Parameters UOM Case-1
Flue Gas Flow NM3/hr 66240
Flue Gas Inlet Temp Deg 991
Flue Gas O/L Temp Deg 185
Flue Gas Composition (% Vol)
CO2 % V/V 8
H20 % V/V 19.6
N2 % V/V 67
O2 % V/V 5.4
CO % V/V
SO2 % V/V
SO3 % V/V
Air % V/V
Total
Sp. Heat of FG at I/L Kcal/Nm3-C 0.368558
Sp. Heat of FG at O/L Kcal/Nm3-C 0.133544
Enthalpy of Flue Gas at I/L Kcal/Nm3 65643840
0.367841
1.064908
Steam Velocity
dia Inch 4
mm 101.6
Area m2 0.008111
Flow TPH 10.3
Velocity m/s 79.45106
density kg/m3 4.44
vol flow m3/s 0.644394
Natural Gas Calculations Natural Gas
Input Input
Sr. No Parameter UOM Value Remark Sr. No
1 Natural Gas STD pressure bar (a) 1.01 1
2 Natural Gas STD temperature Kelvin 273.00 2
3 NG supply pressure at site bar (g) 1.00 Assumed 3
4 Ambient temperature at site Deg 25.00 4
this will be 3-4 Deg below
5 NG temperature at site Kelvin 301.00 5
Ambient because of flow
6 NG Compression pressure bar (g) 200.00 Assumed 6
7 NG supply volume at site MMSCMD 0.95 Per day basis 7
8 Ratio of specific heats of NG K 1.32 Unit less 8
Considering NG conmpression at site Considering NG conmpression at site
Sr. No Parameter UOM Value Remark Sr. No
1 Compression Ratio P 201.01 1
Rise in NG temperature during
2 az 1088.74 Adiabatic compression 2
Compression
Assuming No consumption &
Compressed Volume of pressurised NG
3 Million m3 0.02 entire 1 day NG requirement is 3
at high temperature stored
Compressed Volume of pressurised NG
4 m3 5210.78 4
at ambient
5 Gas Holder Capacity m3 8684.63 Considering 60% occupied volume 5
Tank Sizing Tank Sizing
Sr. No Parameter UOM Value Remark Sr. No
1 Tank height m 20.00 Assumed 1
2 No. of tanks Nos. 1.00 Ref. to space available 2
Shall be max. 40 m O.D with total
3 Tank Dia. m 25.75 3
dyke radius of around 50-55 m
4 Sphere dia. for single unit m 25.50 For a spherical storage 4
5 No. of spheres Nos. 2.00 Assumed 5
6 Sphere dia. of each sphere m 12.75 6
Natural Gas Calculations 2 Natural Gas Calculati
Input
Parameter UOM Value Remark Sr. No Parameter
Natural Gas STD pressure bar (a) 1.01 1 Natural Gas STD pressure
Natural Gas STD temperature Kelvin 273.00 2 Natural Gas STD temperature
NG supply pressure at site bar (g) 16.00 Assumed 3 NG supply pressure at site
Ambient temperature at site Deg 34.00 4 Ambient temperature at site
this will be 3-4 Deg below
NG temperature at site Kelvin 310.00 5 NG temperature at site
Ambient because of flow
NG Compression pressure bar (g) 200.00 Assumed 6 NG Compression pressure
NG supply volume at site MMSCMD 4.00 Per day basis 7 NG supply volume at site
Ratio of specific heats of NG K 1.32 Unit less 8 Ratio of specific heats of NG
Considering NG conmpression at site Considering NG conmpression at site
Parameter UOM Value Remark Sr. No Parameter
Compression Ratio P 12.56 1 Compression Ratio
Rise in NG temperature during Rise in NG temperature during
Kelvin 572.55 Adiabatic compression 2
Compression Compression
Reduced LNG
Assuming No consumption &
Compressed Volume of pressurised NG Million m3 Compressed Volume of pressurised NG
0.67 entire 1 day NG requirement is 3
at high temperature at high temperature
stored
Compressed Volume of pressurised NG Compressed Volume of pressurised NG
m3 361538.32 4
at ambient at ambient
Gas Holder Capacity m3 516483.31 Considering 70% occupied volume 5 Gas Holder Capacity
Tank Sizing Tank Sizing
Parameter UOM Value Remark Sr. No Parameter
Tank height m 20.00 Assumed 1 Tank height
No. of tanks Nos. 30.00 Ref. to space available 2 No. of tanks
Shall be max. 40 m O.D with total
Tank Dia. m 36.26 3 Tank Dia.
