Design of an actively valved and acoustically resonant pulse combustor for pressure-gain combustion applications

Joel Lisanti, William Roberts

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

This work describes the performance and operational characteristics of a novel, actively valved, resonant pulse combustor designed for use in a pressure-gain combustion application. Three modes of operation are identified and the envelope in which the combustor will sustain resonant operation is quantified, with and without a free-stream flow imposed at the inlet. The combustor is found to be capable of operating in resonant mode with inlet valve set points from 200 Hz extending to above 290 Hz and ethylene mass flow rates from 0.1 to 0.43 g/s. The influence of inlet valve set point and fuel mass flow rate on the combustor operation is evaluated. It was found that for a given fuel mass flow rate the peak combustion chamber pressure amplitude tended to increase with decreasing valve set point frequency. For a fixed inlet valve frequency the peak combustion chamber pressure amplitude increased with increasing fuel flow rate. Also, evidence is presented indicating that the total heat release delay in the combustor is dictated by the fluid dynamic mixing induced by the inlet valve motion.

Original languageEnglish (US)
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
StatePublished - Jan 1 2016
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Publication series

Name54th AIAA Aerospace Sciences Meeting

Other

Other54th AIAA Aerospace Sciences Meeting, 2016
CountryUnited States
CitySan Diego
Period01/4/1601/8/16

ASJC Scopus subject areas

  • Aerospace Engineering

Fingerprint

Dive into the research topics of 'Design of an actively valved and acoustically resonant pulse combustor for pressure-gain combustion applications'. Together they form a unique fingerprint.

Cite this