Influence of intake CO2 charge dilution on the performance and emissions of a diesel engine fueled with diesel-biodiesel-ethanol fuel

H. Tse, Chun Wah Leung, Chun Shun Cheung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


CO2 was used to dilute the intake air of a 4-cylinder DI diesel engine fuelled by diesel-biodiesel-ethanol (DBE) blends to reduce NOx while minimizing the adverse impact on particulate emissions at high engine load. The results included brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), combustion characteristics, brake specific NOx, brake specific PM mass and particle number emissions for diesel-biodiesel blended with 5%, 10% and 20% ethanol with intake CO2 of 1.5%, 3% and 4.5%, tested at steady speed of 1800 rev/min under high engine load of 0.58 MPa. It was found that combined effect of DBE blends with intake CO2 dilution has marginal effects on brake specific fuel consumption and brake thermal efficiency, significantly reduced NOx emission while slightly increased particulate emissions.
Original languageEnglish
Title of host publicationProceedings of the 9th Asia-Pacific Conference on Combustion, ASPACC 2013
PublisherKorean Society of Combustion
Publication statusPublished - 1 Jan 2013
Event9th Asia-Pacific Conference on Combustion, ASPACC 2013 - Gyeongju, Korea, Republic of
Duration: 19 May 201322 May 2013


Conference9th Asia-Pacific Conference on Combustion, ASPACC 2013
Country/TerritoryKorea, Republic of

ASJC Scopus subject areas

  • Environmental Engineering

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