10. 
    fuel cell
    fuel cell A device that converts the chemical energy of a fuel directly into electricity and heat withoit combustion, through a process of oxidation. Fuel cells differ from conventional electrical cells in that the active materials; such as, hydrogen and oxygen, are not contained within the cell, b...
    Found op http://www.wordinfo.info/words/index/info/view_unit/3927/
    
    
11. 
    Fuel cell
    A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent. Hydrogen is the most common fuel, but hydrocarbons such as natural gas and alcohols like methanol are sometimes used. Fuel cells are different f...
    Found op http://en.wikipedia.org/wiki/Fuel_cell
    
    
12. 
    fuel cell
    cell that can change chemical energy from continuously supplied reactants to electric energy by an electrochemical process
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=482-01-05
    
    
13. 
    fuel cell
    a generator of electricity using chemical energy directly by ionisation and oxidation of the fuel
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=602-01-33
    
    
14. 
    fuel cell
    A cell in which a chemical reaction is used directly to produce electricity. The reactants are typically hydrogen and oxygen which result in water as a by-product. The water can then be used for cooling and human consumption. Fuel cells are generally used on manned spacecraft.
    Found op http://www.daviddarling.info/encyclopedia/F/fuel_cell.html
    
    
15. 
    fuel cell
    An electrochemical system in which the chemical energy of a fuel is converted directly into electrical energy. A fuel cell works in a similar way to a primary battery with the difference that the energy is not stored between the electrodes, but is instead transferred from an external tank. Because t...
    Found op http://www.daviddarling.info/encyclopedia/F/AE_fuel_cell.html
    
    
16. 
    fuel cell
    fuel cell, electric cell in which the chemical energy from the oxidation of a gas fuel is converted directly to electrical energy in a continuous process (see oxidation and reduction). The efficiency of conversion from chemical to electrical energy in a fuel cell is between 65% and 80%, nearly twice...
    Found op http://www.infoplease.com/ce6/sci/A0819819.html
    
    
17. 
    fuel cell
    Cell converting chemical energy directly to electrical energy. It works on the same principle as a battery but is continually fed with fuel, usually hydrogen and oxygen. Fuel cells are silent and reliable (they have no moving parts) but expensive to produce. They are an example of a renewable energy...
    Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0016001.html
    
    
18. 
    Fuel Cell
    An electrochemical engine (no moving parts) that converts the chemical energy of a fuel, such as hydrogen, and an oxidant, such as oxygen, directly to electricity. The principal components of a fuel cell are catalytically activated electrodes for the fuel (anode) and the oxidant (cathode) and an ele...
    Found op http://www.4cleanair.org/glossary.html
    
    
19. 
    fuelcell
    1) Battery
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/fuelcell/1
    
    

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