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CFD Analysis and Explosion Test of a Crankcase Relief Valve Flame Arrester for LNG-fuelled Ships
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 Title & Authors
CFD Analysis and Explosion Test of a Crankcase Relief Valve Flame Arrester for LNG-fuelled Ships
Lee, Hyo Ryeol; Ahn, Jung Hwan; Kim, Dong Keon; Ahn, Byoung Hoon; Kim, Hwa Young;
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 Abstract
Growing concerns about air pollution have led to increased demand for liquefied natural gas (LNG)-fuelled ships that have crankcases equipped with explosion relief valves to relieve excessive crankcase pressures and stop the flames emitted from the crankcase. The results of a computational fluid dynamics (CFD)-based feasibility analysis of the crankcase relief valve flame arrester design conducted using ANSYS CFX V14 showed that the inlet and outlet relief valve temperatures differed by . An explosion test was performed based on European standard EN14797 to evaluate the flame transmission and mechanical integrity of the valve. No flame transmission from the pressure vessel to the exterior was detected, and the mechanical integrity of the valve was confirmed. Thus, the relief valve components were found to be safe from the viewpoint of fracture.
 Keywords
LNG fuelled ship;Crankcase relief valve;Flame arrester;Computational fluid dynamics;
 Language
Korean
 Cited by
 References
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European Standard, 2006, Explosion Venting Devices, BS EN14797 - 1:32, European Committee for Standardization, European Union.