LoginThe paper presents an original computer code for the analysis of contaminant diffusion in rooms developed at the Politecnico di Torino and its experimental validation by means of a test facility located at the University of Basilicata (Potenza).
12th AIVC Conference - Ottawa, Canada - 24-27 September 1991
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
Theoretical and experimental analysis of different ventilation strategies in a test room. | 1991 | English
Numerical investigation of transient flow over a backward facing step using a low Reynolds number k-e model. | 1991 | English
Recent full scale experiments has detected the presence of low Reynolds number effects in the flow in a ventilated room.
Thermal coupling of leakage air flows and heating load in building components and buildings. | 1991 | English
Simulation models basing on 2-dimensional finite-difference approach were developed for the steady-state and dynamic analyses of the thermal coupling of leakage airflows and building components.
Using thermofoil heaters for the experimental determination of the air flow patterns in a room. | 1991 | English
A new simple method is proposed here for the experimental singling out of the air flow patterns in a room.
Numerical prediction of airflow patterns and ventilation effectiveness in an open office environment. | 1991 | English
Numerical modelling is performed to predict air movement, thermal comfort level and contamination distribution within an open office space.
Thermal plumes in ventilated rooms - vertical volume flux influenced by enclosing walls. | 1991 | English
The flow rate in thermal plumes are influenced by many factors. Influence by enclosing walls is one of them.
Sandberg and Skaret differentiate between the terms air change efficiency and ventilation effectiveness.
Influence of radiative participation of inside air on natural convection in a room. | 1991 | English
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 influence of radiative participation of inside air on natural convection in a room.
The airflow pattern and thermal comfort in a naturally ventilated classroom were predicted using CFD techniques.
As part of the AIVC's technical programme, study has been performed on present and advanced ventilation systems.
A commercially available humidity controlled natural ventilation system (Aereco) has been installed in the framework of a CEC demonstration project in 3 apartment buildings in France, the Netherlands and in Belgium.
This report describes tracer gas measurements of the local mean age of air at different locations within an office room.
A test programme has been designed to evaluate the performance characteristics of sensors for the automatic control of ventilation rates.
Simplified, physical models for calculating infiltration in a single zone, usually calculate the air flows from the natural driving forces separately and then combine them.
The work in this paper contributes to the work in the IEA - Annex 20 "Air Flow Patterns within Buildings" and presents a series of full-scale measurements of the concentration distribution in a room with isothermal mixing ventilation.
Modern one-family houses in Scandinavia are often ventilated by an exhaust fan. Most of the outdoor air probably enters through whatever cracks and openings there are and only a small part enters through the supply vents in many of these houses.
Tracergases provide a way to determine airflows in different situations. In some cases it is the only way to get quantitative information.
This paper illustrates the principles of demand controlled ventilation systems (DCV) as applied to office buildings.
The reliability of infiltration and air movement data obtained from single tracer gas measurements in large spaces. | 1991 | English
The methods available for the measurement of air infiltration and air movement in large industrial halls are restricted by the size of the building and the nature of the operations which take place within it.
A laboratory investigation has been made in a modern Swedish bathroom continuously ventilated by an exhaust fan. The tests consisted of measurements of the humidity, temperature and local mean-age after a standard shower.