Online monitoring of fuel starvation and water management in an operating polymer electrolyte membrane fuel cell by a novel diagnostic tool based on total harmonic distortion analysis
| Autor: | S. Vinod Selvaganesh, Akhila Kumar Sahu, N.J. Steffy, Madan Kumar L |
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| Rok vydání: | 2018 |
| Předmět: |
Total harmonic distortion
Materials science Hydrogen Renewable Energy Sustainability and the Environment business.industry 020209 energy Energy Engineering and Power Technology Proton exchange membrane fuel cell chemistry.chemical_element 02 engineering and technology Electrolyte Low frequency 021001 nanoscience & nanotechnology Cathode Anode law.invention chemistry law Harmonics 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology Process engineering business |
| Zdroj: | Journal of Power Sources. 404:81-88 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2018.10.012 |
| Popis: | The present study deals with a novel diagnostic tool for fuel and water management problems by analyzing the harmonics on an operating polymer electrolyte membrane fuel cell. In this method, a low frequency signal is applied to the fuel cell and the total harmonic distortion contained in the resulting signal is observed under different conditions. The total harmonic distortion is used to monitor and identify the conditions online such as anode drying, anode flooding, hydrogen starvation and cathode flooding prevailing in the cell. This is done by identifying a set of indicator frequencies correspond to the aforementioned critical conditions. Through empirical studies, it is shown that frequency responses lead to a high total harmonic distortion value indicating critical conditions and provide an accurate diagnostic method to detect an even slightly degraded state. These results successfully demonstrate the promise of the proposed method in overcoming performance losses by efficient online monitoring of fuel cells. The relation between the health of the fuel cell and the variations in the harmonics present in the studied signal is characterized and utilized for the diagnostic studies of polymer electrolyte membrane fuel cell. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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