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Dr T R Nichols CPhys MIFireE Mr A Palau Bosch Fire Protection of Compact Archive Storage.
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Transcript of Dr T R Nichols CPhys MIFireE Mr A Palau Bosch Fire Protection of Compact Archive Storage.
![Page 1: Dr T R Nichols CPhys MIFireE Mr A Palau Bosch Fire Protection of Compact Archive Storage.](https://reader038.fdocuments.us/reader038/viewer/2022103022/56649cdc5503460f949a7305/html5/thumbnails/1.jpg)
Dr T R Nichols CPhys MIFireE
Mr A Palau Bosch
Fire Protection of Compact Archive
Storage
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New Bodleian Library, Oxford University, UK
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Description of the Site
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Multi-Level and Multi-Type Risk Areas• 11 Levels
• Basement Archives
• Reading Rooms
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Description of the Site
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Archive Storage in Basement levels• Storage in open racks and
compact racks
• Low ceilings and confined with many obstructions (lighting, ducts)
• <150mm gap from racks to ceiling
• Compact racking gap 25mm to maximize storage and provide safe egress
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Risk Analysis
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Storage of various fire loads including paper, books, micro-film, CD cases
• Fire load very large
Irreplaceable historical works and artefacts
Large areas, below and above ground with difficult access and egress
Ignition sources minimal
Main fire source due to arson
On-site water storage limited
Limited space to run extinguishing system pipe work
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Consultant Assessment
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Objectives:• Quickly control fire within in prescribed area (defined as within a block
of racks)
• Control of temperature
• Attenuation of Radiation (stopping of flame spread)
• Minimize collateral damage through water clean up
Design Parameters• AMAO detailed as 144m2 but later defined on formula based on actual
quantity of nozzles activating
• Specified a high pressure mist system
• 30 minute run time
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Tender Process
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Tender process identified that NO third party protocol exists for risks
NFPA 750 requires that fire testing is undertaken pertinent to the risk8.2.4.1 Fire test protocols shall be designed to replicate the range of the application parameters associated with a particular hazard or occupancy
A performance based test was agreed with the stakeholders• Bodleian Library
Archivists Project Management
• Fire Consultant
• Independent verifier (Warrington Fire Research)
• Main Contractor
• Tyco Certified Distributor/Installer (EA-RS Fire Ltd)
• Tyco (LPG)
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Defining the Tests
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Pass/fail criteria
Protocol written to include:• Test rig and layout, and type of test
Open rack tests Compact rack test Variations of compact rack gaps 25mm upwards
• Fire load (material type and configuration)
• Data acquisition (sensors, imaging)
• Hardware required (pumps, nozzles, pipe, tank, generator)
• Health & Safety procedures (fire brigade, etc)
Location determined (Vinci Test Centre, Leighton Buzzard, UK)
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Test Rig
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Water Mist Components
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• Test Nozzles
• Pump Set
• Generator
• Water Supply
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Sensors
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• Thermocouples
• Probe & Plate type
• Pressure Transducers
• Cardboard Register (compact rack test only)
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Cameras
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• VGA + Intelligent Video to detect smoke & flame
• 720 HD
• Pan Tilt Zoom Combined Thermal
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Data Acquisition
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• Multi-channel analyser
• Data logging
• Temperature averaging function
• Time stamp
• Fully calibrated
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Location of Fire – Open Rack Test
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Fuel - 120 ml RON95 petrol
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Sensor & Camera Location - Open Rack Test
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Temperature Profile - Open Rack Test
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Order of Nozzle Operation - Open Rack Test
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Fire Spread - Open Rack Test
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Fire Damage - Open Rack Test
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As found As cleared showing damage to only one section
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Location of Fire – Compact Rack Test
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Fuel - 120 ml RON95 petrol
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Sensor & Camera Location - Compact Rack Test
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Temperature Profile - Compact Rack Test
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Temperature Profile - Compact Rack Test, Aisle Boundary
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Order of Nozzle Operation - Compact Rack Test
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Fire Spread - Compact Rack Test
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Fire Damage - Compact Rack Test
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Endorsement – Consultant & Test Authority
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Endorsement – Fire Brigade
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