A PRESENTATION ON SUMMER

TRAINING AT NTPC, NOIDA

ASHUTOSH TRIPATHI

B-TECH EN 4th YEAR

SHRI RAM MURTI SMARAK COLLEGE OF ENGG. &

TECHNOLOGY, UNNAO

UNDER THE GUIDANCE OF Mr. Deepak Garg(PE-Electrical)

And R.K.Patil (IT-Communication)

OUTLINE

Introduction

About NTPC

NTPC profile

NTPC plants

NTPC power sharing in India

Communication at NTPC

New technology in thermal power plant

Ash utilization

Conclusion

ABOUT NTPC

NTPC-National thermal power Co-operation

NTPC, India's largest power company, was set up in 1975 to

accelerate power development in India. It is emerging as an

‘Integrated Power Major’, with a significant presence in the

entire value chain of power generation business.

NTPC became a Maharatna company in May 2010. NTPC

was ranked 431st in the ‘2015, Forbes Global 2000’ ranking

of the World’s biggest companies.

NTPC PROFILE

TYPE- Public Sector Undertaking (A Govt. of India

Undertaking)

FOUNDED-1975

HEADQUARTER-Delhi

INDUSTRY- Electrical Utility

CHAIRMAN AND MD- Dr. Arup Roy Choudhury

TOTAL CAPACITY- 45,048MW

TOTAL REVENUE- 80,622 Crore

TOTAL EMPLOYEES- 24,566

NTPC PLANTS

TOTAL CAPACITY- 45,0048MW(Including 6 JV’s)

THERMAL POWER PLANT- 18

GAS FIRED PLANT- 06

HYDRO POWER PLANT- 01

JVs PLANT- 06

SOME MAJOR POWER PLANT –

NTPC Dadri (1820MW)

Rihand thermal power plant U.P (3000MW)

SHARE HOLDERS

Shareholders Shareholding[26]

Promoters: Government of India 70.00%

Foreign Institutional Investors 10.24%

Financial Institutions/Banks 08.58%

Individual shareholders 06.93%

Mutual Funds/UTI 01.33%

Others 02.92%

Total 100.0%

NTPC POWER SHARING IN INDIA

In 2014-15 it increases up to 27%

MAJOR AREA OF NTPC

To strengthen its core business, the corporation has

diversified into the fields of

Consultancy

Power trading

Training of power professionals

Rural electrification

Ash utilization

Coal mining as well.

COMMUNICATION AT NTPC

NTPC has deployed a comprehensive Communication Network Setup

and Computing infrastructure covering all its offices at Corporate

Center and Regional Headquarters, Plant/Projects and Coal Mining

including NTPC Subsidiaries and Joint Ventures. With a dedicated

Satellite transponder allocation to NTPC since 1989, a Satcom/

Telecommunication network set-up was established that includes

VSATs, Microwave/ Canopy and Terrestrial links for providing

Voice, Fax and Data Communication needs.

The Satcom Network has been implemented with Central Hub Station

at Sector 24, Noida and in Star and Mesh Topology, using PAMA and

DAMA technology that covers 32 locations operating at 512Kbps to

2Mbps.

SATELLITE COMMUNICATION

SETUP AT NTPC

Satellite communication is one particular example of wireless

communication systems. Modern satellites can receive and transmit

hundreds of signals at the same time, from simple digital data to

complex television programs.

In NTPC, an Indian communication satellite GSAT 10 geostationary

satellite is being used. It has 12 KU Band, 12 C Band and 6 lower

extended c band transponders, and included a navigation payload to

augment GAGAN

Satellite Name: GSAT 10

Status: active

Position: 83° E (83° E)

Norad: 38779

Cospar number: 2012-051B

Operator: Indian National Satellite (INSAT)

Launch date: 28-Sep-2012

Launch site: Guiana Space Center

Launch vehicle: Ariane 5 ECA

Launch mass (kg): 3400

Dry mass (kg): 1498

Manufacturer: Indian Space Research Organization (ISRO)

Model (bus): I-3K (I-3000) Bus

Orbit: GEO

Expected lifetime: 15 yrs.

