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- Comparison of energy performance of ventilation systems using passive vs. active heat recovery
- e of ventilation systems using passive vs. active heat recovery ====== Author: Dr Tomas Mikeska, Passiv... ses is a ventilation unit equipped with a passive heat recovery or energy recovery core (in the followin... equirement for certification of such systems is a heat recovery efficiency of 75% at a maximum electrici... re difference, the COP of such a system, i.e. the heat recovered divided by the electricity consumption,
- Types of ventilation @planning:building_services:ventilation:basics
- ventilation through leaks is not adequate in the heating period at all (see also [[Planning:Airtight co... tion. If this is sufficent on wind-free days, the heat losses\\ during strong winds will be intolerably ... e). For one thing, a correspondingly high output heat supply near the inlet will then be necessary and for another, the annual heating demand will be at least double that of a Passi
- Differentiation between Vv and Vn50 values
- ation system | Value of air volume that will be heated or cooled for calculating the n<sub>50</sub> le... s on PHPP, it serves to calculate the ventilation heat losses and is only relevant to determine the mini... t really influence the calculation of ventilation heat losses. {{:picopen:air_reference_volume_1.png?... ===== The air volume V<sub>n50</sub> within the heated building envelope is the volume that will be us
- Air volumes @planning:building_services:ventilation:basics
- on through windows** in Passive Houses during the heating period. Although this still occurs sometimes, ... ture for transporting the air and the ventilation heat losses). Low indoor air humidity is the primary l... umidification takes place), or whether the air is heated (e.g. by a heat recovery system) – the mass of the water content in the air flow does not change in a
- Passive House - 6 reasons why you still need opening windows
- far lower, and with the fan giving off additional heat, the cooling effect is reduced even more. The air... g warm or requiring significantly more energy for heating due to users keeping the windows open. There i... the only negative effect is a slight increase in heating energy (see [[operation:operation_and_experien
- The ventilation system – there is no alternative
- hy indoor air quality.\\ A ventilation unit with heat recovery is absolutely essential for meeting the