”

Section: Ptah-socar Tubementioning

confidence: 99%

Ptah-socar fuel-cooled composite materials structure

Bouchez¹,

Beyer²

2009

Progress in Propulsion Physics

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One of the key points for the development of dual-mode ramjets operating up to Mach 8 or more is the mastery of fuel-cooled composite materials structures, which are needed, at least, for the combustion chamber. MBDA France and EADS ST have been working on the development of a particular technology for such structures taking advantage of the background of MBDA France in the ¦eld of dual-mode ramjet and fuel-cooled structures and of ASTRIUM-EADS ST in the ¦eld of high-temperature composite materials. They have developed an innovative technology for advanced monobloc cooled C/C/SiC structures. The paper gives an updated status of the development of Paroi Tiss‚ ee Application Hypersonique ¡ Simple Operational Composite for Advanced Ramjet (PTAH-SOCAR) technology, including test results, and presents some results obtained during system and demonstrator studies.

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Fuel Reforming for Scramjet Thermal Management and Combustion Optimization

Abstract: λ : thermal conductivity (W.m-1 .K-1) ρ : density (kg.m-3) P C : heat capacity (J.kg-1 .K-1) η : viscosity (Pa.s) I.

Cited by 34 publications

References 9 publications

Measurements for Fuel Reforming for Scramjet Thermal Management and Combustion Optimization: Status of the COMPARER Project

Measurements for Fuel Reforming for Scramjet Thermal Management and Combustion Optimization: Status of the COMPARER Project

Characterisation of coking activity during supercritical hydrocarbon pyrolysis

Ptah-socar fuel-cooled composite materials structure

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