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Isokinetic Sampling Train M9096 Variable Page 1 of 12
Isokinetic Sampling Train M9096
Metric Calculations
Profile Version
Variables Used In Calculations
=
=
=
= Dry Molecular Weight of the Stack Gas
=
=
=
=
Bws = Percentage of Water Vapour Present on a Volume/Volume Basis
= Percentage of Water Vapour in the Gas Stream on a Volume/Volume Basis
= Molecular Weight of the Stack Gas on a Wet Basis
Vmc =
Vwc =
=
0.001245 = 22.44/!" # $$$% !Molar Gas Volume at S&P an' Molecular Weight of Water !"%%
=
=
=
=
=
= Pitot &u(e )oefficient !S*&ype + $."4, -llipsoi'al &ype + % 'eally Shoul' Be a )ali(rate' &ip an' &his Value 0se'
Ps 1(solute Stack Pressure mbar
P( Barometric Pressure mbar
Pstatic Static Pressure mbar
M '
%CO2 )ar(on Dio#i'e )ontent in Gas as a Percentage %
%O2 #ygen )ontent in Gas as a Percentage %
%N 2 3itrogen )ontent in Gas as a Percentage %
CO!ppm% )ar(on Mono#i'e )ontent in Gas ppm
B s
M s
Volume of Gas Pulle' &hrough the Meter at S&P m
Volume of Water as a Gas )on'ense' from the Stack Gases hen Vmc !m5% of Gas is Pulle' &hrough the Meter m
V 62 Volume of )on'ense' Water )ollecte' in a Moisture &est m! or g
Dn 3o77le Diameter mmQ
m 'eal 8lo 9ate &hrough the Sample &rain "l min#$
Pm
Pressure in the Gas Meter !in Simple Systems this is the Barometric Pressure Pb% mbar
T m
1(solute &emperature of the Gas Meter (in Simple Sstems this is the !mbient !ir Temperat"re #lose to the Meter (Tamb
o# $ 2%&' &
B m
Percentage of Water Vapour in the Gas Meter on a Volume/Volume Basis 1ssume' to (e :ero as Most Gas Meters are 1fter the Drying System %
C p
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Isokinetic Sampling Train M9096 Variable Page 2 o
=
=
T s 1(solute &emperature of the Stack Gases (!)erage Stack Temp* o# $ 2%&' &
∆P Differential Pressure of the Velocity 6ea' as Measure' (y the Pitot &u(e mbar
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Isokinetic Sampling Train M9096 Variable Page . of 12
Isokinetic Sampling Train M9096
Metric Calculations
Profile Version
Con,ersion of Units
Pressure
Pressure is measured in a ,ariet- of unit and as a result often leads to confusion. t+e follo/ing are useful inter#con,ersions
$ mbar =
$ mbar = $ +pa
$ mbar = 0*12006 mm3g
$ mbar = $00 Pa
$0$*'2 mbar = 160 mm3g
= $ mm3g
= 0*09401 mbar
= 160 mm3g
= 9*4$ Pa
$ Pa = $ )m ") is a )e/ton in t+is case )ormal as used else/+ere
$0$'2 Pa = 160 mm3g
$ mm3g = $*'' mbar
Temperature
In t+is e5uation is al/a-s assumed to be in absolute unitsbsolute Temp = Temperature in Celcius 7 '1 &
$0*' mm3'8
$*6 mm3'8
$ mm3'8
$0'* mm3'8
$ mm3'8
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Isokinetic Sampling Train M9096 Variable Page
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Isokinetik lorate #alc"lation
Page 6
M9096 Isokinetic lo/rate Calculation
S#'$'2'#$
:lement Value Unit #$a&a'&
Stack &emperature 21$*10 'eg ) N)**&s Selected Ca&c+&atd
Stack Pressure $0$* kPa !gauge% 3.0 mm )o;;le ,&)wrat
Stack Velocity $$*$' m/sec 4.5 mm 4.? -.6 & / m
)onsole &emperature '0*00 'eg ) 6.0 mm
1(solute Pressure $0$*' kPa !a(solute% 7.5 mm
3o77le 1rea ?.@$45
)on'ition 8actor $.54;$
)alculate' 8lo 5.A"24
M9096 Isokinetic lo/rate Calculation
S#'$'2'#'
:lement Value Unit #$a&a'&
Stack &emperature 6$0*'1 'eg ) N)**&s Selected Ca&c+&atd
Stack Pressure $0$*$ kPa !gauge% 3.0 mm )o;;le ,&)wrat
Stack Velocity $$*$9 m/sec 4.5 mm 4.? -.54 & / m
)onsole &emperature '0*00 'eg ) 6.0 mm
1(solute Pressure $0$*' kPa !a(solute% 7.5 mm
3o77le 1rea ?.@$45
)on'ition 8actor $.55"
)alculate' 8lo 5.?42"
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Isokinetik lorate #alc"lation
Page %
M9096 Isokinetic lo/rate Calculation
S#'$'2'#
:lement Value Unit #$a&a'&
Stack &emperature 6$'*$4 'eg ) N)**&s Selected Ca&c+&atd
Stack Pressure $0$* kPa !gauge% 3.0 mm )o;;le ,&)wrat
Stack Velocity $$*1 m/sec 4.5 mm 4.? -.59 & / m
)onsole &emperature '0*00 'eg ) 6.0 mm
1(solute Pressure $0$*' kPa !a(solute% 7.5 mm
3o77le 1rea ?.@$45
)on'ition 8actor $.55
)alculate' 8lo 5.?@2@
M9096 Isokinetic lo/rate Calculation
:lement Value Unit #$a&a'&
Stack &emperature $'$*00 'eg ) N)**&s Selected Ca&c+&atd
Stack Pressure $0$*$ kPa !gauge% 3.0 mm )o;;le ,&)wrat
Stack Velocity $' m/sec 4.5 mm 4.? .52 & / m
)onsole &emperature '0*00 'eg ) 6.0 mm
1(solute Pressure $0$*' kPa !a(solute% 7.5 mm
3o77le 1rea ?.@$45
)on'ition 8actor $.;45;
)alculate' 8lo ".??A
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Isokinetic Sampling Train M9096 #alc"lations Page of 12
Isokinetic Sampling Train M9096
Metric Calculations
Profile Version
Calculations
JENV No.
