Category: Hot Disk TPS
Author(s): Wasim Khaliq
Keywords: Composition, construction, Fire Protection, Fire Resistance, Hot Disk, Specific Heat, steel framed structure, stiffness, strength, Temperature, Thermal Conductivity, thermal expansion, thermal response properties, Transient plane source (TPS), Transient plane source (TPS) method, vanadium steel
Abstract: The high temperature fire resistance of vanadium is not well documented, so its properties are usually approximated to the same as conventional structural steels. The goal of this study is to determine the properties that influence the fire resistance of structural steel, thermal conductivity, specific heat and thermal elongation. Thermal conductivity and specific heat were both determined through the Hot Disk transient plane source (TPS) method with the TPS 2500. Vanadium and A36 steel were both tested in the temperature range 20-750°C. Both steels had the same negative trend for thermal conductivity up to 300°C, A36 decreased linearly from 300°C to 750°C, and vanadium decreased from 300-400°C, remained constant until 600°C, and decreased until 750°C. In both A36 and vanadium, specific heat remained constant until 400°C, but vanadium has a naturally higher specific heat. Vanadiums specific heat remains higher then A36 up to 700°C, A36 has a higher specific heat at 750°C.
Reference: Design, Fabrication and Economy of Metal Structures (2013) 377-382