A comparative study of forming and crash behavior of high strength steels

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Kingklang S., Julsri W., Chiyatan T., Uthaisangsuk V.

ผู้เผยแพร่: MDPI AG

ปีที่เผยแพร่ (ค.ศ.): 2019

Volume number: 8

Issue number: 1

หน้าแรก: 355

หน้าสุดท้าย: 379

จำนวนหน้า: 25

นอก: 2076-3417

eISSN: 2076-3417

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072264860&doi=10.3390%2fapp9173633&partnerID=40&md5=5b0dcd032ba2004e396421c532a0ef54

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The fuel cell is an electrochemical energy converter that directly converts the chemical energy of the fuel into electrical current and heat. The fuel cell has been able to identify itself as a source of clean energy over the past few decades. In order to achieve the durability and stability of fuel cells, many parameters should be considered and evaluated Therefore, in this study, a single-channel high-temperature polymer exchange membrane fuel cell (HT-PEMFC) has been numerically simulated in three-dimensional, isothermal and single-phase approach. The distribution of the hydrogen and oxygen concentrations, as well as water in the anode and cathode, are shown; then the effect of different parameters of the operating pressure, the gas diffusion layer porosity, the electrical conductivity of the gas diffusion layer, the ionic conductivity of the membrane and the membrane thickness are investigated and evaluated on the fuel cell performance. The results showed that the pressure drop in the cathode channel was higher than the anode channel, so that the pressure drop in the cathode channel was higher than 9 bars but, in the anode channel was equal to 2 bars. By examining the species concentration, it was observed that their concentration at the entrance was higher and at the output was reduced due to participation in the reaction and consumption. Also, with increasing the operating pressure, the electrical conductivity of the gas diffusion layer and ionic conduction of the membrane, the performance of the fuel cell is improved. ฉ 2019 by the authors.

คำสำคัญ

Fuel cell performance, High-temperature PEM fuel cell, Ionic conduction, Operating pressure, Porosity coefficient