Effect of biodiesel-diesel-n-pentanol and biodiesel-diesel-n-hexanol blends on diesel engine emission and combustion characteristics

D. Babu and R. Anand

Energy, 2017, vol. 133, issue C, 761-776

Abstract: The aim of this paper is to analyse the combustion, performance and emission characteristics of diesel engine fuelled with biodiesel-diesel-n-pentanol and biodiesel-diesel-n-hexanol blends without engine modification. The fuel constituents were varied between 0 and 100% in the range of 5%. In this, above 75% of biodiesel content, 5% of diesel and less than 20% of n-pentanol and n-hexanol content were selected. Based on the fuel characterization, B90-D5-P5, B85-D5-P10, B90-D5-H5 and B85-D5-H10 were selected for further experimental investigation. The lowest brake specific energy consumption of 12.64 MJ/kWh was obtained for B90-D5-H5 blend at full load condition. The maximum brake thermal efficiency of 31.0% was obtained in B90-D5-H5 blend. The B85-D5-H10 fuel has a maximum heat release rate of 44.53 J/°CA. The lowest carbon monoxide emission of 0.74% vol. was obtained from B85-D5-P10. At 100% load, least unburned hydrocarbons emission of 74 ppm was obtained in B85-D5-P10 blend. The maximum nitric oxide emission of 910 ppm was obtained in B85-D5-H10. Among the above mentioned blends B85-D5-P10 blend has the minimum emission of CO, UBHC and FSN. Thus, this paper discusses the viability of recommending biodiesel-diesel-alcohol blends to fulfill the future energy demands of the world.

Keywords: Waste frying oil; Biodiesel; Ternary blends; Performance; Combustion; Emission (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (31)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:133:y:2017:i:c:p:761-776

DOI: 10.1016/j.energy.2017.05.103

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