INVESTIGATION OF THE EFFECT OF A DIFFERENT TRAPEZOIDAL INCLINATION ANGLE IN A REVERSE TRAPEZOIDAL CROSS-SECTION FLOW CHANNEL ON THE PERFORMANCE OF THE PEM FUEL CELL WITH THE COMPUTATIONAL FLUID DYNAMIC (CFD) METHOD

Yunus Sayan

doi:10.17780/ksujes.1180483

TR EN

TERS TRAPEZ KESİTLİ BİR AKIŞ KANALINDA FARKLI BİR TRAPEZ EĞİM AÇISININ PEM YAKIT PİLİNİN PERFORMANSINA ETKİSİNİN HESAPLAMALI AKIŞKANLAR DİNAMİĞİ (HAD) YÖNTEMİ İLE İNCELENMESİ

Öz

Bu çalışmada, PEM yakıt pilleri için ters yamuk kesitli kanal şekli hesaplamalı akışkanlar dinamiği (HAD) yöntemi ile incelenmiştir. ANSYS Fluent, elektrokimyasal reaksiyonlar, kütle, türler, enerji transferi ve potansiyel alan denklemlerini çözmek için uygulandı. Pillerdeki türlerin kütle oranı, bağıl nem ve sıcaklık dağılımı grafikleri ile polarizasyon ve güç yoğunluğu eğrileri elde edildi. Sonuçlar, PEM yakıt pilleri kanalı için yaygın olarak kullanılan kare kesit şekline sahip iki referans geometri ile karşılaştırıldı. Referans geometrilerinden biri ters yamuk kesitli kanal ile aynı kanal genişliği ve yüksekliğine sahipken, diğeri aynı kesit alanına sahiptir. Analiz sonuçları, ters yamuk kesitli akış kanalı şekline sahip pilin, kare kesitli akış kanalı şekline sahip pilden %32’den daha fazla güç yoğunluğuna sahip olduğunu, ancak su yönetiminin zayıf olduğunu göstermektedir.

Anahtar Kelimeler

INVESTIGATION OF THE EFFECT OF A DIFFERENT TRAPEZOIDAL INCLINATION ANGLE IN A REVERSE TRAPEZOIDAL CROSS-SECTION FLOW CHANNEL ON THE PERFORMANCE OF THE PEM FUEL CELL WITH THE COMPUTATIONAL FLUID DYNAMIC (CFD) METHOD

Abstract

In this work, a reverse trapezoidal cross-section channel shape for a single flow channel PEM fuel cell was examined with computational fluid dynamic (CFD) method. ANSYS Fluent was applied to solve electrochemical reactions, potential fields, mass, species, and energy transport equations. Species mass ratio, temperature distribution and relative humidity were obtained for the cell as well as the i-V and power density plots. The results were compared to two reference geometries with the commonly used square section shape for the channel. One reference geometry has the same channel width and height with the reverse trapezoidal cross-section channel while the other has the same cross-section area. The results indicate that the cell with reverse trapezoidal cross sectional flow channel shape has more than 32% higher power density than the cell with square cross-sectional flow channel shapes, but poor water management.

Keywords

References

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Details

Primary Language

English

Subjects

Mechanical Engineering

Journal Section

Research Article

Authors

Yunus Sayan ^*
0000-0002-0871-6842
Türkiye

Publication Date

June 3, 2023

Submission Date

September 26, 2022

Acceptance Date

December 13, 2022

Published in Issue

Year 2023 Volume: 26 Number: 2

DOI

https://doi.org/10.17780/ksujes.1180483

IZ

https://izlik.org/JA55HK76MX

Cite

RIS / Bibtex

APA

Sayan, Y. (2023). INVESTIGATION OF THE EFFECT OF A DIFFERENT TRAPEZOIDAL INCLINATION ANGLE IN A REVERSE TRAPEZOIDAL CROSS-SECTION FLOW CHANNEL ON THE PERFORMANCE OF THE PEM FUEL CELL WITH THE COMPUTATIONAL FLUID DYNAMIC (CFD) METHOD. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 26(2), 408-423. https://doi.org/10.17780/ksujes.1180483

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