DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN GAS TURBINES

CombusTIon / CoolInG sysTem

GAS TURBINE ConTrol sysTem

Combustion System

Control System

The M501/M701 combustion system consists of 16 and 20 can-annular combustors, respectively. The combustion system is a dual-fuel (natural gas and no. 2 distillate oil) system with provisions for steam or water injection for emissions control and power augmentation. A new premix lean-burn hybrid combustor is applied to meet the existing and new NOx emission limitations around the world. The hybrid combustor features a two-stage burner assembly and a bypass valve which directs a portion of the compressor delivery air directly into the transition piece to enhance flame stability during starting and to maintain desired fuel/air ratio during loading. This unique valving system then is modulated to full-closed at full load.

Operation of the M501/M701 gas turbine and the combined cycle plant is supported by the Mitsubishi plant control system “DIASYS series”. DIASYS netmation is the latest Mitsubishi Heavy Industries Gas Turbine and total plant control system that unites State-of-the-Art Info-com technology, MHI’s rich experience as a plant manufacturer, and control technology for maximum satisfaction of customer demands such as high reliability, economy, advanced automation, and easy maintenance.

Typical Gas Turbine Control system Configuration air Cooled type CoMbuSter

3 Browser OPS Internet based CRT operation • Graphic, Trend, Alarm • Control Plate • Control Logic Monitoring

2 Site OPS (Operator Station) Human I/F for monitoring & operation • Graphic, Trend, Alarm • Control Plate • Control Logic Monitoring

5 ACS (Accessory Station) Data store & management, and Web server, Gateway •R  eports, Trip Log, Event Log, Operator Action Log, Flight Recorder

SteaM Cooled type CoMbuSter

Turbine Cooling System The cooling system for the turbine section consists of a rotor cooling circuit and four stationary cooling circuits. Rotor cooling air is provided by compressor discharge air extracted from the combustor shell. Direct compressor discharge air is used to cool the stage 1 vanes. Compressor bleed air from HP, IP and LP stages provides cooling air to turbine blade ring cavities at stages 2, 3, and 4 respectively. This supply of bleed air also cools the stage 2, 3, and 4 vane and ring segments and provides cooling air for the turbine interstage disc cavities.

Doosan Heavy Industries & Construction

turbine rotor Cooling #4 stage #3 stage #2 stage

1 MPS (Multiple Process Station) • I/O processing to the field • Control logic Execution • Short term data preservation

4 EMS (Eng. & Maint. Station) Maintenance of whole system by DIasys-IDol++ • System configuration • HML setting • Graphic creation • Object data base modification • Drawing management

Rotor Cooling Filiter

Cooler

Doosan Heavy Industries & Construction

www.doosanheavy.com

Seoul offICe

HeaD offICe anD CHangwon plant

465 Gangnam-daero, Seocho-Gu, Seoul 137-920 Korea Tel. 82-2-513-6114 Fax. 82-2-513-6200

22 DoosanVolvo-ro, Seongsan-Gu 137-920 Korea Changwon, Gyeongnam 642-792 Korea Tel. 82-55-278-6114, 7114 Fax. 82-55-264-5551, 5552

DOOSAN GAS TURBINES

Gas Turbines have played a leading role in power generation with high performance, reliability, fuel flexibility, low emissions and compactness being a few of their main characteristics.

DOOSAN is an approved manufacturer of the M501G, M501F, M701F and M701 heavy duty Gas Turbine models under a Technology License Agreement with Mitsubishi Heavy Industries, Ltd of Japan.

Today’s Gas Turbines stand at an advanced State-of-the-Art technology, providing highly efficient continuous operation, covering both base load and peak load operating conditions.

DOOSAN experience includes the Yeongwol Combined Cycle power plant in Korea, built in 2008, featuring M501F Gas Turbines. DOOSAN has since supplied the M501GAC and M501F Gas Turbines for the Pochen Combined Cycle Power Plant and Yangju & Sejong Combined Heat & Power projects.

