Next Article in Journal
Smart Sensor for Real-Time Quantification of Common Symptoms Present in Unhealthy Plants
Next Article in Special Issue
Direct Measurement of Lateral Force Using Dual Cantilevers
Previous Article in Journal
Soil Moisture Sensing via Swept Frequency Based Microwave Sensors
Previous Article in Special Issue
BIPV-Powered Smart Windows Utilizing Photovoltaic and Electrochromic Devices
Article Menu

Export Article

Open AccessArticle
Sensors 2012, 12(1), 768-783; doi:10.3390/s120100768

Local Area Water Removal Analysis of a Proton Exchange Membrane Fuel Cell under Gas Purge Conditions

Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 320, Taiwan
Author to whom correspondence should be addressed.
Received: 9 December 2011 / Revised: 24 December 2011 / Accepted: 4 January 2012 / Published: 11 January 2012
(This article belongs to the Special Issue Ultra-Small Sensor Systems and Components)
View Full-Text   |   Download PDF [1360 KB, uploaded 21 June 2014]   |  


In this study, local area water content distribution under various gas purging conditions are experimentally analyzed for the first time. The local high frequency resistance (HFR) is measured using novel micro sensors. The results reveal that the liquid water removal rate in a membrane electrode assembly (MEA) is non-uniform. In the under-the-channel area, the removal of liquid water is governed by both convective and diffusive flux of the through-plane drying. Thus, almost all of the liquid water is removed within 30 s of purging with gas. However, liquid water that is stored in the under-the-rib area is not easy to remove during 1 min of gas purging. Therefore, the re-hydration of the membrane by internal diffusive flux is faster than that in the under-the-channel area. Consequently, local fuel starvation and membrane degradation can degrade the performance of a fuel cell that is started from cold. View Full-Text
Keywords: gas purge; fuel cell; high frequency resistance; micro sensor gas purge; fuel cell; high frequency resistance; micro sensor

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Lee, C.-Y.; Lee, Y.-M.; Lee, S.-J. Local Area Water Removal Analysis of a Proton Exchange Membrane Fuel Cell under Gas Purge Conditions. Sensors 2012, 12, 768-783.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top