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Numerical Analysis of Hydeogen Producrion with Electrolysis cell, Using Solar Energy

Bayat, Amir Hossein | 2023

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56566 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Hakkaki Fard, Ali; Bijarchi, Mohammad Ali
  7. Abstract:
  8. Hydrogen can serve as a green alternative to fossil fuels and contribute to improving environmental conditions. In this context, reducing the cost of hydrogen production is of fundamental importance. It is necessary to examine the impact of influential environmental parameters on hydrogen production cost reduction. In this study, a relationship for optimizing hydrogen production in two scenarios, with constant anode pressure and variable cathode pressure, as well as both variable anode and cathode pressures, has been presented. Furthermore, the effect of various parameters, including temperature, pressure, proton exchange membrane thickness, and solar cell efficiency, on hydrogen production has been investigated. Some of the noteworthy results of this research include analyzing the efficiency of the electrolysis cell under different environmental conditions, determining hydrogen production levels in winter and summer, and at various pressures, as well as on a full day, along with an analysis of the energy and exergy of hydrogen production. One interesting finding is that increasing the thickness of the proton exchange membrane leads to an increase in electrolysis cell efficiency, despite the increased internal resistance of the cell at these thicknesses, resulting in a higher Faraday efficiency and a decrease in cell working current. Additionally, compared to previous research, when the cell operates at optimal current, hydrogen production. Finally, the simultaneous effect of temperature variations throughout the day on the solar cell and the electrolysis cell has been investigated, showing that a decrease in temperature leads to an increase in solar cell efficiency, which outweighs the decrease in electrolysis cell efficiency, ultimately leading to an overall system efficiency increase. These results can be used in future research for the economic optimization of hydrogen production
  9. Keywords:
  10. Solar Collectors ; Water Electrolysis ; Hydrogen Producing ; Proton Exchange Membrane (PEM)Fuel Cell ; Exergy Analysis ; Energy Assessment ; Solar Cells ; Solar Energy

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