There is a trend to perform more ventilation and air infiltration measurements in buildings, either to strengthen
commissioning procedures or to learn from field data. This trend is stronger in nearly zero‐energy buildings projects
or programmes given the significant share of ventilation and infiltration losses on total building energy use.
Although there seems to be a general consensus on the benefits of this approach—e.g., in terms of attention paid to
the execution, confidence in actual performance, monitoring of programmes and regulations—there are logically
debates about the quality and cost of these measurements.
The objectives of this workshop are to review and to discuss:

  • Recent and existing measurement methods for ventilation and air infiltration in buildings;
  • Methods to estimate the uncertainty of those measurements;
  • Conditions to obtain results whose quality is compatible with the purpose of the measurement;
  • Conditions for large‐scale implementation and pitfalls to avoid.

The workshop will address primarily field measurement of airflow rates, air exchange rates, air velocities, and
pressures. Discussions and presentations may also include laboratory measurements as well as methods for
measuring air temperature, air humidity, contaminants, energy use and power related to ventilation and infiltration
in buildings. The methods will address natural, hybrid or mechanical ventilation, including ventilative cooling.
Speakers will also give background information on readily‐available measurement techniques.

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The present paper addresses experiences with infiltration and ventilation in the Active House concept, based on the Active House Specification and realized Active Houses.
Peter Foldbjerg, Kurt Emil Eriksen, Karsten Duer, Lone Feifer
         
Wouter Borsboom, Ivo Opstelten, Piet Jacobs, Willem Koppen, Wim Kornaat, Marcel van Vliet, Niels Sijpheer
This paper describes the method, in which human observers assess indoor air quality.
Pawel Wargocki
In building design, energy performances are commonly predicted based on deterministic stationary or dynamic calculations.
Staf Roels, Liesje Van Gelder, Hans Janssen

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