Protection systems burn control

Fire protection systems achieve control of burning by limiting the size of afire by ... 

Fire protection systems in buildings usually have many sensors, control units containing complex control logic and actuators. In most cases this complexity can be reduced to a simple control chain to demonstrate the interrelations (Burns 2001). 

Windsock to determine which way wind is blowing Automatic temperature controls to prevent overheating Pressure relief system to deal with excessive pressure Gauges and indicators to provide information about the state of the process Flares and scrubbers to burn off or neutralize released gas Positive pressure and filtered air in some units to protect employees Spare tank for runoff Emergency showers Eyewash fountain... 

R D efforts in halogen-fiee FRs are often aimed at designing a protective closed barrier on the burning polymer surface to reduce heat and mass transfer to the combustion zone. In some polymer applications this can be achieved by the use of intumescent systems. However, these are not always suitable in other apphcations for reasons of water uptake, thermal stability or actual FR performance. Therefore, it is of interest to the material developer to have options available to control the structure of the burning polymer surface layer. In this layer no cracks should appear which could allow for the escape of volatile, ignitable gases and so sustain the combustion process. 

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