options in power generation serving core & infrastructure sectors of the economy power thermal...

Hyd ro

O il

Pulverise d C oa l Flud ised BedTe c hno logy

C oa l G a s

Ste a m Powe r Pla ntsBo ile r + Turb ine

O p e n C yc le(G a s Turbine)

C om b ine d C yc leG T + ST

G a s Turb ine Ba sedPow e r Pla nts

The rm a l Nuc le a r Non C onve ntiona l

Pow er G e ne ra tion O p tions

OPTIONS in POWER GENERATION

SERVING CORE & INFRASTRUCTURE SECTORS OF THE ECONOMY

PowerThermalSub-Crit: Up to 600MWSup. Crit: 660 & 800MWBoilers, STG, Auxiliaries, ESPEPC

HydroUp to 250 MWTurbines, GeneratorsControls

GasAdv. Class GTsOpen Cycle,Combined Cycle

NuclearUp to 1000 MWe

Power TransmissionSwitchgear, Transformers, Insulators, Substations, SCADA, HVDC Systems

Industry

Captive Power PlantsBoilers, STGs, Auxiliaries, C&I Systems, DG

TransportationLocomotives (electric - AC/DC), Diesel-electrics, EMU's, Traction Electrics

Other ProductsOn-Shore Oil Rigs, Compressors, NCES, Desalination Plants, Valves, Motors

International Operations

Operating Business Areas

BHEL75%

OTHERS25%

GENERATION 612 BUs Thermal Utility sets

2011-12

OTHERS41%

BHEL59%

INSTALLED CAPACITY - Utility 180413 MW (As on Mar. 2012)

Over 1,15,000 MW added by BHEL in domestic and international segmentsOver 1,15,000 MW added by BHEL in domestic and international segments

BHEL’S Contribution to Indian Power Sector

Steam Generators ExportedCustomer Unit Size No

EEA-Egypt Al-Arish TPS 12 T/h 1

ECT-Libya Tripoli West TPS 45 T/h 2

PT IBR-Indonesia Bharat Rayon 75 / 80 T/h 3 / 3

PT – IBR Jawa bharat Indonesia 120 T/h 1

PT. ADARO Indoesia 126 T/h 2

KONIAMBO-Nickel SAS

Koniambo Nickel SAS – New Caledonia

405 T/h 2

NEB-Malaysia Sultan Ismail TPS 30 MW 1

EEA-Egypt Al-Arish TPS 30 MW 2

NEB-Malaysia Tuanku Jaafar TPS 60 MW 2

NEB-Malaysia Tuanku Jaafar TPS 120 MW 3

NEB-Malaysia Prai TPS 120 MW 3

NEB-Malaysia Pasirgudang TPS 120 MW 2

ECT-Libya Tripoli West TPS 120 MW 2

NEC-Sudan Kosti TPS 125 MW 4

MAYLAN Intra Ltd Senegal / Africa 125 MW 1

PEEGT Tishreen,Syria 200 MW 2

Total 36Total 36

Trend in unit sizes & Cycle parameters 

Unit Size SHO Pressure (kg/cm2(a)

SHO/RHO Temperature

(Deg.C)

Year of Introduction

60 / 70 MW 96 540 1965

110 / 120 MW 139 540/540 1966

200 / 210 MW 137 / 156 540/540 1972

250 MW 156 540/540 1991

500 MW 179179

540/540 540/568

19791985

600 MW 179 540/540540/568 2008

660 MW 256 568/596 2008

700 MW 256 568/596 2010

800 MW 256 568/596 2008

Heat balance diagram (270 MW)

Rankine cycle The Carnot Cycle is theoretically most efficient, but it is having practical difficulties. For steam power plant, practical thermal cycle was suggested by Rankine, called Ideal cycle or

Rankine cycle.

