Novel Method for Measuring Temperature Distribution within Fuel Cell using Microsensors

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概要

• 論文の詳細を見る

• A fuel cell has the potential to become an important source of electric power. However, measuring the temperature inside the fuel cell is difficult. Hence, in this investigation, an array of microsensors is set up inside the fuel cell to measure the temperature distribution. The substrate of a bipolar plate in the fuel cell is stainless steel (SS-316) and an electroforming technique is implemented to fabricate channels in the stainless steel substrate. Then micro-electro-mechanical system (MEMS) technologies are employed to fabricate a platinum temperature sensor on the rib of a channel in the stainless steel substrate. In this experiment, the temperature of microsensor is measured to range from 31 to 80 °C and its resistance ranges from 0.593 to 0.649 $\Omega$. Experimental results demonstrate that temperature is almost linearly related to resistance and that accuracy and sensitivity are 0.5 °C and $1.93\times 10^{-3}$/°C, respectively. The performance curves of a single fuel cell operating at 34 °C and H2/O2 gas flow rates of 50/50 ml/min are determined. The maximum power density is 170 mW/cm2 and the current density is 513 mA/cm2.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2007-05-15

著者

• Hsieh Chi-Lieh

  Department of Mechanical Engineering, Fuel Cell Research Center, Yuan Ze University, Taoyuan, Taiwan, R.O.C.

• Lee Chi-Yuan

  Department of Mechanical Engineering, Fuel Cell Research Center, Yuan Ze University, Taoyuan, Taiwan, R.O.C.

• Wu Guan-Wei

  Department of Mechanical Engineering, Fuel Cell Research Center, Yuan Ze University, Taoyuan, Taiwan, R.O.C.

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• Novel Method for Measuring Temperature Distribution within Fuel Cell using Microsensors

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