Comparison analysis of hydrogen addition into both anode and afterburner of fuel cell incorporated with hybrid renewable energy driven SOFC: An application of techno-environmental horizon and multi-objective optimization

• Published in: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
• Main Authors: Hai, Tao; El-Shafay, A. S.; Alizadeh, As'ad; Dhahad, Hayder A.; Chauhan, Bhupendra Singh; Almojil, Sattam Fahad; Almohana, Abdulaziz Ibrahim; Alali, Abdulrhman Fahmi
• Format: Article; Early Access
• Language: English
• Published: PERGAMON-ELSEVIER SCIENCE LTD 2024
• Subjects: Chemistry; Electrochemistry; Energy & Fuels
• Online Access: https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001139860300001
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/j.ijhydene.2023.02.016

fueling synthesis gas may be challenging. To mitigate this challenge, the present research aims to supply pure hydrogen to be mixed with synthesis gas before entering the anode compartment of SOFC. Wind energy is employed to take advantage of renewable energy for green hydrogen production to produce the required pure hydrogen. Feasibility assessment of a considered novel hybrid electricity generation system is carried out based on thermodynamics laws. Its performance characteristics are compared with a typical biomassdriven SOFC power block. Also, environmental considerations to specify the CO2 emission status of the hybrid plant were taken into account. The results show that with increasing current density, the maximum power values are calculated to be around 267 kW and 283 kW, respectively. Also, the hydrogen-injected framework produces more electricity by 5%-6%, which depends on operating conditions. Such a power generation enhancement has led to greater values for exergetic efficiencies as well as lower values for environmental damage impacts for the novel hybrid structure compared to a typical biomass-driven SOFC unit. Optimization results indicate that at point B, the _Wnet and epsilon ed respectively become, (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.