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Rafat Mohammadi

Rafat Mohammadi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0003-3675-4851
Education: PhD.
ScopusId: 6601987496
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Numerical analysis of flow maldistribution in planar solid oxide fuel cells with U, Z, and I arrangements
Type
Presentation
Keywords
Solid oxide fuel cell, Numerical analysis, Parallel flow configuration, Flow maldistribution.
Year
2022
Researchers Rafat Mohammadi ، Farzad Vismeh

Abstract

Despite the benefits of parallel channels, such as low pressure drop and ease of fabrication, they can cause flow maldistribution, leading to poor fuel cell performance. In this paper, numerical analysis was carried out to observe the effect of flow field arrangement on flow distribution uniformity and its effect on the performance of a planar solid oxide fuel cell with U-type, Z-type, and I-type arrangements. The obtained results show that the I-type has the most uniform flow, while the U-type provides the least uniformity. However, the best arrangement in terms of temperature distribution is the U-type, in which the maximum temperature is about 25 K lower than other arrangements at a voltage of 0.6 V. Better flow uniformity of the I-type results in less pressure drop, more current density, and more net output power so that the I-type generates 39% more net power than the U-type and 0.6% more than the Z-type at a voltage of 0.6 V.