22-02-2013, 12:33 PM
ME2403 POWER PLANT ENGINEERING
POWER PLANT.docx (Size: 1,018.37 KB / Downloads: 43)
Explain layout of thermal (or) Steam power plant
The heat energy is converted into mechanical energy by the steam turbine and that mechanical energy is used for generating power with the help of generator .
The help of steam power plant consists of four main circuit.
1. coal and ash circuit
2. Air and flue gas circuit
3. Water and steam circuit
4. Cooling water circuit
Characteristics of steam power plant :
1. Low cost compared with hydrogen power plant
2. Reduced water requirement
3. Higher reliability and availability
Advantages :
1. Power production does not depends on nature of mercy
2. Initial investment is low
3. The time requirement for construction and commissioning of thermal power plant require less period of time
Drawbacks:
1. As compared to hydro electric power plant life and efficiency are less
2. Transportation of fuel is a major problem in this type of power plant
3. It cannot be used as a peak load power plant
4. The coal needed may be exhausted by gradual use
Explain layout of hydel power plant:
A hydroelectric power plant is aimed at harnessing from water flowing under pressure. In hydroelectric power plant the energy of water is utilized to drive the turbine (or) water power is important only next to the thermal power.