How is electricity produced in Hydro-electric power stations and oil fired power stations?

Question

explain plz?

Answer 1

A Hydro-electric Power Station uses the 'Potential Energy' (P.E.) of a large, dammed lake situated at a high point above the Power Station.
When the water is released (under control) and is allowed to flow by a pipeline to the power station, the P.E. is converted to 'Kinetic Energy' (K.E.) due to the force of the flowing water.
This energy is converted to 'Mechanical Energy' in driving powerful water turbines.
The turbines are connected by shafts to the 'Power Generators' where the mechanical energy is converted to 'Electrical Energy' which is then fed into the Power Grid and distributed to Industrial and Domestic users who convert the electrical energy into Heat, Light, Mechanical Energy of appliances...motors, compressors...etc...etc.

The Oil Fired stations have exactly the same sequence of conversions but, start with Fossil Fuel-fired boilers, (coal or oil), that produce high pressure, superheated steam which is used to perform the same function as the K.E. of the water (above), in driving the turbines.
(Gas turbines (very similar to jet-engines), are also used in the same way...these use burning gases in a stream of compressed air. This increases the thermal energy of the air (to about 900°C) and, greatly increases its volume.
This high energy air is then used to drive the gas turbines after which follow the same energy conversions as above).

Answer 2

Sorry. You are asking for about five textbooks worth of information, and it just won't fit here, even if we had time to type it up.

Take a course in Electricity and Magnetism in the physics department, or a course in Power Generation in the electrical tech department at the community college.

If you need it sooner, go to the library and ask for books on power generation. Or you could do an internet search on "electric power generation."

Sorry. It's just too big a subject.

Answer 3

In both cases the energy coming in is used to spin a turbine that rotates a coil in a magnetic field and that is where the electricity comes from.

In the case of hydroelectric power the water falls through a turbine and gives up its potential energy to spin the turbine shaft which is connected to a generator (coil with magnetic field).

In the case of oil fired power the heat from the fire turns water to steam and the steam goes through a turbine and gives up its thermal energyt to spin the turbine shaft which is connected to a generator (coil with magnetic field).

Answer 4

as the old saying before albert einstein time, energy cannot be created but can only be transformed

hydro-electric energy is tranformed from water mechanical to electrical.

oil-fired energy is transformed from heat to electrical.