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The working process of an advanced aeroengine such as scramjet with endothermic hydrocarbon fuel cooling is a chemical recuperative cycle. The design of cooling channel in terms of engine real working conditions is very important for the chemical recuperation process. To study the effects of channel aspect ratio (AR) on chemical recuperation process of advanced aeroengines, three dimensional model...
The working process of scramjet with regenerative cooling, which was actually the chemical recuperation process, was analyzed in view of energy cascade utilization. The indirect combustion was realized through pyrolysis reaction of fuel. The relative yields of thermal exergy obtained by indirect combustion have been predicted both assuming an ideal pyrolysis reaction and using the experimental results...
The thermodynamic cycle of an endothermic hydrocarbon fuel cooled scramjet is a chemical recuperation cycle. An experimental system is built, and a series of comparisons are made at different fuel cooling conditions to investigate the influence of different factors on the chemical recuperation process of endothermic reaction of hydrocarbon fuel and the law governing the chemical recuperation process...
Endothermic hydrocarbon fuel is regarded as an optimal fuel for a scramjet with regenerative cooling, which provides extra cooling through endothermic chemical conversion to avoid the severly limited cooling capacity when conventional fuels are adopted for cooling. Although endothermic cooling is proposed from the view point that the heat sink of a conventional fuel is insufficient, the heat-absorbing...
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