motorised fire & smoke protection in ventilation ducts ... fire & smoke protection in...
TRANSCRIPT
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Motorised Fire & Smoke Protectionin Ventilation Ducts
Mechanical Smoke Extraction
ASHRAE SeminarCollege of the North Atlantic, Doha, Qatar
20th April 2013
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Agenda
• Introduction
• Benefits of Motorising Fire & Smoke Dampers
• Mechanical Smoke Extraction (Smoke Control)
• Monitoring & Control Systems for F&S applications
• UL / EN Comparison
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Introduction
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Belimo Safety Solutions Europe
Fire protection in buildings – The 3 pillars of fire protection
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Technical
• Fire dampers
• Fire alarm system
• Extinguishing systems(e. g. sprinkler)
• Smoke control systems
• Overpressure systems
Organisational
• Alarm and evacuation plans
• Emergency concepts
• Training of staff
• Periodical evacuation trainings
• Briefing of the fire brigade
Constructional
• Fire compartments
• Smoke compartments
• Use of fire retardant materials
• Escape routes, emergency exits
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Belimo Safety Solutions Europe
Field of applications
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Fire protection:Motorisation of fireand smoke dampers
Smoke control /smoke extraction:Motorisation ofsmoke controldampers
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Benefits of MotorisingFire & Smoke Dampers
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Motorised Fire & Smoke Dampers
Impact of fires:
Loss and damage of…• Lives• Assets• Environment• Business operation• Adjacent buildings
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Motorised Fire & Smoke Dampers
Main protection target:
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The spread of Fire and Smoke within the building
through ventilation ducts must be prevented.
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Motorised Fire & Smoke Dampers
Where are fire dampers required?
• Basic principle: The defined protection targets from the fire safetyconcept of a building must be reached.
The spread of fire and smoke through ventilation ducts mustbe prevented.
• Fire dampers have to be used when:• Ventilation ducts penetrate fire walls• Ventilation ducts penetrate fire rated ceilings
Note: Fire dampers must be installed in such a way, thatcleaning and maintenance work is supported.
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Motorised Fire & Smoke Dampers
Early sealing of compartment with motorised fire dampers
• Activation of fire dampers by fire alarm system
• Activation directly by a relevant smoke detector
• Activation by the building managament system
Today's state of the art solution
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Motorised Fire & Smoke Dampers
Early sealing of compartment with motorised fire dampers
• Example animation "Hotel room"
• Ventilation off situation
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Non-motorised FDs Motorised FDs
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
By AFC Air Flow Consulting AG, Zurich, Switzerland
• Project objective• To demonstrate possible advantages (time gain) of the activation of a fire
damper installed in the outlet air duct by a smoke detector compared to the activation by a thermal fuse (fusible link)
• Approach• CFD simulations (Computational Fluid Dynamics) of a standardised office
fire on the basis of various room types
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Basic definitions• Typical office building• Room dimensions
• Small: 600.0 m2 (20 x 30 m)• Medium: 1‘200.0 m2 (30 x 40 m)• Large: 2‘400.0 m2 (40 x 60 m)
• Room height: 4.0 m• Ventilation
• Standard ventilation system• No smoke control system
• Sprinkler system: None
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
Smoke flow simulations
• Fire definiton• Slowly developing fire• No sprinkler system• Power: max. 1 MW
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Q_Brand
0
200
400
600
800
1000
1200
0 5 10 15 20
Zeit (min)
Bra
ndle
istu
ng (k
W)
Ohne Sprinkler
Mit Sprinkler (zumVergleich)
Fire
W/o sprinkler
With sprinkler(for comparison)
Pow
er (k
W)
Time (min.)
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Room layouts and location of the fire source• Small room 20 x 30 m
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10m
5m
5m
Fire source
10m
5m
Measuring pointa) Thermal fuseb) Smoke detector
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Room layout and location of the fire source• Medium room 30 x 40 m
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10m
5m
MP_KanalStart
10m
5m
10m
5m
Fire source
Measuring pointa) Thermal fuseb) Smoke detector
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
Room layouts and location of fire source• Large room 40 x 60 m
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10m
5m
MP_X1Y0MP_X0Y0MP_KanalStart
MP_X1Y1MP_X0Y1
MP_X0Y2
MP_X0Y3
10m
10m
5m
10m5m
Fire source
Measuring pointa) Thermal fuseb) Smoke detector
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Simulation results: Small room (600 m2, 2‘400 m3/h)
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5 [min] 42 [s]
Temperature
Smoke concentration
Sm
oke
conc
entra
tion
[mg/
m3 ]
Tem
pera
ture
[°C
]
Time [min.]
