Temperature Calculation in Fire Safety Engineering

1. Front Matter

   Pages i-xiii

   PDF

2. Introduction

   • Ulf Wickström

   Pages 1-16

3. Steady-State Conduction

   • Ulf Wickström

   Pages 17-24

4. Unsteady-State Conduction

   • Ulf Wickström

   Pages 25-44

5. Boundary Conditions in Fire Protection Engineering

   • Ulf Wickström

   Pages 45-64

6. Heat Transfer by Radiation

   • Ulf Wickström

   Pages 65-87

7. Heat Transfer by Convection

   • Ulf Wickström

   Pages 89-105

8. Numerical Methods

   • Ulf Wickström

   Pages 107-124

9. Thermal Ignition Theory

   • Ulf Wickström

   Pages 125-132

10. Measurements of Temperature and Heat Flux

    • Ulf Wickström

    Pages 133-151

11. Post-Flashover Compartment Fires: One-Zone Models

    • Ulf Wickström

    Pages 153-174

12. Pre-flashover Compartment Fires: Two-Zone Models

    • Ulf Wickström

    Pages 175-183

13. Fire Exposure of Structures According to Standards

    • Ulf Wickström

    Pages 185-193

14. Temperature of Steel Structures

    • Ulf Wickström

    Pages 195-216

15. Temperatures of Concrete Structures

    • Ulf Wickström

    Pages 217-225

16. Temperature of Timber Structures

    • Ulf Wickström

    Pages 227-233

17. Back Matter

    Pages 235-243

    PDF

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.

• Fire resistance
• Fire protection engineering
• Fire technology
• Fire transfer
• Heat transfer
• Temperature calculation
• Heat flux
• Radiation heat transfer
• Convection heat transfer
• Fire exposure
• Plate thermometer
• Adiabatic surface temperature
• Fire curves
• Finite elements
• Latent heat
• Compartment fire modelling
• Steel structures
• Concrete structures

“The book is quite effective in content, style, and format, which is suitable for institutions that offer programs in fire engineering. … The strength of the book lies in the flow of concepts and the culmination with review questions for each chapter, which provide quintessential pointers to key concepts and mastery of the material. Summing Up: Recommended. Upper-division undergraduates and above; faculty and professionals.” (R. N. Laoulache, Choice, Vol. 54 (6), February, 2017)

• Luleå University of Technology, Luleå, Sweden

  Ulf Wickström

Ulf Wickström is a professor at the Luleå University of Technology, Luleå, Sweden. He was the director of the fire research laboratory of SP Technical Research Institute of Sweden between 1986 and 2010. Professor Wickström has a PhD in fire technology from the Lund University of Technology and a master of science from the University of California, Berkeley, USA. He has for several years been active in international fire safety standardization where he has introduced many concepts based on his research such as the plate thermometer for measuring temperature and radiation, parametric fire curves of compartment fires, and shadow effects for calculating steel temperatures. He is also the originator of the notation adiabatic surface temperature which is now being used increasingly by modellers to express fire exposure. He developed the well-known computer code TASEF for calculating temperature in fire exposed materials, composites and structures.

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