Yokota Mhi

Mitsubishi Business Confidential

Advanced Turbine Technologies forAdvanced Turbine Technologies forHigh Efficiency CoalHigh Efficiency Coal--Fired Power PlantsFired Power Plants

22ndnd IndiaIndia--Japan Energy ForumJapan Energy ForumPromoting cooperation in energy efficiencyPromoting cooperation in energy efficiency

4-5 February 2008


1. THERMAL EFFICIENCY & STEAMCONDITIONS

2. MITSUBISHI 5001000MWCLASS TURBINE

3. MHI ADVANCED TECHNOLOGY FOR HIGH EFFICIENCY

4. CONCLUSION

CONTENTS


1. THERMAL EFFICIENCY & STEAM CONDITIONS


STEAM CONDITON & EFFICIENCYSTEAM CONDITON & EFFICIENCY

Steam Temperature ()

N

e

t

E

f

f

i

c

i

e

n

c

y

(

%

L

H

V

)

C

O

2

R

e

d

u

c

t

i

o

n

(

%

)

Net Efficiency

CO2 Reduction

Inlet Steam Temperature


THERMAL EFFICIENCY & HEAT RATETHERMAL EFFICIENCY & HEAT RATE

BASE

600/600

566/593566/566

538/566

538/538

MPa x degC(%)

1.7

0.8

0.9

0.8

0.9

24.216.7Steam Pressure (MPa abs.)

H

e

a

t

R

a

t

e

d

i

f

f

e

r

e

n

c

e

o

f

T

u

r

b

i

n

e


0

500

1000

1950 1960 1970 1980 1990 2000OPERATION YEAR

MW

75 MW REHEAT STEAM TURBINE

SUPERCRITICAL600 MW

NUCLEAR 340 MW

SUPERCRITICAL1000 MW

SUPERCRITICAL1050MW

1175 MW

156 MW

1000 MW1050 MW

1371 MW

1180 MW

NUCLEAR

FOSSIL

HISTORY OF MHI LARGE STEAM TURBINESDEVELOPMENT OF TURBINE CAPACITY


HISTORYOF MHI LARGE STEAM TURBINESDEVELOPMENT OF STEAM PRESSURE & TEMPERATURE

400

450

500

550

600

650

350

OPERATION YEAR1950 1960 1970 1980 1990 2000

510

566

480

538

SHIN-TOKYO #4 (538/538)

75MW

OSAKA #3 (566/538) 156.25MW

GOI #5 (566/566)

350MW

WAKAMATSU STEP1 (593/593)

50MW

WAKAMATSU STEP2 (649/593)

50MW

HEKINAN #3 (538/593)

700MW

MISUMI #1 (600/600)

1000MW

MATSUURA #2 (593/593)

1000MW

TACHIBANAWAN #2 (600/610)

1050MW

4259 60

88102

127169

190

246 250255

0

50

100

150

200

250

300

350

400kg/cm2g

2010

PRESSURE

TEMPERATURE


MHI EXPERIENCE OF SUPERCRITICAL LARGE STEAM TURBINE

600/600C24.5MPa1000MW#1MISUMI600/610C25.0MPa1050MW#2TACHIBANAWAN

595/595C24.5MPa900MW#1MAIZURU600/600C24.5MPa600MW#5HIRONO

593/593C24.1MPa1000MW#2MATSUURA 566/593C24.1MPa500MW#1NANAO-OTA538/593C24.1MPa700MW#3HEKINAN

ADVANCED STEAM CONDITION

MORE THAN 34 YEARS:LONG TERM OPERATIONEXPERIENCE

(ALL UNITS IN SERVICE)28 UNITS:LARGE CAPACITY (600MW)


HIGHEST STEAM TURBINETHERMAL PERFORMANCE

Turbine Type : CC4F-46 Steam Condition : 25.1MPa600/610YEAR IN OPERATION : DEC. 2000

