열중량 분석을 이용한 단열재의 표면 열분해 특성에 관한 연구

Abstract

Insulation materials are commonly used as building material for energy savings; however, they may pose a high fire risk because they ignite easily when exposed to heat sources. Insulation materials are considered as solid fuels in fire situations, which undergo a pyrolysis process before combustion. Therefore, the elucidation of insulation material pyrolysis is an important aspect of efforts to predict fire behavior in these materials. Thermogravimetric analysis (TGA) was conducted to investigate the pyrolysis characteristics of insulation materials. The results showed that both EPS Ⅰ and EPS Ⅱ occurred a one-mass loss reaction, while PUF exhibited two distinct mass loss reactions. Based on the pyrolysis temperatures obtained via TGA, the activation energies were determined through model-free methods. The compensation effect was applied to calculate the pre-exponential factors. Furthermore, the activation energies and pre-exponential factors obtained from kinetic analysis could be used as pyrolysis properties to numerically predict the pyrolysis reaction using the Fire Dynamics Simulator (FDS). Numerical simulations were conducted using the FDS pyrolysis model to examine the suitability of the pyrolysis properties.