Design study on the integrated utilization system of medium temperature waste heat and LNG vaporization cold energy for 200000 DWT LNG-powered vessels
نویسندگان
چکیده
The study object for this work is a 215000 ton very large crude carrier ? liquefied natural gas powered vessel, intending to integrate the use of medium temperature flue waste heat from exhaust turbine and cold energy vaporization. It proposes Rankine cycle power generating system with two stage booster three lateral nesting following principle ?temperature matching, stepped utilization?, taking into account real demands circumstances vessel. shows that in tonnage through design optimization utilization scheme, released during vaporization fuel ME-GI host machine can be fully utilized, structure tight simple. After non-azeotropic mixed working media was optimized operational parameters were using genetic algorithm, designed paper reach 54.61% exergy efficiency 187.83 kW net output generation. annual income final CNY 1, 133, 240. capital recovery expected 5.06 years if put operation.
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ژورنال
عنوان ژورنال: Thermal Science
سال: 2023
ISSN: ['0354-9836', '2334-7163']
DOI: https://doi.org/10.2298/tsci220326146y