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN GAS TURBINES

Gas TurbIne applICaTIon

DOOSAN Gas TurbInes

GAS TURBINE COMPONENTs

Simple Cycle Performance

Casings

60Hz (3600rpm)

Description

50Hz (3000rpm)

M501F

M501G

185

267

272

144

278

Heat Rate, Btu/kWh

9230

8730

8600

9810

8810

Efficiency, %

37.0

39.1

39.7

34.8

38.7

16

17

17

19

17

Turbine

4

4

4

4

4

Pressure ratio

16

20

20

14

17

Exhaust Temp,℃

613

600

614

542

592

Exhaust Gas Flow, kg/s

459

599

599

441

650

No.of Combustor

16

16

16

18

20

Output, MW @ISO Gas Turbine

No.of stage

Compressor

M501GAC

M701

Application

M701F

All engine casings are horizontally split to facilitate maintenance with the rotor in place. Individual inner casings (blade rings) are used for each turbine stationary stage and can be readily replaced or serviced with the rotor in place. Similar blade rings have been added in the compressor seventh stage through last stage.

Multi-Stage axial-Flow air CoMpreSSor FEATURES • Variable inlet guide vanes. • Horizontally split casing giving access to internal parts. • Compressor blade rings. • Individually removable stainless steel blading. • Accessible pressure-lubricated, pivoted-pad journal bearing.

Compressor Combustor Cylinder

COMBUSTION SYSTEM INCLUDES THE FOLLOWING

Rotor Assembly

• Multiple can-type combustors in a circular array. Integrated Gasification Combined Cycle

• Combustors removable with insulated cylinder cover in place. • Low emissions design. • Optional multiple fuels capability. • Ignition system including retractable igniters.

NOTE. 1. PErFOrMANCE  ArE ThE POWEr rATiNGs AT ThE GENErATOr TErMiNAls ANd ArE bAsEd ON ThE usE OF NATurAl GAs FuEl WiTh sTANdArd iNlET ANd EXhAusT duCT lOssEs.

Model M501F

Four-Stage reaCtion type turbine FEATURES

Similar to previous 501/701 series designs, the single rotor is made up of compressor and turbine components. The M501/M701 rotor is a bolted construction supported by two tilting-pad bearings. The thrust bearing is also a tilting pad design. The compressor rotor is comprised of a number of elements that are spigotted and bolted together by 12 through-bolts.

• Advanced cooling technology. • Horizontally split casing giving access to internal parts.

Simple Cycle

Combined Cycle Performance

Compressor

• Alloy turbine blades individually removable. • Cooled by air cooler with cooling air filtered.

Model

Net Plant Output

Net Plant Heat Rate Efficiency (kJ/kWh)

GTG Power

STG Power

Number &Type GasTurbine

M701DA 1 on 1

212,500 kW

51.4 %

7,000

142,100 kW

70,400 kW

1 x M701

M701DA 2 on 1

426,600 kW

51.6 %

6,974

284,200 kW

142,400 kW

2 x M701

M701DA 3 on 1

645,000 kW

51.8 %

6,947

426,300 kW

218,700 kW

3 x M701

• Individual first stage vanes removable with cylinder cover in place.

The compressor blade path is designed using a threedimensional flow-field analysis computer program. Rotor blades are double circular arc designs in the first four stages. Stationary blading, fabricated into two 180 degree diaphragms per stage for easy removal, maintains the highly efficient inner-shroud sealing system.

