Analysis of a 3 kW PEM Fuel Cell Stack Developed by ITRI
M. H. Tsai, Y. Y. Yan, H. S. Chu, R. J. Shyu +1
AI summary
70% confidenceA 3kW PEMFC power generation system is developed with a 3kW PEMFC stack as its key component, achieving 30% power generation efficiency and 67% total energy efficiency with hot water recovery.
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Abstract
A 3kW PEMFC power generation system is developed by Energy and Resources Laboratories in 2002. This system integrates hydrogen storage, fuel reformer, power conversion, hot water tank as well as a 3kW PEMFC stack. The power generation efficiency at 30% and total energy efficiency with hot water recovery at 67% are designed. The stack is key component of this system, and its performance is tested and analyzed before it is integrated into the system. This paper presents its performance in I-V polarization curves with controlling parameters such as fuel cell operating temperature, air humidity, hydrogen humidity and stoichimetric ratio of air. Detailed discussions are given for the effect of each parameter on stack’s performance.
Key findings
- The stack's performance is affected by fuel cell operating temperature, air humidity, hydrogen humidity, and stoichiometric ratio of air.
- I-V polarization curves are used to analyze the stack's performance under different controlling parameters.
- The system's total energy efficiency is improved by 37% with hot water recovery.
Keywords
Identifiers
- Journal
- 2nd International Conference on Fuel Cell Science, Engineering and Technology
- Year
- 2003