Final TL _ CVL Comparative.xls

8/12/2019 Final TL _ CVL Comparative.xls

1/6

TL CVL Comparative

Technical comparison

SCL

(2X15MW)

SCL(2X18

MW)

SCL Present

36 MW plant

CVL (2x15

MW) OLD

CVL (2x15

MW)

Revised

CVL (2x18

MW) OLD

CVL (2x18

MW)

REVISED

TL (2x15

MW) OLD

TL (2x15

MW)

REVISED

TL (2x18

MW) OLD

TL (2x18

MW)

REVISED

INDURE

(2x15)

Performance Parameters

based upon

Sept'05

performance

Gross Heat Rate Kcal /

KWH

Min Min 3700 3086 3180 3086 3180 3305 3170 3297 3165

3075

(based on

70%

petcoake+3

0%coalAuxilliary Power

Consumption in KWH Min Min 3521 3000 3000 3600 3600 3365 3165 4035 3780 3950 KW/hr.

Effluent Water KL Per DayMin Min 112 120 120 141.6 141.6 205.68 74.4 240 87.6 288

Water Requirement KL

Per DayMin Min 2568 396 396 427.2 427.2 480 253.5 552 316.8

Steam generating units

Particulars

General Description AFBC AFBC AFBC AFBC AFBC AFBC AFBC AFBC AFBC AFBC

Bi-drum watertube boiler

Single drumwater tube

boiler

Singledrum water

tube boiler

Singledrum water

tube boiler

Single drumwater tube

boiler

Single

drumwater tube

boiler

Single

drumwater tube

boiler

Singledrum water

tube boiler

Singledrum water

tube boiler

Singledrum water

tube boiler

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Under bed

feeding

Natural

circulation

Natural

circulation

Natural

circulation

Natural

circulation

Natural

circulation

natural

circulation

natural

circulation

natural

circulation

natural

circulation

natural

circulation

Design pressure 78 107 ata 107 ata 107 ata 107 ata 107 ata 107 ata 107 ata 107 ata

Max. drum working

pressure 66 107 ata 107 107 ata 107 ata 107 ata 107 ata 107 ata 107 ata

Steam flow 75 TPH 80 75 TPH 75 85 TPH 85 TPH 68 TPH 70 TPH 84 TPH 85 TPH 65 TPH

Steam pressure at S/H

outlet89 ata 89 ata 66 89 ata 89 89 ata 89 ata 89 ata 89 ata 89 ata 89 ata 89 ata

Steam temp. at S/H outlet5155 C 5155 C 490 5155 C 5205 C 5155 C 5205 C 5155 C 5155 C 5155 C 5155 C 525C

Feed water temp.at

ecomomiser inlet210 210 196 210 C 210 210 C 210 C 195 C 210 195 C 210 `

Feed water temp.at

ecomomiser outlet

260 260 235 250-260 250-260 250-260


2/6

TL CVL Comparative


SCL

(2X15MW)

SCL(2X18

MW)

SCL Present

36 MW plant

CVL (2x15

MW) OLD

CVL (2x15

MW)

Revised

CVL (2x18

MW) OLD

CVL (2x18

MW)

REVISED

TL (2x15

MW) OLD

TL (2x15

MW)

REVISED

TL (2x18

MW) OLD

TL (2x18

MW)

REVISED

INDURE

(2x15)Flue gas temp. at APH

outlet

- 100 % Indian coal140 140 140 140

-100% Petcoke160 160 -- 160

50 % indian +50%Imp coal140 140 140 140

-85%Petcoke+15%Indian

coal

min

consideringsafety of

boiler

min

consideringsafety of

boiler

124 160 160 160 160

-50% Lignite+50% Indian

coal160 160 160 160

SH steam temp. control

range

60 to 100%

MCR

60 to 100%

MCR

60 to 100%

MCR

60 to 100%

MCR

60 to 100%

MCR

60 to

100%

MCR

60 to

100%

MCR

60 to 100%

MCR

60 to

100%

MCR

60 to 100%

MCR

Air temp. at inlet of air

heater40 40 40 40 40 na na na na

Air temp. at outlet of airheater

150 150-160 150-160 150-160 150-160 na na na na

FD Fan

1x100%,

Regulating

power

cylinder

damper

1x100%,

Regulating

power

cylinder

damper

1x100%,

Regulating

power cylinder

damper

2x60%,

Regulating

power

cylinder

damper

1x100%,

Regulating

power

cylinder

damper

2x60%,

Regulating

power

cylinder

damper

1x100%,

Regulating

power

cylinder

damper

1x100 %,

with IGV

control&

constant

speed

motor

1x100 %,

with IGV

control&

constant

speed

motor

1x100 %,

with IGV

control&

constant

speed

motor

1x100 %,

with IGV

control&

constant

speed

motor

2x60%,

Reglatingp

ower

cylinder

damper

ID Fan

1x100%,Regulating

power

cylinder

damper

1x100%,Regulating

power

cylinder

damper

1x100%,

Regulating

power cylinder

damper

2x60%,Regulating

power

cylinder

damper

1x100%,Regulating

power

cylinder

damper

2x60%,Regulating

power

cylinder

damper

1x100%,Regulating

power

cylinder

damper

1x100 %,

withoutlouver

control

damper%

const.