Combined Cycle

5 Axle High Speed Milling Machine

M701F 1 on 1

416,400 kW

59.0 %

6,120

273,800 kW

142,600 kW

1 x M701F

M701F 2 on 1

835,600 kW

59.2 %

6,082

547,600 kW

288,000 kW

2 x M701

M501F 1 on 1

285,100 kW

57.1 %

6,305

182,700 kW

102,400 kW

1 x M501F

M501F 2 on 1

572,200 kW

57.3 %

6,283

365,400 kW

206,800 kW

2 x M501F

M501F 3 on 1

858,100 kW

57.5 %

6,260

548,100 kW

310,000 kW

3 x M501F

M501G 1 on 1

398,900 kW

58.4 %

6,165

264,400 kW

134,500 kW

1 x M501G

M501G 2 on 1

800,500 kW

58.6 %

6,144

528,800 kW

271,700 kW

2 x M501G

M501GAC 1 on 1 404,000 kW

59.2 %

5,763

269,000 kW

135,000 kW 1 x M501GAC

M501GAC 2 on 1 810,700 kW

59.4 %

5,744

538,000 kW

272,700 kW 2 x M501GAC

The M501G includes a host of long-proven MHI design elements, such as two-bearing rotor support, cold-end drive with axial exhaust, tangential exhaust bearing strut support, field-removable blades with the rotor in position, rotor cooling air taken off board from the compressor and cooled prior to reentry into the turbine and horizontally split casings throughout.

Turbine The M501/M701 turbine design maintains moderate aero-dynamic loadings in spite of the increased inlet temperature through the design of a 4-stage turbine. Improvements in aero-dynamic airfoil shapes have been made possible by utilization of a fully three-dimensional flow analysis computer program. The first and second stage vanes on the turbine rotor are free-standing. The third and fourth stages have integral shrouds.

Congeneration

Model M501G

NOTE. 1. All rATiNGs ArE bAsEd ON isO CONdiTiONs. 2. ALL RATINGS AT THE GENERATOR TERMINALS ARE BASED ON THE USE OF NATURAL GAS FUEL.

Mechannical Drive

M501G during assembly. Blades can be changed and the rotor balanced at site.

Turbine Blade

Turbine Vane

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN GAS TURBINES

Gas TurbIne applICaTIon

DOOSAN Gas TurbInes

GAS TURBINE COMPONENTs

Simple Cycle Performance

Casings

60Hz (3600rpm)

Description

50Hz (3000rpm)

M501F

M501G

185

267

272

144

278

Heat Rate, Btu/kWh

9230

8730

8600

9810

8810

Efficiency, %

37.0

39.1

39.7

34.8

38.7

16

17

17

19

17

Turbine

4

4

4

4

4

Pressure ratio

16

20

20

14

17

Exhaust Temp,℃

613

600

614

542

592

Exhaust Gas Flow, kg/s

459

599

599

441

650

No.of Combustor

16

16

16

18

20

Output, MW @ISO Gas Turbine

No.of stage

Compressor

M501GAC

M701

Application

M701F

All engine casings are horizontally split to facilitate maintenance with the rotor in place. Individual inner casings (blade rings) are used for each turbine stationary stage and can be readily replaced or serviced with the rotor in place. Similar blade rings have been added in the compressor seventh stage through last stage.

Multi-Stage axial-Flow air CoMpreSSor FEATURES • Variable inlet guide vanes. • Horizontally split casing giving access to internal parts. • Compressor blade rings. • Individually removable stainless steel blading. • Accessible pressure-lubricated, pivoted-pad journal bearing.

Compressor Combustor Cylinder

COMBUSTION SYSTEM INCLUDES THE FOLLOWING

Rotor Assembly

• Multiple can-type combustors in a circular array. Integrated Gasification Combined Cycle

• Combustors removable with insulated cylinder cover in place. • Low emissions design. • Optional multiple fuels capability. • Ignition system including retractable igniters.

NOTE. 1. PErFOrMANCE  ArE ThE POWEr rATiNGs AT ThE GENErATOr TErMiNAls ANd ArE bAsEd ON ThE usE OF NATurAl GAs FuEl WiTh sTANdArd iNlET ANd EXhAusT duCT lOssEs.

Model M501F

Four-Stage reaCtion type turbine FEATURES

Similar to previous 501/701 series designs, the single rotor is made up of compressor and turbine components. The M501/M701 rotor is a bolted construction supported by two tilting-pad bearings. The thrust bearing is also a tilting pad design. The compressor rotor is comprised of a number of elements that are spigotted and bolted together by 12 through-bolts.

• Advanced cooling technology. • Horizontally split casing giving access to internal parts.

Simple Cycle

Combined Cycle Performance

Compressor

• Alloy turbine blades individually removable. • Cooled by air cooler with cooling air filtered.

