Experimental Research On Properties Of Fire Smoke Flow In Building And Modification Of The Application Software

The application software of calculation on properties of fire smoke flow in building is compiled successfully in theory by Luo Jialing.It is necessary to validate the software with experiment for application in practice.The author use part of a real building to set up the experiment model, in which five experiments have been finished, considering several main factors which influence the fire.Temperature, flux and chemical ingredient of the smoke have been measured.The comparison result between experiment and calculation proves the variation trend of the temperature of room and the flux of inlet is approximately consistent. The error is little.The influence of the density is analysed in this dissertation that is ignored in the software. The author modify the part of make-up air and ehxaust that is not perfect and make it successfully to compare the different plan of make-up air and ehxaust.The author analyse the vertical distribution and horizontal distribution of the smoke temeprature in the experiment and get some conclusions on properties of smoke flow.The dynamic display of room temperature,which reappear the whole process of temperature variation in the room, is made with Matlab language on the basis of experiment data. The smoke flow of the model is simulated and the dynamic simulation display the process of fire smoke flow vividly.