SUBMITTED TO- ER. AKSHAY AGNIHOTRI ( asst prof of EE)

SUBMITTED BY- mohit Sharma 13074441( B. tech EE 7th Sem )

CONTENTS

INTRODUCTIONo The Pong Dam, also known as

the Beas Dam, is an earth-fill embankment dam on the Beas River just upstream of Talwara in the state of Himachal Pradesh India. The purpose of the dam is water storage for irrigation and hydroelectric power generation. As the second phase of the Beas Project, construction on the dam began in 1961 and was completed in 1974.

Background

The idea for a dam on the Beas at the Pong site was first proposed in 1926 and subsequent surveys of the Indus River and its tributaries were ordered by the Punjab Government in 1927. Interest in the dam declined after the report deemed the project difficult because of flood waters. In 1955, geological and hydrological studies were carried out on the Pong site and an embankment design was recommended. In 1959, extensive studies were carried out and recommended an embankment dam with a gravity section. A final design was issued and construction began in 1961 on the dam which was called Beas Project Unit II - Beas Dam. The Pandoh Dam 140 km (87 mi) upstream being the Beas Project Unit I. It was completed in 1974 and the power station was later commissioned between 1978 and 198

DESIGN The Pong Dam is a 133 m (436 ft) tall and

1,951 m (6,401 ft) long earth-fill embankment dam with a gravel shell. It is 13.72 m (45 ft) wide at its crest and 610 m (2,001 ft) wide at its base. The total volume of the dam is 35,500,000 m3 (46,432,247 cu yd) and it its crest sits at an elevation of 435.86 m (1,430 ft) above sea level

WORKING

SPILLWAY IS LOCATED ON ITS SOUTHERN BANK AND IS A CHUTE-TYPE CONTROLLED BY SIX RADIAL GATES ITS MAXIMUM DISCHARGE CAPACITY IS 12,375 M3/S (437,019 CU FT/S)

SPILWAY

RESERVOIR

Creates Maharana Pratap Sagar

Total capacity8,570,000,000 m3 (6,947,812 acre·ft)

Active capacity7,290,000,000 m3 (5,910,099 acre·ft)

Catchment area12,560 km2 (4,849 sq mi)

Surface area 260 km2 (100 sq mi)

Max. length 41.8 km (26 mi)

Normal elevation 426.72 m (1,400 ft)

Turbines 6 x 60 MW Francis-type

Installed capacity 360 MW

ADVANTAGES OF DAM o 1. Once a dam is constructed, electricity can be produced at a constant

rate.2. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high.3. Dams are designed to last many decades and so can contribute to the generation of electricity for many years / decades.4. The lake that forms behind the dam can be used for water sports and leisure / pleasure activities. Often large dams become tourist attractions in their own right.5. The lake's water can be used for irrigation purposes.6. The build up of water in the lake means that energy can be stored until needed, when the water is released to produce electricity.7. When in use, electricity produced by dam systems do not produce green house gases. They do not pollute the atmosphere

DISADVANATGES

Dams are extremely expensive to build and must be built to a very high standard.2. The high cost of dam construction means that they must operate for many decades to become profitable.3. The flooding of large areas of land means that the natural environment is destroyed.4. People living in villages and towns that are in the valley to be flooded, must move out. This means that they lose their farms and businesses. In some countries, people are forcibly removed so that hydro-power schemes can go ahead.5. The building of large dams can cause serious geological damage. For example, the building of the Hoover Dam in the USA triggered a number of earth quakes and has depressed the earth’s surface at its location.