Title: Experimental investigations of dual fuelled two-cylinder diesel engine with biodiesel and natural gas using a novel air-gas mixer

Authors: Brijesh Dager; Ajay Kumar; Ranbir Singh Sharma

Addresses: MED, D.C.R. University of Science and Technology, Sonepat-131039, Haryana, India ' MED, D.C.R. University of Science and Technology, Sonepat-131039, Haryana, India ' Automobile Engineering Department, G.B. Pant Institute of Technology, Okhla, New Delhi-110020, India

Abstract: In this study, natural gas (NG) and biodiesel were used to investigate the emission, combustion and performance behaviour of a CI engine in twin fuel mode. A mixture of natural gas and air using a newly designed coaxial multi holes air gas mixer has been naturally inducted during intake stroke of the engine as the main fuel whereas diesel/MOME biodiesel is used as pilot fuel to initiate the combustion. The experimental results show that brake thermal efficiency is 1.26% lower, BSEC is 1.17% higher than diesel. Nitrogen oxides are reduced by 4.12% when using DCNG and by 63.07% when using DLF. The level of smoke opacity emission in BCNG is 76% lower than in DLF, but 6.67% higher to DCNG modes at full load. In comparison to other modes of operation, BCNG has a higher value of exhaust gas temperature, and emission.

Keywords: natural gas; NG; combustion; emission; renewable fuel; mustard oil methyl ester; air fuel mixture.

DOI: 10.1504/IJETP.2023.138021

International Journal of Energy Technology and Policy, 2023 Vol.18 No.6, pp.353 - 370

Received: 16 Feb 2021
Received in revised form: 25 Apr 2022
Accepted: 08 May 2022
Published online: 17 Apr 2024 *