Feasibility investigation of a novel geothermal-based integrated energy conversion system: Modified specific exergy costing (M-SPECO) method and optimization
Cao Y. Dhahad H.A. Togun H. Hussen H.M. Anqi A.E. Farouk N. Issakhov A.
December 2021Elsevier Ltd
Renewable Energy
2021#1801124 - 1147 pp.
The current work proposes and investigates a novel multigeneration system (power, hydrogen, and energy) comprising a flash-binary geothermal power plant, a modified Kalian cycle, a low-temperature electrolyzer, and a reverse osmosis desalination setup. Indeed, the whole system has been devised regarding the multi-heat recovery technique and smart management of products through a structural modification. To emphasize the ability of the newly designed system in this work, the data of the Sabalan geothermal plant in Iran has been used as a case study. Subsequently, the feasibility of the proposed multigeneration system has been examined by the modified specific exergy costing (M-SPECO) method, characterizing the exergetic and cost aspects of the system. The M-SPECO method is recognized as an energy level-based cost scrutiny technique to evaluate energy conversion systems. Accordingly, the sensitivity study through single and dual parametric analyses has been implemented, wherein separator 1 pressure was the main parameter. Likewise, the non-dominated sorting genetic algorithm-II (NSGA-II) method has been applied to optimize the calculations and reveal the optimum conditions and results. In this way, the achieved optimum exergy efficiency of the system was calculated as 47.25%, followed by a value of 7.66 $/GJ for the modified overall unit cost of products.
Dual parametric study , Flash-binary geothermal , Freshwater , Hydrogen , Modified specific exergy costing , Multi-objective optimization
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School of Mechatronic Engineering, Xian Technological University, Xian, 710021, China
Mechanical Engineering Department, University of Technology, Baghdad, Iraq
Department of Biomedical Engineering, University of Thi-Qar, Nassiriya, 64001, Iraq
Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia
Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Alkharj, 16273, Saudi Arabia
Mechanical Engineering Department, Faculty of Engineering, Red Sea University Port Sudan, Sudan
Department of Mathematical and Computer Modelling, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Department of Mathematics and Cybernetics, Kazakh British Technical University, Almaty, 050000, Kazakhstan
School of Mechatronic Engineering
Mechanical Engineering Department
Department of Biomedical Engineering
Department of Mechanical Engineering
Mechanical Engineering Department
Mechanical Engineering Department
Department of Mathematical and Computer Modelling
Department of Mathematics and Cybernetics
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