212262115 Super Critical Boiler Ppt

8/20/2019 212262115 Super Critical Boiler Ppt

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1

WELCOME TO

PRESENTATION ON

SUPERCRITICALBOILERBy

OPERATION TEAM

APML,TIRODA


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2

Introduction to SupercriticalTechnology

What is Supercritical Pressure ?

Critical point in water vapour cycle is a

thero!ynaic state where there is no clear!istinction "etween li#ui! an! $aseous state

o% water&

Water reaches to this state at a critical

pressure a"ove ''&( MPa an! )*+ oC.


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Rankine Cycle SubcriticalUnit

3

1 - ! CE" #ork - $ ! L" %eating$ - & ! '(" #ork & - ) ! %" %eating) * + ! Eco, WW+ * !

Superheating * . ! %"T Work

. * / ! Reheating/ * 10 ! I"T Work 10*11 ! L"T Work 11 * 1 !

Condening


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Rankine Cycle Supercritical

Unit

4

1 - ! CE" #ork

* ! Regeneration

- $ ! 'oiler

Superheating

$ * & ! %"T e2panion

& * ) ! Reheating

) * + ! I"T 3 L"T E2panion

+ * 1 ! Condener %eat

re4ection


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5

AbsoluteAbsolutePressurePressure

(Bar)(Bar)

SaturatioSaturatio Te!"erature Te!"erature

((ooC)C)

Latet #eatLatet #eat($ %&$')($ %&$')

55

1515

22

221221

2*42*4

342342

3**3**

3+43+4

1*41*4

1414

5,25,2

56RI6TIO7 O( L6TE7T %E6T

WIT% "RESSURE


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Nu-leate boili' is a t."e o/ boili' t0at taes "la-e 0e t0esur/a-e te!" is 0otter t0a t0e saturate ui te!" b. a -ertai

a!out but 0ere 0eat u is belo t0e -riti-al 0eat uNu-leate boili' o--urs 0e t0e sur/a-e te!"erature is 0i'0ert0a t0e saturatio te!"erature b. betee 4C to 3C

*

8eparture 9ro: 7ucleate'oiling

PRESSURE(ksc)

D E N S I T Y

WATER

ST

EAM

175 224


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+

Supercritical 'oiler Water

WallRi;e Tube 6nd S:ooth Tube


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7atural Circulation 5< OnceThrough Syte:

6


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7ro! CR#Lie

7ro! 7RSLie

BoilerRe-ir-ulatio

E-oo!i8er P0ase 1

E-oo!i8erP0ase 2

LTR#

LTS#443C

7R

#

Plate#eater

9ier#eaer

7S#

To #P Turbie To IP

Turbie

Se"arator

Botto!Ri'

263C

32*C

423C

4+3C

4*2C

534C52*C

5+1C

5*,C

324C

26C

NR:


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1

(eed #ater control

I ;ru! t."e Boiler 7ee ater o-otrol b. T0ree ele!et -otroller1;ru! le1)

3O#;(O


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11

8i=erence o9Subcritical>)00MW? and

Supercritical>++0MW?


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SU' CRITIC6L

DESCRIPTION SUPERCRITICAL

(66MW)

SUB!CRITICAL

(5MW)C"#c$%&'" R&'" 1 Oc*!'+#$,1

Ass"s'*- C"#c$%&'",!4

N&'$#&% c"#c$%&'", 7!/

0**- W&'*# 0% C'#% !W&'*# ' 0$*%R&'"

(71)

!O3DR(22!5 OC)

!L&- D*&-

T+#** E%**' C'#%

!0**- W&'*# 0%

!MS 0%

!D#$ L**%

L&'*' 3*&' A--"'" N"% 3*&' &--"'" #*

S. E'+&%y L M#*

S. C&% cs$'" L 3"+

A"# 8%9 D#y 8%$ &s %ss L 3"+


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Cotiue


(66MW)

SUB!CRITICAL

(5MW)C&% : As+ +&-%" L 3"+

P%%$'" L 3"+

A$;. P*#Cs$'"

L M#*

O*#&%% E88"c"*cy 3"+

(4!42


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Cotiue


(66MW)

SUB!CRITICAL

(5MW)

M&'*#"&% @ I8#&s'#$c'$#*

(T&*)

L

752 MT

3"+

>2 MT

S'' $ T"* L*ss M#*

B% - %ss N"% M#*

W&'*# Cs$'" L*ss M#*

14


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15

Water Wall 8eign


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W6TER W6LL6RR67@EME7T

1*

Botto! s"iral ? to"


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1+

S"IR6L 5S 5ERTIC6L W6LL

5ERTIC6L W6LL

Less as0 e"ositio oall

Less !ass o9ore u!ber o/ tubes

9ore boiler 0ei'0t /orsa!e -a"a-it.

