2012年6月3日日曜日

Future source of energy, fuel cell


Future source of energy, fuel cell

Electricity is essential for our lives.
Electricity from that it is very easy to handle,
Has been used in a variety of applications, electricity is now for mankind
This energy can be called lifeline.
Now, is this electric current is mainly thermal power generation and
Have been made by nuclear power.
Movement toward nuclear power generation from thermal power generation to try to change has come out.
This thing is a source of fuel oil-fired power is a finite resource,
Oxide such as sulfur dioxide and nitrogen caused by global warming and thermal power
Become a problem because of acid rain.
However, there is a power generation nuclear power generation is also dealing with radioactive material,
Issues such as waste disposal of radioactive material control and power generation
Still remains a major challenge has been, and power generation method is not exactly the ideal way.


Long, with an emphasis on effective use of resources and environmental impact
It has long been considered power generation scheme,
Fuel cell has been a promising new source of electrical energy.
Currently, attention has been automotive and fuel cell energy source,
Consider this fuel cell and battery Why what on earth.
Battery is not producing electricity through chemical reaction,
Produces electricity by chemical reaction in the same way as ordinary fuel cells batteries.
However, fuel cells and other cells are characterized by significantly different.
By supplying a fuel cell (fuel =) substance that causes a chemical reaction,
Has to be able to produce electricity continuously.
Battery and fuel cell than you think just in that sense,
Should consider a kind of power generation equipment and might have a point.


Fuel cells generate electricity principle is very simple.
I think people in the school science experiment, was carried out the electrolysis of water is large.
Device is the electrolysis of water into hydrogen and oxygen over those electricity to the water,
Fuel cell is using exactly the opposite principle of electrolysis of water.
That is, the electricity generated in the reaction for obtaining water by reacting hydrogen and oxygen
Retrieve the device is a fuel cell.
Fuel for fuel cells is hydrogen and oxygen, can be obtained very easily.
In addition, hydrogen is a very dangerous substance is highly explosive,
The fuel cell does not use hydrogen as a fuel directly.
Hydrogen from the chemical LP gas, natural gas, such as methanol
The reaction was carried out while still fetching.
Therefore, the accident such as that stored hydrogen have such an explosion does not occur.
Has become a stable mechanism to supply hydrogen safely, obtain electricity.


Although this is a fuel cell,
Very low incidence of toxic substances (1),
There is a range of fuel source (2), can respond flexibly to 渇枯 problem of resources,
Power generation efficiency (3) is relatively high,
Fuel cell (4) is also a generator, eliminating the transmission loss from the power company,
Use of resources can be finite,
Can use the heat generated when the electric power generation (5),
There are advantages and so on.
Fuel cell in the future, it will likely become available in a variety of fields.
May be the time will come when one in the family units, the fuel cell will be established.