Tilluftsflöde

Tilluftsflöde refers to the volume of fresh air entering a space per unit of time. It is a critical factor in maintaining indoor air quality and ensuring a healthy and comfortable environment. Proper tilluftsflöde is essential for diluting indoor pollutants, such as carbon dioxide, volatile organic compounds (VOCs), and moisture, which can accumulate from human activities, building materials, and furnishings.

The required tilluftsflöde is typically determined by building codes and ventilation standards, which vary based on the type of building, its occupancy, and its intended use. For example, a classroom will have different tilluftsflöde requirements than an office or a residential dwelling. The flow rate is often measured in cubic meters per hour (m³/h) or cubic feet per minute (CFM).

Inadequate tilluftsflöde can lead to several problems, including stale air, unpleasant odors, increased risk of illness transmission, and discomfort for occupants. Conversely, excessively high tilluftsflöde can result in energy waste, as conditioned (heated or cooled) air is exhausted and replaced with unconditioned outdoor air. Therefore, balancing the need for fresh air with energy efficiency is a key consideration in HVAC system design.

Ventilation systems, such as mechanical ventilation with heat recovery (MVHR) or exhaust fans, are employed to control and manage tilluftsflöde. Natural ventilation, through open windows and doors, can also contribute to tilluftsflöde, but its effectiveness is dependent on external weather conditions. Monitoring and maintaining the correct tilluftsflöde is an ongoing aspect of building management to ensure optimal indoor environmental quality.