All the above-mentioned plants utilize as power source the energy from expanding gas, steam or combustion gases obtained after fuel burning in the boiler. These hot gases and heat convert the water into high pressure steam which traverse a turbine and push the propeller-type blades containing in it. This movement of blades provoke the rapid rotation of turbine shaft. At the end of the turbine shaft is installed a generator which consists of carefully wound wire coils which are rapidly rotated in a strong magnetic field and as result is generated electricity. After traversing the turbine, the steam is condensed and returned to the boiler to be heated in repeated cycles.
Later on the generated electricity for efficient transmission to high voltage power grids is transformed to obtain higher electric tension (up to 400,000 volts). For safer supplying to end-users before consumption points, like households and businesses, in the substation units and further transformers the electricity is transformed anew to 220 or 380 voltage tension.
Improvements are continually performed in designs of fossil-fuel power plants and are implemented upgrading technologies that allow to be produced more energy from less fuel, also known as improving the thermal efficiency of the power plant. The growth of efficiency in generation of electricity in fossil-fuel power plants it is decisively important in reducing CO2 emissions worldwide.
Efficiency enhancements include the most cost-effective and fastest executed actions to reduce emissions from electricity generation in fossil-fuel power plants especially in developing countries where efficiency of existing power plants is commonly lower and utilization of fuel is increasing.
To efficiently use the natural resources, land and manpower, in the same facility can be installed many generator installations. To find out more information on this matter please visit the page of MULTI-UNIT POWER PLANTS