ntpc
TRANSCRIPT
NTPC EFFORTS TO
ENHANCE
ASH UTILIZATION
V. K. MATHUR V. K. MATHUR V. K. MATHUR V. K. MATHUR
AGM / NTPCAGM / NTPCAGM / NTPCAGM / NTPC
Power Generation Scenario in IndiaPower Generation Scenario in India
Present Installed Capacity (31-09-08)
• Total Installed Capacity : 1,45,555 MW
• Coal Based Capacity : 76,989 MW (53%)
• Hydro Power Capacity : 36,348 MW
• Gas & Diesel based Capacity : 15,904 MW
• Nuclear & Renewable Energy Sources : 16,315 MW
• Capacity addition target by 2012 : 60,000 MW
(coal based capacity)
• Ash Generation during 2007-08 : 130 Million Tonne
• Estimated Ash Generation By 2012 ~ 210 Million Tonne
• Ash Utilization during 2007-08 : 70 Million Tonne (54%)
• Ash Generation in NTPC (2007-08) : 43 Million Tonne
• Ash Utilization in NTPC (2007-08) : 23.7 Million Tonne (55%)
Ash Generation at NTPC Stations-as on March 2008
22395430.05Total
300068.21Talcher-Kaniha
46010.60Talcher -Thermal
134018.46Kahalgaon
160033.39Farakka
100022.74Simhadri
260046.65Ramagundam
326050.19Vindhyachal
210049.35Korba
44010.55Tanda
105023.86Unchahar
200030.37Rihand
200036.08Singrauli
70513.31Badarpur
84016.22Dadri
MW CapacityTotal Ash Production Lakh Tonne / YearStation
Year wise Ash Utilization
0.33 0.47 1.05 1.792 2.2 2.25 2.44 2.74 3.04
3.76
5.677.52
12.7
16.7
20.8
23.7
0
5
10
15
20
25
1991
-92
1992
-93
1993
-94
1994
-95
1995
-96
1996
-97
1997
-98
1998
-99
1999
-00
2000
-01
2001
-02
2002
-03
2003
-04
2004
-05
2005
-06
2006
-07
2007
-08
Year
Qty
in M
illion tonne
ASH UTILIZATION IN NTPC
NTPC EFFORTS• Dry Ash Evacuation System (DAES)
• Building Products
• Agriculture
• Roads
• Mine Filling
• Research Studies
• Awareness Measures
Dry Ash Evacuation system
(DAES)
Dry Ash Evacuation system (DAES)
• 100 % DAES in all new
Plants and expansion units
• 20% DAES in all existing
Plants. Further
augmentation depending
upon requirement
• Long Term Agreements
signed with Cement
industries for 29.5 Lakh M/T
fly ash at four stations.
• New agreements with
cement industries being
signed through NVVN
Dry Ash Evacuation system (DAES)
• 52500 M/T Fly Ash exported through NVVN.
• JV’s being entered through NVVN.
• 950 M/T Cenospheresexported through NVVN
Increase in Issue of Fly Ash to Industries
0.04 0.05 0.110.40 0.56 0.74 0.91 0.89
1.20 1.211.69
2.163
3.10
4.60
5.67
7.45
8.70
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
1991-
92
1992-
93
1993-
94
1994-
95
1995-
96
1996-
97
1997-
98
1998-
99
1999-
00
2000-
01
2001-
02
2002-
03
2003-
04
2004-
05
2005-
06
2006-
07
2007-
08
Year
Qty
. in
Mil
lio
n T
on
ne
Ash Utilization in NTPC
Fly Ash bricks
• All NTPC Stations
Have Fly ash bricks
making plants for
demonstration
purposes to
encourage private
enterprenuers to set
up their plants
• Bricks being made for
inhouse consumption.
Fly Ash bricks
• In 2007-08, NTPC produced 7 crores fly ash bricks.
• This is being increased to 12 crore bricks by setting up 3 more brick plants at Sipat, Vindhyachal and Dadri.
• At Ramagundam, High Volume Clay-ash bricks are being made.
• About 5.2 lakh cum pond ash was utilized for these bricks during 2007-08.
