Cold exergy recovery in LNG powered ships with a new integral intermediate fluid vaporizer
作者： Shou-guang Yao , Rui Zhao , Meng-di Wang
DOI: 10.1063/5.0034865
关键词: Design systems 、 Liquefied natural gas 、 Environmental science 、 Exergy 、 Process engineering 、 Power generation system 、 Exergy efficiency 、 Investment cost 、 Vaporizer 、 Energy (signal processing)
摘要: In this paper, a 25 000 tons liquefied natural gas (LNG) powered chemical tanker is taken as the research object, and combined with new integrated intermediate fluid vaporizer (IFV) cold energy utilization function, four different schemes for LNG are proposed. Through performance simulation optimization analysis of design schemes, results show that full power generation system scheme two heat regenerators best, optimized exergy efficiency can reach 53.13%. Because its compact structure, constructed by IFV overcomes huge complex problem original separate equipment system. Furthermore, through technical economic scheme, investment cost in early stage CNY 1 864 200, annual operating income 712 500, net 451 600.
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