Few detailed comparisons of modeled ad measured pollutant concentrations in multizonebuildings have been published.
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
Comparison of modelled and measured tracer gas concentrations in a multizone building. | 1999 | English
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.
Good thermal comfort in office buildings without air conditioning: the importance of a adaptive model of thermal comfort. | 1999 | English
A secondary analysis of the Dutch prevalence study by Zweers et al shows that office buildingswithout artificial cooling and with operable windows have a lower risk for health symptoms andcomfort complaints than office buildings with artificial co
A hygrothermal model for predicting house dust mite response to environmental conditions in dwellings. | 1999 | English
House-dust mite antigens are a major contributor to allergic sensitisation. Since temperatureand humidity are crucial to house-dust mite physiology, there is considerable interest inreducing mite populations by controlling the indoor environment.
Evaluation of domestic ventilation system performance by COMIS model for Japanese conditions. | 1999 | English
The purpose of this paper is to evaluate the performance of four kinds of ventilation systems from the point of view of air exchange, indoor air pollution, and space heating load under Japanese conditions by numerical simulation.
Individual thermal comfort control with desk-mounted task / ambient conditioning (TAC) systems. | 1999 | English
Three very different task/ambient conditioning (TAC) systems were investigated in a climate chamber.
A methodology to assess the IAQ performances of ventilation systems in residential buildings. | 1999 | English
Until now, there is no widely accepted way to express any index for this purpose and takinginto account the large variety of possible pollutants.
Numerical study on air-conditioned indoor airflow by dynamic large eddy simulation. | 1999 | English
The aim of this research is to apply dynamic Large Eddy Simulation (LES) to predicting the complex turbulent flow field in an air-conditioned room.
Recent years have brought the popularity of methods in which neutral networks are applied. They seem of particular importance while dealing with diagnosing, predicting and estimating.
Combined control of natural and forced ventilation using intelligent control algorithms. | 1999 | English
Results are presented from a study of the performance of fuzzy, rule-based algorithms for thecontrol of indoor air quality through combined control of natural and forced ventilationstrategies, whilst simultaneously meeting thermal and visual comfo