Performance assessment and multi-objective optimization of a multi-generation system based on solar tower power: A case study in Dubai, UAE

This paper designs and evaluates an innovative multigeneration system based on a heliostat solar field that is a combination of closed Brayton cycle, absorption refrigeration cycle, humidification and dehumidification desalination, and proton exchange membrane electrolyzer. Thermodynamic and exergoe...

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Bibliographic Details
Published in:Process safety and environmental protection 2022-05, Vol.161, p.295-315
Main Authors: Nedaei, Navid, Azizi, Saeid, Farshi, Leili Garousi
Format: Article
Language:English
Subjects:
Algorithms
Brayton cycle
Case studies
Case study
Cooling loads
Cooling systems
Dehumidification
Desalination
Economics
Efficiency
Electricity pricing
Exergy
Humidification
Multi-aspect analysis
Multigeneration system
Multiple objective analysis
Optimization
Payback periods
Performance assessment
Performance evaluation
Profitability
Refrigeration
Solar energy
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Summary:This paper designs and evaluates an innovative multigeneration system based on a heliostat solar field that is a combination of closed Brayton cycle, absorption refrigeration cycle, humidification and dehumidification desalination, and proton exchange membrane electrolyzer. Thermodynamic and exergoeconomic analyses are performed for the performance assessment. Moreover, the grey wolf optimization algorithm in different multi-objective optimization scenarios is implemented to obtain the optimum operating conditions and desirable performances. According to the obtained results, the simulation at the base operating conditions is led to generating 8.32 MW of power, 3.16 kg/s of freshwater, 8.37 MW of cooling load, and 0.22 kg/h of hydrogen with 39.15% exergy efficiency and 8.81 $/GJ sum unit cost of products. Moreover, the lowest payback period and maximum profitability are related to the electricity price of 0.07 $/kWh, with a payback period of 2.93 years. Also, at the optimum point, the exergetic efficiency with SUCP and freshwater production rate are considered obtained to be 45.09%, 8.27 $/GJ, and 3.89 kg/s. Finally, the proposed system performance was evaluated for a case study of Dubai, UAE. It is resulted that the maximum net power obtained in May during a yearly operation by about 7.40 MW with exergetic efficiency of 38.70%.
ISSN:0957-5820
1744-3598
DOI:10.1016/j.psep.2022.03.022