Steam power plant basically operates on the Rankine cycle. Coal is burnt in a boiler, which converts water into steam. The steam is expanded in a turbine, which produces mechanical power driving the alternator coupled to the turbine. The steam after expansion in prime mover (turbine) is usually condensed in a condenser to be fed into the boiler again. In [...]
The important parts and auxiliaries of steam power plants are discussed in brief as follows:- 1. Steam Generating Equipment 2. Condensers 3. Evaporators 4. Feed Water Heaters 5. Prime Movers 6. Spray Ponds and Cooling Towers 7. Control Room 8. Switchyard 1. Steam Generating Equipment: (a) Boilers: Boilers or steam generators convert water into steam and form one of the [...]
In this article we will discuss about feed water and its heating in a steam power plant. The steam coming out of turbine is condensed and the condensate is fed back to the boiler as feed water. Some water may be lost due to blow-down, leakage etc. and to make up these losses additional water, called the make-up water, is [...]
In this article we will discuss about the meaning and types of draught. Meaning of Draught: In a boiler, the combustion of the fuel requires supply of sufficient quantity of air and removal of exhaust gases and this is achieved by draught system. The circulation of air is caused by a difference in pressure, known as draught. Thus the draught [...]