Essay On Fuel Cells

Introduction
Fuel cells are electrochemical devices. It can convert chemical energy in fuel in to electrical energy directly with high efficiency and low environmental impact. Because the fuel cells are not limited by thermodynamics limitation of heat engines like Carnot efficiency further because combustion is avoided, fuel cell produces the power with minimum pollution. Fuel cells are unlit batteries. The reluctant oxidants in fuel cells are continuously refilled to allow the continuous operation. Fuel cells bear significant resemblance to electrolyze. In fact, some fuel cell operates in revers as electrolyze, giving a reversible fuel cells that can be used for energy storage.
Most fuel cells power systems,
• Unit cell (electrochemical

It can convert chemical energy in fuel electrochemically into electrical energy. The basic physical structure of fuel cell consists of an anode and cathode on either side.
In a typical fuel cell, fuel is fed continuously to the anode (negative electrodes) and an oxidant is fed continuously to the cathode. The electrochemical reaction take place at the electrodes to produce an electric current

Through the electrolyte, while driving a complementary electric current that perform work on load. Fuel cell stacking
For most particle fuel cell applications, unit cells must be combine in a modular faction in to a cell stack to achene the voltage and power. Output level required for the application. Generally, the starching involves connecting multiple units cells in series via electrically conductive inter connectors.
• Planner-Bipolar staking
• Stacks with tubular cells are some develop stakes How it works?

In the fuel cell device uses Hydrogen as a fuel to produce electrons protons heat and water. Fuel cell technology is based upon the simple reaction given