The 12th AIVC Conference - Air movement and ventilation control within buildings, was held in Ottawa, Canada, 24-27 September 1991.

Contains 88 papers.  

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This paper presents a new approach to determine the interzonal airflows of a multizone system using tracer gas measurements.
Guitizad S, Jarausch H, Raatschen W
Both infiltration and exfiltration has a predominant influence on the space heating requirements in cold climates. Good predictive design methods are required to estimate the air leakage component in buildings.
Parekh A
A mathematical model has been developed which will facilitate the prediction of infiltration rates within multi-zone buildings.
Field A, Batty W, Probert S
Mechanical systems which use common ducts for combined heating and ventilating functions are becoming popular in the Pacific Northwest (U.S.).
Jackson M
Due to the limitations of computer storage and time the flow boundary conditions at an air inlet device have to be specified for numerical simulations of air flow patterns in rooms.
Ewert M, Renz U, Vogel N, Zeller M
The evaluation of a code can be done by investigating two items: solving the correct equations and solving equations correctly and eficiently. An indoor airflow code VentAirI has been developed and is evaluated here.
Li Y, Fuchs L, Holmberg S
The 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).
Cardinale N, Fracastoro G, Mantegna M, Nino E
Recent full scale experiments has detected the presence of low Reynolds number effects in the flow in a ventilated room.
Skovgaard M, Nielsen P
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.
Virtanen M
A new simple method is proposed here for the experimental singling out of the air flow patterns in a room.
Cannistraro G, Giaconia C, Rizzo G
The possibility of unacceptable internal air pollution levels can cause concern at the design stage given the potential for cross contamination between building exhausts and ventilation intakes is there.
Perera E, Tull R, White M, Walker R R
The present work is an investigation of ground heat exchangers for the air-conditioning of the supply air to residential buildings.
Trümper H, Albers K-J
We describe the use of constant injection and pulse injection techniques for measurement of airflow in a duct. Tracer-gas measurements were compared with measurements made using a pitot tube and a hot-wire anemometer.
Riffat S, Cheong K, Holmes M
A new handbook, describing in details the measurement techniques which could be used to better understand the infiltration and ventilation in buildings is presented.
Roulet C-A, Vandaele L
This paper evaluates the suitability of humidity-controlled house ventilation system to determine (i) the effectiveness of relative humidity as a sensing element, and (ii) the operating and performance characteristics of such ventilation strategy.
Parekh A, Riley M
This paper describes the guidelines prepared by NIST for GSA.
Persily A
The measurements reported in this paper were carried out in a mock up of an office room, ventilated by a commercial supply air terminal consisting of 84 nozzles (characteristic dimension SqRoot of As = 0.0975 m).
Sandberg M, Blomquist C, Mattson M
Kitchen hoods are frequently found in Belgian kitchens. Most of them have as only function intensive ventilation during certain cooking activities.
Wouters P, Geerinckx B, Vandaele L
Conventionally used thermal anemometers are able to measure velocity, but cannot determine direction.
Steimle F, Eser U, Schadlich S
This report describes tracer gas measurements of the local mean age of air at different locations within an office room.
White M, Walker R

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