ventilation calculation
DESCRIPTION
calcTRANSCRIPT
Length
(m)
Width
(m)
Height
(m)
Elevator M/C
Room3.500 3.500 4.350 20 1070
Emergency
Stair5.395 3.580 17.850 10 3450
Turbine Building
Ground Floor
Battery
Room6.670 6.870 4.850 10 2230
Toilet 3.235 2.585 4.850 10 410
Pantry 1.770 2.585 4.850 20 450
Store 2.885 2.585 4.850 10 370
Turbine Building
Deaerator Floor
AHU Room'
Supply Fan- - - - 6500
Turbine Building
Operating Floor
TG Building
SCHEDULE for VENTILATION
Area
Room Size
No of Air
Change
Air volume to
be replaced
CW Pump
House31.500 9.550 7.850 10 23620
Switch Gear
Room8.000 9.550 4.350 15 4990
DM
Building22.000 24.000 8.850 10 46730
MCC Room
(Gr. Floor)14.000 8.000 4.850 15 8150
MCC Room
(1St Floor)20.000 8.000 3.850 15 9240
Toilet
(Gr. Floor)3.500 2.500 4.850 10 430
Toilet
(1st Floor)3.500 2.500 3.850 10 340
Chemical
Building
(Gr. Floor)
20.000 20.000 4.850 10 19400
Chemical
Building (1st
Floor)
20.000 20.000 3.850 10 15400
MCC Room 6.000 4.000 4.850 15 1750
DM Plant
PT Plant
CW Pump House
No. of
Fans
Fan capacity
considering
10% margin
(M3/Hr)
Fan capacity
seleted
(M3/Hr)
Head
Required
(mmWC )
Fresh Air supply thru' wall
mounted fan filter unit &
exhaust thru' back draft
damper
1 1177 1200 30
Air exhaust through wall
mounted exhaust fans.2 1898 1900 15
Air exhaust through wall
mounted exhaust fans.1 2453 2500 15
Air exhaust through wall
mounted exhaust fans.1 451 500 15
Air exhaust through wall
mounted exhaust fans.1 495 500 15
Air exhaust through wall
mounted exhaust fans.1 407 500 15
Air exhaust through wall
mounted exhaust fans.2 3575 3600 15
Type of Ventilation
Fan Details
SCHEDULE for VENTILATION
Air exhaust through wall
mounted exhaust fans.5 5196 5200 15
Supply Air System with
back draft damper2 2745 2800 30
Air exhaust through wall
mounted exhaust fans.7 7343 7400 15
Supply Air System with
back draft damper3 2988 3000 30
Supply Air System with
back draft damper5 2033 2100 30
Air exhaust through wall
mounted exhaust fans.1 473 500 15
Air exhaust through wall
mounted exhaust fans.1 374 400 15
Air exhaust through wall
mounted exhaust fans.4 5335 5400 15
Air exhaust through wall
mounted exhaust fans.4 4235 4300 15
Supply Air System with
back draft damper1 1925 2000 30
Type
Required
Break
Power
(in KW)
Rated Capacity
with 25%
margin
(in KW)
Wall mounted axial
type with rain cowl
& bird screen
0.245 0.306
Wall mounted axial
type with rain cowl
& bird screen
0.194 0.242
Wall mounted axial
type with rain cowl
& bird screen
0.255 0.319
Wall mounted axial
type with rain cowl
& bird screen
0.051 0.064
Wall mounted axial
type with rain cowl
& bird screen
0.051 0.064
Wall mounted axial
type with rain cowl
& bird screen
0.051 0.064
Wall mounted axial
type with rain cowl
& bird screen
0.368 0.459
Fan Details
SCHEDULE for VENTILATION
Wall mounted axial
type with rain cowl
& bird screen
0.531 0.664
Wall mounted axial
type with rain cowl
& bird screen
0.572 0.715
Wall mounted axial
type with rain cowl
& bird screen
0.755 0.944
Wall mounted axial
type with rain cowl
& bird screen
0.613 0.766
Wall mounted axial
