LoginDuring the last decade, an increasing interest in Underfloor Air-Conditioning (UFAC) systems has emerged. This is due mainly to an increased demand from employees for a greater control over their working environment.
20th AIVC and Indoor Air 99 Conference - Edinburgh, Scotland - 9-13 September 1999
The 20th AIVC and Indoor Air 99 Conference, Ventilation and indoor air quality in buildings, was held in Edinburgh , Scotland, 9-13 August 1999.
Contains 141 papers
Volume content
A study on the characteristics of indoor environment and comfort in office building with underfloor air-conditioning (UFAC) system. | 1999 | English
Within an International Energy Agency (IEA) project (Annex 27) experts from 8 countries(Canada, France, Italy, Japan, The Netherlands, Sweden, UK, and USA) have developed toolsfor evaluating domestic ventilation systems during the heating season.
Prediction of the indoor air quality trend in a dwelling in the Mediterranean climate. | 1999 | English
The purpose of this study was to evaluate the indoor air quality parameters in a residentialdwelling using information from the field.
Evaluation of the effects of ventilation systems on temperature, humidity, air quality and energy consumption in multiple dwellings. | 1999 | English
Recently well-insulated and well-airtightened houses are increasing in Japan. Those houses havesome problems of air quality because of formaldehyde from construction materials. Ventilationsystems have possibility to solve these problems.
Performance evaluation of a displacement ventilation system for improving indoor air quality: a numerical study. | 1999 | English
To evaluate the performance of a ventilation system, the local mean age of air has usually been used to estimate how efficiently fresh air is diffused to a desired location.
In this paper, analysis of the ventilation requirements of enclosed vehicular parking facilities is discussed. First, a compilation of existing U.S.
Application of statistical experimental design for parametric simulation studies in building physics, with an emphasis on indoor air. | 1999 | English
Parametric studies have often been used for sensitivity analyses in the field of the pharmaceuticaland agricultural sector.
Based on concerns about indoor air quality and trends towards tighter envelope construction,there has been increasing interest in mechanical ventilation of residential buildings in the UnitedStates.
Comparison of modelled and measured tracer gas concentrations in a multizone building. | 1999 | English
Few detailed comparisons of modeled ad measured pollutant concentrations in multizonebuildings have been published.
The influence of air supply and exhaust locations on ventilation efficiency and contaminant exposures in rooms. | 1999 | English
An efficient ventilation system is characterised by a well-organised and turbulence-controlled airstream that rapidly corrects disturbances in air quality and thermal comfort in the ventilated space.Air supply and exhaust conditions are investigat
Scale model experiments give possibilities for analyses of the design conceptions of ventilation especially of air distribution in large enclosures.
The ventilation engineer's plan at the design stage could be influenced by many factors. It may also be different from the requirements for the final users of the spaces.
New thermodynamic energy "water potential" based on the chemical potential of a component of mixture gases is defined as the driving force of gaseous phase water flux.
Influence of ventilation systems on aerosol and vapour concentration in the kitchen. | 1999 | English
During the experiments and under the experimental conditions, displacement ventilation with air outlets close to floor level were found to produce the lowest concentrations of hazardous substances and aerosols in the working areas of kitchen appli
In this paper, a zonal model used to predict the air movement, temperature distribution and airquality in a room is presented.
Computational analysis of indoor air and temperature distribution in an office space. | 1999 | English
There is a growing demand for buildings to have a high indoor air quality environment. Twoof the main elements that contribute to this quality are temperature and air distribution withinthe occupied space.
An efficient numerical method for solving the Reynolds-Averaged Navier-Stokes (RANS)equations with turbulence models for complex geometry and high Reynolds number flows isused to perform a highly-resolved computation of the turbulent flow in a str
The study was to test five units used in single house mechanical ventilation systems with heat recovery.
Temperature and relative humidity have been measured in a BRE test house to investigate the vapour content in the void beneath the timber floor. The void can be ventilated naturally or by means of a fan supplying or extracting air.
Comparison between indoor environment measured with thermal manikin and computational fluid dynamics calculation. | 1999 | English
With increasing demand for acceptable indoor environment it is necessary, already in theconstruction phase, to estimate what effect different environmental factors have on theoccupants.