Electricity efficient ventilation in dwellings

This project aims to reduce the energy consumption for mechanical ventilation in new and existing multi-storey buildings. Its objective is to demonstrate and document that the consumption of electricity and heat for ventilation of dwellings can be reduced compared with the present practise by continuously regulating the air flow in accordance with actual ventilation needs. Another objective is the wider use of more energy efficient ventilation systems in dwellings. The project may result in changes to the Danish Building Regulations and contribute to achieving the aim of ’Energi 21’ for new buildings.

The project is carried out in cooperation with the housing associations KAB and AKB and the company Exhausto A/S. Cooperation with Exhausto A/S is to lead to the development of a new system solution for demand-controlled ventilation for dwellings. Humidity of the room air will be the parameter for the demand control. In consultation with the housing associations KAB and AKB, a number of dwellings will be selected for experiments and a number as reference dwellings, where the system solutions will be implemented. The results of the project will be published as a SBi publication.