This is ppt about the steam power plant.In this ppt,whole concepts of steam power plant is covered.it is very helpful for student as well as business person for the presentation purpose.

1. Steam Power Plant
Created By
Vasoya
Raxit

2. Introduction
 A steam power plant converts the chemical
energy of the fossil fuels (coal, oil, gas) into
mechanical/electrical energy.
 The following two purpose can be served by a
steam power plant:
1) To produce electrical power.
2) To produce steam for industrial purposes.

3. Classification of steam power plants
 The steam power plants may be classified
as follows:
1. Central Stations : The electrical energy available from
these stations is meant for general state to the customers
who wish to purchase it . Condensing type.
2. Industrial power stations or captive power stations :This
type of power station is run by a manufacturing company
for its own use. Non-condensing type.

4. Advantage of condensing steam power
plants

5. Layout of a modern steam power plant
 The layout of a modern steam power plant
comprises of the following four circuits:
1. Coal and ash circuit
2. Air and gas circuit
3. Feed water and steam flow circuit
4. Cooling water circuit

7. Component of a modern steam power
plant
1. Boiler
2. Steam turbine
3. Generator
4. Condenser
5. Cooling towers
6. Circulating water pumps
7. Boiler feed pumps
8. Wagon tippler
9. Crusher house
10.Coal mill
11.Induced draught fans
12.Boiler chimney
13.Forced draught fans
14.Water treatment plant

8. Selection of site for steam power plant
1. Availability of raw material
2. Nature of land
3. Cost of land
4. Availability of water
5. Transport facilities
6. Ash disposal facilities
7. Availability of labour
8. Size of the plant

9. 1. Availability of raw material
 Modern steam power stations using coal or oil as fuel
require huge quantity of it per annum. A thermal power
plant of 400 MW capacity requires 5000 to 6000 tonnes of
coal per day.
 Therefore, it is necessary to locate the plant as far as
possible near the coalfields in order to save the
transportation charges.
 Besides transportation charges, a plant located away from
the coalfields, cannot always depend on the coal
deliveries in time.

10. 2. Nature of land
 The power plant should be on non fertile land and
away from human settlement.
 The minimum bearing capacity of the land should
be 1 MN/𝑚2.

11. 3. Cost of land
 Considerable area is required for the power
stations.
 The cost of the land for that purpose should
be reasonable.

12. 4. Availability of water
 The steam power plant should be near
abundant water supply.
 There is loss of water even when
condensing the steam and using it again.

13. 5. Transport facilities
 Availability of proper transport facilities is
another important consideration in locating
the thermal power station.
 It is always necessary to have a railway line
available near the power.

14. 6. Ash disposal facilities
 The ash handling problem is more serious than coal
handling because it comes out in hot condition and it is
highly corrosive.
 Its effect on atmospheric pollution are more serious as the
human health is concerned.
 Therefore, there must be sufficient space to dispose of
large quantity of ash.
 In a power station of 400 MW capacity 10 hectares area is
required per year if the ash is dumped to a height of 6.5
meters.

15. 7. Availability of labour
 During construction of plant enough labour
is required.
 The labour should be available at the
proposed site at cheap rate.

16. 8. Size of the plant
 The expenses involved in electric transmission
from a small plant are relatively severe , owing to
the impracticability of using high voltages, so that
the electric transmission feature alone becomes
dominant in the location of the plant.
 It case of large plants, the costs of transporting
enormous quantities of coal and water are
considerably high.