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Simulation results: Medium room (1‘200 m2, 4‘800 m3/h)
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10 [min] 12 [s]
Temperature
Smoke concentration
Sm
oke
conc
entra
tion
[mg/
m3 ]
Tem
pera
ture
[°C
]
Time [min.]
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Simulation results: Large room (2‘400 m2, 9‘600 m3/h)
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4 [min] 50 [s]
Temperature
Smoke concentration
Sm
oke
conc
entra
tion
[mg/
m3 ]
Tem
pera
ture
[°C
]
Time [min.]
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Motorised Fire & Smoke DampersSmoke Flow and Temperature Simulations
• Summary of the results / conclusions
• All results depend strongly on the fire szenario, the room layout and thelocation of detection
• All conclusions are valid under consideraton of the limits of the used model
• Thanks to the use of a smoke detector fire dampers can close from3:00 up to approx. 10:00 min earlier compared to temperature triggering
• There are even fire scenarios where the operating temperature is neverreached at the measuring point!
• Smoke detectors in combination with motorised fire dampers allow the mostreliable and earliest activation in case of a fire.
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Motorised Fire & Smoke DampersBRE Real Fire Test – Conclusions
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Public download:http://www.bre.co.uk/filelibrary/pdf/rpts/partb/ducts_and__dampers.pdf
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Motorised Fire & Smoke DampersBRE Real Fire Test – Conclusions
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Focus on the developing phase of a fire
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Motorised Fire & Smoke DampersBRE Real Fire Test – Conclusions
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fan-off
fan-on
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Motorised Fire & Smoke DampersBRE Real Fire Test – Conclusions
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FAN ON FAN ON FAN OFF500kW 300kW after 2 Min.
Average Closing Time 406s 551s -Did not Activate 2 out of 7 1 out of 9 4 out of 4
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Motorised Fire & Smoke Dampers
Sequence control of motorised fire dampers• Sealing of compartment and overpressure generation
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Motorised Fire & Smoke Dampers
Summary Non-motorised vs. motorised fire dampers
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Mechanical Smoke Extraction(Smoke Control)
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Some Facts
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Example:1 kg of burning PVC produces >500 m3 of smoke.
90% of the people die due to the smoke.
Smoke is a killer!
Smoke, usually toxic gases, is the mostcommon cause of death in a fire.
Where there is a fire, there also is smoke.
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Toxic Effects of Smoke
Composition of smoke:• Toxic gases• Irritant gases• Pyrolysis products (VOC)• Solid particles (carbon)
Symptoms:• Headache, vertigo, shortage of breath, scraping
in the throat, sickness• Loss of consciousness, breakdonwn, edema of
the lung, death
Five breaths are enough to die.
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Psycological Effect of Smoke
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Visibility in meters and (well-)beeing
20 +
10 - 20
0 - 10
Ease and orientation
Discomfort, insecurity
Fear, panic
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Source: University of Greenwhich
Movement and Spread of Smoke
• Smoke gets a lift (buoyancy) from hot gases inthe burning zone
• Smoke spreads within the burning zone
• With the stack effect smoke can spread inthe entire building
• Wind pressures on the facade of a buildinghave an influence on the movement of smoke,as well as ventilation and air conditioningsystems and elevators
• Smoke is rather difficult to control, dependingof what is burning, the size of the fire andhow hot it is
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Movement and Spread of Smoke
• Not only people are in danger of smoke, also assets values and the operability of businesses and organisations.
• Fire safety concepts for buildings should mandatorily also contain most effective measures for the protection against smoke (not only against heat).
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Mechanical Smoke Extraction(Smoke Control)
Where are smoke control systems required?
• Basic principle: The defined protection targets from the fire safetyconcept of a building must be reached.
• Depending on the construction and the use of a building, this can only be reached by using a powered smoke control system.
