LoginVol1: Twenty four papers from the tenth AIVC Conference, titles as follows: “Keynote Speech”; “Annex 14 - Condensation and Energy”; “Annex 18 - Demand Controlled Ventilating Systems”; “Trends in Airflow Design and
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
10th AIVC Conference - Progress and trends in air infiltration and ventilation research (Book of Proceedings) | 1989 | English
Ventilation, air flows in buildings and indoor air quality - R D & D and developments in Germany. | 1989 | English
Ventilation, infiltration, indoor air flows and air exchanges determine two aspects of fast growing interest: the energy balance of buildings and the indoor environment.
The paper describes the development in airflow simulations in rooms.
A comparison between the step-up, step down and pulse injection techniques for the measurements of the mean age of air. | 1989 | English
A comparison of three injection manners, step-up, step-down and pulse, for determination of the mean age of air was made by using nitrous oxide and sulphur hexafluoride as tracer gases.
Pressurization, or depressurization, of buildings is a tool to assess the airtightness of building envelopes. A common working pressure is 50 Pa, and the airtightness is expressed in terms of the number of air changes per hour at 50 Pa.
The indoor climate and ventilation were measured in 50 dwellings with various ventilation systems. The health and comfort of people living in the dwellings were studied with a simultaneous questionnaire.
In the "Stockholm Project", different blocks of multifamily buildings have been extensively monitored for about three years. Temperatures, airflows and electricity use have been registrated each hour.
It is particularly important to be aware of the air flow pattern in a building when determining indoor air quality problems or calculating space conditioning loads for energy consumption.
The AIVC nowadays is an established Centre on infiltration and ventilation research. It is well known throughout the world. This position has not been reached easily. But years of hard working and critical managing of the Centre were a necessity.
The COMIS workshop (Conjunction of Multizone Infiltration Specialists), using a multi-national team, is planning to develop a reliable, smooth running multizone infiltration model on a modular base.
The air flow within a room, the interchange of air between rooms and the interchange of air between a building and the exterior are topics which until today have received little attention by researchers.
The distribution of wind pressure on a building envelope is governed by the size and shape of the structure and the turbulence characteristics of the wind.
The air change rate in existing, older blocks of flats having natural ventilation has been measured by the tracer gas method. Measurements were made in the buildings in as-found condition.
This paper describes a set of experiments conducted in a three bedroom house in order to identify the leakage distribution of the building and the air flow rate through the on-purpose designed opening of the interior doors.
Whole-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.
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.
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.
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.
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.