Oct 31, 2015
Seminar on Polymer Exchange Membrane Fuel Cell
Fuel cells is an electro-chemical energy conversion device which convert energy from chemical reactions into electrical energy in an efficient, clean and quiet manner. This is typically 2 to 3 times more efficient than an internal combustion engine in converting fuel to power. This seminar report focuses on "Polymer exchange membrane (PEM) fuel cells" or proton exchange membrane fuel cells. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such projects and seminar.
Polymer electrolyte membrane (PEM) fuel cells are also called proton exchange membrane fuel cells. The proton exchange membrane (PEM) fuel cell has shown in below figure uses a solid polymer electrolyte (perfluorosulphonic acid membrane) in the form of a thin, permeable sheet for the transport of proton.
Anode and cathode catalyst used generally is platinum, Pt-black or Pt/Ru catalyst. The proton exchange membrane (PEM) fuel cell uses a solid polymer electrolyte (perfluorosulphonic acid membrane) in the form of a thin, permeable sheet for the transport of proton. Generally, platinum, Pt-black or Pt/Ru catalyst is used as anode and cathode catalysts respectively.
In PEMFC, powers are encouraged persistently to the anode and an oxidant is sustained consistently to the cathode. At the surface of the anode impetus, powers are changed over into protons (H+) and electrons (e-). The protons go through a PEM, which denies electrons, to the cathode side.
The electrons (e-) are compelled to go through an outside wire and convey a portion of their vitality to a "heap" on their way to the cathode. At the cathode, the exchanged protons and the vitality exhausted electron consolidate with oxygen to deliver water. Hypothetically, any substance equipped for concoction oxidation that can be supplied ceaselessly can be utilized as a fuel at the anode of power device. So also, the oxidant can be any liquid that can be lessened at an adequate rate.
Proton exchange membrane fuel cell (PEMFC) was the first sort of energy component to discover an application (force hotspot for NASA's Gemini space flights in the 1960s). These first PEMFC's contained a few issues concerning the electrolyte, specifically low proton conductivity and mechanical debasement. The arrangement came in mid-1960 when another kind of film was produced. This new layer was a sulphonated tetrafluorethylene co-polymer with fabulous warm and mechanical solidness, known as Nafion. The polymer layer is the PEMFC's center.
To be actualized in the power module it must include specific attributes, for example, high proton conductivity, must be an effective boundary to forestall blending in the middle of fuel and the oxidant, and must be artificially and mechanically stable.
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The proton exchange-membrane (PEM) constitutes a crucial part of PEM fuel cells and warrants a careful study. It serves as a solid electrolyte that conducts protons from anode to cathode as well as a separator of reactant gases.
The PEM fuel cells under scrutiny showed their enormous potential producing electrical energy with an impressive efficiency, between 40% and 60%, when compared for example, with internal combustion engines. The byproducts of the whole energy generation process are oxygen and hot water. It is also possible the use of the generated hot water in domestic and industrial processes. The main factors that control the performance of a PEMFC equipped with a membrane Nafion were investigated using a response surface methodology.
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