Design considerations for miniaturized PEM fuel cells
| Autor: | Helen L. Maynard, Jeremy P. Meyers |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Engineering
Silicon Current distribution Renewable Energy Sustainability and the Environment business.industry Production cost Electrical engineering Energy Engineering and Power Technology chemistry.chemical_element Proton exchange membrane fuel cell Thermal management of electronic devices and systems Automotive engineering chemistry Fuel cells Air movement Electrical and Electronic Engineering Physical and Theoretical Chemistry business Fuel delivery |
| Zdroj: | Journal of Power Sources. 109:76-88 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/s0378-7753(02)00066-6 |
| Popis: | In this paper, we consider the design of a miniaturized proton-exchange membrane (PEM) fuel cell for powering 0.5–20 W portable telecommunication and computing devices. Our design is implemented on a silicon substrate to take advantage of advanced silicon processing technology in order to minimize production costs. The reduced length scales afforded by silicon processing allow us to consider designs that would be prohibited by excessive Ohmic losses in larger systems. We employ a mathematical model to quantify the effects of the secondary current distribution on two competing cell designs. In addition to the design of the cell itself, we discuss key integration issues and engineering trade-offs relevant to all miniaturized fuel cell systems: air movement, fuel delivery and water balance, thermal management and load handling. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect