Improvements in natural air supply concerning thermal winter comfort, IAQ and energy consumption

The paper presents the effect on thermal conditions, heat consumption and the perception of thermal comfort and indoor air quality (IAQ) of different types of trickle ventilators (pressure controlled at 2 Pa pressure difference or 10 Pa with(out) back draft valve and with(out) demand controlled mechanical extract in all rooms), since these are key factors in the evaluation of the ventilators. All of these aspects are investigated by means of simulations (CFD parametric analysis and Contam) and measurements in a climatic chamber (cold box - hot box) in order to develop a trickle ventilator with improved performance.

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