Fuel Cells: Difference between revisions

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*PEM - $45/kw when manufactured on million-scale volume . [Ibid.]
*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.]
*'''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.]
*This article states that hydrogen cannot be produced cheaply. However, if we use OSE's 1 cent/kWhr cost of electricity as documented in the [[Seed Eco-Home PV System]], with alkaline electrolyzers (see [[Hydrogen Production]], the cost of returning that electricity through solar hydrogen is 5 cents per kWhr. See [[Round-Trip Electricity from Hydrogen]].


=Designs Relevant to OSE=
=Prices=
==Membrane Needed==
*As low as $1.4/watt [https://www.horizoneducational.com/8-types-of-fuel-cell-by-price-point/t1418?currency=usd#:~:text=The%20fuel%20cell%20price%20can,be%20as%20high%20as%20%24%2015%2C000.]
*2.5 kW costs $15k above
 
=Types=
*[[Alkaline Fuel Cell]]
*[[Alkaline Fuel Cell]]
*[[Proton-Exchange Membrane Fuel Cell]]
*[[Proton-Exchange Membrane Fuel Cell]]
 
**[[Direct Methanol Fuel Cell]]
==Membraneless Fuel Cells==
**[[Direct Ethanol Fuel Cell]]
**[[Direct Dimethyl Ether Fuel Cell]]
*[[Solid Oxide Fuel Cell]]
*[[Flame Assisted Fuel Cell]] / [[Direct Flame Fuel Cell]]
*[[Molten Carbonate Fuel Cell]]
*[[Laminar Flow Fuel Cell]]
*[[Laminar Flow Fuel Cell]]
*[[Homogenous Fuel Cell]]
*[[Microbial Fuel Cell]]


==Other==
==Internal Links==
*[[Zinc Air Battery]]
*[[Zinc Air Battery]]
*[[Flow Battery]]
*[[Reversible Fuel Cell-Flow Battery]]
*[[Reversible Fuel Cell-Flow Battery]]
*[[Microbial Electrolysis Cell]] / [[Microbial Electrosynthesis]]


=Useful Links=
=External Links=
*[https://en.wikipedia.org/wiki/Fuel_cell The Wikipedia Page on Fuel Cells]
*[https://en.wikipedia.org/wiki/Fuel_cell The Wikipedia Page on Fuel Cells]
*[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)
**Pg 53 (76): "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]]

Latest revision as of 00:55, 11 December 2024

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.]

Prices

  • As low as $1.4/watt [3]
  • 2.5 kW costs $15k above

Types

Internal Links

External Links