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http://dx.doi.org/10.5762/KAIS.2018.19.5.681

Conceptual Design of the Fuel Injection Valve Tester for ME-LGI Marine Engine by Using System Engineering  

Noh, Hyonjeong (Korea Research Institute of Ships & Ocean Engineering)
Kang, Kwangu (Korea Research Institute of Ships & Ocean Engineering)
Bae, Jaeil (YOOYOUN ENE Co.,LTD)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.5, 2018 , pp. 681-688 More about this Journal
Abstract
As environmental regulations have been strengthened and high fuel efficiency has been in demand in recent years, the number of ships using natural gas as a fuel is increasing. The demand for ships using LPG or methanol, which are emerging as eco-friendly vessel fuels, is also increasing. In this perspective, ME-LGI engines using LPG or methanol as a fuel have attracted considerable attention. Ships equipped with an ME-LGI engine are required to check the reliability of the fuel injection valve during shipping. This means that the development of a fuel injection valve tester is essential for the commercialization of ME-LGI engine. This study conducted the conceptual design of a fuel injection valve tester for ME-LGI engines using a system engineering process in the order of requirements analysis, functional analysis, and design synthesis. In the requirement analysis stage, the operating process of fuel injection valve was analyzed, and the necessity of checking the sealing oil leakage was then derived. In the functional analysis stage, the functions and flow of them were defined at each functional level. In the design synthesis stage, the equipment for each function was set and the process block diagram based on it was derived. In addition, preliminary risk analysis was performed as a part of system analysis and control, and safety measures were added to the conceptual design. This study is expected to be a good reference material for the concept design of other systems in the future because it shows the application process of a system engineering process to the conceptual design in detail.
Keywords
Marine Engine; Fuel Injection Valve; Methanol; System Engineering; Process Block Diagram;
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