Evaluation and development of innovative and energe efficient ventilation strategies.

A potential conflict may exist between energy saving and good indoor climate. The present project is phase 2 of a 5-year research programme consisting of four phases, the objective of which was to develop energy efficient ventilation strategies that will provide both healthy and comfortable indoor climate and reduced energy consumption when compared to present standard. Results of simulations from phase 1 and measurements from this phase 2 indicated that on average the basic ventilation in a typical apartment under normal use could be reduced by 20-30 percent without compromising the indoor climate.