Analysis of a novel concentrated solar power and magnetohydrodynamic liquid metal units integrated system with hydrogen production |
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| Affiliation: | 1. Faculty of Engineering, Urmia University, Urmia, Iran;2. Department of Mechanical Engineering, University of Alberta, Alberta, Canada;3. Faculty of Mechanical Engineering, Yildiz Technical University, 34349, Istanbul, Turkey;1. Bursa Technical University, Smart Grid Lab., Department of Electrical and Electronics Engineering, 16300, Bursa, Turkey;2. TEIAS 2nd Regional Directorate Facility and Control Chief Engineering, Bursa, Turkey;1. The Graduate School of Natural and Applied Sciences, Dokuz Eylul University, Buca, Izmir, Turkey;2. Department of Energy Conversion and Storage, Technical University of Denmark (DTU), DK-2800 Kgs., Lyngby, Denmark;3. Faculty of Engineering, Department of Mechanical Engineering, Gebze Technical University, Gebze, Kocaeli, Turkey;4. Faculty of Engineering, Department of Mechanical Engineering, Dokuz Eylul University, Buca, Izmir, Turkey;1. Sustainable Energy Systems Application and Research Center, Haliç University, 34445, Istanbul, Turkey;2. Faculty of Engineering, Mechanical Engineering, Haliç University, 34445, Istanbul, Turkey |
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| Abstract: | The engineers are very interested in concentrated solar power (CSP) due to its renewable energy source nature. However, for this technology to grow, it is crucial to integrate efficient, cost-effective subsystems. On the other hand, since liquid metal magnetohydrodynamic (LMMHD) power generation systems can operate at high temperatures of 600 °C–3000 °C, they are ideal for use as a subsystem of a CSP-based plant to improve efficiency. The use of waste heat recovery units is another method of increasing efficiency and preventing exergy losses. Taking these points into consideration, the proposed trigeneration system includes an LMMHD, a CSP, and humidification-dehumidification and proton exchange membrane units to produce power, freshwater, as well as hydrogen, respectively. Performance evaluation of the presented system includes thermodynamic and thermoeconomic considerations. The results show that the presented system produces 11.87 kW of power, 6.1 m3/h of hydrogen, and 860.2 L/h of freshwater with an energy utilization factor of 45.81%, a total exergy efficiency of 4.63%, and a unit cost of 19.57 $/kWh. The receiver is the most destructive component of the system, with 256.9 kW of exergy destruction. Further, the parametric study indicates that it is possible to maximize the energy efficiency of the system by changing the concentration ratio of the receiver. |
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| Keywords: | Concentrated solar power Humidification-dehumidification Liquid metal magnetohydrodynamic Multigeneration PEM electrolysis |
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