Fuel Cells: Difference between revisions
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**Mentions the use of DME in page 12 (or 35 in pdf) to 15 (38 in pdf) | **Mentions the use of DME in page 12 (or 35 in pdf) to 15 (38 in pdf) | ||
**"High temperature direct DME PEM fuel cells | **"High temperature direct DME PEM fuel cells | ||
A way to completely mitigate the phase separation problem and simultaneously harvest the benefit of increased performance due to higher temperature would be to use a [[PBI]]-based PEM fuel cell system...This method has been proposed very recently and only 4 papers and a patent are available on the topic to date, with 3 of the 5 mentioned being from the authors group" | **A way to completely mitigate the phase separation problem and simultaneously harvest the benefit of increased performance due to higher temperature would be to use a [[PBI]]-based PEM fuel cell system...This method has been proposed very recently and only 4 papers and a patent are available on the topic to date, with 3 of the 5 mentioned being from the authors group" | ||
[[Category: Energy]] [[Category: Fuel Cells]] | [[Category: Energy]] [[Category: Fuel Cells]] | ||
Revision as of 01:03, 6 November 2022
Basics
- These are devices like batteries, but with oxygen and/or air as the oxydizer and a fuel (Usually gas or liquid excluding magnesium and zinc fuel cells)
- More Efficient Converters Than ICE's and ECE's
- Do not Produce Carbon Monoxide and other Byproducts due to lack of combustion
- Do produce waste heat (amount varys based on design) (This heat can also be harvsted via something like a turbine (such as a steam one) or a Stirling Engine to improve efficiency further
Specifications
- 40% is generally considered as the highest efficiency of hydrogen generation to usage with PEM fuel cells and electrolyzers. [1]
- Solution: distribute research worldwide and solve this by collaborative design.
- PEM - 2kW/kg of weight [2]
- PEM - $45/kw when manufactured on million-scale volume . [Ibid.]
- Comparison to batteries - So, 145 kg total for tanks + FC system + 5 kg hydrogen, delivering an EPA estimated range of 312 miles. That compares to 540 kg for the battery pack in a Tesla Model S with a rated range of 265 miles. [Ibid.]
Types
- Alkaline Fuel Cell
- Proton-Exchange Membrane Fuel Cell
- Solid Oxide Fuel Cell
- Flame Assisted Fuel Cell / Direct Flame Fuel Cell
- Molten Carbonate Fuel Cell
- Laminar Flow Fuel Cell
- Microbial Fuel Cell
Internal Links
- Zinc Air Battery
- Flow Battery
- Reversible Fuel Cell-Flow Battery
- Microbial Electrolysis Cell / Microbial Electrosynthesis
External Links
- The Wikipedia Page on Fuel Cells
- A subset of the Wikipedia Page on Fuel Cells with a great infographic
- Good overview statement on the technology and challenges - http://www.eesi.org/papers/view/fact-sheet-fuel-cells
- A 2014 Paper Titled "High Temperature PEM Fuel Cells and Organic Fuels"
- Mentions the use of DME in page 12 (or 35 in pdf) to 15 (38 in pdf)
- "High temperature direct DME PEM fuel cells
- A way to completely mitigate the phase separation problem and simultaneously harvest the benefit of increased performance due to higher temperature would be to use a PBI-based PEM fuel cell system...This method has been proposed very recently and only 4 papers and a patent are available on the topic to date, with 3 of the 5 mentioned being from the authors group"