LoginWhole-building pressurisation tests can quantify the air-leakiness of a building's external envelope. The resulting information can be used in assessing the quality of the building fabric.
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
VAV - air conditioning system makes it possible to control indoor conditions even when the heat loads are changing. But this is possible only when each part of the system works as it is intended to work.
A method is being developed for visualization of air flow with application to the indoor problems of heating, ventilating and air conditioning.
A comparison of different methods of calculating interzonal airflows by multiple tracer gas decay tests. | 1989 | English
Measurement methods based upon multiple tracer gas techniques have become an established branch of the study of air infiltration and interzonal air movements.
This paper gives an overview of air infiltration and ventilation developments and trends in Norway. The paper is divided into an infiltration part and aventilation part.
Displacement flow systems are becoming popular, especially in Scandinavia, for comfort ventilation.
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.
Public policy considerations and the development of a code for the control of radon in residences. | 1989 | English
Building codes that address radon control in residential buildings are a relatively new development in the larger trend toward increased efforts to understand and control indoor air quality.
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.
France is one of the European countries where ventilation has the most advanced regulation.
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.
A demand controlled air ductwork should be so dimensioned that the flow controllers have good flow and acoustical operation conditions.
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.
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.
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.
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 .