As per ANSI/ASHRAE standards 62.1.2004 - Recommendation provide 3.7 lit/sec/m2 and exhaust is not required if two that are at least 50% to the outside. - Provide indoor air quality for the system. - For smoke management system the smoke zone shall be 2500 m2. Therefore, for our project shall be the following: - The selected area shall be ventilating according the ASHRAE standards 62. For 12000 m2 cfm = 12000 x 3.7 x 2.1 = 93.240 cfm. Shall be divided into 5 exhaust fan two speed fire protected each one as 20 m3/sec. As per smoke calculations the second shall be 30 000 cfm for smoke removal
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As per ANSI/ASHRAE standards 62.1.2004
- Recommendation provide 3.7 lit/sec/m2 and exhaust is not required if two or more sides comprise walls that are at least 50% to the outside.
- Provide indoor air quality for the system.
- For smoke management system the smoke zone shall be 2500 m2.
Therefore, for our project shall be the following:
- The selected area shall be ventilating according the ASHRAE standards 62.1.2004 by 3.7 lit/sec/m2.
For 12000 m2
cfm = 12000 x 3.7 x 2.1 = 93.240 cfm.
Shall be divided into 5 exhaust fan two speed fire protected each one as 20 000 cfm as ventilation, 14.1 m3/sec.
As per smoke calculations the second shall be 30 000 cfm for smoke removal at 300 C for one hour.
Project Name: Nozha City Center Date: 10/2007
Project No: 1127 Computed By: A .Salah
SMOKE MANAGEMENT DESIGN CALCULATION SHEET
Area Served: Car Park
Ventilation Type: Mechanical Ventilation Fans
Brief description: Exhaust through high temperature rated fans.
Fresh Air make-up through Ramps and slab openings.
Design Parameters:
Fire Size (A) = 4 x 4
Fire Area = 14
Heat Rate ( Qr) = 278
Heat Production (Q) = 4000 kw
Perimeter ( P ) = 15.194 m
Smoke Layer Height (Y) = 2.5 m
Smoke Layer Depth (Db) = 1.5 m
Air Specific Heat ( Cp) = 1.01 kj/kg.k
Outside Air Temp. (To) = 40 Deg.c 313 k
Calculations
Min. Smoke Flow Rate (Mf) =
= 11.291 kg/s
Temperature Rise (Tr) = Q / (Mf x Cp)
= 350.74 Deg.c
Max. Smoke Temp. (Tc) = To + Tr
= 390.74 664 K
Air Volume Flow rate (Ma) = Mf x Tc / (1.2 x To)
= 19.953
= 42300 cfm
Note:
As per ANSI/ASHRAE standards 62.1.2004
Recommendation provide 3.7 lit/sec/m2
Parking Area= 12000
93250 cfm
Shall be divided into 5 exhaust fans two speed fire protected each one is 20 000 cfm for ventilation.
As per NFPA part 92B
Make up fresh air shall be supplied from Ramps and Slab opening.
ECG Engineering Consultants Group
m2
kw/m2
0.188 x P x Y1.5
=
= Deg.0c
m3/s
m2
Car parking area divided into 5 fire zones 2500 m2 each , Total exhaust 50,000 cfm.
Direct drive two speed smoke exhaust fans of 14.1 m3/s (30,000 cfm) rating shall be provided in each parking zone , Fire rated for 300oC for 1 HR. Motor and Bearing shall be out of air stream.
Project Name: Nozha City Center Date: 10/2007
Project No: 1127 Computed By: A .Salah
SMOKE MANAGEMENT DESIGN CALCULATION SHEET
Area Served: Car Park
Ventilation Type: Mechanical Ventilation Fans
Brief description: Exhaust through high temperature rated fans.
Fresh Air make-up through Ramps and slab openings.
0.58 x p x {(g x Qf x w2 ) / ( p x cp x Ta )}1/3 X (Z + L ) X {1 + 0.22 ( Z + 2L ) / W } 2/3
Deg.0c
m3/s
ECG Engineering Consultants Group
Project Name: Nozha City Center Date: 4-2008
Project No: 1127 Computed By: A .Salah
SMOKE CONTROL FOR THE BUILDING
Area Served: Shopping Mall
Ventilation Type: Exhaust through high temperature rated fans.
Brief description: Fresh Air make-up through open doors.
