Solar Energy and Sustainable Development

Published by Center for Solar Energy Research and Studies, Tajoura - Tripoli-LibyaISSN: 2411-9636 (P) , ISSN: 2414-6013 (e)

Arabic Impact Factor - 1.26

Editor-in-Chief: Dr. Wedad A. El-Osta

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Hamza Ahmed
University of Tripoli
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Abdullatif Musa
University of Tripoli
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Abstract:

Abstract: The proton exchange membrane fuel cell (PEMFC) is regarded as the most competitive candidate to replace the traditional forms of power conversion due to its prominent advantages. The hydrogen gas is used as a main fuel in the fuel cells. The hydrogen gas can be produced through the use of solar energy which is connected to alkaline electrolysis cell (AEC) by water splitting process known as electrolysis. In this paper,
a thermodynamic model is presented to design and optimize a direct coupling system (DCS) that has two cells, an alkaline electrolysis cell (AEC) and a proton exchange membrane fuel cell (PEMFC). Moreover, the performances of the direct coupling system (DCS) are evaluated using numerical model that are built in Engineering Equations solver software. So several parameters concerning the direct coupling system (DCS) such as the voltage of system, the hydrogen rate production from electrolysis which injects to fuel cell and producing power of the full system. The simulations result show that, the voltage of alkaline electrolysis is higher than the fuel cell. The water management process in the whole system is considered satisfactory due to the low value of the losses in the amount of water. The water which is generated from the fuel cell is injected to electrolysis cell, so the electrolysis cell does not need to inject large quantities of water. The efficiency of the system is about 34.85% and this efficiency is satisfactory compared to other systems of power generation as this percentage is due to clean, renewable and environmentally friendly fuel.

Keywords:

Renewable energy; alkaline electrolysis cell (AEC); the proton exchange membrane fuel cell (PEMFC); power generation.

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"Performance Investigation of Direct oupling Advanced Alkaline Electrolysis and PEMFC System"

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