ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The fuel cell has the potential to become an indispensable source of electric power.However, some problems have not yet been resolved. Measuring the temperature and humidityinside the fuel cells is currently difficult. Accordingly, in this study, micro sensors were fabricatedwithin the fuel cell, in which the temperature and humidity distributions were measured.The substrate of the fuel cell was made of stainless steel (SS-304) and etching was employed tofabricate the channel on the stainless steel substrate. Then micro-electro-mechanical-systems(MEMS) technology was used to fabricate the array micro temperature and humidity sensors on therib of channel of stainless steel. The advantages of array micro temperature sensors are their smallvolume, their high accuracy, their short response time, the simplicity of their fabrication, their massproduction and their ability to measure the temperature at a precise location more effectively thanthe traditional thermocouple. The micro humidity sensors were made from gold and titanium asdown and up electrodes in the channel. The performance curve of the single cell was operating at41.54 °C and gas flow rates of H2/O2 at 200/200ml/min. The max power density of the bipolar withmicro sensor was 56 mW/cm2
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.364-366.861.pdf
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