Design Parameters
Q = Total heat output of a fire (Kw)
D = Diameter of fire source.
Virtual origin.
Convective portion of total heat release = Q / 1.5
mean Flame height Z = Smoke clear height.
D = Flame diameter = Aeq ^ 0.5
M = Mass flow rate in the plume.
dT = Qc / MCp
d = Depth of smoke layer.
= 2 when extraction near wall & 2.8 when away from wall.
N = min number of extraction points from smoke layer.
Small diameter source Large diamter source
Flame height lower than smoke clear height
Flame height greater than smoke clear height
Plume Temperature Number of extraction points
zo =
Qc =
Z1 =
Cp = Specific heat capacity of air ( 1KJ/Kg.K )
QC2 /5
D>14
QC2 /5
D<14
z1=0. 035 . Q
C2/3
(D+0. 074 .QC2/5 )
2/3
M=0. 071 .QC1 /3 .( z−z0 )
5 /3 M=0. 071 .QC1 /3 . z5/3
M=0 .0054 .QC . z
0 . 166 .QC2 /5+z0
V =Mρ0
+QC
ρ0T 0CP
M crit=β [ gd5 T 0 ΔT
( ΔT +T 0 )2 ]
0 .5
β
ZO=0 . 083 Q2/5−1. 02 D
z1=0 .2 . QC2/5
T m=QC
M . Cp+T o
N=M
M crit
q = 500 KW/m²Aeq = 4 m²
Q = 3000 KWQc = 2000 KW
D = 2.0 m
21 14 D = 28 Large
10.46 Large diameter source
4.5 m 0.0014
H = 6.0 m 40 °C
d = 1.5 m 313 KSmall diameter source Large diamter source
4.2 m 2.4 mFlame is not a smoke layer
Flame height lower than smoke clear height
M = 11.0 Kg/S M = 11.0 Kg/S.dT = 182.4 °C dT = 182.3 °C
495.4 K 495 K
V = 14.5 m³/S V = 14.5 m³/S
Mcr = 8.3 Kg/S 8.3 Kg/S
V = 30650 cfm V = 30700 cfmN = 2 N = 2
If Extraction away from wall =2.8
11.7 Kg/S 11.7 Kg/S
N = 1 N = 1
Flame height greater than smoke clear height
M = 14.0 Kg/S.dt = 142.9 °C
455.9 KV = 17.0 m³/S
Mcr = 8.0 Kg/SV = 36000 cfm
DEEP SEATED COMBUSTIONM = 14.2 Kg/S.
Note:
**** Nos. Smoke exhaust fans of *** cfm shall be provided on the Roof
Qc2/5 =
Qc2/5/D =
z = zo =
To =
To =
z1= z1=
TM = TM =
Mcr =
Mcr = Mcr =
Tplume =
The Exhaust fans shall be Rated for 300 Deg.oc for 1 hr.
β
B53
Ahmed_Salah: 290 kw/m2 for Offices 278 kw/m2 for Garage 550 kw/m2 for Shops 260 kw/m2 for Industrial 249 kw/m2 for Hotel rooms 225 kw/m2 for Heat release rate for restricted fuel atriums. 500 kw/m2 for Heat release rate for atriums containing wood, furniture or other combustible materials.
B54
Fire Area
B60
Smoke clear height.
E61
Ambiant Temp
Project Name: Nozha City Center Date: 10/2007
Project No: 1127 Computed By: A .Salah
SMOKE MANAGEMENT DESIGN CALCULATION SHEET
Area Served: Offices
Ventilation Type: Mechanical Ventilation Fans
Brief description: Exhaust through high temperature rated fans.
Fresh Air make-up through automatic doors.
Design Parameters:
Fire Size (A) = 2 x 2
Fire Area = 4
Heat Rate ( Qr) = 93
Heat Production (Q) = 372 kw
Perimeter ( P ) = 8 m
Smoke Layer Height (Y) = 2.5 m
Smoke Layer Depth (Db) = 1.5 m
Air Specific Heat ( Cp) = 1.01 kj/kg.k
Outside Air Temp. (To) = 40 Deg.c 313 k
Calculations
Min. Smoke Flow Rate (Mf) =
= 5.94508 kg/s
Temperature Rise (Tr) = Q / (Mf x Cp)
= 61.9532 Deg.c
Max. Smoke Temp. (Tc) = To + Tr
= 101.953 Deg.c 375 k
Air Volume Flow rate (Ma) = Mf x Tc / (1.2 x To)
= 5.93
= 12600 cfm
Note:
As per ANSI/ASHRAE standards 62.1.2004
Recommendation provide 3.7 lit/sec/m2
Parking Area= 12000
93300 cfm
Shall be divided into 5 exhaust fans two speed fire protected each one is 20 000 cfm for ventilation.
