Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
Design Basis of Fire
Fighting Systems.
•
Design of Fire Hydrant System.
•
Design of Fire Deluge System.
•
Design of Beam Detection System.
Prepared By: Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
Table of Contents
1-
SCOPE OF DESIGN ..................................................................................................................... 1
2-
CODES & STANDARDS FOLLOWED ........................................................................................... 1
3-
MAIN DESIGN PRINCIPLE .......................................................................................................... 2
4-
FIRE WATER & PUMP DEMAND CALCULATIONS………………………………………………………………….3
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
1- SCOPE OF DESIGN
This document defines the Design Basis for Fire Water system and water deluge system
used for the following purposes:
•
Design of Fire Hydrant System.
•
Design of Fire Deluge System.
•
Design of Beam Detection System.
2- CODES & STANDARDS FOLLOWED
1) Main Yard and Outdoor Fire Hydrants System
NFPA - 24 & 26
2) Water Monitors System
NFPA - 11
3) Deluge fire Protection System
NFPA - 13 & 15
4) Piping & Hose System
NFPA - 14(1961 -62 edition)
5) Fixed Water Spray System
NFPA - 15
6) Automatic Fire Detection System
NFPA - 72(A-E)
7) Water Supply System
NFPA - 13,15,20&22
8) Fire Pumps
NFPA - 13 & 20
The fire protection system design will be adequate for the site conditions, to provide a
high degree of protection to the plant, equipment's, buildings and employees.
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
3- MAIN DESIGN PRINCIPLE
According to NFPA, the firefighting measures for building and equipment in the plant is as
mentioned in Table 3-1 below:
Table 3-1 List of Building & Structure
Sr.
Description
a
b
1
External Buildings of the Plant
2
Internal Areas of the Plant
√
3
Warehouse
√
c
d
√
√
√
Note:
a. Fire Hydrant
b. Fire Hose Reel
c. Fire Detection System
d. Fire Water Deluge System
2
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
4- FIRE FIGHTING WATER & PUMP DEMAND CALCULATION
The source of water for the Fire Water Systems will be the proposed underground water
storage with proposed automatic water make-up line for level control.
Water supply Detail are as under according to the Fire Scenarios:
FIRE SCENARIO (1): 2 Fire Monitor, 1 HOSE REEL and 180 DELUGE NOZZLES ARE
OPERATING.
D E N S IT Y
M A X IM U M C O V E R A G E A R E A
PUM P DEM AND
D IS C H A R G IN G S P R IN K LE R
M A X IM U M S P A C IN G
S IN G LE S P R IN K LE R R E Q U IR E D F LO W
A D D IT IO N F LO W A LLO W A N C E 2 M O N IT O R + 1 H O S E
T O T A L P U M P R E Q U IR E D
W A T E R R E S E R V IO R R E Q U IR E D
0.6
6400
3874
180
6
21.52222
565
4439
266340
G P M /S Q FT
24.6 L/M IN M S Q
S Q FT
G PM
N os
S Q .FT
G PM
81.48 L/M
G PM
G PM
U S G A LLO N S
FIRE SCENARIO (2): 2 Fire Monitor, 1 HOSE REEL and all 720 DELUGE NOZZLES ARE
OPERATING.
D E N S IT Y
M A X IM U M C O V E R A G E A R E A
PUM P DEM AND
D IS C H A R G IN G S P R IN K LE R
M A X IM U M S P A C IN G
S IN G LE S P R IN K LE R R E Q U IR E D F LO W
A D D IT IO N F LO W A LLO W A N C E 2 M O N IT O R + 1 H O S E
T O T A L P U M P R E Q U IR E D
W A T E R R E S E R V IO R R E Q U IR E D
0.6
6400
15496
720
6
21.52222
565
16061
963660
G P M /S Q FT
24.6 L/M IN M S Q
S Q FT
G PM
N os
S Q .FT
G PM
81.48 L/M
G PM
G PM
U S G A LLO N S
3
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
5- REQUIRED FIRE PUMP SPECIFICATIONS
FIRE SCENARIO (1): 2 Fire Monitor, 1 HOSE REEL and 180 DELUGE NOZZLES ARE OPERATING.
Flow
Head
Quantity
(GPM)
(m)
(set)
ELECTRIC FIRE PUMP
4500
15.3-Bar
1
DIESEL FIRE PUMP
4500
15.3-Bar
1
JOCKEY FIRE PUMP
300
16.3-Bar
1
Pump Type
•
•
•
Electric Driven Fire Water Jockey Pump ( 01 No )
o Flow= 68.1 m3/hr. , Head= 16.3 Bar
Electric Driven Fire Water Pump ( 01 No )
o Flow= 1022 m3/hr., Head= 15.3 Bar
Diesel Driven Fire Water Pump ( 01 No )
o Flow= 1022 m3/hr., Head= 15.3 Bar
Above 03 x pumps have auto start & stop sequence as per NFPA through pressure
switches installed on main fire water header. During normal scenario electric driven
Jockey Pump maintains the main header pressure.
4
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
FIRE HYDRANT
SYSTEM
5
FH
-1
0
FHD
FHD
201烟火药
制造及曳光
钢芯压药工
房
FHD
202枪弹
装配及弹
头装配工
房
FHD
Hosereel Cabinet
FH
-1
2
箱变
FHD
6
Hydrants = 33 Nos
FHD
5
FH
-4
FH
-1
FHD
废水处理池
FHD
FH
-
FH
FHD
FH
-
FHD
FH
-7
FH
-1
1
FHD
FH
-9
FHD
FH
-8
3
-1
FH
Pipe 300mm
-1
5
4
301
Pipe 250mm
FH
-1
8
FHD
Pipe 200 mm
原有靶场
FH
2
-1
熔
压
6
-1
9
工
房
-1
7
-3
Pipe 100mm
FH
铅
FH
-2
8
FH
FHD
FH
47
10
FHD
FH
-
Pipe 150mm
Auto Targeting Fire Water Monitor = 2Nos
0
FH
-3
1
W REQ
AT U
E I
U
FO S 516 R T RED
OF R GA ,0 A
FI 60 LLO00 NK
RE M N
FI INU S
GH T
TI ES
NG
FHD
FH
-4
5
10
FH
-2
1
3
FH
枪
弹
27
FHD
Manual Fire Water Monitor = 7 Nos
-2
2
零
件
制
Gate Valve
造
工
FH
房
3
FHD
FH
-4
4
-2
0
FH
-3
1
FH
-
-3
Automatic Fire Water Monitor = 5 Nos
FH
FHD
6
FHD
PU
86 MP
G P 00
M
FH
-3
2
FHD
FH
-
-4
FHD
PUMP CAPACITY 8,600
GPM FOR FIRE HYDRANT
& DELUGE SYSTEM
FHD
FH
FHD
2F
FH
FH
-2
-2
1
6
FH
-2
9
FH
-3
9
FHD
FHD
FH
-3
4
FH
-2
5
FHD
FH
-2
FH
FHD
-3
5
-2
4
FIRE HYDRANT SYSTEM
FHD
FH
-4
3
Title:
FH
Client:
FH
-3
FH
FHD
-3
FHD
0
FH
FHD
1
-4
FHD
FHD
FH
-4
7
FH
-
38
FH
-4
6
Contractor:
2
Date:
Ref. No.
Designed by:
Scale:
Naqash Kazmi
1:1
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
FIRE DELUGE SYSTEM
6
Naqash Kazmi (CFPS®) NFPA
CERTIFIED FIRE PROTECTION SPECIALIST(CFPS®)
BEAM DETECTION
SYSTEM
7