INNOVATIONS IN FIRE SUPPRESSION SYSTEMS

Innovations in fire suppression systems

Innovations In Fire Suppression Systems

Introduction

Water is most agreeable for  fire suppression  in large space when presentation and amount are taken into account. In this case, water type  fire suppression  apparatus have numerous benefits for example bigger defence locality and low  suppression  cost. Furthermore, it does not make toxic products. Sprinklers, as the most common  suppression  apparatus, have been broadly established for  fire  protection. However in latest years, with the expanding large space structures, the suitability of sprinkler use in such large space positions has been challenged.

Commonly, thermally triggered sprinklers are not apt for high ceiling space use. The size of the ceiling in large space will substantially sway the sprinklers in order that they will not supply productive protection. The major difficulty is the activation hold ups of the sprinklers in large spaces, especially high ceiling spaces. For demonstration, even a 5 MW  fire  on the atrium floor would not develop a fumes warmth high sufficient to cause the sprinklers on an atrium ceiling higher than 15 m [1 and 2]. Due to the expanse between the potential  fire  source and the sprinkler heads which are climbed on beside the ceiling, sprinkler activation may be too late to minimize the  fire  hazards or damage. Even the early  suppression  fast answer (ESFR) sprinklers have the suggested size limit [3, 4 and 5]. Moreover, the size may furthermore sway how much water can come to the blaze before vaporized or blown away by the  fire  plume [6]. In those large spaces where the combustible components are circulated dispersedly, it is furthermore not very effective to establish numerous sprinklers to cover all these materials.

Now, robotic  fire  monitor that can be mechanically controlled by computer and can work as a linkage apparatus in a  fire  detection and  suppression system  is evolving a more apt solution. Liu et al. and Yuan et al. have finished some early researches. Compared to a sprinkler, a  fire  monitor has numerous advantages. First, the most amazing benefit is that the activation time of these  fire  monitors is much shorter than sprinklers. They are triggered by the alert pointer granted by the  fire  detectors which are much more perceptive than the sprinklers' blast glass bulbs. These detectors can be conventional  fire  detectors or gas sensors. Second, water stream from a  fire  monitor has a higher pace, a larger flux and a bigger impulse so it is more productive for  fire suppression.  Its location type  suppression  may occasionally bypass the consequent deficiency initiated by sprinklers and will not origin a down high ground going of fumes [9] to threaten the inhabitants in the building. Last, a typical  fire  monitor has a firing variety of 50 m long, which endows it to defend much bigger locality than a sprinkler.

In this paper, a new  fire  searching and  suppression system  using such automatic  fire  monitors is described. These  fire  monitors are assembled into a larger  fire  detection- suppression system.  After  fire  confirmation and seeking method, the main ...