DOI: https://doi.org/10.15587/1729-4061.2016.72544

Efficiency improvement of ships operation by water-fuel emulsion using

Aleksey Malahov, Roman Gudilko, Alexander Palagin, Igor Maslov

Abstract


The technology of using water-fuel emulsions during operation of vessels serving oil platforms is investigated. When considering the process of burning water fuel emulsions the diffusion theory of combustion with the scheme effective film. The mechanism of combustion of water-fuel droplets is described and the main theoretical expressions were applied. The results of physical experiments relating to the influence of water concentration on the combustion process of the emulsion were obtained during the operation of the main engine of the vessel. It was established how the concentration of water components influence the burning process water fuel emulsions. For different load modes for the main engine of the set numerical values of fuel economy depending on the water concentration in the feed for the combustion of water-fuel emulsion. The result of maximum fuel economy equal to 13.42 % is obtained at the engine load of 80 %. It is shown that with the increasing humidity of the fuel from 1 % to 15 % the temperature of exhaust flue gases of ships is reduced by 52.7 oС.

It is established that the presence of water in a lightweight diesel fuel under certain conditions can have a positive effect on the combustion process, which leads to improved characteristics of the resulting torch of fuel burning and heat dissipation. 


Keywords


emulsion; of the engine; the mixture of water and diesel; dispersion; flash point; concentration of water

References


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GOST Style Citations


Ischuk, U. G. Intensifikatsiya protsesov sgoraniya v sudovih diselyah [Text] / U. G. Ischuk. – Leningrad: Sudostroenie, 1987. – 53 p.

Lawson, A. Modified fuels for diesel engines by application of unstabilised emulsions [Тext] / A. Lawson, A. Y. Last // SAE Technical Paper Series. – 1979. – P. 16. doi: 10.4271/790925

Augustina, O. Emulsion Treatment in the Oil Industry: A Case Study of Oredo Field Crude Oil Emulsion [Тext] / O. Augustina, S. Okotie // SPE Nigeria Annual International Conference and Exhibition, 2015. doi: 10.2118/178381-ms

Zhang, H. The Influence Faction to the Crude Oil Emulsion Stability [Тext] / H. J. Zhang // Advanced Materials Research. – 2012. – Vol. 502. – P. 330–334. doi: 10.4028/www.scientific.net/amr.502.330

Malahov, A. V. Jet forces analysis for cones [Тext] / A. V. Malahov, O. V. Streltsov, I. Z. Maslov, R. G. Gudilko // Proceedings of the 1st International Academic Conference “Science and Education in Australia, America and Eurasia: Fundamental and Applied Science”, 2014.

Houlihan, T. Boiler Emission Control With Fuel Oil Emulsion Technology [Тext] / T. Houlihan // ASME 2007 Power Conference, 2007. doi: 10.1115/power2007-22155

Yuan, Z. Risk analysis on ship to ship crude oil transfer at sea [Тext] / Z. Yuan, W. Su // 2015 International Conference on Transportation Information and Safety (ICTIS), 2015. doi: 10.1109/ictis.2015.7232202

Аbramovich, G. М. Тeoriya turbulentnih struy [Text] / G. М. Аbramovich. – Мoscow: Gos. Izd-vo fiz.-маt. lit-ri, 1960. – 715 p.

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Walker, P. Voprosy goreniya. Vol. 1 [Text] / P. Walker, К. Right. – Мoscow: Inostr. Lit., 1953. – 362 p.

Ivanov, V. M. Toplivnie emulsiy [Text] / V. M. Ivanov. – Мoscow: Izdatelstvo Akademiy Nauk SSSR, 1962. – 246 p.

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ISSN (print) 1729-3774, ISSN (on-line) 1729-4061