speed

motor

1x100 %,

with VFD

1x100 %,

with VFD

1x100 %,

with VFD2x60%


3/6

TL CVL Comparative


SCL

(2X15MW)

SCL(2X18

MW)

SCL Present

36 MW plant

CVL (2x15

MW) OLD

CVL (2x15

MW)

Revised

CVL (2x18

MW) OLD

CVL (2x18

MW)

REVISED

TL (2x15

MW) OLD

TL (2x15

MW)

REVISED

TL (2x18

MW) OLD

TL (2x18

MW)

REVISED

INDURE

(2x15)

PA Fan

1x100%,

Regulating

power

cylinder

damper

1x100%,

Regulating

power

cylinder

damper

1x100%,

Regulating

power cylinder

damper

1x100 %,

Solenoid

operated

power

cylinder,

damper

control

1x100%,

Regulating

power

cylinder

damper

1x100 %,

Solenoid

operated

power

cylinder,

damper

control

1x100%,

Regulating

power

cylinder

damper

1x100 %,

with IGV

control&

constant

speed

motor

1x100 %,

with IGV

control&

constant

speed

motor

1x100 %,

with IGV

control&

constant

speed

motor

1x100 %,

with IGV

control&

constant

speed

motor

Gas velocity

Fluidisation velocity2.3 -2.5m/sec 2.3 -2.5m/sec 2.3 -2.5m/sec 2.3 -2.5m/sec

Furnace

1.8-2.0

m/sec

1.8-2.0

m/sec

1.8-2.0

m/sec

1.8-2.0

m/sec

Convection S/H6-8 m/sec 6-8 m/sec 6-8 m/sec 6-8 m/sec

Economiser8-10 m/sec 8-10 m/sec 8-10 m/sec 8-10 m/sec

Air heater6-8 m/sec 6-8 m/sec 6-10 m/sec 6-8 m/sec

Deaerator Capacity

1,50,000

kg/hr

1,50,000

kg/hr

1,70,00

kg/hr

1,70,00

kg/hrDeaerator storage tank

capacity60 m 60m 50 m 50 m 56.67m3 56.67m3 na na na na na

STEAM TURBINE

GENERATOR

Inlet steam pressure 84 ata 84 ata 62 84 ata 84 ata 84 ata 84 ata

K /cm286 Kg/cm2 86 Kg/cm2 86 Kg/cm2

Inlet steam temperature 515 C 515 C 485 5105 C 515 5105 C 515 C 5105 C 5105 C 5105 C 5105 C

Power factor 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8

Gross power generation

terminal volatge6.6 KV 11 6.6 KV 6.6 6.6 KV 6.6 KV 6.6 KV 6.6 KV 6.6 KV 6.6 KV 6.6 KV

Governor

505-

woodward,

Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

505-

woodward

, Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

505-

woodward,

Electro

hyadraulic

Bleed connectionThree Three Three Three Three Three Three Three Three Three Three


4/6

TL CVL Comparative


SCL

(2X15MW)

SCL(2X18

MW)

SCL Present

36 MW plant

CVL (2x15

MW) OLD

CVL (2x15

MW)

Revised

CVL (2x18

MW) OLD

CVL (2x18

MW)

REVISED

TL (2x15

MW) OLD

TL (2x15

MW)

REVISED

TL (2x18

MW) OLD

TL (2x18

MW)

REVISED

INDURE

(2x15)

Barring gear

auto engage

and auto

disengage

na na na na

Manual

engage

and Auto

disengage

Autol

engage

and Auto

disengage

Manual

engage

and Auto

disengage

Auto

engage

and Auto

disengage

AIR COOLED

CONDENSER

Design temp. 42 42 na 42 C 42 C 42 C 42 C 40 C 42 C 42 C 42 C 40C

Exhaust pressure 0.22 0.22 na 0.20 0.22 0.20 0.22 0.20 0.22 0.22 0.22 0.2

Fan Motor

VFD

operated

VFD

operatedna ---

VFD

optional---

VFD

optional

Two

speed

motors

Two speed

motors

Two speed

motors

Two speed

motors

DM plant

Designed capacity (net

output each stream)6 m/hr 2x10 m3/hr 5 m3/hr 5 m3/hr 5.60 m3/hr 5.60 m3/hr 5 M3/hr 5 M3/hr 5 M3/hr 5 M3/hr 6 M3/hr

