Abstract
Mathematical modelling of the unsteady-state of a unit molten carbonate fuel cell (MCFC) has been made. The behaviour of the fuel cell at the beginning of the operation is observed. The effects of the molar flow rates of gases and the utilization of fuel gas are studied. The current density decreases with time and reaches a steady-state value of 0.14Acm-2 at 0.58s for the chosen reference conditions. As the inlet gas-flow rates or the hydrogen utilization are increased, the time required to reach a steady-state decreases. With increased flow rates of the anode and cathode gases, the average current density is high and the total concentration is low. The current density increases with increasing utilization of hydrogen.
| Original language | English |
|---|---|
| Pages (from-to) | 9-16 |
| Number of pages | 8 |
| Journal | Journal of Power Sources |
| Volume | 137 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2004 Oct 5 |
Bibliographical note
Funding Information:This work was supported by the New & Renewable Energy Program in Korea. The authors acknowledge the financial support from the Korea Ministry of Trade, Industry and Energy through the R&D Management Center for Energy and Resources and the Korea Electro Power Research Institute (KEPRI).
Keywords
- Gas flow rate
- Hydrogen utilization
- Intial behaviour
- Molten carbonate fuel cell
- Unsteady-state
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
