Optimization of fuel injection parameters of moringa oleifera biodiesel-diesel blend for engine-out-responses improvements

Yew Heng Teoh, Heoy Geok How, Farooq Sher, Thanh Danh Le, Hwai Chyuan Ong, Huu Tho Nguyen, Haseeb Yaqoob

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
38 Downloads (Pure)

Abstract

Biodiesel has gained popularity in diesel engines as a result of the rapid decline of fossil fuels and population growth. The processing of biodiesel from non-edible Moringa Oleifera was investigated using a single-step transesterification technique. Both fuels had their key physicochemical properties measured and investigated. In a common-rail diesel engine, the effects of MB50 fuel blend on the symmetric characteristics of engine-out responses were evaluated under five load settings and at 1000 rpm. As compared to standard diesel, MB50 increased brake thermal efficiency (BTE), and nitrogen oxides (NOx ) emissions while lowering brake specific fuel consumption (BSFC), and smoke emissions for all engine loads. A further study of injection pressure and start of injection (SOI) timing for MB50 fuel was optimized using response surface methodology (RSM). The RSM optimization resulted in improved combustion dynamics due to symmetry operating parameters, resulting in a simultaneous decrease in NOx and smoke emissions without sacrificing BTE. RSM is an efficient optimization method for achieving optimal fuel injection parameter settings, as can be deduced. As a result, a clearer understanding of the use of MB50 fuel in diesel engines can be given, allowing for the best possible engine efficiency.

Original languageEnglish
Article number982
JournalSymmetry
Volume13
Issue number6
DOIs
Publication statusPublished - 1 Jun 2021

Bibliographical note

Funding Information:
Funding: The authors would like to acknowledge Ministry of Higher Education of Malaysia and Universiti Sains Malaysia for the support through Fundamental Research Grant Scheme (FRGS)-203.PMEKANIK.6071444 (Title: Mechanism Study of Combustion and Formulation of Surrogate Biomass Producer Gas Using a CVCC System) and Universiti Sains Malaysia Research University (RUI) Grant Scheme-1001.PMEKANIK.8014136 (Title: Effect of Fuel Injection Strategies and Intake Air Supply Control on Performance, Emissions, and Combustion Characteristics of Diesel Engine Fueled with Biodiesel Blended Fuels).

Funding Information:
The authors would like to acknowledge Ministry of Higher Education of Malaysia and Universiti Sains Malaysia for the support through Fundamental Research Grant Scheme (FRGS)-203.PMEKANIK.6071444 (Title: Mechanism Study of Combustion and Formulation of Surrogate Biomass Producer Gas Using a CVCC System) and Universiti Sains Malaysia Research University (RUI) Grant Scheme-1001.PMEKANIK.8014136 (Title: Effect of Fuel Injection Strategies and Intake Air Supply Control on Performance, Emissions, and Combustion Characteristics of Diesel Engine Fueled with Biodiesel Blended Fuels).The authors would like to acknowledge the Universiti Sains Malaysia for financial support toward this study.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Alternative fuel
  • Combustion
  • Common-rail
  • Moringa biodiesel
  • Optimization
  • Renewable fuels
  • Response surface methodology
  • Sustainability

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Chemistry (miscellaneous)
  • Mathematics(all)
  • Physics and Astronomy (miscellaneous)

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