This ppt is on summer internship at NTPC Badarpur also known as BTPS. NTPC is India's largest power provider and a Maharatna Company, while Badarpur Plant is a thermal coal fired power plant. It is one of the Asia's oldest one. This ppt highlight's working and utilization of various facilities at plant and the explanation of modified rankine cycle.

1. PRESENTATION ON SUMMER INTERNSHIP
Prepared by : Mr. Udbhav
Institution : ------
Class : ------
Enrollment No.: ------

2. SUMMER INTERNSHIP
Company : NTPC Badarpur
Location : Badarpur, Delhi
Period : 26th May to 7th July
(6 weeks)

3. 1. ABOUT THE COMPANY
 NTPC is India’s largest power producer, it was
established in 1975.
 It is an Indian Central Public Sector Undertaking
under the Ministry of Power, engaged in the business
of generation of electricity and allied activities. It is a
company incorporated under the Companies Act
1956.
 The total installed capacity of the company is 45,048
MW with 18 coal based and 7 gas based stations.
 It has been ranked as “6th Best Company to work for
in India” among the PSU and Large Enterprises for the
year 2014, by the Great Places to Work Institute,
India.

4. 2. THE BADARPUR THERMAL POWER STATION
 It is one of the oldest power station in whole of
asia, its construction began in 1968 and first
unit was commissioned in 1973.
 It is a coal fired power station.
 It comprises of three unit’s each of 95MW
capacity and two unit’s each of 210MW
capacity.
 Its overall capacity 705MW, with an efficiency
of 36%.

5. 3. POWER CYCLES
 The steam plant operates upon Rankine cycle
which is a vapour power cycle. Modification is
done to increase efficiency.
 It comprises of two isentropic compression and
expansion processes and two isobaric heat
transfer processes.
 Reheating is done by passing the steam to
boiler after 1st H.P. turbine and then passing
through a second L.P. turbine.
 In Regeneration some of the steam is bled off
and used to partially reheat the feed water.

6. Fig. 1 Plant Layout(acc. To cycle)

7. 4. SOME TERMS INVOLVED
 Unit heat rate: The heat rate of a power plant
is the amount of chemical energy that must be
supplied to produce one unit of electrical
energy.
 Plant Load Factor(PLF): is a measure of
average capacity utilization. If can be affected
by non-availability of fuel, maintenance shut-
down, unplanned break down,etc. But since
power cannot be stored the generation has to
be adjusted. The formula = Gross Generation
/ (Installed Capacity * Number of Hours)

8. TERMS (contd.)
 Specific Fuel Consumption: This is the
amount of fuel(coal) used to produce a unit
power, for NTPC badarpur it is 0.6kg/kWh.
 Planned Maintenance: It is a planned,
documented and scheduled procedure to be
completed before a breakdown occurs.
 Forced Outage: It is the shutdown condition of
a power station when the generating unit is
unavailable to produce power due to
unexpected breakdown. It can be caused by
equipment failures, disruption in fuel supply,
operator errors etc.

9. 5. COMPONENTS
 Boilers burn the fuel transferred from the tank
and use the resulting heat to convert water
into steam. Inside the boilers are tens of
thousands of water-carrying tubes. When
combustion commences, the temperature
inside the boilers rises to between 1,100 and
1,500°C, the water inside the tubes is turned
into high-temperature and high-pressure
steam, and the steam is transferred to the
steam turbines.

10. COMPONENTS (contd.)
 Turbines The steam rotates the turbine blades
at a high speed of 3,000 rpm. This turns the
power generator, which is directly connected to
the turbines, and electricity is produced as a
result. This electric power is then delivered
along power transmission lines and through
substations to the homes of customers. The
steam is cooled by seawater in a condenser,
restored to water, and then returned to the
boiler for reuse. This cycle of water to steam to
water is repeated over and over again.

11. COMPONENTS (contd.)
 Generator: An Electrical generator is a device
that converts kinetic energy to electrical
energy, generally using electromagnetic
induction. the generators must rotate at
constant synchronous speeds according to the
frequency of the electric power system, the
most common speeds are 3000 r/min for 50 Hz
systems.
 Plant Auxiliary: It comprises of all other
features like water treatment plant, feedwater,
cooling towers, ash handling, repair shops, etc.

12. 6. MAINTENANCE OBJECTIVES
 To prevent plant breakdown.
 To increase the reliability of operating
functions.
 To minimize production loss due to failures.
 To keep the equipment safe and prevent safety
hazards.
 To improve the product quality and maximize
production utilization.

13. 7. TYPES OF MAINTENACE PROCESS

14. 8. CONCLUSION
The six week summer internship was
a great opportunity to analyze the
working of a thermal power plant and
recognize the commitment of the
work-force involved there.

15. THANK
YOU