Model

Net Plant Output

Net Plant Heat Rate Efficiency (kJ/kWh)

GTG Power

STG Power

Number &Type GasTurbine

M701DA 1 on 1

212,500 kW

51.4 %

7,000

142,100 kW

70,400 kW

1 x M701

M701DA 2 on 1

426,600 kW

51.6 %

6,974

284,200 kW

142,400 kW

2 x M701

M701DA 3 on 1

645,000 kW

51.8 %

6,947

426,300 kW

218,700 kW

3 x M701

• Individual first stage vanes removable with cylinder cover in place.

The compressor blade path is designed using a threedimensional flow-field analysis computer program. Rotor blades are double circular arc designs in the first four stages. Stationary blading, fabricated into two 180 degree diaphragms per stage for easy removal, maintains the highly efficient inner-shroud sealing system.

Combined Cycle

5 Axle High Speed Milling Machine

M701F 1 on 1

416,400 kW

59.0 %

6,120

273,800 kW

142,600 kW

1 x M701F

M701F 2 on 1

835,600 kW

59.2 %

6,082

547,600 kW

288,000 kW

2 x M701

M501F 1 on 1

285,100 kW

57.1 %

6,305

182,700 kW

102,400 kW

1 x M501F

M501F 2 on 1

572,200 kW

57.3 %

6,283

365,400 kW

206,800 kW

2 x M501F

M501F 3 on 1

858,100 kW

57.5 %

6,260

548,100 kW

310,000 kW

3 x M501F

M501G 1 on 1

398,900 kW

58.4 %

6,165

264,400 kW

134,500 kW

1 x M501G

M501G 2 on 1

800,500 kW

58.6 %

6,144

528,800 kW

271,700 kW

2 x M501G

M501GAC 1 on 1 404,000 kW

59.2 %

5,763

269,000 kW

135,000 kW 1 x M501GAC

M501GAC 2 on 1 810,700 kW

59.4 %

5,744

538,000 kW

272,700 kW 2 x M501GAC

The M501G includes a host of long-proven MHI design elements, such as two-bearing rotor support, cold-end drive with axial exhaust, tangential exhaust bearing strut support, field-removable blades with the rotor in position, rotor cooling air taken off board from the compressor and cooled prior to reentry into the turbine and horizontally split casings throughout.

Turbine The M501/M701 turbine design maintains moderate aero-dynamic loadings in spite of the increased inlet temperature through the design of a 4-stage turbine. Improvements in aero-dynamic airfoil shapes have been made possible by utilization of a fully three-dimensional flow analysis computer program. The first and second stage vanes on the turbine rotor are free-standing. The third and fourth stages have integral shrouds.

Congeneration

Model M501G

NOTE. 1. All rATiNGs ArE bAsEd ON isO CONdiTiONs. 2. ALL RATINGS AT THE GENERATOR TERMINALS ARE BASED ON THE USE OF NATURAL GAS FUEL.

Mechannical Drive

M501G during assembly. Blades can be changed and the rotor balanced at site.

Turbine Blade

Turbine Vane

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN GAS TURBINES

Gas TurbIne applICaTIon

DOOSAN Gas TurbInes

GAS TURBINE COMPONENTs

Simple Cycle Performance

Casings

60Hz (3600rpm)

Description

50Hz (3000rpm)

M501F

M501G

185

267

272

144

278

Heat Rate, Btu/kWh

9230

8730

8600

9810

8810

Efficiency, %

37.0

39.1

39.7

34.8

38.7

16

17

17

19

17

Turbine

4

4

4

4

4

Pressure ratio

16

20

20

14

17

Exhaust Temp,℃

613

600

614

542

592

Exhaust Gas Flow, kg/s

459

599

599

441

650

No.of Combustor

16

16

16

18

20

Output, MW @ISO Gas Turbine

No.of stage

Compressor

M501GAC

M701

Application

M701F

All engine casings are horizontally split to facilitate maintenance with the rotor in place. Individual inner casings (blade rings) are used for each turbine stationary stage and can be readily replaced or serviced with the rotor in place. Similar blade rings have been added in the compressor seventh stage through last stage.

