welcome l about l your suggestions  
 
 
on-line information for energy and environment professionals
biomass   fuel cells   hydrogen   energy efficiency
 
 
  Fuelcell: Phosphoric Acid Fuel Cells (PAFC)
 

Introduction l

Direct Methanol l

Alkaline l

Proton Exchange Memb. l

Solid Oxide l

Molten Carbonate l

Phosphoric Acid l

   

 

 

The PAFC is one of the oldest and therefore most established fuel cell technologies, and is currently used in a number of power generation projects.

This type of cell uses phosphoric acid as electrolyte, and is able to reform methane to a hydrogen-rich gas mixture.

It operates at temperatures around 200°C, so the waste heat is not of a high enough quality to be used in cogeneration applications. However, this heat is used in reforming the methane, and may also be utilised for space heating or hot water.

 

This type of cell can also run on different fuels, such as alcohols (e.g. methanol and ethanol), though care must be taken in all cases to avoid poisoning the anode by carbon monoxide and hydrogen sulphide which may be present in the reformed fuels.

Such poisoning would result in a gradual reduction in performance and the eventual failure of the cell.

Japan is particularly advanced in PAFC research and design, with power plants from a few kilowatts to a few megawatts already in operation.

The major corporations are all in evidence, among them Toshiba, Fuji and Mitsubishi: for them, Japan's lack of natural resources can represent a factor of competitive advantage, making possible to introduce such technology upon the market at a higher price than would be possible in many other regions.

For further information contact David Hart (email: firstname.lastname@e4tech.com) from E4tech

 

 
 
 
e-sources ©2014, E4Tech - please email comments to webmaster @ e-sources . com  ^ Top