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HYDROGEN FUEL CELLS & ENERGY EFFICIENCY. By: Claudio Bolzoni David Carlos Echeverria Andres Segura Dari Seo. FUEL CELLS. Definition: electrochemical cell that converts a source fuel into an electrical current.

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hydrogen fuel cells energy efficiency

HYDROGEN FUEL CELLS&ENERGY EFFICIENCY

By:

Claudio Bolzoni

David Carlos Echeverria

Andres Segura

Dari Seo

fuel cells
FUEL CELLS
  • Definition: electrochemical cell that converts a source fuel into an electrical current.
  • The fuel cell generates electricity through reactions between a fuel and an oxidant.
hydrogen fuel cells
Hydrogen Fuel Cells
  • A hydrogen fuel cell uses hydrogen as its fuel and oxygen as its oxidant.
  • Its very similar to a battery but it has its differences.
  • Discovered by Christian FiredrichSchönbien in 1838
benefits
Benefits

Reduction in burning of fuel cells

Improvement of air quality especially in urban areas

Reduction of greenhouse gases (global warming)

Low noise and high power

Reduction in energy consumption (saving energy)

problems
Problems

Cost

Durability

Hydration

Delivery

Infrastructure

Storage

Safety

examples
Examples

Vehicles

Bicycles

Rockets

Airplanes

Buses

Motorcycles

Scooters

hydrogen automobile
Hydrogen Automobile
  • An alternative fuel vehicle which uses hydrogen as its fuel.
  • Chemical energy in hydrogen is converted into mechanical energy.
  • Funding comes from both private and government sources.
  • Cost around $400,000.
  • "It's still a ways away from commercialization"
slide9

BENEFITS

  • Reduce greenhouse gases
  • Reduce dependency on oil
  • Technological development

PROBLEMS

  • Expensive
  • Needs hydrogen gas stations
  • "A hydrogen car is one of the least efficient, most expensive ways to reduce greenhouse gases.“ U.S Department
hydrogen rocket
Hydrogen Rocket

BENEFITS

  • Highest effective exhaust velocity
  • Lower weight
  • Velocity change (lift off weight is less)
  • Works well in upper stages

PROBLEMS

  • Low density, needs insulation (weight)
efficiency
Efficiency
  •  Dependent on the amount of power drawn from the fuel cell
  • For a hydrogen cell operating at standard conditions with no reactant leaks, the efficiency is equal to the cell voltage divided by 1.48 V, based on the reaction.
  • The more current drawn, the lower the efficiency
  • The efficiency of a cell is almost proportional to its voltage.
  • Do not operate in thermal cycle
video link
Video Link
  • www.auto.howstuffworks.com/fuel-efficiency/alternative-fuels/fuel-cell.html