Gad, M., Mustafa, H. (2018). Effect of Egyptian Roselle biodiesel on performance and emissions of diesel engine. Egyptian Journal of Chemistry, 61(6), 700-710. doi: 10.21608/ejchem.2018.4425.1392
Mohammed Saber Gad; Hassan Muhammad Mustafa. "Effect of Egyptian Roselle biodiesel on performance and emissions of diesel engine". Egyptian Journal of Chemistry, 61, 6, 2018, 700-710. doi: 10.21608/ejchem.2018.4425.1392
Gad, M., Mustafa, H. (2018). 'Effect of Egyptian Roselle biodiesel on performance and emissions of diesel engine', Egyptian Journal of Chemistry, 61(6), pp. 700-710. doi: 10.21608/ejchem.2018.4425.1392
Gad, M., Mustafa, H. Effect of Egyptian Roselle biodiesel on performance and emissions of diesel engine. Egyptian Journal of Chemistry, 2018; 61(6): 700-710. doi: 10.21608/ejchem.2018.4425.1392
Effect of Egyptian Roselle biodiesel on performance and emissions of diesel engine
Article 48, Volume 61, Issue 6, November and December 2018, Page 700-710
1Mechanical Engineering department- National Research Centre
2Mechanical Engineering Department- National Research Centre
Receive Date: 12 July 2018,
Revise Date: 02 August 2018,
Accept Date: 09 August 2018
Abstract
The ever increase in global energy demand, consumption of depletable fossil fuels, exhaust emissions and global warming, all these led to search about alternative fuels. Screw press extraction method was used to extract oil from roselle seeds at a temperature of 45 °C and motor speed of 30 rpm. Biodiesel was prepared from roselle oil by transesterification process. Biodiesel blends were prepared from diesel and roselle biodiesel in volume percentages of 10 and 20 % as B10 and B20 blends. Biodiesel blends have ASTM standards of physical and chemical characterization near to diesel fuel. Diesel engine performance and exhaust emissions were studied experimentally for burning roselle biodiesel blend with diesel fuel. This experimental was applied on a diesel engine at different engine loads from start to full load. Thermal efficiency for roselle biodiesel blends was higher than diesel oil. Specific fuel consumptions of biodiesel blends were showed lower than diesel fuel. CO, smoke opacity and HC emissions for biodiesel blends were decreased of diesel fuel. NOx emissions for biodiesel blends increased on diesel fuel. Roselle biodiesel blends up to 20% percentage by volume biodiesel are recommended as alternative fuels because performance and emissions was improved compared to diesel fuel.
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