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 extremely priceless buildings.
Scientifically proven centered on a hearth test protocol that was formulated to verify the efficiency and use of Tyco’s personal water mist resolution, AquaMist, in an historic building, house to treasured archive storage. The National Fire Protection Association (NFPA) 750 commonplace requires that, when employing a water mist suppression system, hearth testing is undertaken pertinent to the danger. However, of the printed hearth take a look at protocols listed in NFPA 750, none details the requirements for archives that contain curler (compact) racking. Many of the racks in the focused constructing are of the ‘roller’ kind, which limit the quantity of house for building providers, together with these for extinguishing system pipework.
Together with the venture stakeholders, Tyco devised the protocol to incorporate take a look at rig and structure, check kind, fire load, information acquisition (for example, sensors and imaging), hardware required (such as pumps, nozzles, pipe, tank, generator), and health and safety procedures (for occasion, the hearth brigade). The associated performance based hearth checks have been then designed to replicate the range of application parameters related to archive storage.
While ignition sources at the original website have been recognized to be minimal, and the main fireplace supply confirmed as arson, the multi-level building poses numerous challenges that had to be thought of when formulating the hearth take a look at protocol to guarantee efficient protection. Low ceilings and quite a few obstructions, similar to lighting, ducts and pillars, contribute in course of the confined surroundings of the archive storage basement degree. Items are stored in a combination of open racks and compact racks, which offer less than a 150mm hole between themselves and the ceiling, and there might be restricted on-site water storage. Pre-test threat evaluation additionally highlighted restricted entry and exits beneath and above floor, so it is essential for storage space to be maximised and secure egress provided in case of the event of a hearth. In addition, the extremely useful nature of the storage contents meant that the selected fireplace suppression resolution had to make sure minimal injury to these historical objects.
To achieve validation, the tests needed to meet various aims. These comprised speedy control of the fireplace inside a prescribed area (in this case, outlined as inside a block of racks); control of temperature; attenuation of radiation; and minimisation of collateral damage via water clean-up. They also needed to take into account numerous parameters, including the required excessive pressure mist system; a 30 minute run time; and an annual measurable achievement objective (AMAO) defined in accordance with a formulation based mostly on the amount of nozzles activating during testing.
The hearth checks, carried out for each open and curler racks with minimum storage gaps, were undertaken in a customized check rig, designed, constructed and fitted to duplicate the precise specification, racking preparations and storage materials of the positioning. Considered a high load, the gasoline supplies have been identical to that found in archive storage, including paper, books, micro-film and CD circumstances.
Success was defined by cross or fail criteria and decided by detailed quantitative measurements on system configuration, hydraulic evaluation, discharge pressure, discharge sequence, fire unfold, temperature, hearth damage and water consumption. In both tests, Tyco’s AquaMist system operated effectively and was noticed to suppress and control the fireplace effectively. The project staff was impressed by the dearth of fire and smoke damage to the materials and construction and the product has since been installed within the building in query.
Private is a fantastic opportunity to spotlight the advantages of water mist as a hearth suppression answer, in addition to demonstrate its versatility in a wide range of applications,” comments Dr Tim Nichols. “Identifying a gap in the market and taking the chance to formulate a fire test protocol for archive storage enabled us to validate the expert capabilities of our AquaMist system and facilitate safety of a customer’s highly valuable belongings.”
For more info, go to

Leave a Comment