Ventilation principles
WindowMaster is happy to help you choose the right ventilation principle
There are three basic forms of hybrid ventilation:
- Natural Ventilation + a VAV/CAV system.
- Natural Ventilation + a decentralised system.
- Natural Ventilation + extraction.
The type of hybrid ventilation used depends on project requirements. NV Comfort® and NV Advance® can regulate both natural ventilation and mechanical ventilation in all three forms of hybrid ventilation system.
Note that whatever type of hybrid ventilation you choose, the same thermal comfort and air quality requirements as hold for other ventilation solutions in other buildings must be met.
The illustration shows how a fan can be used to increase airflow. In this example, the cross-ventilation principle is utilised as long as the wind speed is sufficient to create airflow inside the building. The window on the side of the building that faces the wind is opened less than the window on the sheltered side.
Where there is insufficient airflow in the building the fan operates to increase airflow. Insufficient airflow may be due to:
- low wind speeds or outdoor temperatures being higher than indoor temperatures.
- the building structure preventing natural airflow.
