LoginDisplacement flow has been found to be the best flow principle for ventilation, with ventilating air being supplied to the occupied zone.
Bibliographic database Airbase
AIRBASE is the Bibliographic Database of the AIVC. It contains publications and abstracts of articles related to energy efficient ventilation. Where possible, sufficient detail is supplied in the bibliographic details for users to trace and order the material via their own libraries. Topics include: ventilation strategies, design and retrofit methods, calculation techniques, standards and regulations, measurement methods, indoor air quality and energy implications etc. Entries are based on articles and reports published in journals, internal publications and research reports, produced both by university departments and by building research institutions throughout the world. AIRBASE has grown and evolved over many years (1979 to present day, over 22000 references and 16000 documents available online). For most of the references, the full document is also available online.
The AIVC website includes a protected content feature that provides access to AIRBASE. Access to the protected content is free of charge but requires you to register first.
Some of the problems for designing ventilation systems for retrofitted buildings are presented. Measurements were taken in two public buildings in Helsinki with three ventilation systems of different types.
Describes a new ventilation strategy for retrofitted buildings. The system consists of two units including heat recovery, fan, filter, etc, which are installed in the window openings.
In new buildings, the requirements for indoor air quality and energy efficiency cannot be met with natural ventilation. In renovations of existing buildings it is, however, often difficult or uneconomic to install a mechanical system.
Evaluates results of the 'Ventilation in Residential Buildings' research programme of the German Federal Ministry for Research and Technology.
In order to determine ventilation performances in hot arid regions a transient program was simulated for a single room with glass windows. The calculations were done on climatic data of a typical city close to the central desert of Iran.
The use of heating and ventilation was measured in several flats to find the relationship between the two. Measurements were taken in 9 flats in a 6-storey block in Berlin, with various types of ventilation system.
The advantages and disadvantages of various ventilation systems have been assessed in Germany over the past four years. The programme covered research in unoccupied test rooms as well as in occupied buildings.
Discomfort due to stuffiness and adverse temperature gradients may occur in well insulated rooms with low levels of natural ventilation.
Discusses ventilation requirements to achieve acceptable air quality.
States that with improved thermal insulation, ventilation heat losses are becoming increasingly important for the total heat demand of a building, particularly multistorey buildings. Explains how the ventilation heat loss of individual rooms
Investigates the effects of five different ventilation strategies on the annual energy consumption for heating and warm water of residential (family) homes.
Covers maximum permissable levels of various substances, including tobacco smoke, asbestos and benzole, found indoors. The reduction of formaldehyde levels is given special attention.
Discusses guidelines produced for the Nordic Ventilation Group. Explains how the designer can select an effective ventilation system on the basis of information on ventilation rates and ventilation efficiency.
This booklet for consumers discusses what indoor air pollution is and how it can affect health. Ways of reducing pollutant levels are summarised
Describes a demonstration project to show that, in well sealed houses, trickle ventilators can provide an opening large enough to reduce condensation and odour problems, but small enough to avoid any significant increase in energy use.
Describes experiments to measure the ventilation rates of two small open-plan factories, one typical of current design and one designed to be more energy efficient, with increased levels of insulation and a tighter method of construction.
Describes laboratory tests to find correct operative conditions for a controlled outside air intake through the air space in the window to provide efficient ventilation without creating draughts.
Describes how multizone tracer gas analysis techniques can provide a complete description of office ventilation. Treats the concept of ventilation effectiveness to characterise internal air distribution.
Describe tests carried out in an 850-seat auditorium of 4000 m3 to compare the readings of a CO2 indicator for controlling the ventilation air flow with the readings from a Stafa odour indicator.