No ui/or! 0eati' o/tubes a 0eat tras/eri all tubes o/ ==

S"IR6L W6LL

9ore as0 e"ositio

9ore ui !ass o

Less u!ber o/ tubesLess boiler 0ei'0t

Ui/or! 0eat tras/era ui/or! 0eati' o/

== tubes


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16

(urnace 6rrange:ent

-RTICAL T.P-

SPIRAL T.P-


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1,

Supercritical Sliding "reure'oiler Water Wall 8eign

Co:parion o9 5ertical Walland Spiral Wall


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2


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21

6h accu:ulation on

#all Vertical water walls Spiral water walls


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22

Super Critical BoilerMaterials


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23

A!vance! Supercritical Tu"e Materials

/)00 "ar12000c12'00c3


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24

Material Co:parion

DescriptionDescription 660 MW 660 MW 500 MW 500 MW

Structural SteelStructural Steel Alloy SteelAlloy Steel Carbon SteelCarbon Steel

Water wallWater wall T22T22 Carbon SteelCarbon Steel

SH CoilSH Coil T23, T91T23, T91 T11, T22T11, T22

RH CoilRH CoilT91,Super 304T91,Super 304

HH T22, T91,T11T22, T91,T11

LTSHLTSH T12T12 T11T11

Econoi!erEconoi!er SA10"#CSA10"#C Carbon SteelCarbon Steel

Wel$in% &oint' ()re''ure )art'*Wel$in% &oint' ()re''ure )art'* 42,000 +o'42,000 +o' 24,000 +o'24,000 +o'


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25

Steam Water CycleChemistry Controls


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2*

S&S&

4o&4o&

Paraeter Paraeter Su" CriticalSu" Critical Super CriticalSuper Critical

((

Type o% 5oilerType o% 5oiler

waterwater

treatenttreatent

LP an! 6P !osin$& Or LP an! 6P !osin$& Or All olatile TreatentAll olatile Treatent

/6y!ra7ine 8 Aonia3/6y!ra7ine 8 Aonia3

4o 6P !osin$4o 6P !osin$ Co"ine! water treatent /CWT3&Co"ine! water treatent /CWT3&

''SilicaSilica 9 '0 pp" in %ee! water an! stea,9 '0 pp" in %ee! water an! stea,

9 ':0 pp" in "oiler !ru9 ':0 pp" in "oiler !ru

Stan!ar! value 9(: pp" in the cycleStan!ar! value 9(: pp" in the cycle

-;pecte! value 9(0 pp" in the cycle-;pecte! value 9(0 pp" in the cycle

))p6p6


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2+

A$anta%e' o- SC Tec.nolo%y

I ? %igher cycle eAciency :ean "ri:arily

@ less /uel -osu!"tio

@ less "er 9= i/rastru-ture i


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26

ECO7OMB

Higher Efficiency (η%)•Less fuel input.•Low capacity fuel handling system.

•Low capacity ash handling system.•Less Emissions.

Approximate improement in !ycle

Efficiency"ressure increase # $.$$ % per &ar

'emp increase # $.$ % per deg


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2,

Increae o9 Cycle EAciency due toStea: "ara:eter

.241

175 5./ @ 5./

5./ @ 566

566 @ 566

5/ @ 6

6 @ 62

2,**

:,*<

),*+

:,*+

+,?(

',*2

+,'2

),++

(,+*

),)*

',2+

0,*:

',+'

(,*?

0

1

2

.

4

5

6

7

/

>

1

6P 1 R6 outlet teperature B!e$& CPressure B"ar

Increase o% e%%iciency BA


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3

Sub< < Supercritical CycleI:pact on E:iion

P%&' E88"c"*cy9


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31

technology

=ater -0e!istr. is !ore stri'et i su"er-riti-al o-e t0rou'0 boiler

9etallur'i-al C0alle'es

9ore -o!"le i ere-tio ue to s"iral aterall9ore /ee "u!" "oer is reuire ue to

!ore /ri-tio losses i s"iral ater all

9aitea-e o/ tube leaa'e is i-ult ue to-o!"le esi' o/ ater allAs0 sti-i' tee-. is !ore i s"iral ater

all i -o!"ariso o/


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212262115 Super Critical Boiler Ppt

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Transcript of 212262115 Super Critical Boiler Ppt