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Article

Exergoeconomic and Environmental Modeling of Integrated Polygeneration Power Plant with Biomass-Based Syngas Supplemental Firing

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Energy, Exergy, and Environment Research Group (EEERG), Department of Mechanical Engineering, Michael Okpara University of Agriculture Umudike, Umudike 440109, Nigeria
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Energy and Thermofluids Research Group, Department of Mechanical Engineering, Faculty of Engineering, University of Port Harcourt, PMB 5323, Choba, Port Harcourt 500102, Nigeria
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Department of Electrical and Computer Engineering, Shaqra University, Riyadh B11911, Saudi Arabia
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Department of Mechanical Engineering, Federal University of Petroleum Resources Effurun, P.M.B 1221, Effurun, Effurun 330102, Nigeria
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Department of Electrical Engineering, Mirpur University of Science and Technology, Mirpur Azad Kashmir 10250, Pakistan
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Department of Mechanical, Biomedical and Design Engineering, School of Engineering and Physical Science, Aston University, Birmingham B47ET, UK
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Department of Mechanical Engineering, University of Engineering and Technology Lahore, New Campus- KSK 54800, Pakistan
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Author to whom correspondence should be addressed.
Energies 2020, 13(22), 6018; https://doi.org/10.3390/en13226018
Received: 23 October 2020 / Revised: 10 November 2020 / Accepted: 12 November 2020 / Published: 18 November 2020
(This article belongs to the Special Issue Low-Temperature Thermodynamic Power Cycles)
There is a burden of adequate energy supply for meeting demand and reducing emission to avoid the average global temperature of above 2 °C of the pre-industrial era. Therefore, this study presents the exergoeconomic and environmental analysis of a proposed integrated multi-generation plant (IMP), with supplemental biomass-based syngas firing. An in-service gas turbine plant, fired by natural gas, was retrofitted with a gas turbine (GT), steam turbine (ST), organic Rankine cycle (ORC) for cooling and power production, a modified Kalina cycle (KC) for power production and cooling, and a vapour absorption system (VAB) for cooling. The overall network, energy efficiency, and exergy efficiency of the IMP were estimated at 183 MW, 61.50% and 44.22%, respectively. The specific emissions were estimated at 122.2, 0.222, and 3.0 × 10−7 kg/MWh for CO2, NOx, and CO, respectively. Similarly, the harmful fuel emission factor, and newly introduced sustainability indicators—exergo-thermal index (ETI) and exergetic utility exponent (EUE)—were obtained as 0.00067, 0.675, and 0.734, respectively. The LCC of $1.58 million was obtained, with a payback of 4 years, while the unit cost of energy was estimated at 0.0166 $/kWh. The exergoeconomic factor and the relative cost difference of the IMP were obtained as 50.37% and 162.38%, respectively. The optimum operating parameters obtained by a genetic algorithm gave the plant’s total cost rate of 125.83 $/hr and exergy efficiency of 39.50%. The proposed system had the potential to drive the current energy transition crisis caused by the COVID-19 pandemic shock in the energy sector. View Full-Text
Keywords: gas turbine; multigeneration; exergetic utility exponent; thermo-enviroeconomic; exergy gas turbine; multigeneration; exergetic utility exponent; thermo-enviroeconomic; exergy
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MDPI and ACS Style

Abam, F.I.; Diemuodeke, O.E.; Ekwe, E.B.; Alghassab, M.; Samuel, O.D.; Khan, Z.A.; Imran, M.; Farooq, M. Exergoeconomic and Environmental Modeling of Integrated Polygeneration Power Plant with Biomass-Based Syngas Supplemental Firing. Energies 2020, 13, 6018. https://doi.org/10.3390/en13226018

AMA Style

Abam FI, Diemuodeke OE, Ekwe EB, Alghassab M, Samuel OD, Khan ZA, Imran M, Farooq M. Exergoeconomic and Environmental Modeling of Integrated Polygeneration Power Plant with Biomass-Based Syngas Supplemental Firing. Energies. 2020; 13(22):6018. https://doi.org/10.3390/en13226018

Chicago/Turabian Style

Abam, Fidelis. I., Ogheneruona E. Diemuodeke, Ekwe. B. Ekwe, Mohammed Alghassab, Olusegun D. Samuel, Zafar A. Khan, Muhammad Imran, and Muhammad Farooq. 2020. "Exergoeconomic and Environmental Modeling of Integrated Polygeneration Power Plant with Biomass-Based Syngas Supplemental Firing" Energies 13, no. 22: 6018. https://doi.org/10.3390/en13226018

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