J-POWER TACHIBANAWAN #2 1050MW


3000rpm 48inch Steel ISB

2 pad journal bearing

Advanced direct support LP frame

Advancedflow guide

12Cr HIP Rotor

600C class advancedHP-IP combined frame

HIGH EFFICIENCY AND ECONOMICAL DESIGN 600MW CLASS with 3000rpm 48inch ISB

TOKYO ELEC. HIRONO #5 600MW

TURBINE TYPE : TC2F-48STEAM CONDITON : 24.6MPa600/600YEAR IN OPERATION : Jul.2004


2. MITSUBISHI 500MW1000MW Class Turbine


OPTIMIZED COMBINATION OF TURBINE COMPONENTS FOR VARIOUS POWER OUTPUT

1200

1100

1000

900

800

700

600

500

400

A

p

p

l

i

c

a

t

i

o

n

R

a

n

g

e

(

M

W

)

2 Casings

1LP+HIP

4 Casings

2LP+HP+IP

3 Casings

2LP+HIP

4 Casings(Cross Compound)

1000MW

800MW

660MW

500MW


OPTIMIZED COMBINATION OF TURBINE COMPONENTS FOR VARIOUS POWER OUTPUT

HIP TurbineHIP Turbine

LP TurbineLP Turbine HP TurbineHP TurbineIP TurbineIP TurbineGeneratorGenerator

HIP TurbineHIP Turbine


HP-IP Combined Turbine

F3D ISB Reaction Blade

IP Inlet Cooling

Advanced 12Cr Rotor Forging

Features of HP-IP Combined Turbine Shorter longitudinal span Smaller differential expansion Easy maintenance


F3D ISB REACTION BLADEF3D ISB REACTION BLADEAdvanced steam path design by fully 3-D CFD analysis methodologies

Stationary BladesStationary Blades Rotating BladesRotating BladesEFFICIENCY VERIFICATION TEST IN LABORATORY

F3D blades are now applied to all new orders since 1991

Test Result of Static Pressure CFD Analysis


ROTOR COOLING ARRANGEMENTRotor surface around IP inlet is cooled by the HP exhaust steam

Cooling Steam Path

COOLING STEAM

FROM HP EXHAUST


ISB FLEET FOR LAST BLADE (For 50Hz)


ADVANTAGES OF ISB LP END BLADES

ISB Conventional Grouped Blade

Larger damping is generated by the contact at the shrouds and snubbers, which is caused by the twist-back deformation due to centrifugal force.

Reduction in Vibration Stress

ISB GB

Damping


3. MHI ADVANCED TECHNOLOGY FOR HIGH EFFICIENCY


Steady FlowSteady Flow

Measured

CFDCFD

Base

Tip

LATESTCFDANALYSISMeasured

Tip

Base

Unsteady FlowUnsteady Flow

Blade ExitBlade Exit

Mitsubishi Business ConfidentialSectional View

Stationary blade

Test EquipmentTest Equipment Test of MHI bladeTest of MHI bladeat Cambridge Univ.at Cambridge Univ.

Measurement

CFDLoss Coefficient

Rotating blade

COLLABORATION WITH CAMBRIDGE UNIV.


Model Test Turbine

Measuring at MHI Model Test Turbinewith Fast Response Aerodynamic Probe (FRAP)

Measurement Result(Total pressure at blade exit)

ETH: Eidgenossische Technische Hochschule Zurich Swiss Federal Institute of Technology Zurich

COLLABORATION WITH ETH


CFD APPLICATION TO ENTIRE TURBINE


NEW HEAT-RESISTANT ALLOY DEVELOPMENT

Type 316H Type 316H 3Co12CrMoWVNbB3Co12CrMoWVNbB

(MTV10A)(MTV10A)Super 9CrSuper 9Cr

(T91)(T91)2.25CrMo2.25CrMoValveValve

W545W5453Co12CrMoWVNbB3Co12CrMoWVNbB(MTB10A)(MTB10A)12CrMoWVNb12CrMoWVNb(10705MBU)(10705MBU)

12CrMoWV12CrMoWV(Type 422)(Type 422)BladeBlade

Type 316HType 316H3Co12CrMoWVNbB3Co12CrMoWVNbB

(MTC10A)(MTC10A)12CrMoVNb12CrMoVNb

(MJC(MJC--12)12)2.25CrMo2.25CrMoInner Inner

CasingCasingNozzle Box Nozzle Box

Modified Modified A286A286

3Co12CrMoWVNbB3Co12CrMoWVNbB(MTR10A)(MTR10A)

