Abstract
In this study, a model based diagnosis of a hydrogen-fueled 1-kW proton exchange membrane fuel cell (PEMFC) system was conducted based on exergy analysis to identify faulty components. Faulty components of balance of plant (BOP) were experimentally simulated by reducing the rpm signals of the pump, fan, and air and fuel blowers; reducing the output signals of the air and fuel flow meters; increasing the output signal of the temperature sensor; opening the valve between the air blower and the air flow meter; and blocking the heat exchange area during the operation of the PEMFC system. The irreversibility rate, malfunction (MF) and dysfunction (DYS) of each component were calculated for the case under normal condition and simulated failure conditions using the observed data. The residuals of the MF and relative malfunction (RMF) between the normal and failure conditions were the fault indicators used to identify the faulty components in the system. The proposed diagnosis method employing both the MF and the RMF was found to be not only simple but also effective.
| Original language | English |
|---|---|
| Pages (from-to) | 17745-17758 |
| Number of pages | 14 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 45 |
| Issue number | 35 |
| DOIs | |
| Publication status | Published - 2020 Jul 10 |
Bibliographical note
Funding Information:This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government ( MOTIE ), ( 20173010032150 , Development of Smart Fault Diagnosis and Maintenance Technology to Improve Durability of PEM Fuel Cell Systems).
Publisher Copyright:
© 2020 Hydrogen Energy Publications LLC
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
