Development of needs driven ventilation for one-family houses

Further to ELforsk project 335-026, the project developed two control systems for demand-controlled ventilation of single-family houses – one simple system and one more sophisticated system. The preliminary results show that it would be most expedient to concentrate efforts on developing the simple system. This control system is estimated to save 25% on total energy consumption without causing any significant changes in air quality (CO2 concentration and relative humidity). However, practical implementation will require an amendment to the requirement of the Danish Building Regulation on constant air exchange. (Energy 10)