AIVC Technical Reports

Energy Impact of Ventilation Only available for Subscribers 3.8 MB

Malcolm Orme
AIVC Technical Note 49, 1998, 43pp, Code TN 49

To quantify the energy impact of air change on total energy use, the AIVC has been conducting a study of current estimates for non-industrial buildings in thirteen major industrialised countries. This document explains how air infiltration and ventilation together account for a significant proportion of energy use in buildings. Air change energy use and its effect on carbon dioxide emissions due to use of fossil fuels are considered. The potential for reduced energy use by improved ventilation control is also reviewed.

Contents

1. Introduction

2. Background

2.1 Definitions of the Service and Residential Sectors
2.2 Definition of Air Change Energy
2.3 Air Change Energy in the Context of Building Energy Use
2.4 Fan Energy and Heat Recovery
2.5 The Influence of Occupancy

3. Methods Used to Calculate Air Change Energy

3.2 Total Delivered Energy for the Service and Residential Sectors
3.3 Estimates of Space Heating and Cooling Energy Use
3.4 Air Change Energy
3.4.1 Data Required for Estimates
3.4.2 Service Sector
3.4.3 Residential Sector
3.5 The Influence of Occupancy

4. Estimates of Energy Use

4.2 Normalised Data
4.3 Fan Energy Use
4.4 Humidification in Very Cold Climates

5. Estimates of Carbon Dioxide Emissions due to Air Change Energy Use

6. Uncertainties in the Estimates

7. Conclusions

References

Appendix A - Definition of Degree-Days

Appendix B - Summary Tables of Service Sector Characteristics


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