OBR 100 100 m3 100 m3 120 m3 112 m 100 M3 100 M3 100 M3 100 M3

Operation mode

semi

automatic

semi

automatic

semi

automatic

Semiauto

metic

Semiauto

metic

Semiautom

etic

Semiauto

metic

Manually

operated

Treated water quality

parameters

- Reactive silica


5/6

TL CVL Comparative


SCL

(2X15MW)

SCL(2X18

MW)

SCL Present

36 MW plant

CVL (2x15

MW) OLD

CVL (2x15

MW)

Revised

CVL (2x18

MW) OLD

CVL (2x18

MW)

REVISED

TL (2x15

MW) OLD

TL (2x15

MW)

REVISED

TL (2x18

MW) OLD

TL (2x18

MW)

REVISED

INDURE

(2x15)

Combined

with main

cooling tower

One aux.

cooling

tower with

one cell

One aux.

cooling

tower with

one cell

One aux.

cooling

tower with

one cell

One aux.

cooling

tower with

one cell

One aux.

cooling

tower with

two

cells(both

working)

One aux.

cooling

tower with

two

cells(both

working)

One aux.

cooling

tower with

two

cells(both

working)

One aux.

cooling

tower with

two

cells(both

working)

Range of temp.33-42 32-42 deg 32-42 deg 32-42 deg 32-42 deg

34 - 42

deg

32 - 42

deg34 - 42 deg

32 - 42

deg34 - 43 deg

Make-up water Flow rate

Chimney height 95 m 109 m 109 m 113 m 113 m 83.5 m 107m 106.5 m 115 m

Crane & Hoist 40/05 Ton 40/5 Ton 40/5 Ton 40/5 Ton 40/5 Ton 35/5 Ton 35/5 Ton 35/5 Ton 35/5 Ton 40/05 Ton

Material Handling

Fly ash handling

Mechanical

conveying

Mechanical

conveying

Pneumatic

conveying

Pneumatic

conveying

Mechanical

conveying

Pneumatic

conveying

Mechanical

conveying

Pneumatic

conveying

Pneumatic

conveying

Pneumatic

conveying

Capacity12 TPH 2*7.5 TPH 6.78*2 TPH 6.82*2 TPH 7.7 x 2 TPH

7.70 x 2

TPh--- 12 TPH 12 TPH 12 TPH ---

Silo capacity

20 Hr.

Storage (60

m)

85 m3 2*125 m3 2*125 m3 ---

12 hours

storage for

each

boiler

12 hours

storage for

each boiler

12 hours

storage for

each boiler

16 hours

storage for

each boiler

(common

for both bed

ash+fly ash

Bed ash handling

Capacity 5 TPH 2*2.5 TPH 0.75X2 TPH 0.76*2 TPH0.85X2

TPH

0.85X2

TPH--- 5 TPH 5 TPH 5 TPH ---

Silo capacity

20 Hr.

Storage

(Each 125

m)

55 TPH 1*60 m3 1*60 m3 ---

12 hours

storage for

each

boiler

12 hours

storage for

each boiler

12 hours

storage for

each boiler

---

Coal crusher


6/6

TL CVL Comparative


SCL

(2X15MW)

SCL(2X18

MW)

SCL Present

36 MW plant

CVL (2x15

MW) OLD

CVL (2x15

MW)

Revised

CVL (2x18

MW) OLD

CVL (2x18

MW)

REVISED

TL (2x15

MW) OLD

TL (2x15

MW)

REVISED

TL (2x18

MW) OLD

TL (2x18

MW)

REVISED

INDURE

(2x15)

Coal/Petcock/Lignite

Capacity 60 TPH 70 TPH 70 TPH 73 TPH 73 TPH 50 TPH 80 TPH 80 TPH 80 TPH 70 TPH

Hrs of operation/day12 hrs 10 Hrs 11 Hrs 12 Hrs 12 Hrs --- -- --

Lime crusher

Capacity 20 TPH 43 TPH 43 TPH 48 TPH 48 TPH 50 TPH 30 TPH 30 TPH 30 TPH 5 TPH

Hrs of operation/day 12 hrs 8 Hrs 8 Hrs 8 Hrs 8 Hrs --- --- ---

LDO storage capacity 25KL 25KL 25KL Not considered

Final TL _ CVL Comparative.xls

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