Friday, August 29, 2014
Generating Electricity
Sources of energy
First thing you should know about voltage, current which may be DC or AC their frequency if you dont know them please see this post see me.
First thing you should know about voltage, current which may be DC or AC their frequency if you dont know them please see this post see me.
1: Energy stored in water:-
The potential energy of water at higher level is utilized for generation of electricity, water power is cheap where water is found in abundance, although capital cost of hydro power plant is higher than other power generation units, but their operating cost is very low.
2: Nuclear energy:- Controlled fission of heavily atoms such as U (235), Th (232) and artificial element like Pu(239) produce large amount of heat energy, which is then utilized on converting steam, which moves the turbine.
3: Wind energy
Wind can also used as energy source for power generation where suitable velocity is available. It only generates a small amount of electricity, which can operate small pumps at tube wells. Wind power has served many countries as power source in early days hence called wind mill.
4: Solar energy
Ray present in sun light are also used to convert water in steam, then this steam is used to move turbine to generate electricity.
Another important generation system of electricity is solar panel, which when place on sun light convert, it in to DC voltage, which then utilized to charge batteries or converted direct to AC voltage using inverter
5: Tidal energy
Ocean waves and tides contain large amount of energy, Such tides can be rise or fall, during rise time water can be stored and during fall time this stored water is utilized in moving turbines to produce electricity.
But this method is only applicable near ocean,where tides are often.
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