Design and analysis of an alkaline fuel cell

This study provides a step-by-step, up-to-date fuel cell fundamentals, thermodynamic and electrochemical principles, system evaluation factors via case of 10-kW alkaline designed to operate in space applications. The also produces 100 kg pure water 5.5 kW heat. is modelled using MATLAB ANSYS Fluent. Then, the model verified with theoretical experimental results from literature. A parametric various design operating parameters, material selection carried out optimize overall performance. net output voltage 0.8 V obtained at 150 mAcm-2 current density, which yields an efficiency 75%. indicate that increasing electrolyte thickness or temperature lower output. Additionally, improving performance through bipolar plate can be achieved by understanding contribution different parameters towards minimizing pressure drop across plate. It found implementing optimized fluid flow rate, channel width, depth, number channels density minimize throughout Relative humidity has significant effect on drop. Results relative consequentially rises Finally, CFD simulation illustrates end-zones accumulates due nature stagnation those locations. Thus, total locations highest. One major contributions here studying KOH concentration AFC temperatures. In addition, wide range were analysed understand their cell.