Sample I!. Incinerator
Sampling <ata
P' = $0$*00 mbar
Pstatc = 0*=9 mbar
= 6*60 %
= 9*$0 %
= 19*00 %
CO (m = $*0000 ppm
Bws = *00 %
D = To be <etermined "mm
Qm = *64
Pm = $0$*00
Tm = '9*00 &
Bwm = 0*00
C = 0*4=
Ts = 4==*10 &
DP = $*9$ mbar
bsolute Pressure of t+e Stack >as
mbar
Ps = $0$*=9 mbar
Molecular ?eig+t of <r- >as Stream
Md + '1*960
Molecular ?eig+t of Stack >as "?et
Ms = '1*619
Molecular ?eig+t of Stack >as "?et
D = '*9446 mm
Pm + P( + Barometric Pressure an' &m is the am(ient air temp in the =icinity of the gas meter.
% CO 2
% O 2
% N 2
'eal florate through the sample train !l min#$%
!n sample systems this is the (arometric pressure Pb mbar%
Percentage of ater =apour in the gas meter on a =olume/=olume (asis assume' to (e 7ero as most of gasmeters are after 'rying system %
&he i'eal florate m is m5 per hour hich is 5.A" l min* in this e#ample it can (e any rate ithin the capacity of the system (eing use'.
t is unlikely that a 5.$ mm no77le oul' (e a=aila(le so it is usual practice to choose the nearest si7e a=aila(le. t is safest to chose the slightlysmaller no77le than calculate' as this ill ensure that there is sufficient capacity to sample all the sample points. n this case e oul' chose the 5
Dn=|( const .Qm P
m
T mC p (100−Bwm
100−Bws )| T s M
s
Ps( ΔP )
avg )
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Isokinetic Sampling Train M9096 #alc"lations Page 9 of 12
. . .
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Isokinetic Sampling Train M9096 #alc"lations Page 10 of 12
Setting t+e lo/ @ate of t+e Sampler
&he flo setting is similar to 'etermining the sokinicity. We nee' to set Vs + Vn i.e =elocity in the stack is e<ual to the =elocity entering the no77le.
+ $0*$04
<etermination of Particulate Sampling @esults
+ 2*0000 ml or g
+ *00 mm
+ $0$*00 mbar
+ '9*00 &
+ 0*4= Pitot tube coeficient "S#T-pe
+ 4==*10 &
DP + $*9$ mbar
+ 0*20'9
+ 0*'00
+ 0*=10 >as Meter Calibration actor to account for calibration meter
+ 0 min "Time Pump /as running and gas being sampled
Ds + $*02 mg "Total amount of <ust Collected including /as+ing
?ater Vapour in Stack
+ 0*0=6
Volume of >as Sampled at Standard Condition
1t 2;5 C $.52? kPa the )orrecte' Volume of gas 'ran (y the gas meter ill (e
+ 0*06=1
+ 0*=0'6 %
Velocit- of Stack >ases
+ '2*9960
lo/ of >ases in t+e <uct
+ 14=*2
l min#$
V 32O
D
Pm
T m
C
T s
#s
m
'
"Cross#sectional rea of t+e StackV m m "Volume of >as Pulled t+roug+ t+e meter as recorded b- t+e meter
! d
m"
m" (Vol"me of Gas P"lle3 thro"gh the meter at STP an3 on a 3r gas basis'
m s#$
m min#$
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Isokinetic Sampling Train M9096 #alc"lations Page 11 of 12
lo/ at <r- Standard Conditions
+ $2$*2$4=
Particulate Concentration at STP and on a <r- >as Aasis
+ $6*'10
Particulate :mission @ate
+ 0*014
+ $=*9942
Percentage Isokinicit-
+ $0$*$1 %
m min#$
mg )m# !Particulate )oncentration at 2;5 C $.52? kPa an' on a 'ry gas (asis%
kg +r#$
Particulate Concentration at STP and on a dr- gas basis at $0 % 8'
mg )m#
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Worksheet 1nalysis
<ust ParticulateGra=imetric
1nalyst Date
Signature E-3V 3.
Sample D.nitial Weight 8inal Weight Dust Weight DGM nitial DGM 8inal 1ir Volume 9esult Dust 8inal 9esult
!gram% !gram% !mg% !liter% !liter%
S#$=06=$ $.?$@ $.?2$ .
)otes Super=isor
Date
Signature
!3m5% !mg/3m5% !mg/3m5%