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
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.
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.
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.
The technique of tracer gas measurement has during recent years tended towards increasingly complicated measuring methods.
Indoor formaldyhyde levels in energy efficient homes with mechnical ventilation systems. | 1988 | English
Mechanical ventilation systems have been adopted in airtight energy- efficient houses in Canada to provide fresh air, remove moisture and indoor pollutants and provide a comfortable environment for the home-occupants.
The ventilation of a test room (LxWxH = 5.4x3.6x2.4 m) with a wall mounted heat source is investigated for two different air terminal devices.
Further studies of passive ventilation systems - assessment of design and performance criteria. | 1988 | English
Increases in building air tightness for purposes of energy saving have, unfortunately, also led to a significant increase in the number of instances of condensation damage, particularly in domestic properties.
Tracer gas techniques for measuring airflow rates in building systems are considered.
Air leakage through the building envelope is of great importance for the energy use of a building. However, from an indoor air quality standpoint, the size of interior leaks in e.g. multifamily buildings could be important as e.g.
Examinations about the air humidity in lived dwellings depending on different air ventilation systems using a new characteristic value. | 1988 | English
This work deals with problems of the air humidity in inhabited dwellings. A new approach is presented here which renders the definite diagnosis of humidity problems possible.
Traditionally air has been supplied from the ceiling to the occupants below opposing the buoyancy effects due to heat convected from people, lights and machines.
Ventilation produced by fluctuating pressure differences across a building appears to have received little attention . Such fluctuations are produced by gustiness of the wind or turbulence in the flow around a building.
This paper describes a two-dimensional numerical study, by finite-volume method of buoyancy-driven flow in a half-scale model of a stairwell.