Multi-Stage axial-Flow air CoMpreSSor FEATURES • Variable inlet guide vanes. • Horizontally split casing giving access to internal parts. • Compressor blade rings. • Individually removable stainless steel blading. • Accessible pressure-lubricated, pivoted-pad journal bearing.

Compressor Combustor Cylinder

COMBUSTION SYSTEM INCLUDES THE FOLLOWING

Rotor Assembly

• Multiple can-type combustors in a circular array. Integrated Gasification Combined Cycle

• Combustors removable with insulated cylinder cover in place. • Low emissions design. • Optional multiple fuels capability. • Ignition system including retractable igniters.

NOTE. 1. PErFOrMANCE  ArE ThE POWEr rATiNGs AT ThE GENErATOr TErMiNAls ANd ArE bAsEd ON ThE usE OF NATurAl GAs FuEl WiTh sTANdArd iNlET ANd EXhAusT duCT lOssEs.

Model M501F

Four-Stage reaCtion type turbine FEATURES

Similar to previous 501/701 series designs, the single rotor is made up of compressor and turbine components. The M501/M701 rotor is a bolted construction supported by two tilting-pad bearings. The thrust bearing is also a tilting pad design. The compressor rotor is comprised of a number of elements that are spigotted and bolted together by 12 through-bolts.

• Advanced cooling technology. • Horizontally split casing giving access to internal parts.

Simple Cycle

Combined Cycle Performance

Compressor

• Alloy turbine blades individually removable. • Cooled by air cooler with cooling air filtered.

Model

Net Plant Output

Net Plant Heat Rate Efficiency (kJ/kWh)

GTG Power

STG Power

Number &Type GasTurbine

M701DA 1 on 1

212,500 kW

51.4 %

7,000

142,100 kW

70,400 kW

1 x M701

M701DA 2 on 1

426,600 kW

51.6 %

6,974

284,200 kW

142,400 kW

2 x M701

M701DA 3 on 1

645,000 kW

51.8 %

6,947

426,300 kW

218,700 kW

3 x M701

• Individual first stage vanes removable with cylinder cover in place.

The compressor blade path is designed using a threedimensional flow-field analysis computer program. Rotor blades are double circular arc designs in the first four stages. Stationary blading, fabricated into two 180 degree diaphragms per stage for easy removal, maintains the highly efficient inner-shroud sealing system.

Combined Cycle

5 Axle High Speed Milling Machine

M701F 1 on 1

416,400 kW

59.0 %

6,120

273,800 kW

142,600 kW

1 x M701F

M701F 2 on 1

835,600 kW

59.2 %

6,082

547,600 kW

288,000 kW

2 x M701

M501F 1 on 1

285,100 kW

57.1 %

6,305

182,700 kW

102,400 kW

1 x M501F

M501F 2 on 1

572,200 kW

57.3 %

6,283

365,400 kW

206,800 kW

2 x M501F

M501F 3 on 1

858,100 kW

57.5 %

6,260

548,100 kW

310,000 kW

3 x M501F

M501G 1 on 1

398,900 kW

58.4 %

6,165

264,400 kW

134,500 kW

1 x M501G

M501G 2 on 1

800,500 kW

58.6 %

6,144

528,800 kW

271,700 kW

2 x M501G

M501GAC 1 on 1 404,000 kW

59.2 %

5,763

269,000 kW

135,000 kW 1 x M501GAC

M501GAC 2 on 1 810,700 kW

59.4 %

5,744

538,000 kW

272,700 kW 2 x M501GAC

The M501G includes a host of long-proven MHI design elements, such as two-bearing rotor support, cold-end drive with axial exhaust, tangential exhaust bearing strut support, field-removable blades with the rotor in position, rotor cooling air taken off board from the compressor and cooled prior to reentry into the turbine and horizontally split casings throughout.

Turbine The M501/M701 turbine design maintains moderate aero-dynamic loadings in spite of the increased inlet temperature through the design of a 4-stage turbine. Improvements in aero-dynamic airfoil shapes have been made possible by utilization of a fully three-dimensional flow analysis computer program. The first and second stage vanes on the turbine rotor are free-standing. The third and fourth stages have integral shrouds.

