LoginThe traditional description of a flow system with a multicell model, Vc(t)=Qc(t)+p(t), may sometimes be to restrictive.
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.
Access to the publications is free of charge.
The equivalent leakage area algorithm is used to illustrate the use of statistical simulations to predict distributions of infiltration and energy loss for buildings.
This paper describes a laboratory model for the testing and validation of tracer gas measurement techniques.
Improvements to ventilation systems for the purpose of saving energy may also affect the provision of good air quality.
Multizone models are a common tool for calculating air and contaminant exchange within rooms of a building and between building and outside.
It has been shown that thermal imaging can give an indication of air flow rates through small cracks.
Preliminary work has indicated that thermography can be used to determine air leakage pathways from or to buildings.
A new model concept has been developed to model the three dimensional energy and mass transfer in an imperfectly mixed fluid.
Air infiltration continues to play a major role in the ventilation of houses, despite modern trends to increased airtightness of the building envelope. In colder climates, stack effect is the principal driving force for this natural air exchange.
The paper describes measurements made on large doors - 10 to 20 m2 in 2 buildings in Narvik. The air change was measured with the tracer gas (SFg). The method of constant concentration or decaying concentration of the tracer gas was used.
One of the options to increase the energy efficiency of buildings in the cooling season, is to extract heat from the building envelope during the night by natural or forced ventilation.
The LESO building is a three storey, medium-sized office building on the campus of the Swiss Institute of Technology in Lausanne.
In the mid-1980s, two London architects postulated that deflection of higher speed air from tall slab buildings could increase air infiltration from a neighbouring low-rise block, increasing its associated ventilation heat loss.