Experimental and Numerical Study of Temperature Distribution on Float Glass Along the Wall

Abstract

Present work represents the experimental and numerical study of temperature distribution over float glass under different fire conditions. A total of 9 experiments have been carried out, on fully exposed float glass of 300 × 300 × 4 mm³ pin supported along the wall with diesel line burner of 1020 × 150 mm² with continuous fuel supply to investigate the effect of thermal load and temperature distribution on glass. Pins were fully insulated from glass to avoid heat transfer between the two. Four K-type thermocouples were placed on the exposed surface while one was placed at the center of glass rear surface. Another three K-type thermocouples were mounted at 0.5 mm, 1 mm, and 1.5 mm from the wall surface, respectively, to measure the surrounding air temperature between the glass and fire source. Heat flux sensor was mounted at a parallel distance of 25 mm from the glass to register the incident heat per unit area upon the exposed surface. Parameters measured during the experiments were heat flux, temperature distribution over float glass, i.e., exposed surface temperature, rear surface temperature, air temperature between the glass and fire source. Maximum temperature difference between exposed and rear surface is noted at the time of glass breakage.