the Hydrogen Economy
The hydrogen economy a potential system to replace a carbon based energy system. There are advantages to such a change:
- reduced overall carbon emissions.
- electricity is generated on demand.
- the use of hydrogen gas as a fuels as 1 kg of hydrogen contains the same energy as 2.5 kg of natural gas or 2.7 lk of petrol.
- internal combustion engines can reengineered to use hydrogen as a fuel.
But there issues with a change to a hydrogen based economy.
One claim is that a lot of energy is wasted and only 25% of the energy is available for practical use (physorg, 2006).
Hydrogen and fuel cells
The hydrogen fuel cell generates electricity on demand from the hydrogen fuel supply.
(physorg, 2006) www.physorg.com
The Hydrogen economy