coal boiler exhaust emissions

8/17/2019 Coal Boiler Exhaust Emissions

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Coal boiler exhaust gas flows 7/10/98

Watson coal Normal O2

Feedrate 4.87525 K/sec 17.55 tonnes/!r

"eat val#e 20.04 $%/K 28.& $W O'* +

"eat low 97.7 $w

$ost#re 2&.9 1.114 K/sec O2 ,s! 4.1 0.1999 3 -toc! ar 0.48 /sec "2O

49.0 2.889 3 *cess 2.00 N2

" .7 0.1804 3 ,ct#al ar 7.49 /sec O2

N 0.8 0.090 3 0.99 m/sec -O2

- 0.2 0.009 3 otal as! 0.200 /sec 42.15

O 15.4 0.7508 3 6ottom as! 0.1799 tonnes/!r

l 0.0 0.0001 3 Fl as! 0.1499 /sec

0.0 0.0001 3

1.00094 'rea n%ecton at mole rato 0.7

and steam n%ecton rate o 0.5

CO2 emmission rate 89.84773 Kg/Gj 'rea #sae 0.028 /sec

,dded "2O 0.277 /sec

0.7587&44& steam on

u!erheate"

#nthal!$ of team #nthal!$ %ee"water &atent hea

'(4 C )ater 4(2 C* 42.+ bar ,ate '+.+C -a!o

j/g0 j/g0 t/hr0 1)0

&99 54.& 108.85 7.90

eat n!ut Combust. ir Comb. eat n!ut %ee" 2O 5oiler %lue

from Coal ir C! ir 6em! %rom ir eat in!ut team Gas1)0 Kg/se0 j/g K0 C0 1)0 1)0 Out 1)0 g/se0

97.7 7.491 1.005 20 0.1&9 21.14 101.4 42.4589

erent ollutant

ower n 119.00 $W Control

ower Out 119.01 $W 50 :Ox

O2

5oiler #ff. 82.19 99 1

Notes

1. :n;#t val#es are s!aded n ellow. "eat val#e (""ass? !eat low can >e ad%#sted #ntll t!e correct mass low s o>taned.

-tac as tem;erat#re s set >#t onl wt!n a narrow rane o nown ;erormance. !e eedwater low ra

2. 6ottom as! s ass#med to >e 25 o total as!. :ncomn coal s ass#med to !ave 0 ent!al;. ,s! s re

. ,ct#al NO emssons are calc#lated rom so#rce test data.


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4. -tac s ass#med to >e 1.9 m dameter.


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level (wet) .2@5 -tac

oncentraton

,- m/m

mass low $w moles vol ; (A/B5O2 tonnes/da

8.7781 44 0.1995 1.7 0.9075.2105 18 0.1784 12.2 1.908

28.87 28 1.0298 70.& 1.012

1.&2&5 2 0.0508 .5 0.91

0.0100508 &4 0.0002 0.0 0.&4& 14.7& 0.87

42.4589 /sec 1.458& 1.054 5.75

or stac tem; 14 o

s;ecc vol 1.175 m/K Note @ -O2 corrected or as! retenton o -

denst 0.851 K/m

-tacFlowrate 49.884 m/sec 1.45 m/sec at 5 O2 Oc

C 5 nleaae 52.7818

-tac veloct 18.47 m/sec

es/!r

ensible heat

r Coal 5ottom ash %l$ ash

1)0 1)0 1)0

0 0.09 0.0149

%lue Gas %lue Gas %lue Gas ,a"iation ,a"iation

C! 6em! eat Out!ut &oss &ossj/g K0 C0 1)0 %rat. 1)0

1.0542 14 1.&08 0.0 .927

tual llowe" llowe"

#missions #missions #missions

g/s g/s mg/m3 ; +


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1) exhaust gas flows

'-, averae

+ross eedrate .82 K/sec Factor

1.7& tonnes/!r 0.0511&89

+ross !eat val#e 9.9 ""<

n as! 5.0Net "eat val#e 9.422 $%/

Net "eat low & $w

$ost#re 27.4 1.04&9 1.04&9 /sec

Noncom> 2.2 0.88&4 0.9781 3 -toc! ar 12.57 K/sec

2&. 1.0049 0.95&0 3 *cess 55.00

" .5 0.17 0.1272 3 ,ct#al ar 19.48 K/sec

N 0.7 0.02&7 0.0254 3 1&.24 m/sec

- 0.2 0.007& 0.007 3 otal as! 0.978 /sec

O 18.1 0.&91& 0.&579 3 6ottom as! .80 tonnes/!r

l 0.5 0.0191 0.0182 3 Fl as! 0.09 /sec

(n;#t) (>#rned) 3 otal as! 2& o $-W

'rea n%ecton at mole rato 0.5

and steam n%ecton rate o 0.5

CO2 emission rate 92.4'749 Kg/Gj 'rea #sae 0.002 /sec

,dded "2O 0.11& /sec

0.40 steam onne

u!erheate"

