Intercooling effects of methanol on turbocharged diesel engine performance and exhaust emissions

Takeshi Saito*, Yasuhiro Daisho, Yasutoshi Aoki, Naokazu Kawase

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


From the viewpoint of utilizing methanol fuel in an automotive turbocharged direct-injection diesel engine, an intercooling system supplying liquid methanol has been devised and its effects on engine performance and exhaust gas emissions have been investigated. With an electronically controlled injector in this system, methanol as a supplementary fuel to diesel fuel can be injected into the intake pipe in order to intercool a hot air charge compressed by the turbocharger. It has been confirmed that especially at heavy load conditions, methanol-intercooling can yield a higher thermal efficiency, and lower NOx and smoke emissions simultaneously, compared with three other cases without using methanol: natural aspiration and the cases with and without an ordinary intercooler. However, methanol fueling must be avoided at lower loads since sacrifices in efficiency and hydrocarbon emissions are inevitably involved.

Original languageEnglish
Title of host publicationSAE Technical Papers
Publication statusPublished - 1984
EventInternational Off-Highway and Powerplant Congress and Exposition - Milwaukee, WI
Duration: 1984 Sept 101984 Sept 13


OtherInternational Off-Highway and Powerplant Congress and Exposition
CityMilwaukee, WI

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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