Study on Combustion and Emission Characteristics of Marine Diesel Oil and Water-In-Oil Emulsified Marine Diesel Oil

Moonchan Kim, Jungmo Oh and Changhee Lee
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Moonchan Kim: Department of Environmental Engineering, Cheongju University, Chungbuk 28503, Korea
Jungmo Oh: Division of Marine Engineering, Mokpo National Maritime University, Mokpo 58628, Korea
Changhee Lee: Department of Mechanical Systems Engineering for Energy Convergence Dongshin University, Jeonnam 58245, Korea

Energies, 2018, vol. 11, issue 7, 1-16

Abstract: Compression ignition engines used as marine engines are the most efficient internal combustion engines. They are well-established products, and millions are already on the market. Water-in-MDO (marine diesel oil) emulsions are the best alternative fuel for compression ignition engines and can be utilised with the existing setup of 2.0 L automotive common rail direct injection (CRDI) engines. They have benefits for the simultaneous reduction of both NO x and smoke (black carbon). Furthermore, they have a significant impact on the improvement of combustion efficiency. Micro-explosions are the most important phenomenon of water-in-diesel emulsions inside an internal combustion engine chamber. They affect both the emission reduction and combustion efficiency improvements directly and indirectly in accordance with the brake mean effective pressure (BMEP) and rpm. Owing to the influence of micro-emulsions on the combustion and emissions of water-in-diesel emulsion fuel, the reduction ratios of NO x and smoke in a used engine are approximately 30% and 80%, respectively. The effect of the operating parameters on micro-emulsions is presented.

Keywords: micro-explosions; CRDI engine; emulsion; water-in-MDO emulsion; marine diesel oil (MDO) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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