• Typically smoke control systems are used inbuildings with "special utilisation", e. g.:• Cinemas• High rise buildings• Hospitals• Hotels• Car parks, underground parking• Malls, shopping centers• Museums
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Basic Principle of Smoke Control
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Mechanical Smoke extraction
• Example animation "Cinema"
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Influence of Extracting Smoke
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With extraction of smoke
Without extraction of smoke
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Benefits of Extracting Smoke
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Cools the fire compartment anddelays / prevents flash and the subsequent development of the fire
Supports the evacuation of people andanimals by creating a smoke free layer
Supports rescue and fire fighting work
Protects assets and reduces the thermal effects on structural components during a fire
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Single Compartment
Definitions of Smoke Control SystemsAs an example acc. to EN 12101-8 (Product Standard SC Dampers)
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Single Compartment
Multi Compartment
Definitions of Smoke Control SystemsAs an example acc. to EN 12101-8 (Product Standard SC Dampers)
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Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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20 April 2013Belimo Safety Solutions Europe 44
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
![Page 45: Motorised Fire & Smoke Protection in Ventilation Ducts ... Fire & Smoke Protection in Ventilation Ducts Mechanical Smoke Extraction ASHRAE Seminar College of the North Atlantic, Doha,](https://reader030.vdocuments.us/reader030/viewer/2022012923/5aa9961c7f8b9a90188d1013/html5/thumbnails/45.jpg)
20 April 2013Belimo Safety Solutions Europe 45
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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20 April 2013Belimo Safety Solutions Europe 46
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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20 April 2013Belimo Safety Solutions Europe 47
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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20 April 2013Belimo Safety Solutions Europe 48
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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20 April 2013Belimo Safety Solutions Europe 49
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
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20 April 2013Belimo Safety Solutions Europe 50
Key1 Fire compartment 2 Smoke reservoir 4 Air inlet 5 Smoke barrier 6 Powered smoke and heat exhaust ventilator (fan) 7 Smoke control dampers for single compartments (EN12101-8 and EN1366-10) 8 Smoke control ducts for single compartments (EN12101-7 and EN1366-9) 9 Smoke control ducts for multi compartments (EN12101-7 and EN1366-8) 10 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted inside or outside of wall or floor 11 Smoke control dampers for multi compartments (EN12101-8 and EN1366-10)
mounted on the surface of the duct 12 Electrical equipment
![Page 51: Motorised Fire & Smoke Protection in Ventilation Ducts ... Fire & Smoke Protection in Ventilation Ducts Mechanical Smoke Extraction ASHRAE Seminar College of the North Atlantic, Doha,](https://reader030.vdocuments.us/reader030/viewer/2022012923/5aa9961c7f8b9a90188d1013/html5/thumbnails/51.jpg)
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Damper OPEN
Damper CLOSEDFire
1 2 3 4
5 6
7 8
1
2
3
4
5
10
11 12 13
14 15 16 17
Scenario Matrix1
1
Sensor No.
Damper No.1
Scenario
Cause & Effect(Example)
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Damper OPEN
Damper CLOSEDFire
1
2
3
4
10
11 12 13
14 15 16 171 2 3 4
5 6
7 8
Scenario Matrix
2
5
Scenario
Cause & Effect(Example)
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Damper OPEN
Damper CLOSEDFire
1
2
3
4
10
11 12 13
14 15 16 171 2 3 4
5 6
7 8
Scenario Matrix
3
5
Scenario
Cause & Effect(Example)
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20 April 2013Belimo Safety Solutions Europe 54
Damper OPEN
Damper CLOSEDFire
1
2
3
4
10
11 12 13
14 15 16 171 2 3 4
5 6
7 8
Scenario Matrix
4
5
Scenario
Cause & Effect(Example)
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Special Topic:Sprinkler Systems
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Effects of Sprinkler Systems from a Smoke Control Point of View
Positive:• Extinguishing the fire
Not positive:• Production of low temperature smoke• Production of moist and dense smoke• Creates more smoke volume
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Side-Effects of Sprinkler Systems (1/2)
If mechanical (non-motorised) fire dampers are installed and/or no smoke control system is available the following side-effects can be expected:
• Low temperature smoke passes through the ventilation system without triggering the fusible link. It also reduces the buoyancy of the smoke layer.
