Table of Contents
1. Introduction 1
2. Research question 2
3. Hypothesis 2
4. Research Objective 2
5. Background 2
6. Outcome of the study 3
7. Literature Review 4
7.1. Different methods to determine ventilation rates 4
7.2. Airtightness measurement in other countries 5
7.3. Airtightness reporting and calculations 7
7.4. Standards for ventilation and airtightness measurement 7
7.5. Data analysis 7
8. Research Methodology 9
8.1. Blower door system selection 9
8.2. Description of The Energy Conservatory(TEC) Blower door equipment 10
8.3. Recruitment and site access 11
8.4. Safety and Health 12
8.5. Field measurement procedure 12
8.6. Data sorting and analysis 13
8.7. Calculation to find effective leakage area and normalized leakage area and comparison of the metrics with other countries 13
8.8. Statistical comparison of Normalized Leakage bungalow and apartment houses 13
9. Results & Discussion 14
9.1. Bungalow and apartment description 14
9.2. Air Tightness Results 17
9.3. Discussion on Pressurization & Depressurization test 17
9.4. Calculations of Effective Leakage area(ELA) and Normalized leakage area (NL) 19
10. Analysis 20
10.1. Difference in Air flow rates at 50 Pa(Q50) for pressurization and de-pressurization test 20
10.2. Comparison of air leakage between measured Bungalows and Apartments of Ahmedabad 21
10.3. Normalised leakage area(NL) and Equivalent Leakage(ELA) area 22
10.4. Comparison of measured building air leakage with International standards 23
10.5. Comparison of air tightness between measured buildings of Ahmedabad and other countries 24
11. Conclusion 25
12. Further use of Blower door data 26
Appendix-A 29
Appendix-B 34
Appendix - C 33
Appendix – D 34