LoginDisplacement flow systems are becoming popular, especially in Scandinavia, for comfort ventilation.
10th AIVC Conference - Espoo, Finland - 25-28 September 1989
The 10th AIVC Conference - Progress and trends in air infiltration and ventilation research, was held in Espoo, Finland, 25-28 September 1989.
Contains 52 papers.
Volume content
Buoyancy-driven air flow in a closed half scale stairwell model: velocity and temperature measurements. | 1989 | English
This paper describes an experimental study of the buoyancy-driven flow and the associated energy transfer within a closed, halfscale stairwell model.
France is one of the European countries where ventilation has the most advanced regulation.
Coupled air flow and heat conduction model for mechanically ventilated foundations. | 1989 | English
Rising moisture from the ground has caused quite a lot of damage on foundations of Swedish buildings. It is in some constructions possible to prevent this by mechanical ventilation below the floor or below the concrete slab.
Development of a microprocessor-controlled tracer gas system and measurement of ventilation in a scale model. | 1989 | English
This paper describes the development of a microprocessor-controlled tracer gas system which is capable of collecting a large number of tracer gas samples at short or long intervals.
A demand controlled air ductwork should be so dimensioned that the flow controllers have good flow and acoustical operation conditions.
Canadian research into residential ventilation and combustion venting revealed that the installed performance of exhaust equipment, ducting passages, and site-built chimneys was largely unknown.
Comparison of air infiltration rate and air leakage tests under reductive sealing for an industrial building. | 1989 | English
The paper compares air infiltration rate measurements with air leakage measurements in a modem industrial building.
This paper explores the results of air infiltration and ventilation research carried out in Canada over the last decade and specifically examines its application to low-rise residential buildings.
Wind and pressure requirements for the validation of a multizone air air infiltration program. | 1989 | English
In order to be validated, the computer programs simulating the air flows in multizone buildings need several measured data sets to be compared with. Such a set was measured on the LESO, a mid-sized administrative building.
1979 a project was launched at Technological Institute, Copenhagen with the purpose of developing a method for continuous measurement of air change rates in occupied dwellings.
New design of central units in air heating systems for heating and ventilation in domestic buildings. | 1989 | English
In central units of air heating systems the supply air flow must meet the actual heating demand. Most of central units for air heating systems have only one fan , which is designed for the maximum air flow at the maximum heating capacity .
The air exfiltration part of ventilation is often difficult to determine and its part of the energy balance is therefore usually determined as a remainder or given a constant value.
This paper presents a new technique for supply of outdoor air directly through external walls into a dwelling room without any draught problems.
Multizone flow analysis and zone selection using a new pulsed tracer gas technique. | 1989 | English
This paper presents and evaluates a new method, based upon tracer gas techniques, for determining interzonal airflows and effective volumes in a multizone enclosure.
This paper examines some designs which lead to indoor air pollution and exhorts mandatory maintenance of all building services which determine the health and safety of the building occupants as anintegral part of our city bylaws.
A tracer gas technique for determining volumes and air flow rates in multi-cell systems with a single tracer gas is considered.
The climatical conditions in Sweden are such that it has almost always been necessary to tighten the houses quite thoroughly in order to avoid cold-draught and to make as good use of the heating as possible.
During the past decade a multitude of diagnostic procedures associated with the evaluation of air infiltration and air leakage sites have been developed.
A modern concept for office buildings: energy saving and good indoor climate are no longer contradictory. | 1989 | English
An up-to-date design concept for office buildings results in a very low energy consumption and provides a better indoor climate at the same time.