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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Effect of the corrugated bipolar plate design on the self-humidification of a high power density PEMFC stack for UAVsстатья
- Авторы: Nefedkin Sergey I., Klimova Mariya A., Glasov Vasiliy S., Pavlov Vladislav I., Tolmachev Yuriy V.
- Журнал: Fuel Cells
- Год издания: 2021
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Номер статьи: 202000163
- Аннотация: Open-cathode PEMFCs for unmanned aerial vehicles operate at a near-ambient temperature, which requires high super-stoichiometric air flow rates to remove heat. This, in turn, makes the stack vulnerable to drying out. Using a combination of experimental measurements with a 1.2 kW stack and 3D multiphysics modelling, we show that the design of the corrugated metal bipolar plate with a height above the commonly used 1.05 mm and with cathode cooling channels wider than air-suppling channels allows for a more efficient heat removal at lower air flow rates, thus assuring a wider range of operating parameters, while maintaining adequate hydration. The self-humidifying stack attains 1000 W kg−1 power, and the full system with a nominal runtime of 4 h attains specific energy of 700 Wh kg−1.
- Добавил в систему: Толмачёв Юрий Вячеславович