Fuel Cells: Difference between revisions

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(Added some more links under the "Internal Links" section)
(Added some more links under the "External Links" section)
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*[https://en.wikipedia.org/wiki/Fuel_cell#Efficiency_of_leading_fuel_cell_types A subset of the Wikipedia Page on Fuel Cells with a great infographic]
*[https://en.wikipedia.org/wiki/Fuel_cell#Efficiency_of_leading_fuel_cell_types 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
*Good overview statement on the technology and challenges - http://www.eesi.org/papers/view/fact-sheet-fuel-cells
*[https://backend.orbit.dtu.dk/ws/files/103337930/High_Temperature_PEM_Fuel_Cells.pdf 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"


[[Category: Energy]] [[Category: Fuel Cells]]
[[Category: Energy]] [[Category: Fuel Cells]]

Revision as of 01:02, 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

Internal Links

External Links

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"