Transcript Document

IFSA Conference 2008
Warehouse Protection
Options
Joachim Böke
Viking s.a.
K19 Sprinkler Concept
 Effective fire sprinkler protection
- price
- performance
 Approved by a recognized authority
 Flexibility in terms of installation and
logistics
Goals of logistics
 No limitation for goods like exposed expanded
plastics / candles – HHS4 up to 8.5 m
 Flexible concerning transverse flue space,
different types of pallets
 No in-rack sprinklers!
• Less Space between sprinkler and stored
material (10 cm – 15 cm)
• No fixed horizontal beam levels
• No water damage from damaged in-rack
sprinklers
K19 Sprinkler Concept
 New control mode ceiling sprinkler K19
(K275) “Enhanced control mode”
 Vertical barrier at every second rack upright
Limitation of damage and fire spread!
 Storage of exposed expanded plastic and
candles up to 8,5 m (and lower classes)
 No defined transverse flues needed
between rack uprights
Front view of the test rack
vertical Barriers
C
C
C
M
M
M
C
M
M
C
M
C
C
C
C
M
C
M C
C
C
C
M
M
C
M
M
C
M
C
C
M C
C
M
M
M
M
C
C
M
C
M
M
M
C
C
M
C
Ignition
12,0 m
M
M
M
M
M
C
M
6.5 m
C
M
C
M
2,3 m
3,7 m
5,1 m
M
M
Back view of the test rack
Pass / Fail criteria
 Horizontal fire spread limited to max 7
pallets in width or 6 meters (19.7’)
 No fire spread to the target rack
 Temperature at the ceiling can never
exceed 300°C (572 °F) for more than one
minute
Rapid fire spread
Test no. 3 - example
11 seconds:
Fire surpasses the top
of the 2nd storage level
31 seconds:
Fire reaches the
ceiling
34 seconds:
Simultaneous opening
of four first sprinklers
Sprinkler and Temperature measurement
Temperature measurement
Sprinkler temperatures_Test 3
Sprinkler temperatures_Test 3
T1
T2
T3
T4
T5
T5b
200
150
100
50
250
Temperature (°C)
Temperature (°C)
250
T6
T7
T8
T9
T10
T10b
200
150
100
50
0
0
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30
Time (min)
0
2
4
6
150
100
250
Temperature (°C)
Temperature (°C)
T11
T12
T13
T14
T15
T15b
200
150
100
50
0
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30
Time (min)
T16
T17
T18
T19
T20
T20b
200
50
0
10 12 14 16 18 20 22 24 26 28 30
Time (min)
Sprinkler temperatures_Test 3
Sprinkler temperatures_Test 3
250
8
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30
Time (min)
Results
Conclusion
 Successful fire test
 Effective protection concept
 Design Concept and K19 Sprinkler have
VdS approval
 Design Concept predominantly follows
“spray sprinkler” installation rules
Rack design (4,6 m: multiple row rack?!)
max. 12 m
max.8,5 m
max. 8,5 m
max 4,6 m!!!!!
0,2 m
Vertical Barriers: non-combustible material or combustible material
with special coating (2cm thick coated plywood).
Automatic Enclosed Rack Protection
Vertical
carousels
Vertical
Lift
Main Target
•
•
Water based effective and adequate fire
protection
- Price
- Lower installation cost
- Lower maintenance cost
- Performance
- Connection to existing sprinkler system
To be approved by
(No approved water based system available)
Fire tests
•
•
•
Fire test carried out in Sweden at SP
Low pressure deluge system (connection to
the sprinkler also possible)
Tested material: HHS 3 and HHS 4 plastic
boxes and mattresses
Fire tests set up
Fire tests
•
•
•
Three tests carried out
Two tests with opening on the front (1 m high
and the complete width of the rack)
One additional test with 0,33 m² additional
opening in the ceiling to test the limits of the
system
 All tests are acceptable, damage and
temperatures are higher at test 3
Test results
Test no.
1
2
3
Smoke alarm
01:18
01:16
01:06
System activation time
02:55
02:19
02:21
Full system pressure
03:15
02:38
02:48
Elapsed time to full system pressure
00:20
00:19
00:27
Activation times [min:s]
Average peak surface temperatures
Back wall:
68°C
67°C
97°C
Front wall:
38°C
35°C
62°C
Left hand side short wall
34°C
34°C
37°C
100°C
40°C
47°C
Right hand side short wall
Inside temperatures test 1 and 2
Test 1
Test 2
1000
1000
C1
C2
C3
C4
C5
600
800
Temperature [°C]
Temperature [°C]
800
C1
C2
C3
C4
C5
Pump failure
400
200
600
400
200
0
0
1
2
3
4
5
6
Time [min]
7
8
9
10
0
0
1
2
3
4
5
6
Time [min]
7
8
9
10
Fire at test 1
Damage after the tests (test 2)
Protection concept
• Suppress / control the fire inside the rack
• Design:
• At the sides
- Open water spray nozzles with vertical
spacing of about 2 m
- Spray angle 90° vs. spray angle 120°
• At the ceiling
- Open K=21 window sprinklers, for cooling
• Minimum operating pressure: 4 bar
Nozzle arrangement
Spray
angel
90°
120°
90°
120°
90°
120°
Thank you