type with rain cowl
& bird screen
0.429 0.536
Wall mounted axial
type with rain cowl
& bird screen
0.051 0.064
Wall mounted axial
type with rain cowl
& bird screen
0.041 0.051
Wall mounted axial
type with rain cowl
& bird screen
0.551 0.689
Wall mounted axial
type with rain cowl
& bird screen
0.439 0.549
Wall mounted axial
type with rain cowl
& bird screen
0.408 0.510
Length
(m)
Width
(m)
Height
(m)
A. TG Building Electrical Room
Reactor Room 16.905 4.785 4.850 6 2360
Dry Transformer
Room9.160 11.320 4.850 6 3020
Cable Cellar 56.710 6.770 3.850 6 8870
Cable Cellar
Extension26.295 11.550 3.850 6 7020
BD Bay (Column
Number 10-11)19.792 7.745 2.350 6 2170
CD Bay (Column
Number 1-1')8.240 8.095 2.350 6 950
B. Other Rooms of TG Building
Turbine Building
Ground Floor
EL(+)00.00 M
AB Bay 65.700 16.100 4.850 6 30790
Turbine Building
Mezzanine Floor
EL(+)05.00 M
AB Bay 65.700 16.100 4.850 6 30790
Turbine Building
Ground Floor
EL(+)00.00 M
AIR WASHER SIZING CALCULATION
Area
Room Size
Turbine Building
Mazzenine Floor
EL(+)05.00 M
No of Air
Change
Air volume to
be replaced
AB Bay 65.700 16.100 7.500 6 47600
BC Bay:
Electrical
Maintenance
Room
8.240 7.865 5.350 6 2090
BC Bay (Column
1-1')8.240 7.805 4.850 6 1880
Air Washer
Room8.240 7.865 5.350 6 2090
Air Washer
Room8.240 7.865 5.350 6 2090
= 141720 CMH
= 155892
= 2
= 80000 CMH
= 46.92 KW
= 55 KW
= 9
= 16000 CMH
= 3.75 KW
= 5.5 KW
KW Required for Each Washer Unit
Considered KW
No. of Washer unit considered
Capacity of each Washer unit
KW Required for Each Washer Unit
Considered KW
No. of Roof Extractor Considered
Capacity of Each Roof Extractor
Turbine Building
Operating Floor
EL(+)09.00 M
Turbine Building
Deaerator Floor
EL(+)14.50 M
Total Air Quantity to be Handled
Considering 10% Margin
Length
in Inch
1.67 1 2 11.5 4.43
2.13 1 2 11.5 4.43
6.26 4 2 11.5 4.43
4.95 2 2 11.5 4.43
1.53 1 2 11.5 4.43
0.67 1 1 11.5 4.43
21.73 4 5 11.5 4.43
21.73 4 5 34.5 13.29
DUCT SIZING
Duct Area
%
(Refer
Table 13)
Duct Area
in Sq. Inch
Dimension (Ref. Table 6)Number of
Opening
provided
CFM
Capacity
% for each
Opening
CFM
Capacity
%
33.59 4 8 17.5 6.74
1.47 1 1 3.5 1.35
1.33 1 1 3.5 1.35
1.47 1 1 3.5 1.35
1.47 1 1 3.5 1.35
Total CFM141720 - - 200 38.52 -
70860 - - 100 19.26 28
Total CFM 80000
11 21.75 10.87 116
5.436318752
Width
in Inch
Length
in Inch
Width
in Inch
11 0.64 1.00
11 0.82 1.00
11 2.41
11 1.91
11 0.59
11 0.26
- - - - - -
- - - - - -
Each Duct
Area
(sq. ft.)
DUCT SIZING DUCT SIZING
2.67
Dimension (Ref. Table 6)Duct Size
1.46
Duct Area
(sq. ft.)
Number
of Branch
Velocity
Considered
(m/sec)
- - - - - -
- - - - - -
- - - - - -
11 0.57 1 0.57 10 10
11 0.57 1 0.57 10 10
-
136 11 19.26 1 19.26 10 10
24 2900 600
24 1300 600
IF 3 NUMBER OF BRANCH TAKE OUT FROM COMMON HEADER
MM MM SQ. INCH Inch Inch
2900 600 3.624 34 24
IF 3 NUMBER OF DISTRIBUTION FROM EACH BRANCH TAKE OUT
SQ. INCH Inch Inch
1.208 18 16
NUMBER OF BRANCH TAKE OUT FROM COMMON HEADER
MM MM
850 600
NUMBER OF DISTRIBUTION FROM EACH BRANCH TAKE OUT
MM MM
450 400
SL.
NO.AREA
LENGTH
(M)
WIDTH
(M)
HIGHT
(M)
1 CCR + CER 50 7 4 350
350 3767.369
SL.
