(Lecture) 14. ESD - Electrical System Design for Residential Occupancies
Sales Related Basics of HI-FOG in LH-OH Occupancies.
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Transcript of Sales Related Basics of HI-FOG in LH-OH Occupancies.
Definitions: LH = Light Hazard Occupancies OH = Ordinary Hazard Occupancies
OH1, OH2, OH3, OH4 In “Marioff language” LH basically refers to US standards and OH to European
standards
LH / OH occupancies are applications where the predominant hazard consists of Class A combustibles (solid) Hospitals Hotels Libraries Offices Residential buildings Schools Churches Data centres Etc. other similar spaces with similar type of fire load
GENERAL: Fire Protection
Three different fire fighting terms are used Fire Extinguishment
Complete elimination of any flaming or smouldering fire (so, that when left unprotected, no re-ignition takes place)
Fire Suppression
A sharp reduction in the heat release rate and prevention of re-growth of the fire
Fire Control
Limitation of fire growth and prevention of structural damages
Important to understand the difference between the terms so that no false expectations are given to the client
Fixed fire fighting systems are typically designed for suppression and control
Manual intervention always needed for complete extinguishment
GENERAL: Fire Protection
All the water mist systems are unique systems Hence the capability/performance of an individual system cannot be
generalised to cover any other system
The only way to evaluate different systems is through full scale fire testing System performance and all the important system design/installation
parameters are defined in application related full-scale fire tests NOTE! The testing must be done as per pre-determined acceptance
criteria released by a approval authority such as FM, VdS, IMO etc. Marioff has been the pioneer for developing the testing criteria
Basis for most international standards applied widely today
GENERAL: Water Mist Systems
VdS OH1 fire test-office application
Example: Full Scale Fire Test
Conventional sprinkler Water flux density: 5 l/min/m2
HI-FOG sprinkler (GPU) Water flux density: 0,6 l/min/m2
HI-FOG system performance has been proven to be better or equivalent to the conventional sprinkler system by full scale fire testing
HI-FOG vs. Traditional Sprinkler
A conventional sprinkler system with the flux density of 5 l/min/m2
HI-FOG is equivalent
With 90 - 70 % less water
To
But
Principle of Operation
Oxygen
CombustiblesHeat
Unbreakable chain reaction
HI-FOG® Provides efficient cooling
as well as radiant heat blocking
HI-FOG® Water mist evaporates
efficiently thus providing local inerting at the heart of the fire
HI-FOG® Fire Protection Cycle
High pressure
High pressure
Water Mist
Water Mist Heat blockingHeat blocking
Safe to evacuateSafe to
evacuateSafe for people
Safe for people
Safe to access and extinguish
Safe to access and extinguish
Low water damage
Low water damage
High coolingHigh cooling
Low oxygen at the point of fireLow oxygen at the point of fire
Low fire damageLow fire damage
Safe for propertySafe for property
Powerful suppression
Powerful suppression
High evaporation
High evaporation
High penetration
High penetration
High water surface areaHigh water
surface area
High water speed
High water speed
Gaseous 3D behaviour
Gaseous 3D behaviour
Low water consumptionLow water
consumption
Small water tanks
Small water tanks
Small pipingSmall piping
Space for other useSpace for other use
Quick installation
Quick installation
Supporting your
business
Supporting your
business
System approvals are gained through the appropriate approval procedure Full-scale fire testing Component testing Etc.
System approvals are a really important sales tool Proof of the system performance Marioff has the widest range of approved systems than any other water mist
manufacturer VdS Ordinary Hazard 1 (HI-FOG 2000) VdS Ordinary Hazard 1 (GPU) FM Light Hazard (HI-FOG 2000) FM Light Hazard (GPU) VdS Ordinary Hazard 2 for parking garages VdS Ordinary Hazard 3 FM for computer room subfloors (DAU) Etc. other more or less relevant approvals
Also the evidence provided by non-approval procedure related full-scale fire testing etc. is valuable information
System Approvals
Strong R&D
Over 6000 full-scale fire tests
Certificates of approvalFM - Factory MutualVdS - Verband der SchadenversichererDet Norske VeritasLloyd’s Register of ShippingAmerican Bureau of ShippingGermanisher LloydBureau VeritasRegistro Italiano NavalePolish Register of ShippingRussian Maritime Register of ShippingMarine Safety Agency, United KingdomSwedish National Maritime AdministrationFinnish National Board of NavigationNorwegian Maritime DirectorateDanish Maritime AuthorityDirectorate of Shipping of IcelandMalaysian Fire Services DepartmentMaritime Safety Authority, New ZealandMELTT, FranceDGSMA, The NetherlandsMMMMSCD, GreeceMarine Board of Victoria, AustraliaAustralian Maritime Safety AgencyTransport Canada...
