THE EFFECT OF SUPERCHARGING ON PERFORMANCE AND EMISSION CHARACTERISTICS OF COMPRESION IGNITION ENGINE WITH DIESEL-ETHANOL-ESTER BLENDS

Abstract

Biofuels like ethanol, biodiesel, have attracted attention of people worldwide and proved to be the successful fuel alternates to petroleum products. In the present investigation, the effect of supercharging is studied on the performance of a direct injection diesel engine using ethanol diesel blends with palm stearin methyl ester as additive. The performance of the engine is evaluated in terms of brake specific fuel consumption, thermal efficiency, exhaust gas temperature, un-burnt hydrocarbons, carbon monoxide, nitrogen oxide emissions, and smoke opacity. The investigation results showed that the output and torque performance of the engine with supercharging was improved in comparison with naturally aspirated engine. It is observed that the brake thermal efficiency of ethanol diesel blends was higher than that of diesel. With supercharging brake thermal efficiency is further improved. Brake specific fuel consumption of ethanol, ester and diesel blends are lower compared with diesel at full load. Further reduction in brake specific fuel consumption is observed with supercharging. Nitrous oxide formation seems to decrease with ethanol, ester and diesel blends. Hydrocarbons and carbon monoxide emissions are more with ethanol, ester and diesel blends with supercharging slight reduction in those values are observed.

Keywords

Dates

  • Submission Date2010-05-13
  • Revision Date2011-02-21
  • Acceptance Date2011-02-26

DOI Reference

10.2298/TSCI100513042J

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Volume 15, Issue 4, Pages1165 -1174