NO.AREA LENGTH WIDTH HIGHT
A TG Building Electrical Room
Gr. Floor (EL 0.0M)
1 Battery Room EL 0.0M 8 7 5 280
2 Electrical Room at EL 0.0M 50 7 5 1750
3Extention of electrical room at
EL (0.0M) (CD)27 11.5 5
1552.5
4 GT1 room at EL (0.0M) 18.5 8 9 1332
5 GT2 room at EL (0.0M) 7 8 9 504
Mezzanine Floor (EL 5.0M)
1 Cable Spreader Room EL 5.0M 58 7 41624
2 Cable Spreader Room EL 5.0M 34 11.5 41564
Operating Floor (EL 9.0M)
1 SWGR room EL 9.0M 26 11.5 4 1196
B Other Room of TG Building
1AB Bay Ground Floor EL 0.0M
65 15 5 4875
2
AB Bay Mezzanine Floor EL
5.0M 65 15 5 4875
3
AB Bay Operating Floor EL
9.0M (upto EL 20.0M) 65 15 11 10725
4BC Bay Ground Floor EL 0.0M
8 7 5 280
5
BC Bay Mezzanine Floor EL
5.0M 8 7 4 224
6
BC Bay Operating Floor EL
9.0M 16 7 4 448
6
BC Bay Deaerator Floor EL
14.5M (AW 1 for AB bay) 7 8 5.5 308
6
BC Bay Deaerator Floor EL
14.5M (AW 2 for AB bay) 7 8 5.5 308
6
CD Bay Deaerator Floor EL
14.5M (AW for Electrical room)5.75 8 5.5 253
32098.5
No of Air Washer Unit
Roof extractor
2 X 12 MW CPP
AIR CONDITIONING AREA
VENTILATION AREA
Power
37.67369 40 TR 60
Total Ventilation Considered Power
192591 200000 Kw
3 70000 41.06 170
8 26250 6.16 10
Length
(m)
Width
(m)
Height
(m)
A. TG Building Electrical Room
Electrical Room 57.100 6.670 4.850 6 11090
Reactor Room 16.905 4.785 4.850 6 2360
Dry Transformer
Room9.160 11.320 4.850 6 3020
Cable Cellar 56.710 6.770 3.850 6 8870
Cable Cellar
Extension26.295 11.550 3.850 6 7020
BD Bay (Column
Number 10-11)19.792 7.745 2.350 6 2170
CD Bay (Column
Number 1-1')8.240 8.095 2.350 6 950
Turbine Building
Operating Floor
EL(+)09.00 M
Switchgear
Room26.000 11.370 3.850 6 6830
Turbine Building
Ground Floor
EL(+)00.00 M
Turbine Building
Mazzenine Floor
EL(+)05.00 M
AIR WASHER SIZING CALCULATION
Area
Room Size
No of Air
Change
Air volume to
be replaced
B. Other Rooms of TG Building
Turbine Building
Ground Floor
EL(+)00.00 M
AB Bay 65.700 16.100 4.850 6 30790
Turbine Building
Mezzanine Floor
EL(+)05.00 M
AB Bay 65.700 16.100 4.850 6 30790
AB Bay 65.700 16.100 7.500 6 47600
BC Bay:
Electrical
Maintenance
Room
8.240 7.865 5.350 6 2090
BC Bay (Column
1-1')8.240 7.805 4.850 6 1880
BC Bay 65.575 6.770 5.350 0 0
Air Washer
Room8.240 7.865 5.350 6 2090
Air Washer
Room8.240 7.865 5.350 6 2090
= 159640 CMH
= 175604
Turbine Building
Operating Floor
EL(+)09.00 M
Turbine Building
Deaerator Floor
EL(+)14.00 M
Total Air Quantity to be Handled
Considering 10% Margin
= 2
= 90000 CMH
= 52.79 KW
= 55 KW
= 9
= 18000 CMH
= 4.22 KW
= 5.5 KW
No. of Washer unit considered
Capacity of each Washer unit
KW Required for Each Washer Unit
Considered KW
No. of Roof Extractor Considered
Capacity of Each Roof Extractor
KW Required for Each Washer Unit
Considered KW
Length
in Inch
Total CFM 42310
CFM
Capacity
%
Number of
Opening
provided
CFM
Capacity
% for each
Opening
Duct Area
%
(Refer
Table 13)
DUCT SIZING
Dimension (Ref. Table 6)
Duct Area
in Sq. Inch
27.21 4 7 11.5 3.54
27.21 4 7 34.5 10.61
42.07 4 11 17.5 5.38
1.85 1 2 3.5 1.08
1.66 1 2 3.5 1.08
Total CFM 113150 11 30.76 15.38 116
- - - - - -
- - - - - -
- - - - - -
Total CFM 117330
Total CFM 90000
FOR NON-ELECTRICAL ROOMS
Total CFM 113150
11 30.76 15.38 116 24 2900 600
7.688993352 24 1300 600
Width
in Inch
Length
in Inch
Width
in Inch
11 3.01 1.51
11 0.64
11 0.82
11 2.41
11 1.91
11 0.59
11 0.26
11 1.86 1.86
11 11.50 11.50
DUCT SIZING
Dimension (Ref. Table 6)
2.67
Velocity
Considered
(m/sec)
Duct Area
(sq. ft.)
Duct Size
DUCT SIZING
Each Duct
Area
(sq. ft.)
1.46
Number
of Branch
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
24
- 11 0.00 1 0.00 0 0
- 11 0.57 1 0.57 10 10
- 11 0.57 1 0.57 10 10
11 31.89 31.89
Inch Inch
11 24.46 24.46 144 30
12.23171788 24
IF 3 NUMBER OF BRANCH TAKE OUT FROM COMMON HEADER
MM MM SQ. INCH Inch Inch
2900 600 5.126 34 24
IF 3 NUMBER OF DISTRIBUTION FROM EACH BRANCH TAKE OUT
SQ. INCH Inch Inch
1.709 18 16
MM MM
0 0
MM MM
3600 750
2200 600
NUMBER OF BRANCH TAKE OUT FROM COMMON HEADER
MM MM
850 600
NUMBER OF DISTRIBUTION FROM EACH BRANCH TAKE OUT
MM MM
450 400