1

23

3’

4T

S

T1

T2

p1

p2

3-3’ – BFP raises pressure from p2 to p1 3’-4 – Heating In feed heaters & economizer4 -1 – Heating In boiler1-2 – Work done in Turbine from p1 to p2

2-3 – Heat reduction in condenser

DO

WN

CO

MER

S

WA

TER

WA

LL F

RO

NT

WA

TER

WA

LL R

EA

R

PLA

TEN

SU

PER

HEA

TER

REH

EA

TER

FR

ON

T

REH

EA

TER

REA

R

FI N

AL S

UP

ER

HEA

TER

WATER WALL BOTTOM RING HEADERS

CW

SH

FR

ON

T

SC

W S

H R

EA

R

DRUM

CRH IN

REAR ROOF

WATER INLET

SH STEAM OUTLET

EXTENDED WW

EXT SCW SH

FRONT ROOF

HRH OUT

LTSH

Economiser

BASIC DATA FOR DESIGNBASIC DATA FOR DESIGN

BOILER PARAMTERS

FUEL DATA

SITE DATA

FUEL ANALYSIS COAL

Fuels HandledCoal / Oil / Natural Gas in any combination

Lignite

Blast Furnace Gas / Coke Oven Gas / Corex Gas

Carbon Monoxide / Tail gas

Asphalt

Black Liquor

Bagasse

Rice Husk

Washery Rejects

Wheat / Rice straw

EPRS LOADING

PLAN AREA LOADING

VOLUMETRIC LOADING

BURNER ZONE HEAT RELEASE RATE

FURNACE HEAT LOADINGSFURNACE HEAT LOADINGS

BOILER AUXILIARIESBOILER AUXILIARIES

MILL

FANS

ELECTROSTATIC PRECIPITATOR

AIRHEATERS

BOWL MILLS UNDER ERECTIONBOWL MILLS UNDER ERECTION

Bowl Mill (General Arrangement)

Tube Mill Arrangement (Typical)

Axial Reaction Fan (Single Stage)

Axial Reaction Fan (Double Stage)

Axial Fan Impulse Type (AN)

Radial Fan (Double Suction)

AIRPREHEATERSAIRPREHEATERS

ELECTROSTATIC PRECIPITATORELECTROSTATIC PRECIPITATOR

TG FLOOR - THERMAL POWER PLANT

TYPICAL STEAM & WATER CIRCUIT

TYPICAL SCHEME OF AIR & GAS DUCTS / CIRCUITS

COLD PA SYSTEM

Once Through Supercritical Steam Generators

NTPC/ BARH II STPP – 2 x 660 MW

CoalFuel

568 / 596 oC Temperature

255/54.65 kg/cm2 (g)Pressure

2120/1708.2 t/h.Steam Flow

31.03.2008Zero Date

U6/1700 & U6/1701Contract No.

Not in SG PackageDust Collector

2 Nos. SAF 42.5/26.6-1, Axial Reaction-TLTID Fan

2 Nos. PAF 19/10.6 – 2, Axial Reaction-TLTPA Fan

2 Nos. FAF 25/11.2 – 1, Axial Reaction-TLT

FD Fan

PAH - 2 Nos. 28.5 VI 58 (70)MR,2NOS 31.5 VI 70 (82)MR ALSTOM Supply

Airheater

9 Nos. Bowl Mill, HP 1103Mill

Major Auxiliaries

Parameters at SHO / RHO

BARH II – 2 x 660 MWProject

National Thermal Power CorporationCustomer

Steam generation process

T S DIAGRAM

Boilin

g W

ater

Dry Saturated Steam

Entropy KJ / Kg K

Tem

pera

ture

( 0

C )

-2730

24’0c

A

B C

D

E

Basic Rankine Cycle

F

OUTPUT INCREASE

The Concept

The mass flow rate thru’ all heat transfer circuits from

Eco. inlet to SH outlet is kept same except at low loads

wherein recirculation is resorted to protect the water wall

system

Circulation Systems

Drum Type Once-through

Thank You