LoginInternationally, there are many different requirements and regulations for ventilation. Sometimes the variation is more than a factor of five. There are strong drivers to reduce energy consumption for HVAC, and therefore the spread in requirements and regulations is worthwhile to study. To reduce ventilation flows, it is necessary to understand the reasons behind them. Demand control to reduce these flows is growing in many countries, but the control parameters are quite different, for instance humidity versus CO2 control. If the reasons for ventilation are not understood, it is difficult to decide when and to what level ventilation flows can be reduced.
The goal of this project was to:
- Collect information about the rationale behind ventilation requirements in different countries
- Analyse these data, differences, and similarities
- Categorise them (i.e. climate conditions)
- Provide recommendations based on the latest research findings