• Moist smoke produces sulphuric acid and smoke adhesion
• Dense smoke reduces visibility• Impedes the evacuation of people• Reduces the effectiveness of fire fighting
• Increased smoke volume generates overpressure• Increasing the speed of smoke travel through the system• Entering neighbouring zones• Contributes to the stack effect
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Side-Effects of Sprinkler Systems (2/2)
How to avoid the side-effects of sprinkler systems:
• Motorise all fire dampers (controlled by smoke detectors)• Stops the spread of fire and smoke – gains time• Regular checking of safety systems – only as good as the last time it was tested• MTBF is increased• Closing the dampers during the night (most fires start at night)• Energy saving
• Provide a smoke control system
20 April 2013Belimo Safety Solutions Europe 58
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20 April 2013Belimo Safety Solutions Europe 59
Monitoring & Control Systemsfor F&S Applications
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Monitoring & Control Systems
• Integration solutions• Conventional control with position feedback
20 April 2013Belimo Safety Solutions Europe 60
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Monitoring & Control Systems
• Integration solutions• Zone solution with controller
20 April 2013Belimo Safety Solutions Europe 61
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Monitoring & Control Systems
• Integration solutions• Bus networks such as Modbus RTU or BACnet MS/TP
20 April 2013Belimo Safety Solutions Europe 62
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Monitoring & Control Systems
• Integration solutions• Various protocols via DDC controller
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Monitoring & Control Systems
• Integration solutions• LONWorks® via gateways
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Monitoring & Control Systems
• Main advantages of monitoring & control systems for F&S dampers
• Reduced costs during the operation of the building
• Considerable reduction of wiring effort
• Considerable reduction of fire load within the building
• Full transparency througout the building• Event logging• Failure protocols• Regular testing Reduced risk level within the building
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Regular Testing Reduced RiskNon-motorised Fire Damper
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Risk level
Time (Months)
medium
12 24
high
6 Monthslow
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Regular Testing Reduced RiskMotorised Fire Damper (Conventional Actuator)
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Risk level
Time (Months)
medium
12 24
high
low
1 Mt. 2
6 Months
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Regular Testing Reduced RiskMotorised Fire Damper (Communicative Actuator)
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Risk level
Time (Months)
medium
12 24
high
low
1 Mt. 2
6 Months
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UL / EN Comparison
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UL / EN Standards Comparison
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Communauté EuropéenneUnderwriters Laboratories
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UL / EN Standards ComparisonMain Standards
20 April 2013Belimo Safety Solutions Europe 71
Fire Dampers• UL 555 Test Standard
Smoke Dampers• UL 555S Test Standard
Fire Dampers• EN 15650 Product Standard• EN 1366-2 Test Standard• EN 13501-3 Classification Standard
Smoke Control Dampers• EN 12101-8 Product Standard• EN 1366-10 Test Standard• EN 13501-4 Classification Standard
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UL / EN Standards ComparisonAdditional Standards
20 April 2013Belimo Safety Solutions Europe 72
• UL 33 Heat Responsive Links for Fire-Protection Service
• UL 873 Temperature-Indication and -Regulating Equipment
• ISO 10294-4 Test of thermal releasemechanism
• EN 60730 Automatic electrical controlsfor household and similar use
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UL / EN Standards ComparisonMain Differences – Typical Fire Dampers
20 April 2013Belimo Safety Solutions Europe 73
Typical Fire Damper (Curtain Damper)
Typical Multi-Blade Fire Damper Typical Combination Fire Smoke Damper
Single-BladeRound Fire Damper
Single-BladeSquare Fire Damper
Single-BladeRound Fire Damper
Multi-BladeFire Damper
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UL / EN Standards ComparisonMain Differences – Fire dampers (1/2)
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UL / EN Standards ComparisonMain Differences – Fire dampers (2/2)
20 April 2013Belimo Safety Solutions Europe 75
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UL / EN Standards ComparisonMain Differences – Smoke Control Dampers (1/2)
20 April 2013Belimo Safety Solutions Europe 76
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UL / EN Standards ComparisonMain Differences – Smoke Control Dampers (2/2)
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UL / EN Standards ComparisonMain Differences – Test Procedures
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UL 555
UL 555 S
Fire Enduranceand Hose Stream Cycling Dynamic Closure
Cycling Temp. Degradation Operation LeakageSmoke Damper
Combination Fire & Smoke Damper
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Thank you foryour attention!