The 12th AIVC Conference - Air movement and ventilation control within buildings, was held in Ottawa, Canada, 24-27 September 1991.
Contains 88 papers.
Volume content
Vol1: Twenty eight papers from the twelventh AIVC Conference, titles as follows: “The Message of Annex 20: Air Flow Patterns within Buildings”; “Evaluation…
Numerical modeling is performed to predict airflow patterns, thermal comfort, and ventilation air distribution within an open office space. This…
The basis of this study are experimental results obtained on a real scale cell in controlled climatic conditions which are used to show the potential…
A mathematical model has been developed which will facilitate the prediction of infiltration rates within multi-zone buildings. The aim was to cater for: (i…
A set of diagrams for estimating flow coefficients and exponents in the power law flow equation for cracks are presented. The diagrams are primarily…
The airflow pattern and thermal comfort in a naturally ventilated classroom were predicted using CFD techniques. The CFD model for turbulent flow consists…
A new simple method is proposed here for the experimental singling out of the air flow patterns in a room. It is based on the use of a series of thermofoil…
Results of 3-D computational fluid dynamic simulations of the air flows, temperature distribution and contaminant remove efficiencies for typical…
Application of hot wirelfilm ariemometry in room air flows presents difficulties because: (1) the effect of natural convection due to the heated wire…
This paper extends the integral mass balance approach to the remaining constant concentration technique. An integral formulation of the constant…
Numerical modelling is performed to predict air movement, thermal comfort level and contamination distribution within an open office space. The office…
The paper presents an original computer code for the analysis of contaminant diffusion in rooms developed at the Politecnico di Torino and its experimental…
This paper presents a new approach to determine the interzonal airflows of a multizone system using tracer gas measurements. In contrast to methods proposed…
Modern inlet devices applied in the field of ventilation of rooms are getting more complex in terms of geometry in order to fulfil the demand for thermal…
Reverberant sound excitation and the sound intensity technique have been used for the measurement of the sound transmission loss of narrow slits in rigid…
Sandberg and Skaret differentiate between the terms air change efficiency and ventilation effectiveness. Air change efficiency is a measure of how…
Recent full scale experiments has detected the presence of low Reynolds number effects in the flow in a ventilated room. This means that one are unable to…
Mechanical systems which use common ducts for combined heating and ventilating functions are becoming popular in the Pacific Northwest (U.S.). These systems…
Combined ventilation and heating systems in floors demand extensive investigations about the heat transfer before they could be installed in residential…
The paper discusses methods to set boundary conditions at the air supply opening in predictions of room air flows with computational fluid dynamics. The…