As per NFPA part 92B
Make up fresh air shall be supplied from Ramps and Slab opening.
ECG Engineering Consultants Group
m2
kw/m2
0.188 x P x Y1.5
m3/s
m2
Car parking area divided into 5 fire zones 2500 m2 each , Total exhaust 50,000 cfm.
Direct drive two speed smoke exhaust fans of 14.1 m3/s (30,000 cfm) rating shall be provided in each parking zone , Fire rated for 300oC for 1 HR. Motor and Bearing shall be out of air stream.
PROJECT NAME: PRIME TOWER DATE: 4/2007PROJECT NO.: 1147 COMPUTED BY: A. Salah
STAIR CASE PRESSURIZATION DESIGN CALCULATION SHEET
Input Data:
No. of levels (including ground floor) : 9Average level height : 3 m
Floor Area : 2200
Exterior building wall area per floor : 105Wall Tightness : 2 (1=Tight, 2=Average, 3=Loose, 4=Very Loose)
Stairwell wall area per floor : 14Wall Tightness : 2 (1=Tight, 2=Average, 3=Loose)
The area gap around each stairwell door : 0.024Outside design temperature : 46 deg CStairwell temperature : 28 deg C
Stairwell door width : 1 mStairwell door height : 2.1 mForce to overcome door closer : 53 NDistance from door knob toedge of knob side of door : 75 mm
Assumptions:The pressure difference between stairwell and building at stairwell bottom : 20 Pa
Critical Velocity : 1.524 m/s
Height Limit Check:
Maximum allowable pressure difference
between the stairwell and the building = 70.48 Pa
Height limit below which satisfactory
pressurization is possible = 209.3 m
Calculations:
ECG Engineering Consultants Group
m2
m2
m2
m2
m2
I22
User2: If not known, use 0.024 sq.mt.
I26
User2: Standard sizes: 0.8, 0.9, 1.0, 1.1, 1.2
I27
User2: 2.1 is a standard height
I28
User2: Use 53 N Range 26.4 to 61.6 N
I30
User2: 75 mm is a standard
I34
User2: Use 20 Pa The minimum allowable pressure difference is 12.4 Pa.
I36
User2: Use 1.524 m/s (300 fpm as mentioned in "Handbook of Air Conditioning and Refrigeration" by Shan K.Wang)
Abo Flow area between the building and outside per floor = 0.022
Asb Flow area between stairwell and the building per floor = 0.026
B Pressure difference per height due to stack effect = 0.6 Pa/mPsb Pressure difference between stairwell top and the building = 27.5 Pa
Simple stairwell pressurization:
Q Flow rate of the pressurization air = 0.9 (=
Canadian stairwell pressurization:
In this system, an exterior stairwell door opens automatically upon system activation. In addition,the lower two floors will be considered opened, while the others doors will be considered closed
I. Opened doors section:Pressure difference at the bottom of the section = 20 PaPressure difference at the top of the section = 21.66 PaFlow factor = 3.83 m/s
Open stairwell flow area = 0.85
Effective flow area = 0.02
Flow rate from this section = 0.17 (=
II. Closed doors section:Pressure difference at the bottom of the section = 50.72 PaPressure difference at the top of the section = 64.34 PaFlow factor = 6.36 m/s
Effective flow area = 0.03
Flow rate from this section = 1.14 (=
III. Exterior stairwell door:Pressure difference at the exterior door(~ at 1.5m height) = 47.81 Pa
Open exterior stairwell door effective flow area = 0.85
Flow rate from this section = 4.95 (=
The total flow needed to pressurize the stairwell
