Temperature Calculation in Fire Safety Engineering

This book provides a consistent scientific background to engineering calculation methods applicable to analyses of materials reaction-to-fire, as well as fire resistance of structures. Several new and unique formulas and diagrams which facilitate calculations are presented. It focuses on problems involving high temperature conditions and, in particular, defines boundary conditions in a suitable way for calculations. A large portion of the book is devoted to boundary conditions and measurements of thermal exposure by radiation and convection. The concepts and theories of adiabatic surface temperature and measurements of temperature with plate thermometers are thoroughly explained. Also presented is a renewed method for modeling compartment fires, with the resulting simple and accurate prediction tools for both pre- and post-flashover fires. The final chapters deal with temperature calculations in steel, concrete and timber structures exposed to standard time-temperature fire curves. Useful temperature calculation tools are included, and several examples demonstrate how the finite element code TASEF can be used to calculate temperature in various configurations. Temperature Calculation in Fire Safety Engineering is intended for researchers, students, teachers, and consultants in fire safety engineering. It is also suitable for others interested in analyzing and understanding fire, fire dynamics, and temperature development. Review questions and exercises are provided for instructor use. Front Matter....Pages i-xiii Introduction....Pages 1-16 Steady-State Conduction....Pages 17-24 Unsteady-State Conduction....Pages 25-44 Boundary Conditions in Fire Protection Engineering....Pages 45-64 Heat Transfer by Radiation....Pages 65-87 Heat Transfer by Convection....Pages 89-105 Numerical Methods....Pages 107-124 Thermal Ignition Theory....Pages 125-132 Measurements of Temperature and Heat Flux....Pages 133-151 Post-Flashover Compartment Fires: One-Zone Models....Pages 153-174 Pre-flashover Compartment Fires: Two-Zone Models....Pages 175-183 Fire Exposure of Structures According to Standards....Pages 185-193 Temperature of Steel Structures....Pages 195-216 Temperatures of Concrete Structures....Pages 217-225 Temperature of Timber Structures....Pages 227-233 Back Matter....Pages 235-243