Table of Contents
1. Introduction 1
1.1 Background 1
1.2 Significance of the study 1
1.3 Purpose statement 2
1.4 Research questions 2
1.5 Research objectives 2
1.6 Limitations of the study 2
2. Literature review 2
2.1 Energy savings from daylighting 3
2.2 Daylight metrics used in past studies 3
2.3 Methods for daylight performance investigation 4
2.4 Standards, codes and guidelines for daylight compliance 5
2.5 Survey Daylight strategies typically for large scale single storey buildings 6
2.6 Summary 7
3. Project Methodology 8
3.1 Data collection and field measurements 8
3.1.1 Understanding the design intent of the workshop 8
3.1.2 Literature Review 8
3.1.3 Photo documentation 8
3.1.4 Field measurements 8
3.1.5 Long-term monitoring: 9
3.2 3-D modelling and calibration 9
3.2.1 3-D Modelling, Daylight simulation and its comparison with field measurements 9
3.2.2 Calibrating the model: 9
3.2.3 Calibration Process 9
3.3 Performance Evaluation 11
3.3.1 Annual Simulation 11
3.3.2 Shading Analysis 11
3.3.3 Lighting energy analysis: 11
3.3.4 Glare Analysis 12
3.4 Parametric Analysis 12
4. Analysis and Results 13
4.1 Field measurements 13
4.1.1 Readings for PIT results, 4th March, 11:30-1 PM 13 viii
4.1.2 Observations from surface reflectance measurements 13
4.2 Model calibration 13
4.2.1 Outside Illuminance-Results 13
4.2.2 Inside Illuminance 14
4.2.3 Results for measured and simulated grid after calibration 15
4.3 Results of Performance Evaluation 17
4.3.1 Model making and wood studio 17
4.3.2 Clay studio 17
4.3.3 Summary 17
4.5 Annual performance with calibrated model 18
4.5.1 Results for Spatial Daylight Autonomy 18
4.5.2 Results for Annual Sun Exposure. 18
4.5.3 Results for Useful daylight illuminance 18
4.5.4 Results in section 19
4.6 Estimation of lighting energy savings 20
4.6.1 Observations from long-term monitoring data 20
4.6.2 Lighting energy savings results 20
4.7 Glare Analysis 21
4.7.1 Results 21
4.7.2 Analysis in detail for Point-2 in wood workshop 22
4.8 Parametric Analysis 24
4.8.1 Building orientation 24
4.8.2 Visible Transmittance 25
4.8.3 Surface reflectance 26
4.8.4 Exterior roof reflectance- 27
4.8.5 WIindow to Floor Area ratio - 27
4.9 Summary of results in the study- 28
5. Conclusion 30
References 1
Appendices 4
Appendix A 4
Appendix-B: Building details, measurement details and material list 6
Appendix-C: daylight simulation and modelling details 22
Appendix D:Results and analysis 29
Appendix-E: Rounds of measurement 48