Firefighting with Water Motor – Driven Foam Pump System

Tyco Fire Protection Products showcased its expertise in water mist suppression solutions on 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 discussed how the extinguishant is properly suited to the safety of irreplaceable works and artefacts in highly valuable buildings.
Tim’s lecture targeted on a fireplace test protocol that was formulated to verify the efficiency and use of Tyco’s personal water mist solution, AquaMist, in an historical constructing, residence to valuable archive storage. The National Fire Protection Association (NFPA) 750 commonplace requires that, when employing a water mist suppression system, fire testing is undertaken pertinent to the chance. However, of the published fire check protocols listed in NFPA 750, none particulars the necessities for archives that comprise roller (compact) racking. Many of the racks within the focused building are of the ‘roller’ type, which restrict the quantity of area for constructing providers, together with those for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to incorporate test rig and format, check 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 occasion, the fire brigade). The related performance primarily based fireplace exams have been then designed to replicate the range of application parameters related to archive storage.
While ignition sources on the authentic site were recognized to be minimal, and the primary fire supply confirmed as arson, the multi-level constructing poses quite a few challenges that needed to be thought-about when formulating the fire test protocol to guarantee effective protection. Low ceilings and quite a few obstructions, such as lighting, ducts and pillars, contribute towards the confined setting of the archive storage basement degree. Items are saved in a combination of open racks and compact racks, which offer lower than a 150mm gap between themselves and the ceiling, and there could be restricted on-site water storage. Pre-test risk evaluation also highlighted restricted entry and exits below and above ground, so it’s important for space for storing to be maximised and safe egress provided in case of the event of a hearth. In addition, the highly priceless nature of the storage contents meant that the selected fireplace suppression answer had to make sure minimal injury to those historic gadgets.
To obtain Authentic , the checks needed to meet varied objectives. These comprised rapid control of the fireplace within a prescribed area (in this case, defined as within a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral injury through water clean-up. Become an insider needed to keep in mind varied parameters, including the specified excessive strain mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined based on a formulation based on the quantity of nozzles activating throughout testing.
The fire tests, carried out for both open and roller racks with minimal storage gaps, were undertaken in a customized test rig, designed, built and fitted to duplicate the exact specification, racking preparations and storage supplies of the site. Considered a high load, the gas materials were similar to that present in archive storage, including paper, books, micro-film and CD circumstances.
Success was defined by cross or fail standards and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge strain, discharge sequence, hearth spread, temperature, hearth damage and water consumption. In each checks, Tyco’s AquaMist system operated successfully and was noticed to suppress and management the hearth efficiently. The project group was impressed by the shortage of fire and smoke harm to the supplies and construction and the product has since been installed within the constructing in query.
“The IWMA convention is a unbelievable opportunity to highlight the advantages of water mist as a fire suppression solution, in addition to reveal its versatility in a variety of applications,” feedback Dr Tim Nichols. “Identifying a spot available within the market and taking the chance to formulate a fire check protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate safety of a customer’s highly priceless assets.”
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