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’, the place he discussed how the extinguishant is well suited to the safety of irreplaceable works and artefacts in extremely valuable buildings.
Tim’s lecture focused on a fireplace take a look at protocol that was formulated to confirm the performance and use of Tyco’s own water mist solution, AquaMist, in an historical constructing, home to valuable archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when using a water mist suppression system, hearth testing is undertaken pertinent to the chance. However, of the published fireplace test protocols listed in NFPA 750, none particulars the requirements for archives that include roller (compact) racking. Many of the racks in the focused constructing are of the ‘roller’ kind, which restrict the quantity of space for constructing services, including these for extinguishing system pipework.
Together with the challenge stakeholders, Tyco devised the protocol to incorporate take a look at rig and layout, take a look at sort, hearth load, knowledge acquisition (for example, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and well being and safety procedures (for occasion, the fireplace brigade). The related efficiency based mostly hearth exams were then designed to copy the vary of utility parameters associated with archive storage.
While ignition sources at the authentic site were identified to be minimal, and the primary fire supply confirmed as arson, the multi-level building poses quite a few challenges that needed to be considered when formulating the fire take a look at protocol to guarantee efficient protection. Low ceilings and quite a few obstructions, corresponding to lighting, ducts and pillars, contribute in the path of the confined environment of the archive storage basement stage. Items are stored in a combination of open racks and compact racks, which supply less than a 150mm gap between themselves and the ceiling, and there’s restricted on-site water storage. Pre-test danger evaluation additionally highlighted restricted access and exits below and above floor, so it is essential for cupboard space to be maximised and safe egress offered in case of the occasion of a fireplace. In addition, the extremely valuable nature of the storage contents meant that the selected hearth suppression solution had to make sure minimal injury to those historic items.
To achieve New , the exams had to meet numerous objectives. These comprised rapid control of the hearth inside a prescribed area (in this case, outlined as within a block of racks); management of temperature; attenuation of radiation; and minimisation of collateral injury via water clean-up. They additionally needed to take into account varied parameters, together with the desired high pressure mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined based on a method based mostly on the amount of nozzles activating throughout testing.
The fireplace tests, carried out for both open and curler racks with minimum storage gaps, were undertaken in a customised check rig, designed, constructed and fitted to copy the exact specification, racking preparations and storage materials of the location. Considered a high load, the gasoline materials were identical to that found in archive storage, including paper, books, micro-film and CD cases.
Success was outlined by move or fail standards and determined by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge strain, discharge sequence, fire unfold, temperature, fire injury and water consumption. In each tests, Tyco’s AquaMist system operated successfully and was noticed to suppress and management the hearth efficiently. The project team was impressed by the dearth of fire and smoke injury to the supplies and construction and the product has since been installed within the building in query.
“The IWMA convention is a incredible alternative to focus on the advantages of water mist as a hearth suppression answer, in addition to show its versatility in a broad range of purposes,” feedback Dr Tim Nichols. “Identifying a spot out there and taking the chance to formulate a hearth take a look at protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate protection of a customer’s highly valuable assets.”
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