Efficient utilization of heat sink of hydrocarbon fuel for regeneratively cooled scramjet

Development and Preliminary Validation of A Thermal Analysis Method for Hydrocarbon Regenerative-cooled Supersonic Combustor

“…In some previous researches [10][11][12], several experimental results based lumped global models for describing hydrocarbon cracking were introduced. However, these lumped mechanisms are often short of secondary reactions and have similar limitations as the precondition they can be used is that the fuel can only be mildly cracked or the conversion rates should not exceed 20% or so.…”

Modeling an Active and Passive Thermal Protection System for a Hypersonic Vehicle

“…Bao et al 8 model an active cooling system for a scramjet engine utilizing hydrocarbon fuel. Only the scramjet is considered, not the entire vehicle.…”

“…Three other studies have computed heat transfer but did not optimize the TPS; they are by Bolender and Doman, 2 Zhang et al 6 and Gogu et al 7 In all six of these previous studies the heat transfer was computed only at one location (the forward stagnation point) and only a passive TPS was considered; active cooling using the liquid fuel was not considered. Some other studies did not consider an entire vehicle, but only computed the heat transfer from a scramjet engine alone (Bao et al, 8 Zhang et al 9 and Doman 10 ). They did consider active cooling of the engine by the liquid fuel.…”

“…For the active cooling system, fuel usually acts as the cooling agent in the heat exchangers. 8,9,[11][12][13] Recent work by Doman 10,14 investigates the system-level architecture of an active cooling system on a generic, turbojet-powered aircraft. Two main types of configurations for the active cooling system exist.…”

Numerical study of supercritical-pressure fluid flows and heat transfer of methane in ribbed cooling tubes

“…The early studies on supercritical-pressure fluid flows and heat transfer focused mainly on water, carbon dioxide, hydrogen, and heavy hydrocarbon fuels [1][2][3][4][5][6][7][8][9][10][11][12][13], because of their practical/potential applications in nuclear reactors, refrigeration, aerospace propulsion and industrial power-generation systems. In recent years, because of the renewed interest in using cryogenic methane as an alternative propellant in aerospace propulsion systems [14,15], many studies on the supercritical-pressure fluid flows and heat transfer of cryogenic methane have been carried out, intended for fundamental understanding and practical applications of the regenerative engine cooling technology [16][17][18][19][20][21][22].…”