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Table of contents
Chapter 1 Introduction
1.1 Context
1.1.1 Importance and necessity
1.1.2 Conventional thermal diagnosis metrology for solids on lab-scale
1.1.3 Challenges for thermal diagnosis on building walls in situ
1.2 Review on thermal diagnostic methodologies for building walls
1.2.1 Steady state heat transfer techniques
1.2.2 Transient heat transfer techniques
1.2.3 Application of infrared thermography (IRT) technique
1.2.4 Terahertz radiation method
1.3 Objective and outline
Chapter 2 Experimental sensors and facilities
2.1 Sensors
2.1.1 Infrared camera
2.1.2 Thermocouples
2.1.3 Heat flux sensors
2.2 Sensors calibration
2.2.1 Calibration of thermocouple
2.2.2 Calibration of heat flux sensors
2.3 Experiments in the laboratory
2.3.1 Experimental scheme and configuration
2.3.2 Facilities
2.4 Experiments in situ
Chapter 3 Measurements and data processing
3.1 Emissivity
3.1.1 Emissivity measurement
3.1.2 Fundamental and data processing
3.1.3 Emissivity results
3.2 Heat flux
3.2.1 Measurements
3.2.2 Data processing of heat flux
3.2.3 Heat flux results
3.3 Temperature measurement with IR camera
3.4 Thermography processing
3.4.1 Basic principles of SVD
3.4.2 Processing multi IR images by PCT
3.4.3 Image filter
Chapter 4 Estimation approaches for thermal parameters characterizing
4.1 Steady state heat transfer method
4.2 Thermal quadrupoles solution
4.2.1 Basics of thermal quadrupoles model
4.2.2 Simulations for several heating signals
4.2.3 Application to experiments
4.2.4 Approximated expressions
4.3 Pulse response curve method
4.3.1 Simulation analysis of pulse response curve
4.3.2 Deconvolution of experimental data
4.3.3 Experimental pulse response results
4.4 Step response curve method
4.4.1 Simulation analysis of step response curve
4.4.2 Experimental results of step response
4.5 Inverse method to estimate thermal parameters
4.5.1 Inverse method basics
4.5.2 Optimal results
4.6 Comparisons of the three thermal methods
Chapter 5 Terahertz radiation diagnostic method
5.1 Introduction
5.2 Experimental setup
5.3 Results and analysis
5.4 Discussion of combination
Chapter 6 Conclusion and perspectives
Bibliography
Appendix
Appendix A: Infrared camera, FLIR A325
Appendix B: Thermocouples fundamentals
Appendix C: Calibration results of thermocouples
Appendix D: Calibration of halogen lamps
Appendix E: ISO 18434-1:2008(E)
Appendix F: Temperature and heat flux results of the laboratory-case (T1 T2 q1 q2)
Appendix G: Temperature and heat flux results of in situ-case (T1 T2 q1 q2)
Appendix H: Absorbance and emissivity values of references
Appendix I: Usual Laplace transform
Appendix J: Matlab algorithm
