LoginTwenty three papers from the ninth AIVC Conference, titles as follows: Keynote speech: Air Infiltration and Ventilation; Natural airflows between roof, subfloor and living spaces; Experimental analysis of air diffusion in large space; Determinatio
9th AIVC Conference - Gent, Belgium - 12-15 September 1988
The 9th AIVC Conference - Effective ventilation, was held in Gent, Belgium, 12-15 September 1988.
Contains 44 papers.
Volume content
Application of mathematical modelling to the evaluation of building ventilation systems. | 1988 | English
Numerical modelling is performed for three-dimensional turbulent buoyant flows emerging from an air diffuser in an air-conditioned, ventilated room.
Experimental investigations concerning energy savings achieved in buildings with passive solar components (e.g. large south-front windows, sunspaces or Trombe walls) have already been effected under test conditions.
Air quality and draught avoidance are fairly important to office staff; consequently, the occupant's perspective should be taken into account when assessing the relative merits of different methods of ventilation in office buildings.
General background to the conference.
The National Institute of Standards and Technology (formerly the National Bureau of Standards) has through an interagency agreement with the Public Building Service of the General Services Administration performed an evaluation of the thermal and
The ventilation and leakage characteristics of suspended floors are not well documented.
Extended testing of a multi-family building using constant concentration and PFT methods. | 1988 | English
More than two months of detailed test data have been gathered using modified constant concentration tracer gas techniques for a six-storey, 60 apartment, multi-family building.
In this paper a short term testing methodology is developed to evaluate the performance of ventilation systems with respect to control of indoor air pollutants.
Recirculation of air in dwellings. Differences in concentration between rooms in dwellings due to the ventilation system. | 1988 | English
The Dutch Standard NEN 1087 "Ventilation of dwellings": Requirements (1) is at this moment under review. A requirement can be found about the quality of air. In fact a statement is made that outside air is required as fresh air for bedrooms.
This paper presents an analysis of indoor climate in buildings with forced air heating systems. The results is based on indoor climate measurements and extensive interviews with the occupants.
This paper deals with field experience of airborne moisture transfer problems in houses. Two types of phenomena are discussed in more detail; the infiltration of moist air from crawl spaces and the propagation of moist air produced in kitchens.
In displacement ventilation systems, air flow rates, temperature and the design of the air supply device strongly influence the parameters which decide the thermal comfort.
The specific value of different flows resulting from air exchanges between rooms or with the outside is not always important. An extensive model is not suitable when only estimations or tendencies have to be drawn (very time consuming).
The paper describes measuring results of the air movement from three different types of diffusers for displacement ventilation. Two of the diffusers are lowlevel wall mounted diffusers, one with a low and one with a high initial entrainment.
This paper reviews research activities undertaken in the framework of IEA Annex XIV, "Energy and Condensation". It outlines the objectives and working scheme.
Outdoor air pollution can have a bearing on the effectiveness of indoor air and the quality of ventilation. There is a pressing need to reflect on the potential type and effect of occurrences (e.g.
An element-assembly formulation of multi-zone contaminant dispersal analysis theory is described.
This paper tries to give a reasonable description of the state of the art of the Belgian building stock with regard to ventilation.
The use of a guarded zone pressurization technique to measure air flow permeabilities of a multizone building. | 1988 | English
In the past few years, research efforts have been made to acquire accurate knowledge about infiltration and ventilation in multi-zone buildings.