Impact of alternative fuels on emissions characteristics of a gas turbine engine - Part 1: Gaseous and particulate matter emissions

Prem Lobo, Lucas Rye, Paul I. Williams, Simon Christie, Ilona Uryga-Bugajska, Christopher W. Wilson, Donald E. Hagen, Philip D. Whitefield, Simon Blakey, Hugh Coe, David Raper, Mohamed Pourkashanian

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Growing concern over emissions from increased airport operations has resulted in a need to assess the impact of aviation related activities on local air quality in and around airports, and to develop strategies to mitigate these effects. One such strategy being investigated is the use of alternative fuels in aircraft engines and auxiliary power units (APUs) as a means to diversify fuel supplies and reduce emissions. This paper summarizes the results of a study to characterize the emissions of an APU, a small gas turbine engine, burning conventional Jet A-1, a fully synthetic jet fuel, and other alternative fuels with varying compositions. Gas phase emissions were measured at the engine exit plane while PM emissions were recorded at the exit plane as well as 10 m downstream of the engine. Five percent reduction in NOx emissions and 5-10% reduction in CO emissions were observed for the alternative fuels. Significant reductions in PM emissions at the engine exit plane were achieved with the alternative fuels. However, as the exhaust plume expanded and cooled, organic species were found to condense on the PM. This increase in organic PM elevated the PM mass but had little impact on PM number.

Original languageEnglish
Pages (from-to)10805-10811
Number of pages7
JournalEnvironmental Science and Technology
Volume46
Issue number19
DOIs
Publication statusPublished - 2 Oct 2012

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

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