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Case study on operating characteristics of gas fueled ship under the conditions of load variation
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Case study on operating characteristics of gas fueled ship under the conditions of load variation
Chun, Jung-Min; Kang, Ho-Keun; Kim, You-Taek; Jung, Mun-Hwa; Cho, Kwon-Hae;
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The use of gas as fuel, particularly liquefied natural gas (LNG), has increased in recent years owing to its lower sulfur and particulate emissions compared to fuel oil or marine diesel oil. LNG is a low temperature, volatile fuel with very low flash point. The major challenges of using LNG are related to fuel bunkering, storing, and handling during ship operation. The main components of an LNG fuel system are the bunkering equipment, fuel tanks, vaporizers/heaters, pressure build-up units (PBUs), and gas controlling units. Low-pressure dual-fuel (DF) engines are predominant in small LNG-powered vessels and have been operating in many small- and medium-sized ferries or LNG-fueled generators.(Tamura, K., 2010; Esoy, V., 2011[1][2]) Small ships sailing at coast or offshore rarely have continuous operation at constant engine load in contrast to large ships sailing in the ocean. This is because ship operators need to change the engine load frequently due to various obstacles and narrow channels. Therefore, controlling the overall system performance of a gas supply system during transient operations and decision of bunkering time under a very poor infrastructure condition is crucial. In this study, we analyzed the fuel consumption, the system stability, and the dynamic characteristics in supplying fuel gas for operating conditions with frequent engine load changes using a commercial analysis program. For the model ship, we selected the `Econuri`, Asia`s first LNG-powered vessel, which is now in operation at Incheon Port of South Korea.
LNG;Gas fueled ship;Fuel supply system;Low-pressure Dual-fuel engine;LNG bunkering;
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해양환경안전학회지, 2018. vol.24. 3, pp.352-359 crossref(new window)
K. Tumura, "Development of Efficient, Environmentally Friendly and Flexible Shipboard Regasification Vessel," Mitsubishi Heavy Industries Technical review, vol. 47, no. 3, pp. 13-18, 2010.

V. Esoy, P. M. Einang, D. Stenersen, E. Hennie, and I. Valberg, "LNG-fuelled engines and Fuel systems for medium-speed engines in maritime application," SAE Technical Paper 2011-01-1998, Society of Automotive Engineers of Japan(SAE), 2011.

M. Econnomides, K. Sun, and G. Subero, "Compressed natural gas (CNG): An alternative to liquified natural gas (LNG)," Journal SPE Production and Operations, vol. 21, no. 2, pp. 318-324, 2006. crossref(new window)

E. Gohary and M. Morsy, "The future of natural gas as a fuel in marine gas turbine for LNG carriers," Proceedings of the Institution of Mechanical engineers, Part M: Journal of Engineering for the Maritime Environment, vol. 226, no. 4, pp. 371-377, 2012. crossref(new window)

IMO, International Code of Safety for Ships Using Gases or other Low-flashpoint Fuels (IGF Code), 2015.

K. P. Kim, Y. T. Kim, and H. K. Kang, "CFD approach on gas explosion for SIL in gas fuelled ship", Journal of the Korean Society of Marine Engineering, vol. 39, no. 2, pp. 195-200, 2015. crossref(new window)

M. Oka, A. Zaitsu, and K. Nakamich, "Development of LNG facility for marine applications: MHI-GEMS," Mitsubishi Heavy Industries Technical review, vol. 50, no. 2, pp. 5-11, 2013.

H. J. Cho, Y. K. Yeo, and J. K. Kim, "Optimal design of natural gas liquefaction processes," Korean Chemical Engineering Research, vol. 51, no. 1, pp. 25-34, 2013 (in Korean). crossref(new window)

D. C. Rennels and H. M. Hudson, Pipe Flow: A Practical and Comprehensive Guide, Hoboken, NJ, USA: John Wiley & Sons, 2012.

N. Kim, Design Optimization of a Low Pressure LNG Fuel Supply System, M.S. Thesis, Norwegian University of Science and Technology, NTNU, 2015.

11., Accessed May 20, 2016.

AspenTech, Aspen HYSYS, http;//, Accessed May 07, 2015.

Y. H. Lee, Y. T. Kim, and H. K. Kang, "An analysis on the characteristics of regasification system for gas fuelled ship depending on the mixing ratio of eglycol and water," Journal of the Korean Society of Marine Engineering, vol. 38, no. 7, pp. 799-805, 2014 (in Korean). crossref(new window)

M. C. Ekwonu, S. Perry, and E. A Oyedoh, "Modelling and simulation of gas engines using aspen HYSYS," Journal of Engineering Science and Technology Review, vol. 6, no. 3, pp. 1-4, 2013.

Z. Yuan, M. Cui, R. Song, Y. Xie, and L. Han, "Performance improvement of a boil-off gas re-condensation process with pre-cooling at LNG terminals," International Journal of Thermodynamics (IJoT), vol. 18, no. 2, pp. 74-80, 2015. crossref(new window)

ABS Rule, Propulsion and Auxiliary Systems for Gas Fueled Ships, American Bureau of Shipping, 2015.