Vibro Press
Agriculture
• Show case projects on use of fly ash in Agriculture being taken up at Simhadri, Unchahar, Singrauli, Dadri & Talcher-Thermal Stations involving nearby farmers and Agriculture university.
• Results at Simhadri are very encouraging. Initially only 5 farmers came forward for the study, the number has now gone to 25 farmers within one year.
View of Paddy crop on ash
mix plot at Simhadri
Road Embankment
• Allahabad bypass road embankment construction utilized 67 Lac Cum Pond Ash from Unchahar.
• Noida-Greater NoidaExpressway utilized 22 Lac Cum Pond Ash from Badarpur
• Low lying areas in NTPC being filled with Pond ash
Allahabad Bypass /
Unchahar Ash pond
Mine Filling
• At Talcher-Thermal, ash is being filled in South Balanda Mine, utilizing about 10 lakhs cum ash / annum (100%)
• Efforts are on to take up Random filling of ash along with over burden of an operating mine as a pilot study.
• Ministry of Coal has agreed for such study and asked coal companies to identify mines for the same.
• A documentary film on use of fly ash in mine filling is under production.
South Balanda Mine
STUDIES / DEMONSTRATION PROJECTS
Studies / Demonstration Projects
• NTPC & RDSO have signed an MoU for the study of
suitability of coal ash in Railway Embankment –
07.09.07
A study for design of the embankment has been
awarded to CRRI.
To validate the design of Rail
Embankment,another study has been awarded to
IIT Bombay for conducting Centrifuge model tests.
Kahalgaon MGR -10 km has been selected for
pilot study.
MGR extension / Railway siding at Talcher-Kaniha
are also planned to be taken up as part of study
Studies / Demonstration Projects
• Fly ash based concrete road are being constructed at Dadri and Farakka –study by CRRI.
• Roller compacted concrete pavement is being constructed at Ramagundam-study by CRRI.
• High volume fly ash- clay bricks / tiles using flux bonded technology taken up in association with National Institute of Inter Disciplinary Science & Technology, Trivandrum at Ramagundam
• Cold Setting Structural Bricks / Blocks with high volume fly ash in association with RRL Bhubaneshwar
Studies / Demonstration Projects
• Use of fly ash in Bituminous Road Surfacing taken up through CRRI.
Demonstration stretch shall be constructed at NTPC Dadri.
• Use of fly ash in Railway Concrete Sleepers
is being taken up in association with IIT, Kanpur.
• Use of Bottom ash in concrete block making is being taken up in association with National Council for Cement & Building material, Ballabhgarh at NTPC Unchahar.
AWARENESS MEASURES
AWARENESS MEASURES
• Documentary Films
• Workshops
• Advertisements in News papers
• Exhibitions
• Distribution of Booklets, Pamphelets etc
AWARENESS MEASURES
DOCUMENTARY FILMS
1. Coal Ash –as Fill Material –2001
2. Use of Fly Ash in Concrete & RMC Plants-(2004-05)
3. Clay Fly Ash Bricks --(2005-06)
4. Fly Ash Bricks --(2006-07)
5. High Volume Ash Clay Bricks –(2007-08)
6. Use of fly ash in mine filling –(Under preparation)
AWARENESS MEASURES
Workshops organized by NTPC:
1. Delhi PWD
2. Delhi Development Authority
3. Ghaziabad development Authority
4. Noida Authority
5. Greater Noida Authority
6. Municipal Corporation of Delhi (MCD)
7. New Delhi Municipal Council (NDMC)
8. Hyderabad Urban Development Authority
9. NHAI
10. Research Designs & Standards Organization (RDSO), Lucknow
11. M/S CES Delhi / Kolkata
12. M/S ICT Consultant
13. RITES
14. World Bank
15. Asian Development Bank
AWARENESS MEASURES
Advertisements
• Advertisements are being published on all India basis on frequent intervals
• Advertisements are theme based
--Various applications of fly ash
--Specific usage of fly ash-Cement & Concrete, Building products, Roads and Embankments, Agriculture, Mine filling etc
2006-072 2006-07
2006-07
2006-07
2007-08
2007-08