::: Home    Recent Research    Technology Improvement Project on Certification for Field Performance of Smoke Control System of Building Fire  
Recent Research

Technology Improvement Project on Certification for Field Performance of Smoke Control System of Building Fire

Abstract


From the AS 4391 standard as part of the flue gas and tracer smoke as the definition

of tracer smoke (Figure 8) from the smoke tracer flue gas produced by the catheter

into the plume, the current domestic commonly used The cigarette maker heats the

tobacco smoke through a heater. The tobacco smoke has been approved by the Food

and Drug Administration (FDA) to be non-polluting, the pH value should be near

neutral, the color is white, and the residue is less, Smoke machine into the fire plume,

cigarette maker can only produce a fixed amount of smoke, such as the unit of time to

produce a specific smoke concentration (in visibility) of the amount of smoke, while

sending smoke machine smoke volume can be determined by the pressure of high

pressure CO2 Because of the standard does not regulate the visualization of the

amount of smoke, the amount of smoke based on the size of the fire source, heat

release rate, temperature, and the temperature of the smoke layer plume entrainment

air mass flow rate (kg / s), at The primary exit route was supplemented by the use of a

sunshade to measure the smoke shadowing effect due to the reduced light intensity of

the smoke (this value was used as a benchmark) as a quantitative assessment of the

flue gas flow. Or a multi-point aspirating smoke detector system to assist in

determining the invisible or obstructed build-up of smoke in buildings as a means of

determining smoke control effects.

This study will develop smoke emissions that can be traced over the duration of a fire,

control the amount of smoke output by a cigarette maker, replace tracing with a

specific amount of smoke, determine the screening criteria for a refuge or exit using a

sunshade, Smoke time history verification method.