Effects of a Combination with Supercharging and EGR on Biodiesel Combustion


The present study investigated the effects of combining supercharging and EGR in the operation of a small single cylinder DI diesel engine. The experiments used coconut oil methyl ester (CME) and a blended fuel with 60% (mass) CME and 40% 1-butanol (represented as CMEB). The boost pressures were varied from 100 kPa (naturally aspirated condition) to 130 kPa with a Roots blower type supercharger and the oxygen concentration of the intake air were changed from 21 to 16.4% using cooled EGR. The results show that the trade-off relation between the NOx and smoke emissions of the CMEB fuel improved remarkably at high EGR conditions with supercharging.CME(ココナッツ油BDF),およびCMEB(CMEと1-ブタノールとの混合燃料,質量比6:4)を用い,吸気圧を100~130 kPa,吸気酸素濃度を21~16.4%の範囲内で変化させた.その結果,高いEGR比で過給を適用した条件ではCMEBのNOxとSmokeとのトレードオフが改善された.


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  • Accession Number: 01673738
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: May 15 2018 3:05PM