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Croton megalocarpus oil-fired micro-trigeneration prototype for remote and self-contained applications: experimental assessment of its performance and gaseous and particulate emissions

Lookup NU author(s): Dr Dawei WuORCiD, Professor Tony Roskilly, Hongdong Yu


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According to the International Energy Agency's World Energy Outlook 2011, 60 per cent of the population in Africa, some 587 million people, mostly in sub-Saharan Africa, lacked access to electricity in 2009. We developed a 6.5 kWe micro-trigeneration prototype, on the basis of internal combustion engine with pure Croton megalocarpus oil (CMO) fuelling, which configures a distributed energy system to generate power, heating and cooling from a single sustainable fuel source for remote users. Croton megalocarpus is an indigenous tree in East and South Africa which has recently attracted lots of interests as a biofuel source because of its high oil-yield rate. The direct and local use of CMO, instead of CMO biodiesel converted by the transesterification process, minimizes the carbon footprints left behind because of the simple fuel production of CMO. The experimental assessment proves that the prototype fuelled with CMO achieves similar efficiency as with diesel. Also, with the elevation of the oil injection temperature, the gaseous and particulate emissions of CMO could be ameliorated to some extent as improvement of the atomization in the spray and the combustion in the engine cylinder.

Publication metadata

Author(s): Wu D, Roskilly AP, Yu H

Publication type: Article

Publication status: Published

Journal: Interface Focus

Year: 2013

Volume: 3

Issue: 1

Print publication date: 21/12/2012

ISSN (print): 2042-8898

ISSN (electronic): 2042-8901

Publisher: The Royal Society


DOI: 10.1098/rsfs.2012.0041


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Funder referenceFunder name
EP/F061978UK Engineering and Physical Science Research Council (EPSRC)