TELEMETRY AND DATA HANDLING

NEW TECHNOLOGY

To meet the challenges of fulfilling India’s electricity demands at affordable

cost with minimum environmental impact, Company has drawn a long term

Technology Roadmap up to 2032.

The technology roadmap envisages development, adoption and promotion of

safe, efficient and clean technologies for entire value chain of power

generation business.

NTPC is planning to set up coal fired units with

Ultra supercritical parameters targeting efficiency comparable to best

available technology in the world.

It is planning to establish integrated gasification combined

ULTRA SUPERCRITICAL TECHNIQUE

• The thermodynamic efficiency of a Rankine steam cycle increases with

increasing temperature and pressure of the superheated steam entering the

turbine

• It is possible to increase further the mean temperature of heat addition by

taking back partially expanded and reduced temperature steam from the

turbine to the boiler, reheating it, and reintroducing it to the turbine.

• In the usual designation of steam parameters the second and third

temperature refers to single and double reheat, e.g.

309bar/594°/594°/594°C, respectively.

• As steam pressure and superheat temperature are increased above 221 bar

(3208 psi) and 374.5ºC (706ºF) the steam becomes supercritical (SC); it

does not produce a two phase mixture of water and steam as in subcritical

steam, but instead undergoes a gradual transition from water to vapor with

corresponding changes in physical properties.

• Ultra- supercritical (USC) steam generally refers to supercritical steam

at more than (1100ºF) temperature. EPRI’s terminology for 1300ºF and

1400ºF plants is Advanced Ultra Supercritical (AUSC).

INTEGRATED GASIFICATION

COMBINED

• Gasification-based technologies use partial oxidation of coal with oxygen as

the oxidant to produce a synthesis gas (syngas) consisting mainly of CO and

H2.

• The gas is cleaned to remove contaminants before it is used as fuel in a

combustion turbine.

• The exhaust gas of the gas turbine raises steam in a heat recovery steam

generator(HRSG) for a steam turbine-electric generator set..

• The combined cycle efficiency improves through the reduced effect of the

steam condenser’s heat loss. As with combustion technologies, higher

efficiency results in lower emissions per MWh.

CHALLENGES IN TECHNOLOGY

• Development of high temperature creep resistant alloy steels.

• Turbine material development

• Alternative boiler technology for gasification cycles. like FBCs etc.,

• Advanced controls & Instrumentation

• Stringent Boiler Water Quality Control

• Transfer of Technology (TOT)

HAZOPHAZOP stands for Hazard and Operability. It is a method of study for

identifying hazards and operability problems in many operational situations

ranging from chemicals and fuels processing through to electrical and

machinery systems. It is also finding applications in the planning of

operational activities such as emergency response and disaster

management.

ASH UTILIZATION

• Research has shown that the quality of fly ash produced at NTPC’s

power stations is extremely good with respect to fineness, low unburnt

carbon.

• The fly ash generated at NTPC stations is ideal for use in the

manufacture of cement, concrete, concrete products, cellular concrete

products, bricks/blocks/ tiles etc.

• Over the years, ash consumption level has reached from meagre 0.3

million ton in 1991 - 1992 to 30 million tons in 2012-13.

• The important areas for this utilisation are cement industry, bricks

industry, road embankment, mine filling, land development and ash

dyke raising. It is also a source of micro and macro-nutrients in

agriculture.

CONCLUSION

• To make sure we have plenty of energy in the future, it's up to all of us to

use energy wisely.

• We must all conserve energy and use it efficiently. It's also up to those

who will create the new energy technologies of the future.

• All energy sources have an impact on the environment. Concerns about

the greenhouse effect and global warming, air pollution, and energy

security have led to increasing interest and more development in

renewable energy sources such as solar and wind.

• NTPC is make effort for perfect greener source of energy to improve the

environment and reduce dependence on oil and other fossil fuels.

Imagination is more important than knowledge, for knowledge islimited, whereas imagination embraces the entire world – stimulatingprogress, giving birth to evolution.

THANK YOU