A Comprehensive Thermoeconomic Evaluation and Multi-Criteria Optimization of a Combined MCFC/TEG System

Rahmad Syah, Afshin Davarpanah, Mahyuddin K. M. Nasution, Faisal Amri Tanjung, Meysam Majidi Nezhad and Mehdi Nesaht
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Rahmad Syah: Data Science & Computational Intelligence Research Group, Universitas Medan Area, Medan 20223, Indonesia
Afshin Davarpanah: Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran
Mahyuddin K. M. Nasution: Data Science & Computational Intelligence Research Group, Universitas Sumatera Utara, Medan 20155, Indonesia
Faisal Amri Tanjung: Faculty of Science and Technology, Universitas Medan Area, Medan 20223, Indonesia
Meysam Majidi Nezhad: Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Roma, Italy
Mehdi Nesaht: Optimisation and Logistics Group, School of Computer Science, University of Adelaide, Adelaide 5005, Australia

Sustainability, 2021, vol. 13, issue 23, 1-29

Abstract: In this study, an integrated molten carbonate fuel cell (MCFC), thermoelectric generator (TEG), and regenerator energy system has been introduced and evaluated. MCFC generates power and heating load. The exit fuel gases of the MCFC is separated into three sections: the first section is transferred to the TEG to generate more electricity, the next chunk is conducted to a regenerator to boost the productivity of the suggested plant and compensate for the regenerative destructions, and the last section enters the surrounding. Computational simulation and thermodynamic evaluation of the hybrid plant are carried out utilizing MATLAB and HYSYS software, respectively. Furthermore, a thermoeconomic analysis is performed to estimate the total cost of the product and the system cost rate. The offered system is also optimized using multi-criteria genetic algorithm optimization to enhance the exergetic efficiency while reducing the total cost of the product. The power generated by MCFC and TEG is 1247.3 W and 8.37 W, respectively. The result explicates that the provided electricity and provided efficiency of the suggested plant is 1255.67 W and 38%, respectively. Exergy inquiry outcomes betokened that, exergy destruction of the MCFC and TEG is 13,945.9 kW and 262.75 kW, respectively. Furthermore, their exergy efficiency is 68.22% and 97.31%, respectively. The impacts of other parameters like working temperature and pressure, thermal conductance, the configuration of the advantage of the materials, etc., on the thermal and exergetic performance of the suggested system are also evaluated. The optimization outcomes reveal that in the final optimum solution point, the exergetic efficiency and total cost of the product s determined at 70% and 30 USD/GJ.

Keywords: hybrid system; molten carbonates fuel cell; thermoelectric generator; energy; exergy analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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