at the above conditions is the sum of these three separate flows = 0.17 + 1.136 +
= 6.25
(=
m2
m2
m3/s
m2
m2
m3/s
m2
m3/s
m2
m3/s
m3/s
PROVIDE STAIRCASE PRESSURIZATION FAN ( 13,500 CFM ) FOR EACH STAIR
STAIR CASE PRESSURIZATION DESIGN CALCULATION SHEET
Construction element
Wall Tightness - Area ratio
Tight Av. Loose V. Loose(1=Tight, 2=Average, 3=Loose, 4=Very Loose) 1 2 3 4
In this system, an exterior stairwell door opens automatically upon system activation. In addition,the lower two floors will be considered opened, while the others doors will be considered closed
357 cfm)
2408 cfm)
10484 cfm)
5
13250 cfm)
) FOR EACH STAIR
Door Width (mm)120077.5
7065
57.552.5
Project Name: Nozha City Center Date: 10/2007
Project No: 1127 Computed By: A .Salah
Calculation Tile: Stair Pressurisation
Area Served: Stair case pressurisation
Ventilation Type: Pressurisation
Brief description: Fans Provided on Roof of stair case pressurisation
Design Parameters
Total no of Floors = 20
Egres Velocity across open door (Qs) = 0.75 m/sArea of open door = 2.1 x 1
= 2.1
Number of open door (n) = 2
Egres Velocity (Ve) = 0.6 x Qs / A x nQs = Ve x A x n / 0.6
5.25
Leakage through closed doors on all floorsLeakage area of single leaf door = 0.024 sq.m
Air leakage thru closed tair case = k x Ae x p^0.50.14
Total no of closed doors= 18.00 nos
total Leakage thru closed doors= 2.53
Adding 1 & 2 = 6.52
= 13800 cfm
Note:-Two no,supply roof top fan of 5.39 m3/sec (12000cfm) will be provided on the Roof of stair case.
ECG Engineering Consultants Group
m2
m3/s
m3/s
m3/s
m3/s
C14
Ahmed_Salah: Including Ground Floor
C16
Ahmed_Salah: By Default H=2.1
E16
Ahmed_Salah: By Default W=1.0
ECG Engineering Consultants Group
Project Name: Nozha City Center Date: 10/2007
Project No: 1127 Computed By: A .Salah
SMOKE CONTROL FOR LIFT SHAFT
Area Served: Lift Shaft
Ventilation Type: Pressurisation
Brief description: Fans Provided on Roof
Design Parameters
Total no of Floors = 20
Egres Velocity (Ve) =
Area of door = 2.1 x 1
= 2.1
Leakage through closed doors on all floors 0.06 sq.m
Leakage area of lift landing door ) =
Air leakage thru lift landing door (Q) = k x Ae x p^0.5
100.0 30.480 100.0 6.309 1.0 15.850 1.0 3.281Put the GPM & Head in the cells, then see the HP, then get the standard HP from table and then put the equivalent kw.
GPM , ft , HP L\S , m , HP Standard HP Standard KW
GPM H ft HP L\S H m HP 1 0.75
100 20 0.8 6.3 30.48 3.9 1.5 1.1
200 120 9.3 12.0 40 9.7 2 1.5
300 140 16.3 14.0 50 14.1 3 2.2
400 160 24.9 16.0 60 19.4 4 3
500 180 35.0 18.0 70 25.5 5.5 4
600 200 46.6 20.0 80 32.3 7.5 5.5
700 220 59.8 25.0 90 45.5 10 7.5
800 240 74.6 30.0 100 60.6 15 11
900 260 90.9 35.0 120 84.9 20 14.7
1000 280 108.8 40.0 140 113.1 25 18.5
1100 300 128.2 45.0 160 145.5 30 22
1200 320 149.2 50.0 180 181.8 40 30
1300 340 171.7 60.0 200 242.4 50 37
1400 360 195.8 70.0 250 353.6 60 44
1500 380 221.4 80.0 300 484.9 75 55
1600 400 248.6 90.0 400 727.3 100 73.5
ECG Engineering Consultants Group
ECG Engineering Consultants Group
Project Name: Nozha City Center
Project No: 1127 3- Phase Amper = 380 x I x 0.8 x (3^0.5)FANS ELECTRICAL POWER SUPPLY 1- Phase Amper = 220 x I x 0.8Put the CFM in the cell, the see the KW , then get the standard KW from table.
