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Aban CII_wate r Award 08 1 2 / 9/ 2 00 8 1 A Presentation on EXCELLENCE IN WATER MANAGEMENT 2008 By ABAN POWER COMPANY LIMITED Aban CII_wate r Award 08 1 2 / 9/ 2 00 8 2 COMPANY PROFILE Independent Power Project (IPP) with Natural gas based Combined cycle power plant of Capacity 119.8 MWH Established thro International Competitive Bidding (ICB) route Power supply to the TNEB Grid on Long-term basis Part of LANCO group

Presentation on Excellence in Water Management by Aban Power Company Limited

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This is a presentation from Aban Power Company Limited, one of the finalists at the 5th CII-GBC National Award for Excellence in Water Management in 2008 The awards are in 2 categories, Within the Fence for work done on minimizing the organisations water footprint, and Beyond the Fence for work done in the community around the industry. This presentation was in the "Within the Fence" category. We thank CII and the respective companies for giving us permission to upload these presentations on the India Water Portal website for dissemination to a wider audience.

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Page 1: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/2008

1

A Presentation on

EXCELLENCE IN

WATER MANAGEMENT2008

By

ABAN POWER COMPANY LIMITED

Aban CII_wate r Award 0812/9/2008

2

COMPANY PROFILE

– Independent Power Project (IPP) with Natural gas based Combined cycle power plant of Capacity 119.8 MWH

– Established thro InternationalCompetitive Bidding (ICB) route

– Power supply to the TNEB Grid on Long-term basis

Part of LANCO group

Page 2: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/2008

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CDM APPROVEDSmoke free chi mne y

ØABAN is the First project in the world for a gas

based combined cycle power plant to obtain

CDM tag under AM 0029 methodology.

Ø Registered as CDM Project with UNFCCC on

29th May 2007 VER 2005 – 68946CER 2006 – 213891CER 2007 – 215925

Aban CII_wate r Award 0812/9/2008

4

ISO 14001 & OHSAS 18001 CERTIFIED

Page 3: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 08

AIR

C T G

ST

HOT WELL

D .M PLANT

GUA RD PO ND

R.O PLANT

AIR CO OLED C OND ENSO R

G

N ATUR AL GAS

BY PASS S TACK

HRSG

MAIN STAC K

BL

O

W

DO

WN

SO LAR EVAPO RATO N PO NDS

PERMEATE - FO R RECY CLE

REJECTS TO SO LAR PO NDS

MAKE UP TO HRSG

C OND ENSATE BAC K TO H RSG

STEA M TO TU RBINE

FLUE G AS TO ATMOSPH EREGAS TU RBINE

G ENER ATOR

FLUE GAS TO HRS G

FEED WATER TO

HRS G

WATER FR OM TWAD BO RAD

GT WAS H / C T BLO W DO WN

12/9/2008

5

PROCESS FLOW

Aban CII_wate r Award 0812/9/2008

6

WATER CONSERVATION PROJECTS – DESIGN STAGE

Air Cooled CondenserDry Low NOX

Sav ings in m3/yr

2006-07 : 2061368

2007-08 : 2142673

Sav ings in m3/yr

2006-07 : 148750

2007-08 : 148750

18,000 m3/yr

RWHP

Page 4: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 08

Profit and saving on natural resources.

Highly efficient (more than 47 %)

Efficiency is less

State of the art technology

No need of steam or water

425 MT/d of steam is needed for reducing NOx level to 45 ppm (max)

Less pollution – better environment

About 374 kg/day of NO x is only emitted

About 1402 kg/day of NO x emitted in the flue gas

New standard / bench mark

Maximum of 20 ppm of NO x in the emission.

Minimum 45 ppm of NO x level in the emission even after Water or steam injection

Saving on natural resources

No steam or No DM water

Super heated Steam is consumed for reducing the NO x level

RemarksABANTYPICAL PO W ER PLANT

DRY LOW NOx BURNERS

Aban CII_wate r Award 08

No generation of effluent

Effluent generation in the steam or DM water production

Cost of the project Rs.16 crores approx

Cost of the project –Additional to existing HRSG piping

DM water consumption is NIL litres / MWH

DM water consumption is 335 ltrs / MWH

No impact on environmentReduction in water consumptionEn vironmental investment can be paid back Zero discharge of effluents was possible

NIL treatment cost so savings is 4.52 crores per annum approx

Cost of steam injection would result in 4.52 crores per annum approx

RemarksABANTYPICAL POWER PLANT

DRY LOW NOx BURNERS

Page 5: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/2008

9

Rs. 448Lakhs

148750 m32007-2008

Rs. 448Lakhs

148750 m32006 – 2007

Rs. 307.2Lakhs

102000 m32005 – 2006(eigh t mon ths of operation)

DLN BURNERS FOR GAS TURBINE –Selected a GT with DLN burners (GE 6FA Gas Turbine) in place of conventional turbine without DLN Result: Savings includes the cost of production for steam using DM water, fuel, chemical dosing and handling of effluent generation & reduce d e mission, water conservat ion

Saving of waterPeriodMethod

DRY LOW NOx BURNERS

Aban CII_wate r Award 0812/9/2008

10

AIR COOLED CONDENSERS

Rs. 642 Lakhs

2142673 m32007-2008

Rs. 618 Lakhs

2061368 m32006 – 2007

Rs. 406 Lakhs

1353056 m32005 – 2006(eigh t mon ths of operation)

