Hydroelectric power Generation

Abhishek dwivedi

1882 World first hydroelectric power plant began operation on

the fox river (America)

In India first hydroelectric power plant is started in Mysore in 1902

having capacity 4.2 mw

Today About 21% (38106mw)of India & 30% (5000Gw)of world

electricity comes from hydropower

Introduction

In hydropower water is utilized to move turbines which in turn run

the electric generator's

The potential energy of water stored in the dam gets converted

into kinetic Energy of the moving water in the penstock & this

kinetic gets converted into the Electrical Energy with the help of

turbine &generator

Top Five Hydroelectric Power Plant’s in

World

1-Three Gorges (china) … 22500MW

2-The itaipu (border of brazil&paragui) …14000MW

3-Guri Power (venezuela)…10200MW

4-Tucurui (brazil)…8370MW5-Grandcoulee( columbia)…6809MW

ThreeGorges(china)

...22500MW

.It is the first largest hydroelectric power

plant in world….(1993-2012)

Height (181m),&(2035m)long.

.In this used total 32 turbine’s and

each turbine produced700MW,&

Two turbine’s 50MW.

The itaipu (brazil&paraguyborder).

...14000MW

.It is second largest

hydroelectric power plant in

world… (1975-1982)

Power generation is started in 1984

ltaipu

.It is used 20 generating unit’s each produce 700MW.

Guripower

(venezuela)…10200

MW

.It is third largest hydroelectric

power plant…(1963-1986)

.It is used 20 generating unit’s,of

different capability ranging

130,770MW.

Tucurui

(brazil)…8370MW

It is the fourth largest hydroelectric power plant of

world.

It is devlop in two phase.is’t phase (1997-1984)&second

phase(1998-2010).

It is 11 Generating unit’s

capability ranging 370MW.

Grandcoulee

(columbia)…6809MW

.It is the fifth largest hydroelectric

power plant in the world.(1933-

1950)

.It is used 18 francis turbine 125MW & three francis turbine 10MW.

India largest hydroelectric

power plant’s1.) The Tehri Dam – is the highest dam in India and tenth tallest

dam in the world. It is a multi-purpose rock and earth-fill embankment

dam on the Bhagirathi River near Tehri in Uttarakhand, India.

Capacity (2400)mw

(1978-2006)

2.) The Koyna Hydroelectric Dam –is the

second largest hydroelectric power plant of

India. The total Installed capacity of the project

is 1,960 MW. Near Patna ,satara district

(koynanagar) (1962 -1981)

working…

DAMA Dam is barrier, which confines or raise water for storage

Diversion to create a hydraulic head

Generally made of concrete,rockfill or timber

Head &Flow

Penstock

Penstock is the connecting pipe between the dam &the

turbine house.

It helps to increase the kinetic energy of water coming from

the dam.

Penstock is made up of a very strong material. steel, ductile

iron or polyethylene.

steel, penstocks

Polyethylene penstock

Valve

Valve: This the equipment which is use to pressure of flow

of water.

Turbine &Generator(T-G)Combination

Turbine: Turbine is a very light fan like structure having many number of blades.it has an ability to rotate on its axis when water passes through it.

Generator: It is a device in which when there is rotation of coil between

The strong magnetic Field than it produces an Alternating current.

ADVANTAGE’SMaintenance & operation charges are very low.

Running cost is very low.

Plant efficiency does not changes with age.

Long life in comparison with the thermal& Nuclear power plant.

No fuel charges

DISADVANTAGE’S

Initial cost is very high

Takes long time for construction

Plant’s are located in hilly area’s

Long transmission line is required

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