Combustion analysis of preheated crude sunflower oil in an IDI diesel engine


BIOMASS & BIOENERGY, vol.33, no.5, pp.760-767, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 5
  • Publication Date: 2009
  • Doi Number: 10.1016/j.biombioe.2008.11.003
  • Title of Journal : BIOMASS & BIOENERGY
  • Page Numbers: pp.760-767
  • Keywords: Helianthus annus, Straight vegetable oil, IDI diesel engine, Combustion, Performance, Emissions, COMPRESSION-IGNITION ENGINE, PALM OIL, VEGETABLE-OILS, PERFORMANCE, EMISSIONS, FUEL, INJECTION, BIODIESEL


In this study, preheated crude sunflower oil (PCSO) was tested for combustion and emission properties against petroleum based diesel fuel (PBDF) in a naturally aspirated, indirect injection (IDI) engine. The cylinder gas pressure and heat release curves for PCSO at 75 degrees C were similar to those of PBDF. The ignition delays for the PCSO were longer and the start of injection timing was earlier than for PBDF. The difference in the average brake torque was a decrease of 1.36% for PCSO though this was statistically insignificant. The brake specific fuel consumption increased by almost 5% more or less in proportion to the difference in calorific value, so that the 1.06% increase in thermal efficiency was again statistically insignificant.