ABSTRACT:
Problems with present energy system:
One of the major sources of power is the engines. These are presently used for transport and for other applications. The fuels to these engines are nothing but the products obtained from fractional distillation of petroleum. But the petroleum reserves get depleted day by day. More over their cost is more and hazardous emissions lead to the green house effect which in turn leads to global warming. Incomplete combustion produces carbon monoxide which depletes the ozone layer. These are the problems our environment faces today.
Alternate fuel to solve the problem:
As engineers we must provide some suitable solution for this. Many solutions like alternate fuels (jetropa oils) are developing. Another area which is more hopeful is this fuel cell. This paper discusses about this fuel cells in a way that it gives a good knowledge about fuel cells for people who read this. Since there are more kinds of fuel cells, this paper has been narrowed down to PEM fuel cell which uses only hydrogen as a fuel to produce power.
Inference:
Hydrogen is available in plenty. So no fear that this may end up as like petroleum. The bye product is nothing other than water. So there is no hazard to environment. Same water can be used to produce hydrogen by passing current into water. It does not create any noise pollution as like a generator. These are some points to be highlighted in PEM fuel cells.
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