Congeneration

Model M501G

NOTE. 1. All rATiNGs ArE bAsEd ON isO CONdiTiONs. 2. ALL RATINGS AT THE GENERATOR TERMINALS ARE BASED ON THE USE OF NATURAL GAS FUEL.

Mechannical Drive

M501G during assembly. Blades can be changed and the rotor balanced at site.

Turbine Blade

Turbine Vane

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN GAS TURBINES

CombusTIon / CoolInG sysTem

GAS TURBINE ConTrol sysTem

Combustion System

Control System

The M501/M701 combustion system consists of 16 and 20 can-annular combustors, respectively. The combustion system is a dual-fuel (natural gas and no. 2 distillate oil) system with provisions for steam or water injection for emissions control and power augmentation. A new premix lean-burn hybrid combustor is applied to meet the existing and new NOx emission limitations around the world. The hybrid combustor features a two-stage burner assembly and a bypass valve which directs a portion of the compressor delivery air directly into the transition piece to enhance flame stability during starting and to maintain desired fuel/air ratio during loading. This unique valving system then is modulated to full-closed at full load.

Operation of the M501/M701 gas turbine and the combined cycle plant is supported by the Mitsubishi plant control system “DIASYS series”. DIASYS netmation is the latest Mitsubishi Heavy Industries Gas Turbine and total plant control system that unites State-of-the-Art Info-com technology, MHI’s rich experience as a plant manufacturer, and control technology for maximum satisfaction of customer demands such as high reliability, economy, advanced automation, and easy maintenance.

Typical Gas Turbine Control system Configuration air Cooled type CoMbuSter

3 Browser OPS Internet based CRT operation • Graphic, Trend, Alarm • Control Plate • Control Logic Monitoring

2 Site OPS (Operator Station) Human I/F for monitoring & operation • Graphic, Trend, Alarm • Control Plate • Control Logic Monitoring

5 ACS (Accessory Station) Data store & management, and Web server, Gateway •R  eports, Trip Log, Event Log, Operator Action Log, Flight Recorder

SteaM Cooled type CoMbuSter

Turbine Cooling System The cooling system for the turbine section consists of a rotor cooling circuit and four stationary cooling circuits. Rotor cooling air is provided by compressor discharge air extracted from the combustor shell. Direct compressor discharge air is used to cool the stage 1 vanes. Compressor bleed air from HP, IP and LP stages provides cooling air to turbine blade ring cavities at stages 2, 3, and 4 respectively. This supply of bleed air also cools the stage 2, 3, and 4 vane and ring segments and provides cooling air for the turbine interstage disc cavities.

Doosan Heavy Industries & Construction

turbine rotor Cooling #4 stage #3 stage #2 stage

1 MPS (Multiple Process Station) • I/O processing to the field • Control logic Execution • Short term data preservation

4 EMS (Eng. & Maint. Station) Maintenance of whole system by DIasys-IDol++ • System configuration • HML setting • Graphic creation • Object data base modification • Drawing management

Rotor Cooling Filiter

Cooler

Doosan Heavy Industries & Construction

www.doosanheavy.com

Seoul offICe

HeaD offICe anD CHangwon plant

465 Gangnam-daero, Seocho-Gu, Seoul 137-920 Korea Tel. 82-2-513-6114 Fax. 82-2-513-6200

22 DoosanVolvo-ro, Seongsan-Gu 137-920 Korea Changwon, Gyeongnam 642-792 Korea Tel. 82-55-278-6114, 7114 Fax. 82-55-264-5551, 5552

DOOSAN GAS TURBINES

Gas Turbines have played a leading role in power generation with high performance, reliability, fuel flexibility, low emissions and compactness being a few of their main characteristics.

DOOSAN is an approved manufacturer of the M501G, M501F, M701F and M701 heavy duty Gas Turbine models under a Technology License Agreement with Mitsubishi Heavy Industries, Ltd of Japan.

Today’s Gas Turbines stand at an advanced State-of-the-Art technology, providing highly efficient continuous operation, covering both base load and peak load operating conditions.

