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RISS 인기검색어
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- 저자 : Yang Myung Jo(조양명) (검색결과 1 건)
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Theoretical and Computational Analysis of LNG Evaporator
Palani Kumar Chidambaram,Seok Woo Son,Heuy Dong Kim(김희동),Dong Wook Kim(김동욱),Yang Myung Jo(조양명) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
Theoretical and numerical predictions on fluid flow and heat transfer in a typical LNG evaporator is performed. Methane is used in lieu of LNG as it constitutes over 80% of LNG. The theoretical predictions are performed by simple energy balance between the steam and methane. This is augmented by the mass transfer between the liquid phase methane and gas phase methane. The theoretical predictions are made to calculate the pressure drop and temperature drop in the steam tubes. Numerical simulations are carried out by solving the governing equations of multiphase flow in a portion of the evaporator domain with a single layer of steam pipe. The basic flow equations of continuity, momentum and energy equations form the governing equations along with equations of species transport. Multiphase modelling is incorporated using VOF method. Liquid methane is taken as primary phase. It vaporizes into gaseous methane which is taken to be secondary phase. Steam is taken as another secondary phase which flows through the heating coils. Closure for turbulence is modelled by a two equation turbulence model. Both the analytical and numerical predictions match well with each other. Further parametric studies are planned based on the current research.
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