Active Valve Resonant Pulse Combustor for Pressure Gain Combustion Applications

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1 Scopus citations

Abstract

This work is an experimental demonstration of a novel resonant pulse combustor technology for which sustained pressure gain can be achieved at thermal equilibrium. The resonant pulse combustor employs an actively driven air inlet valve with passively modulated fuel injection such that the device operating frequency is specified by the valve set-point frequency. This configuration enables more control over the combustor operation compared to passive valve and valveless resonant pulse combustors and enables the durability necessary for consideration in practical applications. Combustor performance is characterized with measured stagnation pressure gain as a function of stagnation temperature and fuel mass flux. Steady-state stagnation pressure ratios between 1.005 and 1.025 are demonstrated for gaseous (ethylene) and liquid (gasoline) fuels at temperature ratios from 2.8 to 4.5. Baseline performance measurements for a well-studied passive valve resonant pulse combustor are presented for comparison. The proposed active valve technology provides a direct path for translation from research-type devices to practical gas turbine applications by addressing key challenges inherent of existing resonant pulse combustor technologies.
Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalJournal of Propulsion and Power
Volume38
Issue number2
DOIs
StatePublished - Feb 16 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-04-27
Acknowledged KAUST grant number(s): BAS/1/1370-01-01, CRG_R2_13_ROBE_KAUST_1
Acknowledgements: Supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research under Award No. CRG_R2_13_ROBE_KAUST_1 and by the KAUST Clean Combustion Research Center under Award No. BAS/1/1370-01-01.

ASJC Scopus subject areas

  • Mechanical Engineering
  • Space and Planetary Science
  • Fuel Technology
  • Aerospace Engineering

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