Energy efficient demand controlled ventilation in dwellings, phase 2: Development of ventilation strategies

The project forms phase two of a complete project in four phases. The aim of the complete project is to develop and investigate new ventilation strategies in which the constant basic ventilation is reduced and the ventilation can be individually increased according to actual needs in each dwelling and room so that a good indoor climate is achieved using least amount of energy. The complete project is a concerted effort, which could form basis for innovative ventilation solutions and new requirements in the coming building regualtions, BR 2005. Results of phase one, Evaluation of ventilation needs, shows that the basic ventilation on average can be reduced up to 25 percent compared to current building regulations without compromising comfort and indoor climate and without risk of damaging the building. The overall aim is to reduce energy consumption for ventilation in dwellings. In this phase two, Development of ventilation strategies, ventilation strategies aimed at realising the reduction will be analysed and developed. The most promising strategies will be tested full-scale in a laboratory apartment at KTH (Royal Institute of Technology) in Gävle, Sweden. The work will be concentrated on simple, user friendly and reliable methods built on the use of existing ventilation components