Comparison of spray combustion for Jet-A and diesel in a constant volume chamber

Wei Jing, William Roberts, Tiegang Fang

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

Abstract

This work investigates the effect of ambient conditions on jet-A spray combustion in an optical constant volume combustion chamber. Based on the data of jet-A and diesel fuel data obtained from previous experiments, a comparison between jet-A and diesel was conducted in terms of spatially integrated flame intensity, flame area, and flame intensity per pixel. Trasient and quasi-steady state analyses were carried out in this work. The transient analysis was conducted using high-speed imaging of both OH∗ chemiluminescence and natural luminosity (NL). For quasi-steady state analysis, three emissions (OH∗, narrow-band flame emission at 430nm (Band A) and at 470 nm (Band B)) were captured using an ICCD camera. From the transient analysis, jet-A flame shares a similar trend of flame development to diesel flame during the entire combustion process, featuring a narrow region of NL and a wide region of OH∗ with the increase of ambient temperature and O2 concentration. The soot is oxidized more quickly for jet-A at the end of combustion by comparing the area of NL, especially under high O2 concentration condition. From the quasi-steady state results compared to the ones of diesel flame, intensity of OH∗ is higher for jet-A under low O2 concentration but lower under high O2 concentration; intensity of NL is higher for jet-A in all the experimental conditions, but the intensities of Band A and Band B are lower for jet-A in most experimental conditions.

Original languageEnglish (US)
Title of host publicationFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
PublisherCombustion Institute
Pages477-482
Number of pages6
ISBN (Electronic)9781629937199
StatePublished - Jan 1 2013
EventFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013 - Clemson, United States
Duration: Oct 13 2013Oct 16 2013

Publication series

NameFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013

Other

OtherFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
CountryUnited States
CityClemson
Period10/13/1310/16/13

ASJC Scopus subject areas

  • Mechanical Engineering
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

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