dyke radius of around 50-55 m
Sphere dia. for single unit m 99.53 For a spherical storage 4 Sphere dia. for single unit
No. of spheres Nos. 4.00 Assumed 5 No. of spheres
Sphere dia. of each sphere m 24.88 6 Sphere dia. of each sphere
Natural Gas Calculations 3
UOM Value Remark
bar (a) 1.01
Kelvin 273.00
bar (g) 34.00 Assumed
Deg 34.00
this will be 3-4 Deg below
Kelvin 310.00 Ambient because of flow
bar (g) 50.00 Assumed
MMSCMD 4.00 Per day basis
K 1.32 Unit less
UOM Value Remark
P 1.50
Kelvin 342.04 Adiabatic compression
Kelvin 111.00 Assume -162 C storage
Assuming No consumption &
Million 3.34 entire 1 day NG requirement is
m3 stored
m3 1083967.47
m3 1548524.95 Considering 70% occupied volume
UOM Value Remark
m 20.00 Assumed
Nos. 10.00 Ref. to space available
Shall be max. 40 m O.D with total
m 108.74 dyke radius of around 50-55 m
m 143.52 For a spherical storage
Nos. 3.00 Assumed
m 47.84
Flow m3/hr 41.7
Density Kg/m3 1000
Head mWC 65.3
Shutoff Head mWC 95
Pump Eff. % 0.329
Motor Eff. % 0.94
Coupling Eff. % 1
Pumping Power @ Design Point KW 22.55
Max. Pump Power KW 34.91
Motor Rating KW 72.93 23.99341
Natural Gas Calculations 1
Input
Sr. No Parameter UOM Value Remark
1 Natural Gas STD pressure bar (a) 1.01
2 Natural Gas STD temperature Kelvin 273.00
3 Density of NG kg/m3 0.70 At STP
4 NG supply pressure at site bar (g) 34.00 Assumed
5 Specific heat of NG (Cp) KJ/kg-k 0.035 Assumed
6 Ambient temperature at site Deg 34.00 Assumed
7 NG temperature at site Kelvin 310.00 this will be 3-4 Deg below Ambient
because of flow
8 NG Compression pressure bar (g) 50.00 Assumed @ reduced temp < -80 C
9 NG supply volume at site MMSCMD 4.00 Per day basis
10 Ratio of specific heats of NG K 1.32 Unit less
11 Molecular Wt. gm/mol 16.00 Assumed
Considering NG conmpression at site
Sr. No Parameter UOM Value Remark
1 Compression Ratio P 1.50
2 Rise in NG temperature during Compression Kelvin 342.04 Adiabatic compression
3 Reduced LNG temp for storage Kelvin 173.00 Assume -100 C storage
4 Temp drop for LNG Kelvin 169.04 Will require Cryogenic cooling
5 Mass of NG per day Ton / day 2800.00 Will require Cryogenic cooling
6 Compressed Volume of pressurised NG at Million m3 3.34 Assuming No consumption & entire 1
high temperature day NG requirement is stored
Compressed Volume of pressurised LNG at
7 m3 2815.71 Assuming 1/600 vol reduction
ambient
8 Gas Holder Capacity m3 4022.44 Considering 70% occupied volume
Tank Sizing
Sr. No Parameter UOM Value Remark
1 Tank height m 20.00 Assumed
2 No. of tanks Nos. 1.00 Ref. to space available
3 Tank Dia. m 17.53 Shall be max. 40 m O.D with total dyke
radius of around 50-55 m
4 Sphere dia. for single unit m 19.73 For a spherical storage
5 No. of spheres Nos. 1.00 Assumed
6 Sphere dia. of each sphere m 19.73
