Abstract
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 Ω. Experimental results demonstrate that temperature is almost linearly related to resistance and that accuracy and sensitivity are 0.5 °C and 1.93×10-3/°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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