AIR COOLED CONDENSERS –

Installed Air Cooled Condensers in place of conventional cooling towers

Result: Consumption is 102 litres/MWH instead of 2500 lit/MWH

Saving of waterPeriodMethod

Page 6: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/2008

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AIR COOLED HEAT EXCHANGERS

Rs. 15.30Lakhs

51000 m32007-2008

Rs. 15.30Lakhs

51000 m32006 – 2007

Rs. 10.80Lakhs

36000 m32005 – 2006(eigh t mon ths of operation )

AIR COOLED HEAT EXCHANGERS–Installed Air Cooled Heat Exchangers (ACHE) for Closed Cooling water system (CCW) in place of conventional cooling towers using water resource.Result: Consumption is almost NIL requirement of water; hence saving of 6.07 m3 /Hr

Saving of waterPeriodMethod

Aban CII_wate r Award 0812/9/2008

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RAIN WATER HARVESTING POND

Rs. 10.8 Lakhs –Proactive practice to enrich water table

36000 m32006-07 &2007-08

Storm water reservoir –18000 KL approximate capacity with 9 percolation pits.Utilizing this water as and when required for maintaining: 14985 trees, 22000 shrubs11000 hedges15000 Sq Mt of Lawn

Saving of waterPeriodMethod

Page 7: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/2008

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Reverse Osmosis

Auxiliary Cooling Water

Sav ings in m3/yr

2006-07 : 2448

2007-08 : 3366

WATER CONSERVATION PROJECTS –CONTINUAL IMPROVEMENT

Sav ings in m3/yr

2006-07 : 3240

2007-08 : 3240

Aban CII_wate r Award 0812/9/2008

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IMPROVEMENT IN R.O RECOVERY

Rs. 1.01 Lakhs

3366 m32007-08

Rs. 0.74 Lakhs

2448 m32006-07R.O PLANT Pre treatment-Feed pH brought down from 7.0-7.5 to 6.0-6.2 by acid treatment thereby keeping LS I close to zero or slightly negativeResult : Permeate increased by 0.9 m3 /hr

Saving of waterPeriodMethod

Page 8: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 08

GUARD POND

DMF

C. F

R.O SKID

PERME ATE

REJE CTHP PUMP

N PITDM PLANT

SETT LING TANK

HCLFeCl3POLY

R.O Treatment after modi fications

ACW, BOILE R BLOW DOWN

HRSG SUMP

EFFLUENT fro m DM PLANT

12/9/2008

15

R.O– Improved performance after pretreatment modification

Aban CII_wate r Award 0812/9/2008

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C.T – COC INCREASE

Rs. 3.45 Lakhs

6480 m32006-07 &2007-08

By Increase in Cycle of Concentration – COC – in Auxiliary Cooling Tower from 5 COC to 8 COC

Result:A) Reduction in consumption

of water by 270 M3/ MonthB) Cost saving in reduction of

chemical treatment Rs. 6044 per month

Saving of waterPeriodMethod

Page 9: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 08

Raw Water Consumption

0

2000

4000

6000

8000

10000

12000

Aug-05

Oct-05

Dec-05

Feb-0

6

Apr-06

Jun-0

6

Aug-06

Oct-06

Dec-06

Feb-07

Apr-07

Jun-0

7

Aug-07

Oct-07

Dec-07

Feb-08

Apr-08

Jun-0

8

Aug-08

Oct-08

Months

in K

l

Aban CII_wate r Award 0812/9/200818

SPECIFIC WATER CONSUMPTION

0.0284893525.054 253902007 - 08

0.057858903.454 452702006 - 07

0.08564298.49 452002005 – 06(8 months)

M3/ MWh

Generation (MWh)

Annual Water Consumption

(M3)

Year

Page 10: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/200819

SPECIFIC WATER CONSUMPTION

Specific Water Consumption

0.000.010.020.030.040.050.060.070.080.09

2005-06 2006-07 2007-08Year

m3/M

WH

Aban CII_wate r Award 08

R e c yc le d /Unit G e n e ra tio n in M 3 /M W H

0 .03 8

0 .0 2 5 0 .0 2 5

0 .0 0 0

0 .0 0 5

0 .0 1 0

0 .0 1 5

0 .0 2 00 .0 2 5

0 .0 3 0

0 .0 3 5

0 .0 4 0

0 .0 4 5

2 005 -0 6 20 06-0 7 20 07-08

Y ea r

Page 11: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 08

GOOD GREEN GOVERNANCE AWARD - 2007

Aban CII_wate r Award 08

CII ENERGY EFFICIENT UNIT AWARD - 2008

Page 12: Presentation on Excellence in Water Management by Aban Power Company Limited

Aban CII_wate r Award 0812/9/2008

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IN A NUT SHELLThe project was implemented with:v Zero Discharge facility v R.O plant to recycle the effluents & rejects to solar evaporation pondsv GT with DLN burners does not require steam or water vEnergy and water saving A.C.C & A.C.H.E system in place of conventional cooling towersvISO 14001 & OHSAS 18001 Certifiedv CDM Approved Project

Aban CII_wate r Award 0812/9/2008

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Thanks