Marathwada Mitra Mandal's
COLLEGE OF ENGINEERING
Karvenagar,Pune
Presentation On
Fuel Cell
BY
ANUSHKA SOLANKI SM 110
ATHARVA KHER SM 113
FUEL CELL
WHAT IS FUEL
CELL?
A fuel cell is a electrochemical device that combines hydrogen and oxygen
to produce electricity with water and heat as its by-products .As long as
fuel cell is supplied , the fuel cell will continue to generate power . Since the
conversion of the fuel to energy takes place via an electrochemical
process, not combustion , the process is clean , quiet and highly efficient two or three times more efficient than fuel burning.
CONSTRUCTION AND
WORKING
A fuel cell consists of following parts
• Two electrodes (Anode and cathode)
• Two catalyst layer
• An electrolyte
The two electrodes sandwiched around an
electrolyte. There is an catalyst layer between
electrodes and electrolyte
TYPES OF FUEL
CELL
Types of fuel cells are:• Polymer electrolyte membrane fuel cells.
• Direct methanol fuel cells.
• Alkaline fuel cells.
• Phosphoric acid fuel cells.
• Molten carbonate fuel cells.
• Solid oxide fuel cells.
• Reversible fuel cells.
PROTON EXCHANGE
MEMBRANE FUEL CELL
• PEMFC is operated at low temperature of 50 ℃ to 1 00℃
• Efficiencies of PEMFC is in the range of 40-60%
Reactions
At the Anode:
H₂→ 2H⁺ + 2eAt the Cathode:
0.5O₂+2H⁺ → + 2eOverall Reaction:
H₂ + 0.5O₂ → H₂O
DIRECT-METHANOL FUEL CELLS
• The direct-methanol fuel cell (DMFC) is similar to the PEM cell in that it uses a proton conducting
polymer membrane as an electrolyte.
• However, DMFCs use methanol directly on the anode, which eliminates the need for a fuel reformer.
• DMFCs are of interest for powering portable electronic devices, such as laptop computers and battery
rechargers.
• Methanol provides a higher energy density than hydrogen, which makes it an attractive fuel for
portable devices.
ALKALINE FUEL CELLS
• Alkaline fuel cells use an alkaline electrolyte such as potassium hydroxide or an alkaline membrane
that conducts hydroxide ions rather than protons.
• Originally used by the National Aeronautics and Space Administration (NASA) on space missions,
alkaline fuel cells are now finding new applications, such as in portable power.
SOLID OXIDE FUEL CELLS
• Solid oxide fuel cells use a thin layer of ceramic as a solid electrolyte that conducts oxide ions.
• They are being developed for use in a variety of stationary power applications, as well as in auxiliary
power devices for heavy-duty trucks
• Operating at 700°C–1,000°C with zirconia-based electrolytes, and as low as 500°C with ceria-based
electrolytes, these fuel cells can internally reform natural gas and biogas, and can be combined with a
gas turbine to produce electrical efficiencies as high as 75%.
APPLICATIONS OF FUEL CELLS
• Fuel cell electric vehicles, or FCEVs, use clean fuels and are therefore more ecofriendly than internal combustion engine-based vehicles.
• They have been used to power many space expeditions including the Appolo
space program.
• Generally, the byproducts produced from these cells are heat and water.
• The portability of some fuel cells is extremely useful in some military
applications.
• These electrochemical cells can also be used to power several electronic
devices.
• Fuel cells are also used as primary or backup sources of electricity in many
remote areas.
References
• https://www.sciencedirect.com/science/article/abs/pii/S136403211100
4709
• https://sv.20file.org/up1/482_0.pdf