Journal of
Mechanical Engineering Research

  • Abbreviation: J. Mech. Eng. Res.
  • Language: English
  • ISSN: 2141-2383
  • DOI: 10.5897/JMER
  • Start Year: 2009
  • Published Articles: 118

Full Length Research Paper

Experimental investigation of NOx emission on croton oil – 1-butanol – diesel in compression ignition (CI) engine

Frank Lujaji
  • Frank Lujaji
  • Department of Sustainable Energy Science and Engineering, The Nelson Mandela African Institute of Science and Technology, P. O. Box 447, Tengeru-Arusha, Tanzania
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Sameer Hameer
  • Sameer Hameer
  • Department of Sustainable Energy Science and Engineering, The Nelson Mandela African Institute of Science and Technology, P. O. Box 447, Tengeru-Arusha, Tanzania
  • Google Scholar
Geoffrey John
  • Geoffrey John
  • Department of Sustainable Energy Science and Engineering, The Nelson Mandela African Institute of Science and Technology, P. O. Box 447, Tengeru-Arusha, Tanzania
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Akos Bereczky
  • Akos Bereczky
  • Department of Energy Engineering, Budapest University of Technology and Economics, H-1111 Budapest, Bertalan Lajos u. 4-6, D208, Hungary.
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Makame Mbarawa
  • Makame Mbarawa
  • Ministry of Communication, Science and Technology, The United Republic of Tanzania, 11470 Dar es Salaam, Jamhuri Street, P. O Box 2645, DSM, Tanzania.
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  •  Accepted: 30 July 2013
  •  Published: 06 September 2013

Abstract

Vegetable oils as fuel have received attention in recent years due to their advantages including renewable nature and domestically produced energy resources. Achieving reduced emission is important subject, as it enhances sustainability of biofuels. General factorial experimental design and analysis of variance (ANOVA) is used to analyze how NOx emission is influenced by alcohol content in vegetable oil-diesel fuel blends. Fuel samples 20% croton oil – 80% diesel (20%CRO-80%D2), 15% croton oil – 5% 1-butanol – 80% diesel (15%CRO–5%BU–80%D2), and 10% croton oil – 10% 1-butanol – 80% diesel (10%CRO–10%BU–80%D2) were investigated. Four-cylinder compression-ignition (CI) engine was run at constant speed 3000 RPM, loaded at different loading conditions: low idle as 0 to 100% load condition. The specific fuel consumption and exhaust temperature of fuel blend containing butanol was measured. It was observed that nitrogen oxides (NOx) emission decreases as percentage of butanol alcohol content increases in fuel samples.

 

Key words: Vegetable oil, butanol, NOx emissions, fuel blends, factorial design, analysis of variance (ANOVA).