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http://dx.doi.org/10.5916/jkosme.2014.38.7.799

An analysis on the characteristics of regasification system for gas fuelled ship depending on the mixing ratio of eglycol and water  

Lee, Yoon-Ho (Department of Marine System Engineering, Graduate School of Korea Maritime and Ocean University)
Kim, You-Taek (Division of Marine System Engineering, Korea Maritime and Ocean University)
Kang, Ho-Keun (Division of Marine System Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.38, no.7, 2014 , pp. 799-805 More about this Journal
Abstract
Recently, the regulations of the Local and Global for a variety of air pollution prevention has been enhanced by the steep rise in fuel oil prices. So, the appearance of Gas Fuelled Ships became necessary. In this study, we configured a regasification system which uses Eglycol water as a heating medium to evaporate before being supply fuel to the DF engine, then we analysed the system properties according to the Eglycol water mixing ratio. The results were as follows. When pressure, temperature, and flux of natural gas(NG) which are supplied to DF engines are uniformly kept, the higher mixing ratio of Eglycol is, the lower mixing specific heat of Eglycol water. And the cycle flux and electric power were 1.65 and 1.54 times more required. respectively, than water was used as the heating medium. Basic variables including mass flux according to the mixing ratio of Eglycol water, required electric power of operating fluid pumps, the temperature of natural gas which is supplied to the engine, and the heat exchanger's capacity were drawn from the gotten results.
Keywords
regasification system; Gas Fuelled Ship; Ethylene glycol; Liquefied Natural Gas; vaporizer;
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