DOOSAN experience includes the Yeongwol Combined Cycle power plant in Korea, built in 2008, featuring M501F Gas Turbines. DOOSAN has since supplied the M501GAC and M501F Gas Turbines for the Pochen Combined Cycle Power Plant and Yangju & Sejong Combined Heat & Power projects.

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN GAS TURBINES

CombusTIon / CoolInG sysTem

GAS TURBINE ConTrol sysTem

Combustion System

Control System

The M501/M701 combustion system consists of 16 and 20 can-annular combustors, respectively. The combustion system is a dual-fuel (natural gas and no. 2 distillate oil) system with provisions for steam or water injection for emissions control and power augmentation. A new premix lean-burn hybrid combustor is applied to meet the existing and new NOx emission limitations around the world. The hybrid combustor features a two-stage burner assembly and a bypass valve which directs a portion of the compressor delivery air directly into the transition piece to enhance flame stability during starting and to maintain desired fuel/air ratio during loading. This unique valving system then is modulated to full-closed at full load.

Operation of the M501/M701 gas turbine and the combined cycle plant is supported by the Mitsubishi plant control system “DIASYS series”. DIASYS netmation is the latest Mitsubishi Heavy Industries Gas Turbine and total plant control system that unites State-of-the-Art Info-com technology, MHI’s rich experience as a plant manufacturer, and control technology for maximum satisfaction of customer demands such as high reliability, economy, advanced automation, and easy maintenance.

Typical Gas Turbine Control system Configuration air Cooled type CoMbuSter

3 Browser OPS Internet based CRT operation • Graphic, Trend, Alarm • Control Plate • Control Logic Monitoring

2 Site OPS (Operator Station) Human I/F for monitoring & operation • Graphic, Trend, Alarm • Control Plate • Control Logic Monitoring

5 ACS (Accessory Station) Data store & management, and Web server, Gateway •R  eports, Trip Log, Event Log, Operator Action Log, Flight Recorder

SteaM Cooled type CoMbuSter

Turbine Cooling System The cooling system for the turbine section consists of a rotor cooling circuit and four stationary cooling circuits. Rotor cooling air is provided by compressor discharge air extracted from the combustor shell. Direct compressor discharge air is used to cool the stage 1 vanes. Compressor bleed air from HP, IP and LP stages provides cooling air to turbine blade ring cavities at stages 2, 3, and 4 respectively. This supply of bleed air also cools the stage 2, 3, and 4 vane and ring segments and provides cooling air for the turbine interstage disc cavities.

Doosan Heavy Industries & Construction

turbine rotor Cooling #4 stage #3 stage #2 stage

1 MPS (Multiple Process Station) • I/O processing to the field • Control logic Execution • Short term data preservation

4 EMS (Eng. & Maint. Station) Maintenance of whole system by DIasys-IDol++ • System configuration • HML setting • Graphic creation • Object data base modification • Drawing management

Rotor Cooling Filiter

Cooler

Doosan Heavy Industries & Construction

www.doosanheavy.com

Seoul offICe

HeaD offICe anD CHangwon plant

465 Gangnam-daero, Seocho-Gu, Seoul 137-920 Korea Tel. 82-2-513-6114 Fax. 82-2-513-6200

22 DoosanVolvo-ro, Seongsan-Gu 137-920 Korea Changwon, Gyeongnam 642-792 Korea Tel. 82-55-278-6114, 7114 Fax. 82-55-264-5551, 5552

DOOSAN GAS TURBINES

Gas Turbines have played a leading role in power generation with high performance, reliability, fuel flexibility, low emissions and compactness being a few of their main characteristics.

DOOSAN is an approved manufacturer of the M501G, M501F, M701F and M701 heavy duty Gas Turbine models under a Technology License Agreement with Mitsubishi Heavy Industries, Ltd of Japan.

Today’s Gas Turbines stand at an advanced State-of-the-Art technology, providing highly efficient continuous operation, covering both base load and peak load operating conditions.

DOOSAN experience includes the Yeongwol Combined Cycle power plant in Korea, built in 2008, featuring M501F Gas Turbines. DOOSAN has since supplied the M501GAC and M501F Gas Turbines for the Pochen Combined Cycle Power Plant and Yangju & Sejong Combined Heat & Power projects.