Optimization of injection pressure and injection timing on fuel sprays, engine performances and emissions on a developed DI 20c biodiesel engine prototype

Bambang Sudarmanta*, Alham A.K. Mahanggi, Dori Yuvenda, Hary Soebagyo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Biodiesel, as a renewable fuel that has the potential to replace diesel fossil fuels. With properties in the form of viscosity, density, and surface tension, which are higher than diesel fossil fuel, biodiesel produces poor spray characteristics, and also the high cetane number and oxygen content so that the ignition delay is shorter causes the start of combustion will shift more forward, therefore need to improve injection parameters including injection pressure and timing. The aim of this research is to get the optimal injection parameter optimization so as to improve engine performances and emissions. The method used is to increase the fuel injection pressure from 200 to 230 kg/cm2 and the injection timings were retarded from 22°to 16°BTDC. The results show that increasing injection pressure can improve spray characteristics as indicated by shorter penetration and smaller spray diameter of 30% and 9.8%, respectively and increase in spray spread angle of 21.9%. Then the optimization of engine performances and emissions, obtained at an injection pressure of 230 kg/cm2 and injection timing of 16°BTDC with an increase of power and thermal efficiency of 3.9% and 13.9%, respectively and reduction in smoke emissions of 45.2% at high load.

Original languageEnglish
Pages (from-to)827-838
Number of pages12
JournalInternational Journal of Heat and Technology
Volume38
Issue number4
DOIs
Publication statusPublished - Dec 2020

Keywords

  • Biodiesel
  • Emissions
  • Injection pressure
  • Injection timing
  • Performances

Fingerprint

Dive into the research topics of 'Optimization of injection pressure and injection timing on fuel sprays, engine performances and emissions on a developed DI 20c biodiesel engine prototype'. Together they form a unique fingerprint.

Cite this