Firefighting with Water Motor – Driven Foam Pump System

Tyco Fire Protection Products showcased its expertise 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’, where he mentioned how the extinguishant is properly suited to the protection of irreplaceable works and artefacts in highly useful buildings.
Tim’s lecture centered on a fire take a look at protocol that was formulated to confirm the efficiency and use of Tyco’s own water mist answer, AquaMist, in an historic constructing, residence to valuable archive storage. The National Fire Protection Association (NFPA) 750 normal requires that, when employing a water mist suppression system, hearth testing is undertaken pertinent to the danger. However, of the published fire check protocols listed in NFPA 750, none details the necessities for archives that comprise roller (compact) racking. Many of the racks within the targeted constructing are of the ‘roller’ sort, which limit the amount of house for building services, including those for extinguishing system pipework.
Together with the project stakeholders, Tyco devised the protocol to incorporate test rig and format, test kind, hearth load, data acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and safety procedures (for instance, the fireplace brigade). The related efficiency based mostly fireplace exams had been then designed to duplicate the vary of utility parameters associated with archive storage.
While ignition sources on the authentic site have been identified to be minimal, and the primary fireplace supply confirmed as arson, the multi-level building poses quite a few challenges that had to be thought of when formulating the fireplace check protocol to ensure effective safety. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute in direction of the confined surroundings of the archive storage basement degree. Items are stored in a mix of open racks and compact racks, which supply lower than a 150mm gap between themselves and the ceiling, and there may be restricted on-site water storage. Pre-test danger analysis also highlighted restricted entry and exits beneath and above ground, so it is essential for storage space to be maximised and safe egress offered in case of the occasion of a fire. In addition, the highly priceless nature of the storage contents meant that the selected fireplace suppression resolution had to ensure minimal damage to those historical objects.
To obtain validation, the tests needed to meet varied aims. These comprised speedy control of the fire within a prescribed area (in this case, outlined as within a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral damage by way of water clean-up. They also had to take into account varied parameters, together with the specified high pressure mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined according to a formula based on the amount of nozzles activating during testing.
The hearth checks, carried out for both open and roller racks with minimal storage gaps, were undertaken in a customized check rig, designed, constructed and fitted to replicate the exact specification, racking arrangements and storage materials of the site. Considered a high load, the gasoline supplies have been identical to that found in archive storage, including paper, books, micro-film and CD instances.
Success was defined by move or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge stress, discharge sequence, hearth unfold, temperature, fireplace damage and water consumption. In both checks, Tyco’s AquaMist system operated effectively and was observed to suppress and control the hearth efficiently. The venture team was impressed by the dearth of fireplace and smoke injury to the supplies and construction and the product has since been put in within the building in question.
เกจวัดแรงดันอาร์กอน is a incredible opportunity to spotlight the advantages of water mist as a fire suppression solution, in addition to reveal its versatility in a wide range of purposes,” comments Dr Tim Nichols. “Identifying a niche out there and taking the chance to formulate a fireplace take a look at protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate safety of a customer’s extremely priceless belongings.”
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