LoginIndoor and outdoor particle concentrations and ventilation rates were measured versus time ina large office building without tobacco smoking. Periodically, high efficiency filters replacedthe normal filters in air handling systems.
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
Particle concentrations in an air conditioned office building with normal and high efficiency filtration. | 1999 | English
The design of natural ventilation systems - the configuration and sizing of system components - assumes one of two generic forms: the nasty form based on thermal comfort criteria or the nice form based on specified airflow rates.
Air recirculation in the new office and laboratory building of the Norwegian Institute for AirResearch was discovered and characterised from a leaking sulphur hexafluoride cylinderstored in the garage.
Airborne fungi in indoor air has the possibility to cause the air pollution problems of the fungally infection syndrome and the allergy syndrome, etc. in residence environments.
The cabin air filter performance is of prime importance for the air quality in vehicles. New clean filters were tested but also filters loaded with actual traffic contaminants. Both laboratory and field measurements were included in the study.
A measurement of the thermal performance and air distribution of indoor sports ground using swirling flow type natural ventilation system. | 1999 | English
This report describe the thermal performance and air distribution of a Kumamoto prefecturalindoor sports ground in Japan.
The role of indoor plants as a source of microorganisms was studied in six office rooms.Concentrations of microorganisms (both fungi and actinomycetes) were determined fromindoor air and settled dust before the plants were placed in the office roo
Many HVAC systems built in the time between 1960 and 1980 have now reached the end oftheir lifetime and require retrofitting.
A field experiment on indoor consistency distribution of combustion gas by ventilation performance of range hood. | 1999 | English
In apartments of Korea, exhaust-only hood system is commonly installed for kitchen ventilation.
A number of studies have shown that approximately 1 in 10 hospital in-patients will acquire a nosocomial infection (NI) '*).These infections are associated with significant mortality rates, and have a large economic impact on health care systems.
This paper presents ozone removal efficiencies, measured over an extended period of time, inthree different settings: a test plenum, an air handler providing outdoor air to a Class 100cleanroom, and a plenum downstream of an air handler providing
The aim of this study is to illustrate the importance of the effects of wind turbulence on airchange in buildings.
Removal of VOC by photocatalytic degradation involving photochemical reaction with O3 under short-wavelength UV irradiation. | 1999 | English
Photocatalytic degradation of volatile organic compounds (VOC) with short-wavelength UVlight (254 nm) is an attractive technique in the view of perfect mineralization to CO2.
The need to separate impurities from air or other gases has increased as regards both the degree of separation and the necessity to separate finer particles.
Ventilation and indoor air quality in five Estonian residential buildings: a comparison with Scandinavian conditions. | 1999 | English
Measurements of ventilation rates and indoor climate parameters were carried out in fiveEstonian residential buildings.
The paper presents the results of the tests of two-zone airflow pattern forming in a room with displacement ventilation where various heat sources and various airflow rates were tested.
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.
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.
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.