Exergetic, economic, and environmental evaluations and multi-objective optimization of an internal-reforming SOFC-gas turbine cycle coupled with a Rankine cycle
作者： Mehdi Aminyavari , Alireza Haghighat Mamaghani , Ali Shirazi , Behzad Najafi , Fabio Rinaldi
DOI: 10.1016/J.APPLTHERMALENG.2016.07.180
关键词: Optimal design 、 Rankine cycle 、 Process engineering 、 Waste management 、 Hybrid system 、 Multi-objective optimization 、 Degree Rankine 、 TOPSIS 、 Exergy 、 Turbine 、 Engineering
摘要: Abstract In the present study, a detailed thermodynamic model for an internal-reforming solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system integrated with Rankine (steam) cycle is developed, and exergetic, economic environmental analyses have been carried out on plant. Considering exergetic efficiency total cost rate of as conflicting objectives, multi-objective optimization conducted to determine optimal design point A set solutions (Pareto front) achieved, each which trade-off between chosen objectives. Finally, TOPSIS (Technique Order Preference by Similarity Ideal Solution) decision-making method used choose final parameters. The results demonstrate that proposed plant leads 65.11% 0.13745 €/s. Furthermore, reveal integration SOFC-GT has led 8.84% improvement in plant, producing additional 8439.2 MW h electricity avoiding ∼5900 metric tons carbon dioxide emissions annually.
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