✦ LIBER ✦

Effect of flow regime of circulating water on a proton exchange membrane electrolyzer

✍ Scribed by H. Ito; T. Maeda; A. Nakano; Y. Hasegawa; N. Yokoi; C.M. Hwang; M. Ishida; A. Kato; T. Yoshida

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 701 KB
Volume: 35
Category: Article
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2010.06.103

No coin nor oath required. For personal study only.

✦ Synopsis

The flow characteristics of circulating water in a proton exchange membrane (PEM) electrolyzer were experimentally evaluated using a small cell and two-phase flow theory.

Results revealed that when a two-phase flow of circulating water at the anode is either slug or annular, then mass transport of the water for the anode reaction is degraded, and that the concentration overvoltage increases at higher current density compared to that when the flow is bubbly. In a serpentine-dual flow field, when both phases of the two-phase flow are assumed laminar, then the increase in pressure drop caused by the increase in gas production can be explained relatively well using the LockharteMartinelli method with the Chisholm parameter. The optimal flow rate of circulating water was also discussed based on mass balance analysis.

📜 SIMILAR VOLUMES

Effect of water phase change on temperat

Effect of water phase change on temperature distribution in proton exchange membrane fuel cells

✍ Ebrahim Afshari; Seyed Ali Jazayeri; Yaser Mollayi Barzi 📂 Article 📅 2010 🏛 Springer-Verlag 🌐 English ⚖ 535 KB

Effect of the water-exchange index on th

Effect of the water-exchange index on the temperature regime of hydrostation pools

✍ Ya. L. Gotlib; A. I. Khudyakova 📂 Article 📅 1992 🏛 Springer 🌐 English ⚖ 589 KB

Transient behavior of water generation i

Transient behavior of water generation in a proton exchange membrane fuel cell

✍ Lixing Hao; Hongmei Yu; Junbo Hou; Wei Song; Zhigang Shao; Baolian Yi 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 303 KB

The effects of pinholes on proton exchan

The effects of pinholes on proton exchange membrane fuel cell performance

✍ Weizhong Lü; Zhixiang Liu; Cheng Wang; Zongqiang Mao; Milin Zhang 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 384 KB 👁 2 views

Pinholes in the membrane electrode assembly (MEA) of a fuel cell can lead to premature fuel cell failure. The main causes for pinhole formation are contaminant particles, non-uniform stress distribution, and membrane corrosion. In this paper fuel cell performance is compared before and after piercin

A review of water flooding issues in the

A review of water flooding issues in the proton exchange membrane fuel cell

✍ Hui Li; Yanghua Tang; Zhenwei Wang; Zheng Shi; Shaohong Wu; Datong Song; Jianlu 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 831 KB

A review of water flooding issues in the

A review of water flooding issues in the proton exchange membrane fuel cell

✍ Hui Li; Yanghua Tang; Zhenwei Wang; Zheng Shi; Shaohong Wu; Datong Song; Jianlu 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 831 KB

We have reviewed more than 100 references that are related to water management in proton exchange membrane (PEM) fuel cells, with a particular focus on the issue of water flooding, its diagnosis and mitigation. It was found that extensive work has been carried out on the issues of flooding during th