CONTENTS
Declaration iii
Acknowledgment iv
Abstract v
List of Figures
List of Abbreviations
1. Introduction 1
1.2. Scope 1
1.3. Problem Statement 2
1.4. Significance of Study 2
1.5. Background 3
1.5.1. Global context of Retrofit 3
1.5.2. Fenestration products scenario in the world 3
1.5.3. Glass market in India 4
1.5.4. Need for retrofit in Glass buildings 4
1.6. Research Question 6
1.7. Research Objectives 6
1.8. Research Gap 7
1.9. Scope and limitations 7
1.10. Why Chennai? 7
1.10.1. Glass building in Chennai 8
1.10.2 Climate of Chennai:
2. Literature Study 11
2.1. Fenestrations 12
2.1.1 Window Assembly 12
2.1.2 Heat transfer Basics through Window Assembly 12
2.2. Performance parameters of Glazing 13
2.2.1. U-factor (thermal Resistance)
2.2.2. Solar Heat Gain Coefficient (SHGC) & Shading Coefficient 14
2.2.3. Shading Coefficient 14
2.2.4. Visual Light Transmittance (VLT) 14
2.3. Types of Fenestration retrofits 15
2.3.1. Glazing system 15
2.3.2. Window films – Reflective & Tinted Films 15
2.3.3. Internal shading devices 16
2.3.4. External shading devices 19
3. Literature Review 21
3.1. Glazing up-gradation 22
3.2. Applied Films Integration 23
3.3. Shading device Integration 25
3.4. Integrated Fenestration components 27
3.5. Simulation Tools: 28
3.6. e-Quest as a simulating software. 28
3.7. Window 7.6 tool 29
3.8. Advanced Technologies in glazing system. 31
3.10. Summary of Literature Review: 31
4. Research Methodology 35
4.1. Overview of Methodology 36
4.2. Market Survey 36
4.2.1. Aim of Market Survey 37
4.2.2. Scope & Structure of Market Survey 38
4.2.4. Response on Retrofitting 38
4.2.5. Response on glazing system: 39
4.2.6. Vendor’s role 39
4.2.7. Glazing Properties 39
4.2.8. Response on Internal Blinds: 41
4.2.9. Response on External Blinds: 41
4.2.10. Chajjas or Overhangs: 41
4.2. 12. Summary of Market survey. 42
4.3. Shortlisting and Framing of Fenestration Integration 43
4.3.1. Shortlisting products 43
4.3.2. Glazing systems 43
4.3.3. Applied Films 46
4.3.4. Internal shades or Internal blinds 46
4.4. Integration Strategy 47
4.5. Performance indices Obtained from Window Tool 49
4.6. Baseline model for simulations 52
4.8. Simulation and Cooling Load calculation 57
5. Analysis and Results 61
5.1. Analysis Methodology 62
5.2 Performance & User based Analysis. 63
5.3 Single Glazing (SG) : 66
5.4. Single Glazing + Applied film (SG+FM) : 71
5.5. Single Glazing + Internal shade (SG + IS) : 71
5.6. Single Glazing + Applied film + Internal shade (SG + FM +IS) : 76
5.7. Single Glazing (SG + OH) 81
5.8. Single Glazing + Applied film (SG + FM +OH) 81
5.9. Single Glazing + Internal shades (SG + IS +OH) : 86
5.10. Single Glazing + Applied films + Internal shades (SG + FM +IS +OH) 87
5.11. Double Glazing ( DG ) 87
5.12. Double Glazing + Applied film ( DG +FM ) 90
5.13. Double Glazing + Internal Shade ( DG + IS ) 93
5.14. Double Glazing + Internal shade + Applied film ( DG +FM + IS ) 93
5.15. Double Glazing + Overhang ( DG + OH) 96
5.16. Double Glazing + Applied films ( DG + FM+ OH) 98
5.17. Double glazing + Shades (DG +IS +OH) 99
5.18. Double glazing + Shades (DG +FM+IS+OH) 102
6. Conclusion 106
6.1. Future Scope 107
6.2. References 107
7. Appendix 115
Appendix - I 116
Appendix - II 122
Appendix – III 122 Appendix –IV 130
Appendix – V 132
Appendix – VI 138
Appendix – VII 139
Appendix – VIII
Appendix – IX 140
Appendix - X 141
Appendix - XI 143
Appendix – XII 145
Appendix – XIII 147
Appendix – XIV 150
Appendix – XV 152
Appendix – XVI 156
Appendix – XVII 158
Appendix – XVIII 160