Fuel Cells: Difference between revisions
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=Specifications= | =Specifications= | ||
*40% is generally considered as the highest efficiency of hydrogen generation to usage with PEM fuel cells and electrolyzers. [https://energypost.eu/the-lowdown-on-hydrogen-part-2-production/] | *40% is generally considered as the highest efficiency of hydrogen generation to usage with PEM fuel cells and electrolyzers. [https://energypost.eu/the-lowdown-on-hydrogen-part-2-production/] | ||
**Solution: distribute research worldwide and solve this by collaborative design. | |||
*PEM - 2kW/kg of weight [https://energypost.eu/the-lowdown-on-hydrogen-part-1-transportation/] | *PEM - 2kW/kg of weight [https://energypost.eu/the-lowdown-on-hydrogen-part-1-transportation/] | ||
*PEM - $45/kw when manufactured on million-scale volume . [Ibid.] | *PEM - $45/kw when manufactured on million-scale volume . [Ibid.] |
Revision as of 20:42, 12 August 2020
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.]
Designs Relevant to OSE
Membrane Needed
Membraneless Fuel Cells
Other
Useful 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