nuclear power and electricity

1. Narora atomic power plant
Presented by
ANIK,ASIF IQBAL
19-40026-1
Dept:EEE

2. INDEX
• Introduction
• Layout
• Working principal
• Principal of nuclear reactor
• Reactor type
• Unit1
• Unit-2
• summary

3. INTRODUCTION
 Narora Atomic Power Station (NAPS) is a nuclear power plant located in the bank of
river Ganga, Narora, Bulandshahar District in Uttar Pradesh, India.
 Narora atomic power plant is involved in generating electricity by utilizing nuclear
energy.
 Laid down on 4th January 1974.
 The heat generated due to fission of natural Uranium is removed by circulating D2O
coolent.
 It has 2 natural draft cooling tower and 2 induced draft cooling tower.
 The plant house has 2 reactor and each has a capability of producing 220 MW
 It has been placed under IAEA monitoring

4. LAYOUT
• Administration building
• Overhead water tank
• Natural draft cooling tower
• 220kv switch yard
• Stack
• Service building
• Reactor building
• Purification building
• Turbine building
• Pump house
• Station training centre
• Waste management plant

5. WORKING PRINCIPAL

6. PRINCIPAL OF NUCLEAR REACTOR
 A Nuclear Power reactor is only a source of heat.
 The heat being produced when the uranium atom splits (fission)
 Natural uranium consist of two types of uranium namely U-235 and
U-238 in ratio of 1:139.
 Naturally occurring uranium contains only 0.71% U-235,the
remainder Is the non feasible U-238
 When a U-235 atom is struck by a slow (or thermal) neutron, it splits
into two or more fragments.

7. REACTOR TYPE
IPHWR-220(Indian pressurized heat water reactor)
 Primary coolant material: Heavy Water
 Secondary coolant material: Light Water
 Moderator material: Heavy Water
 Fuel: Sintered Natural UO, pellets
 Enrichment of reload fuel: 0.7% U-235
 Residual heat removal system, Active: Shutdown cooling system
 Safety injection system: Emergency core cooling system
 Thermal output 754.5 MW, Active power 220 Mwe,Efficiency
27.8%
 Core coolant inlet 249*C
 Core coolant outlet 293.4*C
 Reactor operating pressure 87 kg/cm2 (g)
 Active core height 508.5 cm
 Equivalent core diameter 451 cm
 Average fuel power density is 9.24 KW/KgU
 Average core power density is10.13 MW/m3

8. UNIT 1:NARORA-1
 First criticality was at 12 March 1989
 Reactor is Pressurized Heavy Water Reactor (PHWR)
 Model is horizontal pressure tube type
 Owner and operator is Nuclear Power Corporation Of India Ltd
• Net capacity is 220 MW

9. UNIT 2:NARORA-2
 First criticality was at 24 October 1991
 Reactor is Pressurized Heavy Water Reactor (PHWR)
 Model is horizontal pressure tube type
 Owner and operator is Nuclear Power Corporation Of India Ltd
 Net capacity is 220 MW

10. SUMMARY
• Narora Atomic Power Station is the fourth Nuclear Power Station having twin units
each of 220 MWe capacity. It is situated on the bank of river Ganga at Narora in
District, Bulandshahr (U.P.) & is 140 km. ... It is the first standardized and totally
indigenous PHWR type Nuclear Power Station. Nuclear power plants heat water to
produce steam. The steam is used to spin large turbines that generate electricity.
Nuclear power plants use heat produced during nuclear fission to heat water. In
nuclear fission, atoms are split apart to form smaller atoms, releasing energy.