12CrMoVNb12CrMoVNb(TMK(TMK--1)1)CrMoVCrMoVHP/IP RotorHP/IP Rotor

650650 630630 610610 566566Steam Steam

TempTempTurbine PartsTurbine Parts

Developed by MHIDeveloped by MHI


WAKAMATSU HIGH TEMPERATURE TURBINE J-POWERNew heat-resistant material were tested in the actual turbine in 1986-91

STEP STEP 102kg/cm2g x 593/593

FERRITICMATERIAL102kg/cm2g x 649/593AUSTENITICMATERIAL

NEW 12Cr Rotor Forging TMK1

NEW 12Cr Cast Steel MJC12

9Cr2Mo Forged Steel HCM9M

Modified A286 Rotor Forging

SUSF316H Forged Steel

SUSF316H Forged Steel

Mitsubishi Business Confidential400ton/h steam can be applied to test facility.

Turbine Casing

CondenserControl Room

LP TURBINE TEST FACILITY


VERIFICATION TEST RESULT(3000RPM 48-INCH BLADE)

!

"# $ $

%&

'(

)

!

"#

$ $

%&

'(

)

0 150 300 450 600Load (MW)

500mmHg600mmHg722mmHg

Exhaust flow (t/h)

V

i

b

r

a

t

o

r

y

S

t

r

e

s

s

Field Telemetry Test (700mmHg)Field Telemetry Test (722mmHg)

Model Turbine Test

Exhaust Volumetric Flow

Test ResultDesign Value

Blade Vibratory Stress Turbine EfficiencyLow Stress in All Range High Efficiency Confirmed


ROTATING VIBRATORY TEST RESULT(3000RPM 48-INCH BLADE)

Rotating vibratory test rotorwith 48-inch steel blades

Test results of the vibratory Characteristics

Rotating speed (rpm)F

r

e

q

u

e

n

c

y

(

H

z

)

2nd Mode

1st Mode

Rated Speed


IN-HOUSE POWER PLANT(T-Point)

Gas Turbine

Steam TurbineHRSG

ACC

ST Type : SRT-36 (Single Cylinder Reheat Turbine)

ST Output : 105MWSteam Condition : 139 kg/cm2g 566 / 410 Commercial Operation : JULY 1997

Execute the Verification Program in Order to Confirm the Reliability of New Technology


WIRING(LOWER CASING & ROTOR INSTALLATION)

WIRING(UPPER CASING INSTALLATION)

NEW TECHNOLOGY VERIFICATION (IN-HOUSE POWER PLANT)


4. CONCLUSION

1. MHIs abundant experience of super-critical turbines with high temperature represents that the technologies are innovative and reliable.

2. MHI achieves a high level of technologies, especially for steam flow optimization with CFD and heat-resistance material development, which are regarded as the key technology.

3. Comprehensive verification, utilizing world-class facility and full-scale test turbine, ensures the performance and reliability of the latest technologies, even which are innovative ones.


L&T-MHI Turbine Generator Private Limited-Indigenized Domestic Company-

JV has been established on Nov.5th, 2007 byL&T (LARSEN & TOUBRO LIMITED) of 51% share, MHI (Mitsubishi Heavy Industries, Ltd.) of 49% share (MELCO takes 10% share from 49%)

1,030 Crores 4,000MW

per annum 900 Mumbai and

Surat (Hazira)

Surat(Factory)

!!"#



500/600/800/1000MWSupercritical Steam Turbine

Generator and

150/300MW Steam Turbine Generator for Gas Turbine

Combined CycleAssembly of 1000MW Turbine in MHI Nagasaki



JV can;(1) Solve Huge Electric

Demand

(2) Achieve Customer Satisfaction in Maintenance

(3) Produce Lots of Employment in India

Rotor Assembly Shop in MHI Nagasaki

High Speed Balance Machine

JV factory will have the same capability as of MHI Nagasaki



JV Should be Qualified,Because;

(1) Fully Supported by MHI, MELCO and L&T Financially and Technically

(2) Transferring Mitsubishis Most Advanced Technology for Steam Turbine Generator

(3) Of Course, Indigenized Domestic Company

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Yokota Mhi