Title: Emissions and performance of a stationary diesel engine run on biodiesel blends

Authors: S. Oberweis; T.T. Al-Shemmeri

Addresses: Faculty of Computing, Engineering and Technology, Staffordshire University, Beaconside, ST18 0AD Stafford, UK. ' Faculty of Computing, Engineering and Technology, Staffordshire University, Beaconside, ST18 0AD Stafford, UK

Abstract: This paper presents an investigation into the effect of biodiesel blending on emissions and efficiency in a stationary diesel engine. Rapeseed based biodiesel blended in increments of 25% with fossil diesel. The emissions of CO₂ show a decrease in emission (g/kWh) with increased engine load. Within the range of tests carried out, the NO_x emissions from biodiesel and its blends proved to be higher than those of petro-diesel fuel. Furthermore, in this study a correlation was found relating the NO_x emissions and the flame temperature. The efficiency of the system is improved with increased biodiesel content in the fuel. As predicted, the results for CHP show a considerable improvement to the overall efficiency. [Received: January 22, 2011; Accepted: March 7, 2011]

Keywords: biodiesel combustion; biodiesel blending; greenhouse gases; GHG emissions; alternative fuels; renewable energy; combined heat and power; CHP; stationary diesel engines; rapeseed.

DOI: 10.1504/IJOGCT.2011.043718

International Journal of Oil, Gas and Coal Technology, 2011 Vol.4 No.4, pp.375 - 386

Published online: 29 Jan 2015 *

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