Pipe size in (GPM , D") Pipe size in (L\sec , Dmm)
GPM D" P/100 FT L\sec D mm P/100 FT1 - 4 0.75 0.4 4.5 0.06 - 0.25 20 0.4 4.5
5 - 8 1 2.1 4.9 0.32 - 0.50 25 2.1 4.9
9 -15 1.25 1.6 4 0.57 - 0.95 32 1.6 4
16 - 23 1.5 2.1 4.1 1.01 - 1.45 40 2.1 4.1
24 - 45 2 1.3 4 1.51 - 2.84 50 1.3 4.1
46 - 72 2.5 1.8 4 2.90 - 4.54 65 1.8 4.0
73 - 128 3 1.4 4 4.61 - 8.08 75 1.4 4.0
129 - 265 4 1.1 4 8.14 - 16.72 100 1.1 4.0
265 - 484 5 1.3 4 17 - 31 125 1.3 4.0
485 - 720 6 1.6 3.4 31 - 45 150 1.6 3.4
721 - 1240 8 0.9 2.4 45 - 78 200 0.9 2.4
1241 - 1960 10 0.8 1.8 78 - 124 250 0.8 1.8
1961 - 2790 12 0.8 1.5 124 - 176 300 0.8 1.5
2791 - 3370 14 0.9 1.3 176 - 213 350 0.9 1.3
3371 - 4400 16 0.7 1.1 213 - 278 400 0.7 1.1
4401 - 5570 18 0.6 1 278 - 351 450 0.6 1
5571 - 6930 20 0.6 0.9 351 - 437 500 0.6 0.9
6931 - 10000 24 0.3 0.7 437 - 631 600 0.3 0.7
FAN COIL UNIT DRAIN
1 3/4" 20
2-6 1" 25
7-12 1 1/4" 32
13-18 1 1/2" 40
19-24 2" 50
25-30 2 1/2" 65
31-42 3" 75
ECG Engineering Consultants Group
EGAT Diffuser SelectionC.F.M C.M.H. in" mm
50 85 4 x 4 100 x 100100 170 6 x 6 150 x 150150 255 8 x 8 200 x 200200 340 10 x 10 250 x 250250 425 10 x 10 250 x 250300 510 12 x 12 300 x 300350 595 12 x 12 300 x 300400 680 14 x 14 350 x 350450 765 14 x 14 350 x 350500 850 14 x 14 350 x 350550 935 16 x 16 400 x 400600 1020 16 x 16 400 x 400650 1105 16 x 16 400 x 400700 1190 18 x 18 450 x 450750 1275 18 x 18 450 x 450800 1360 18 x 18 450 x 450850 1445 20 x 20 500 x 500900 1530 20 x 20 500 x 500950 1615 20 x 20 500 x 500
1000 1700 20 x 20 500 x 500
PROJECT: ARAB BANK (B-135) SUBJECT : Out let total quintity for the building DATE : SEP 2007
BASEMENT GROUND FIRST SECOND THIRD ROOF
S.R (600X250) 0
E.R (600X250) 0
E.R (150X150) 0
E.R (200X200) 0
E.R (300X200) 0
E.R (250X250) 0
E.R (650X150) 0
E.R (1200X150) 0
E.R (1500X150) 0
SW.C.D (300x300) 0
SW.C.D (350x350) 0
SW.C.D(250X250) 0
S.C.D (250X250) 0
S.C.D (300X300) 0
S.C.D (350X350) 0
S.C.D (450X450) 0
R.C.D (595x595) 0
D.V 150 mm 0
S.L.G (750X250) 0
R.L.G(750X250) 0
S.L.G (1000X100) 0
R.L.G (1000X100) 0
S.L.G (500X200) 0
R.L.G (500X200) 0
R.L.G (30 mX100mm) 0
R.L.G (10 mX100mm) 0
R.L.G (24 mX100mm) 0
R.L.G (15 mX100mm) 0
R.L.G (4 mX100mm) 0
R.L.G (10 mX250mm) 0
S.S.D (14.1m-2 slot) 0
S.S.D (29.5m-2 slot) 0
S.S.D (23.5m-2 slot) 0
S.S.D (18.1m-2 slot) 0
D.L (250X250) 0
D.L (400X400) 0
D.L (300X300) 0
D.L (200X200) 0
D.L (600X400) 0
ECG Engineering Consultants Group
ECG Engineering Consultants Group
PROJECT: ARAB BANK (B-135)
SUBJECT : ESTIMATE GPM for the building DATE : SEP 2007