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Sensors 2010, 10(7), 6395-6405; doi:10.3390/s100706395

In-situ Monitoring of Internal Local Temperature and Voltage of Proton Exchange Membrane Fuel Cells

Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan, Taiwan
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Received: 31 May 2010 / Revised: 17 June 2010 / Accepted: 22 June 2010 / Published: 29 June 2010
(This article belongs to the Section Chemical Sensors)
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Abstract

The distribution of temperature and voltage of a fuel cell are key factors that influence performance. Conventional sensors are normally large, and are also useful only for making external measurements of fuel cells. Centimeter-scale sensors for making invasive measurements are frequently unable to accurately measure the interior changes of a fuel cell. This work focuses mainly on fabricating flexible multi-functional microsensors (for temperature and voltage) to measure variations in the local temperature and voltage of proton exchange membrane fuel cells (PEMFC) that are based on micro-electro-mechanical systems (MEMS). The power density at 0.5 V without a sensor is 450 mW/cm2, and that with a sensor is 426 mW/cm2. Since the reaction area of a fuel cell with a sensor is approximately 12% smaller than that without a sensor, but the performance of the former is only 5% worse. View Full-Text
Keywords: flexible multi-functional micro sensors; MEMS; PEMFC flexible multi-functional micro sensors; MEMS; PEMFC
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lee, C.-Y.; Fan, W.-Y.; Hsieh, W.-J. In-situ Monitoring of Internal Local Temperature and Voltage of Proton Exchange Membrane Fuel Cells. Sensors 2010, 10, 6395-6405.

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