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thermodynamic and economic Studies of a Combined Cycle for Waste Heat Recovery of Marine Diesel Engine

Journal of Thermal Science 2022年第2期31卷 417-435页

作者： ZHANG Xinxin CAO Min HE Maogang WANG Jingfu MOE key laboratory of enhanced heat transfer and energy conservation Beijing University of TechnologyBeijing 100124China Beijing key laboratory of heat transfer and energy conversion Beijing University of TechnologyBeijing 100124China MOE Key Laboratory of Thermo-Fluid Science and Engineering School of Energy and Power EngineeringXi'an Jiaotong UniversityXi’an 710049China

In the present study,the thermodynamic and economic performance of a combined thermodynamic cycle formed by an ORC and a Kalina cycle,which can simultaneously recover waste heat of exhaust gas and cooling water of marine engine,has been *** typical marine engines are selected to be the waste heat *** economic indicators are used to analyze the economic performance of this combined thermodynamic cycle system with different marine engine load and under practical comprehensive operating condition of marine *** results of the present study show that the combined thermodynamic cycle system with R123 as organic working fluid has the best *** system with cis-butene has the worst economic *** practical comprehensive operating conditions of ships,R123 has the shortest Payback Periods,which are 8.51 years and 8.14 years for 8 S70 ME-C10.5 engine and 5G95 ME-C10.5 engine,***,payback Periods of Cyclopentane are 11.95 years and 11.90 *** above values are much shorter than 25 years which are the lifetime of a marine *** practical comprehensive operating conditions of ships,the combined cycle system can provide output power which is at least equivalent to 25%of engine *** that R123 will be phased out in near future,cyclopentane may be its good *** can be used safely by correct handling and installing according to manufacturer's instructions.

关键词： marine engine waste heat recovery combined thermodynamic cycle thermodynamic and economic study R123 cyclopentane

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