Investigation of the Relationship Between Wall Thermal Conductivity and Inner Room Temperature in Compartment Fires

Abstract

In this study, the relations of the wall thermal conductivity and surface temperature in a compartment fire are investigated using Buckingham Pi theorem. The dimensionless parameters of the previous study are analyzed in order to correlate the dimensionless groups of the heat release rate, the thermal conductivity, the volume of compartment and the convective heat transfer coefficient. In addition the reduced scale of compartment, which has 1/6 size of ISO 9705 Room Corner Tester, is manufactured and the oxygen concentration and the maximum temperature in the space are measured for the gasoline pool fire (10 cm×10 cm, 15 cm×15 cm and 20 cm×20 cm). Finally, the criterion of the wall temperature increase are suggested in accordance with the thermal conductivity and the convective heat transfer coefficient. In addition, the dimensionless empirical equation using Buckingham Pi theorem considering the heat release rate are presented suggested. The results of this study will be useful especially for the fire phenomenon investigation of the wall thermal conductivity coefficient and shape in the compartment space.

Case Study Analysis of Database Construction for Smoke Control Simulation Experiments Using Scale Model

“…Prototype Model [3,5,6,8,[12][13][14][15][16][17][18][19][20][21][22][23][24][25] Simulation [24][25][26][27] Form of Architecture…”

“…For the tunnel-type model, experiments were conducted at a minimum ratio of 1:4 [27] and a maximum ratio of 1:40 [14]. In the case of the cuboid-type model, experiments were performed at a minimum ratio of 1:6 [15]. The most reduced experiment was performed for the atrium-type architecture with a ratio of 1:50 [16].…”