Firefighting with Water Motor – Driven Foam Pump System

Tyco Fire Protection Products showcased its experience 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 utilizing Water Mist’, the place he discussed how the extinguishant is nicely suited to the safety of irreplaceable works and artefacts in extremely valuable buildings.
Tim’s lecture focused on a fire check protocol that was formulated to verify the performance and use of Tyco’s own water mist answer, AquaMist, in an historical constructing, home to valuable archive storage. The National Fire Protection Association (NFPA) 750 standard requires that, when employing a water mist suppression system, fireplace testing is undertaken pertinent to the risk. However, of the printed hearth take a look at protocols listed in NFPA 750, none particulars the necessities 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 house for building services, including those for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to include test rig and format, test sort, fireplace load, information acquisition (for instance, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and well being and security procedures (for instance, the fireplace brigade). The associated efficiency based mostly fire exams were then designed to replicate the range of utility parameters associated with archive storage.
While ignition sources at the unique web site had been recognized to be minimal, and the main fire supply confirmed as arson, the multi-level building poses quite a few challenges that needed to be considered when formulating the fire test protocol to ensure effective protection. เกจวัดแรงดันน้ำดิจิตอล and quite a few obstructions, similar to lighting, ducts and pillars, contribute in path of the confined environment of the archive storage basement degree. Items are saved in a mixture of open racks and compact racks, which offer lower than a 150mm gap between themselves and the ceiling, and there could be limited on-site water storage. Pre-test risk analysis additionally highlighted restricted entry and exits below and above ground, so it’s important for space for storing to be maximised and protected egress supplied in case of the occasion of a fire. In addition, the highly valuable nature of the storage contents meant that the selected fire suppression solution had to make sure minimal harm to these historical gadgets.
To obtain validation, the exams needed to meet various goals. These comprised speedy management of the fireplace within a prescribed space (in this case, defined as inside a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral damage by way of water clean-up. They also needed to keep in mind numerous parameters, together with the desired excessive stress mist system; a 30 minute run time; and an annual measurable achievement goal (AMAO) outlined based on a formula based on the amount of nozzles activating during testing.
The fireplace tests, carried out for both open and roller racks with minimal storage gaps, have been undertaken in a personalized take a look at rig, designed, constructed and fitted to replicate the precise specification, racking arrangements and storage supplies of the positioning. Considered a excessive load, the fuel supplies have been equivalent to that found in archive storage, together with paper, books, micro-film and CD instances.
Success was defined by cross or fail criteria and decided by detailed quantitative measurements on system configuration, hydraulic analysis, discharge stress, discharge sequence, fireplace unfold, temperature, hearth harm and water consumption. In both exams, Tyco’s AquaMist system operated effectively and was noticed to suppress and management the hearth effectively. The project group was impressed by the dearth of fireplace and smoke damage to the supplies and construction and the product has since been put in in the constructing in question.
“The IWMA convention is a unbelievable opportunity to spotlight the benefits of water mist as a fireplace suppression answer, as nicely as reveal its versatility in a variety of applications,” comments Dr Tim Nichols. “Identifying a niche in the market and taking the opportunity to formulate a fire take a look at protocol for archive storage enabled us to validate the professional capabilities of our AquaMist system and facilitate safety of a customer’s highly valuable property.”

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