Firefighting with Water Motor – Driven Foam Pump System

Tyco Fire Protection Products showcased its experience in water mist suppression options at the International Water Mist Association (IWMA) Conference in Istanbul. Dr Tim Nichols, Sales Director Water Mist EMEA, gave a presentation entitled ‘Fire Protection of Compact Archive Storage using Water Mist’, the place he mentioned how the extinguishant is properly suited to the safety of irreplaceable works and artefacts in highly valuable buildings.
Tim’s lecture targeted on a fire test protocol that was formulated to confirm the performance and use of Tyco’s personal water mist resolution, AquaMist, in an historical constructing, house to valuable archive storage. The National Fire Protection Association (NFPA) 750 normal requires that, when employing a water mist suppression system, fire testing is undertaken pertinent to the danger. However, of the printed hearth test protocols listed in NFPA 750, none details the requirements for archives that contain roller (compact) racking. Many of the racks in the targeted building are of the ‘roller’ kind, which restrict the amount of area for constructing companies, including these for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to incorporate test rig and structure, take a look at sort, fire load, data acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and well being and safety procedures (for occasion, the fire brigade). The related efficiency based fire checks have been then designed to copy the range of software parameters related to archive storage.
While ignition sources on the authentic website were identified to be minimal, and the principle fire source confirmed as arson, the multi-level constructing poses quite a few challenges that had to be thought-about when formulating the hearth take a look at protocol to guarantee efficient protection. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute in the path of the confined surroundings of the archive storage basement level. Items are stored in a mix of open racks and compact racks, which provide less than a 150mm gap between themselves and the ceiling, and there’s limited on-site water storage. Pre-test risk analysis also highlighted restricted entry and exits beneath and above ground, so it is important for cupboard space to be maximised and safe egress provided in case of the occasion of a fire. In addition, the extremely valuable nature of the storage contents meant that the chosen hearth suppression answer had to ensure minimal damage to these historical gadgets.
To obtain validation, the checks had to meet numerous aims. These comprised fast management of the fire inside a prescribed area (in this case, defined as within a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral injury by way of water clean-up. They also had to take into account varied parameters, including the desired excessive pressure mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) outlined according to a method primarily based on the amount of nozzles activating throughout testing.
The hearth exams, carried out for both open and roller racks with minimal storage gaps, have been undertaken in a personalized test rig, designed, constructed and fitted to replicate the precise specification, racking preparations and storage materials of the location. Considered a high load, the gasoline supplies had been similar to that present in archive storage, including paper, books, micro-film and CD cases.
Success was outlined by pass or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge strain, discharge sequence, hearth unfold, temperature, hearth injury and water consumption. In Downloadable exams, Tyco’s AquaMist system operated effectively and was noticed to suppress and management the hearth effectively. The challenge team was impressed by the lack of fire and smoke damage to the materials and structure and the product has since been put in in the building in question.
“The IWMA convention is a incredible alternative to highlight the advantages of water mist as a fire suppression answer, in addition to demonstrate its versatility in a variety of functions,” feedback Dr Tim Nichols. “Identifying a gap in the market and taking the chance to formulate a fireplace test protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate protection of a customer’s extremely valuable assets.”
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