System for verifying evacuation of smoke and heat produced in fires in closed spaces, comprises mixture of different strength of low density gas such as helium, and tracer gas to simulate various types of fires

摘要

The system comprises mixture of different strength of low density gas such as helium, and a tracer gas to simulate various types of fires. A device is provided to supply and regulate the gas mixture. The system has a mixing chamber, in which the gases come from cylinders. The system is connected with a computer, which regulates the valve and entry of gases in mixing chamber through cylinders, and sensors are provide to determine the density and concentration of gases.