#nthal!$ of team #nthal!$ %ee"water

'72 C )ater 4(2 C* 42.+ bar ,ate

j/g0 j/g0 t/hr0

728 54.& 0.08

eat n!ut Combust. ir Comb. eat n!ut %ee" 2O 5oiler %urnae

from 1) ir C! ir 6em! %rom ir nt. energ$ team #xit 6em!

1)0 Kg/se0 j/g K0 C0 1)0 1)0 Out 1)0 C0

& 19.484& 1.005 0 0.284 &.08 28.0 1054.54

erent

ower n 42.7 $W Control

ower Out 42.7 $W 40

89

5oiler #ff. &0.9& 91

95

Notes

1. :n;#t val#es are s!aded n ellow. +ross !eat val#e (""ass? t!s n#m>er can >e ad%#sted #ntll t!e correct mass low s o>tane

-tac as tem;erat#re and >oler et tem;erat#re are set >#t onl wt!n a narrow rane o nown ;eror


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tem;erat#re s t!e ;rmar taret or t!e eed water rate ad%#stment. !e #rnace et tem;erat#re s t!e ;

>ottom as! can >e set and t!s wll calc#late a ross eed rate o $-W s#c! t!at t!e taret !eat low s o>

o t!e #n>#rned #el to t!e >#rned #el. !en 1C t!e actor tmes t!e >#rned #el s t!e total #el. !e net !

to eva;orate t!e water n t!e #n>#rned #el and to !eat t!e #n>#rned #el to as! tem;erat#res. !e rato

tem;erat#re can >e set wt!n reason. -tac as s rased to 1& most#re > n%ecton o water nto com>

2. 6ottom as! s ass#med to >e 9& o total as!? .e. noncom>#st>les ;l#s #n>#rned $-W. :ncomn $. ,ct#al NO emssons are calc#lated rom t!e ,@42 actor or mass >#rn reractor wall ncnerators

4. -tac s ass#med to >e 1. m dameter.


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Normal O2 level (wet) 4@10O'* +,- ; (A/)

mass low $w moles vol at &00 at 100

O2 .50&5 44 0.0797 10.0 1.155 0.947

"2O 2.007 18 0.1278 1&.1 1.70 1.88

N2 14.989& 28 0.55 &7.4 1.094 1.027

O2 1.&040 2 0.0501 &. 1.109 1.094

-O2 0.0145 &4 0.0002 0.0 0.747 0.&25

"l 0.0187 &.5 0.0005 0.1 0.852 0.804

22.2 22.415 0.7971 0.797 1.1&7&07 1.10724

or stac tem; 170 o or >oler et tem; 190 o

s;ecc vol 1.290 m/K !#mdcaton red to 1&

denst 0.775 K/m !#m water re#red 0 /sec

-tacFlowrate 28.90& m/sec 1.&8991 Ndm/sec

C nleaae 29.774& 0.005 /sec or " control

-tac veloct 22.4 m/sec

s/!r

&atent heat ensible eat 5oiler 5oiler

=C >a!or 5ottom s %l$ sh ,a"iation ,a"iation

1)0 1)0 1)0 &oss &oss

5.&&2 0.522797 0.004715 2.00 0.4&&%urnae %urnae

%lue %lue Gas %lue Gas %lue Gas &atent ,a"iation ,a"iation

Gas C! 6em! Out!ut eat &oss &oss

g/se0 j/g K0 C0 1)0 1)0 %rat. 1)0

22.415 1.1072 192.5251 10.440 5.&&2 8.00 2.90

ollutant tual llowe" llowe"

#missions #missions #missions

g/s g/s mg/m3 ; +oler n ener terms.

. !e ;rmar ad%#stments are t!e steam low rate and t!e ecess ar.

ance s;eccaton or t!e dr sor>ent n%ecton. !e l#e as


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rmar taret o t!e ecess ar ad%#stment. !e e;ected car>on n t!e

taned rom t!s $-W. , actor s calc#lated (*4) w!c! s t!e rato

eatn val#e can >e calc#lated > s#>tractn t!e ener re#red

actor can >e #sed to mae t!s calc#laton. !e com>#ston ar

#ston c!am>er.

W s ass#med to !ave 0 ent!al;. ,s! s reerenced to 0 .

coal boiler exhaust emissions

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