Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Dynamic Thermo-physical Characteristics of High Temperature Gaseous Hydrocarbon Fuel Thermal Power Generation for Regeneratively Cooled Hypersonic Propulsion System

Version 1 : Received: 18 December 2019 / Approved: 19 December 2019 / Online: 19 December 2019 (05:30:03 CET)

How to cite: Xu, Q.; Li, H.; Feng, Y.; Li, X.; Lin, C.; Zhou, C. Dynamic Thermo-physical Characteristics of High Temperature Gaseous Hydrocarbon Fuel Thermal Power Generation for Regeneratively Cooled Hypersonic Propulsion System. Preprints 2019, 2019120240 (doi: 10.20944/preprints201912.0240.v1). Xu, Q.; Li, H.; Feng, Y.; Li, X.; Lin, C.; Zhou, C. Dynamic Thermo-physical Characteristics of High Temperature Gaseous Hydrocarbon Fuel Thermal Power Generation for Regeneratively Cooled Hypersonic Propulsion System. Preprints 2019, 2019120240 (doi: 10.20944/preprints201912.0240.v1).

Abstract

The aspirated hypersonic air-breathing propulsion system requires a large amount of power generation, but its special structure makes it impossible to adopt common power generation methods. The high-temperature gaseous hydrocarbon fuel thermal power generation (TPG) system was developed to solve the power generation problem for hypersonic air-breathing propulsion system. But off-design operating conditions of the hypersonic propulsion system results in a more complex process for both propulsion system and the TPG system. To better analyzing the dynamic thermos-physical characteristics of hypersonic airbreathing propulsion system considering thermal-mechanical coupling process among cooling/TPG system, a dynamic analytical model was developed, and the dynamic thermos-physical characteristics of TPG system under different off-design working conditions were conducted. It can be concluded from the analytical results that the dynamic process of thermos-physical characteristics shows a complex trend under the flight Mach number and fuel equivalence ratio off-design working conditions. Such complexity of dynamic characteristics brings difficulties in fuel supply for the propulsion system.

Subject Areas

dynamic thermos-physical characteristics; hydrocarbon fuel; thermal power generation (TPG); thermo-mechanical coupling effect; hypersonic air-breathing propulsion

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