| Autor: |
Al Shakhshir, Saher, Liso, Vincenzo, Berning, Torsten, Kær, Søren Knudsen |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Al Shakhshir, S, Liso, V, Berning, T & Kær, S K 2018, ' A Comparison of the Proton Exchange Membrane Fuel Cell Water Balance Measured Simultaneously with the Water Knock-out Method and Hot Wire Anemometry ', ECS Transactions, vol. 86, no. 13, pp. 199-209 . https://doi.org/10.1149/08613.0199ecst |
| DOI: |
10.1149/08613.0199ecst |
| Popis: |
The water balance of a proton exchange membrane fuel cell (PEMFC) can provide valuable insight into the state of the fuel cell. The most commonly applied method to measure the water balance is the knock-out method where the flaw gas of anode and/or cathode is cooled down and the condensed amount of water is weighed and compared to the amount of product water, while over the past years our group has developed a new method by applying hot wire anemometry at the anode outlet. In this work, a comparison between the knock-out and hot wire methods is experimentally demonstrated for 3.8 kW water-cooled PEMFC stack. The stack is run under wet conditions at different current densities and stoichiometric ratios. The hot-wire method has shown a higher sensitivity and an instant response for the measured water balance. Meanwhile, the knock-out method showed less sensitivity, much slower time response, and higher inaccuracies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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