Exergy destruction analysis of a power generation system utilizing the cold energy of LNG

The purpose of this research is in-depth understanding the internal causes exergy destruction in various parts system and to identify potential improvements for components. focus on a combined cycle power generation that utilizes organic Rankine (ORC) direct expansion (DEC). To investigate primary sources each component, advanced analysis (AEA) utilized. result demonstrates net out proposed can reach 106.64 kW with energy efficiency 11.22%, 21.40%. heat exchanger identified as contributor destruction, constituting 81.70% total ratio. Specifically, condenser exhibits highest ratio at 59.82%, indicating need prioritized optimization efforts. findings AEA reveal source component irreversibility stems from endogenous part. This shows that, while most unavoidable, there remains room improvement. Regarding turbine, its primarily attributed inefficiencies, leading irreversibility. Nevertheless, may be avoidable reduced by 25.93 kW, which 2.5 times greater than exchanger. finding underscores high improvement ORC DEC turbines, making them priority