Energy

Clean

How a fuel cell works .



A fuel cell has a main component which is called the stack. In this stack a controlled process of burning hydrogen and oxygen to water is taking place . A stack consists of two shells that are placed with the hollow side together with a partition membrane that will only let hydrogen
protons pass. Oxygen is lead to one side of the membrane and hydrogen to the other. The hydrogen will split in H+ and go through the membrane. The negative electron will flow to the oxygen through the electrical circuit. The oxygen will take the electron and become negatively charged attrackting the H+ proton and form a watermolecule. The energy is then released in the form of electricity with an efficiency of 40 to 60% . In addition, the stack also generates heat , at the low temperature watercooled stack in the form of warm water and at the high temperature aircooled stack in the form of hot air.

 

                                        

 

 

 

 


A fuel cell can be made to operate at a low temperature of 80 ˚ C or at a high temperature of 800 C. ˚ The difference is mainly in the membrane which is used to overrun . The electron At the low temperature stack is a polymer electrolyte membrane (PEM ) is used , as a separation between the hydrogen and the oxygen . At the high temperature stack , the separation between hydrogen and oxygen in a ceramic way realized. These ceramic solution is less sensitive to impurities in the hydrogen , as occurs in reformatted gases from propane, liquefied natural gas and diesel .

- Brimos Emergency fuel cell 1 KW 220 V

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