World’s leading water mist system specialist
NFPA750 Standard on Water Mist Fire Protection Systems, 2003 Edition minimum requirements for design, installation, maintenance and testing
• CEA4001 Sprinkler Systems - Planning and Installation• wherever practicable
• NFPA13 Standard for the Installation of Sprinkler Systems• wherever practicable
• NFPA13R Standard for the installation of sprinkler systems in residential occupancies up to and including four stories in height
• wherever practicable
• FM Global Property Loss Preventation Data Sheet 4-2; Water Mist systems
• FM Global Property Loss Preventation Data Sheet 2-8N; Installation of Sprinkler Systems
Standards
Efficient Cooling Enables good fire fighting
performance
Local inerting Removes oxygen from the heart of
the fire Enables good fire fighting
performance
Efficient radiant heat blocking Prevents the fire from spreading Makes evacuation & fire fighting
easier and safer Prevents structural etc. heat related
issues at the proximity of the fire Less activated sprinklers
Helps to minimize water damages
Small amounts of water Less water related damages Short down time for the building With traditional sprinkler water
damages often exceeds fire damages
Small water storage needed Small water feed needed
Smoke scrubbing capabilities Helps to minimise the smoke
damages
Fast activation Due to the low RTI value of the
sprinklers as well as the fairly low activation temperature
Smaller fire damages
Smaller smoke damages Rapid suppression and control of the
fire
Enclosure integrity not needed Good when fighting against gas
systems
Clean fire fighting agent i.e. potable water Environmentally friendly Safe for people
General Sales Arguments
Small piping Easy to route to difficult places and
do retrofits Easier to install Small trough holes
Pipes can be bent Easier installation Better aesthetic result
Stainless steel pipes No corrosion clean water Long lifetime
Cutting ring connections No welding needed Leak proof high pressure fitting
Compact pump units Does not consume valuable space
Self contained solutions E.g. good for cases where for
example electricity is not available
Several different kind of system variations Possible to optimize the system for
the customer / regulation needs
Gaseous penetration Water mist fills the space in 3D Enables good fire fighting
performance
No fire by-products Exists with some gas based systems
Less sprinklers overall Large coverage areas per sprinkler
General Sales Arguments…
Turn-key deliveries
Fewer headaches, lower costs
Traditional sprinkler and gas businesses are highly fragmented Consultants, component manufacturers, suppliers, installers... Who is responsible?
Marioff provides expert services for the whole system lifecycle System consultation and engineering Turnkey project management Production and installation Commissioning and training Maintenance, system upgrades and spare parts We ensure the quality of HI-FOG® systems and services
Understanding! The application i.e. the occupancy being protected Customer requirements / needs and converting them into HI-FOG reality
Main system components: Pump unit
Type chosen and dimensioning determined case specifically Section valves
Type chosen case specifically Sprinklers
Type chosen case specifically Tubing & tubing components
HI-FOG Design Issues In General
According to CEA4001 or EN12845 ( European)
(Note! Flux densities are for conventional sprinkler systems)
Dimensioning of the System
Hazard Class
Operation time
Typical applications
LH 30 min Prison, low fire load areas of offices or schools
OH1 60 (40) min Hospital, hotel, library, restaurant, school, office, computer room
OH2 60 min Car park, brewery, biscuit factory, laboratory, laundry
OH3 60 min Electronics factory, department stores, shopping centres
According to NFPA13 ( US)
(Note! Flux densities are for conventional sprinkler systems)
Dimensioning of the System
Hazard
class
Flux density Area of
operation
Operation
time
LH 4,1 l/min/m2 139 m2 30 min
OH1 6,1 l/min/m2 139 m2 60 min
OH2 8,1 l/min/m2 139 m2 60 min
EH1 12,2 l/min/m2 232 m2 90 min
EH2 16,3 l/min/m2 232 m2 90 min
Typical applications: Churches, Clubs, Educational, Hospitals, Libraries, Museums, Offices
(incl.data processing), Restaurants, Theaters and Auditoriums (excluding stages), Unused attics
Dimensioning related definitions (CEA4001)
Area of Operation
= The maximum area over which it is assumed, for design purposes, that sprinklers will operate in a fire.
Area of Operation, hydraulically most unfavourable
= The location in a sprinkler array of an area of operation of specified shape at which the water supply pressure is the maximum needed to give the specified density
Further information
Ari Hakala
Sales Manager, Buildings
Marioff Corporation Oy
Buildings and Construction Segment
+358 40 558 9202
www.marioff.com