1 of 17

Slide Notes

DownloadGo Live

Renewable Hydrogen

Published on Nov 18, 2015

No Description


Renewable Hydrogen

BY Smitty

what hydrogen is

and what it is used for

What this energy type is

  • Pure hydrogen gas
  • Not an energy source
  • Energy carrier like electricity
  • Requires utilizing a primary energy source
Photo by Mike Babcock

How it is captured and distributed

  • Many objects already have hydrogen attached to them
  • If taken, it can be burned...
  • ... or make electrical power
  • It is a primary energy source

Forms of energy

what forms hydrogen goes through

Electricity is formed by electrons flowing in a path. Stripping electrons from hydrogen would allow the electrons to flow freely.

Photo by Filter Forge

Hydrogen Cell

  • Anode is the first layer
  • Anode strips the atom of its electron 2H2 → 4H+ + 4e−
  • Proton exchange membrane is the second layer
  • Cathode is the third layer
  • Hydrogen bonds with oxygen and makes water
  • O2 + 4H+ + 4e− → 2H2O

History of hydrogen

how it evolved

It was Henry Cavendish (1731-1810), a British physicist, who was credited with the discovery of hydrogen in 1766.

History of Hydrogen Cells

  • The first fuel cell invented: 1801
  • First proton-exchange membrane invented:1950s
  • First hydrogen cell used for space travel: 1960

Usage Percentage and Cost

How much hydrogen is used and how much it costs

Hydrogen energy is about 1% of all energy used

Photo by Leo Reynolds

The cost is very cheap. About $0.0015 per gallon.

Photo by Great Beyond

5 benefits of hydrogen

Good things...

5 benefits

  • It is renewable
  • it is reletively chea
  • high efficiency
  • low heat means good for military
  • have no memory effect

5 possible drawbacks

...and the bad things

5 possible drawbacks

  • expensive to get gas
  • hard to store
  • highly flamable
  • not easy to replace infrastructure
  • dependancy on fossil fuel
Photo by Tortured Mind