Real-time remote monitoring of temperature and humidity within a proton exchange membrane fuel cell using flexible sensors
Journal
Sensors
Journal Volume
11
Journal Issue
9
Pages
8674-8684
Date Issued
2011
Author(s)
Kuo, L.-S.
Huang, H.-H.
Yang, C.-H.
Chen, P.-H.
Kuo, Long-Sheng
Huang, Hao-Hsiu
Yang, Cheng-Hao
Chen, Ping-Hei
Abstract
This study developed portable, non-invasive flexible humidity and temperature microsensors and an in situ wireless sensing system for a proton exchange membrane fuel cell (PEMFC). The system integrated three parts: a flexible capacitive humidity microsensor, a flexible resistive temperature microsensor, and a radio frequency (RF) module for signal transmission. The results show that the capacitive humidity microsensor has a high sensitivity of 0.83 pF%RH(-1) and the resistive temperature microsensor also exhibits a high sensitivity of 2.94 × 10(-3) °C(-1). The established RF module transmits the signals from the two microsensors. The transmission distance can reach 4 m and the response time is less than 0.25 s. The performance measurements demonstrate that the maximum power density of the fuel cell with and without these microsensors are 14.76 mW·cm(-2) and 15.90 mW·cm(-2), with only 7.17% power loss.
SDGs
Type
journal article