LAYOUT AND WORKING OF A TYPICAL THERMAL POWER PLANT WITH STEAM TURBINES AND ELECTRIC GENERATORS
- Basically, a central steam power station works on Rankine cycle in which steam is produced by firing of fuels in the boiler. Then it is used in prime movers, it expands, it is then condensed in the condensers used for the purpose of condensing steam.
- The condensed water is again fed into the boiler. In this cycle a number of modifications and improvements are being made so as to achieve the economy in cost and increase the thermal efficiency of the plant.
- The plant can be divided into the following main parts, namely:
(i) Fuel and ash circuit.
(ii) Air and gas circuit.
(iii) Feed water and steam circuit.
(iv) Cooling water circuit.