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Evaluation of fuel vapor turbine capacity for doing work onboard for a hydrocarbon fueled scramjet

  • School of Energy Science and Engineering, Harbin Institute of Technology
  • Beijing Power Machinery Institute

Research output: Contribution to journalArticlepeer-review

Abstract

To evaluate the fuel vapor capacity for doing work in fuel vapor turbopumpfeeding system, n-decane was selected as surrogate fuel and experimental tests were firstly carried out to discover the components information of cracked fuel vapor at various thermophysical conditions. The thermophysical properties of real fuel vapor were then calculated by Soave-Redlich-Kwong (SRK) equation of state. At last, the isentropic enthalpy drop of real fuel vapor was calculated. With an initial temperature of 950 K and an initial pressure over 3 MPa, an isentropic enthalpy drop of 110 kJ/kg is available when the expansion ratio is 2, which indicates that strong capacity for doing work can be achieved.

Original languageEnglish
Pages (from-to)1708-1712
Number of pages5
JournalTuijin Jishu/Journal of Propulsion Technology
Volume34
Issue number12
StatePublished - Dec 2013
Externally publishedYes

Keywords

  • Fuel vapor turbine
  • Hydrocarbon fuels
  • Isentropic enthalpy drop
  • Scramjet

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