LoginParticle deposition from turbulent duct flow is modelled and related to particle penetration of a ventilation system for a commercial office building.
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
Ventilation efficiencies of task/ambient conditioning systems with desk-mounted air supplies. | 1999 | English
In laboratory experiments, we investigated the ability of two task/ambient conditioningsystems with air supplied from desk-mounted air outlets to efficiently ventilate the breathingzone of heated manikins seated at desks.
In the beginning of 1998 the European project, AIRLESS, was started to develop strategies,principles and protocols to improve and control the petiormance of HVAC-systems and itscomponents for the incorporation in codes and guidelines.
Mathematical model of highly efficient air filtration process for nonwoven fabrics manufactured by paper-making method. | 1999 | English
The necessity to provide and maintain high cleanness of air in the rooms of the highestcleanliness classes requires a proper adaptation of selection and designing methods for airfilters.
The effectiveness of ventilation related to the two primary tasks of ventilation, (I) the supply of fresh air, and (ii) removal of contaminants, is investigated.
In order to evaluate the impact on indoor air quality of different installation and ventilation strategies, the modelling of indoor air pollutant transfer has been developed in the CLIM2000 software (thermal and airflow code).
Influence of natural convection on the thermal properties of insulating porous medium with air cavity. | 1999 | English
The influence of natural convection on the thermal properties of insulating porous medium with air cavity is studied.
Thermal and ventilation characteristics in a room with underfloor air-conditioning system. | 1999 | English
It is the objective of the present paper to investigate indoor environmental characteristics ofan office building with an underfloor air conditioning system.
This article briefly describes a research program undertaken by the National Institutes of Health Office of Research Services to investigate ventilation performance of different laboratory configurations, and their affect on the hood.
Influence of air flow patterns in a room on evaporation and humidity distribution around a heated wet cylinder. | 1999 | English
Air flow patterns in rooms can roughly be classified as one of three types: Displacement flow, source flow and mixed flow. Displacement flow in its original meaning is only used in special applications like clean rooms.
The pattern of airflow influences the propagation of airborne pollutants, the thermalenvironment and general comfort conditions.
The main objective of this study was to determine the ventilation demand for a gymnasium inthe primary school based on verified metabolic rate.Norwegian guidelines recommend 6.0met as the activity level to be used when calculating the outdoor air
The Paper deals with numerical computations, carried out, in order to predict the effects of natural convection on the thermal performance of porous material.
Prediction of air flow in a single-sized naturally ventilated test room using artificial neural networks. | 1999 | English
The objective of this research is to investigate thermal comfort and air flow distribution insidea test room which is naturally ventilated. The test room is ventilated through adjustablelouvers.
Surveys on repressurization-induced backdrafting and spillage were conducted in threedifferent areas of the United States using a common protocol, primarily to assess thecorrespondence between short-term tests and one week of continuous monitoring
The objectives of thisinvestigation were to examine the dynamic water vapour sorption offurnishing materials and to compare the experimental results withpredictions obtained from the Moisture Admittance Model.
Experimental and numerical investigation on temperature and air velocity distribution in a room equipped with split-system air conditioner. | 1999 | English
Split-system air conditioning is increasingly usedapplications, owing to its low cost and installationboth for residential and commercialease.
The air quality in a subway-train was studied to suggest optimal design criteria and operationconditions based on the ventilation demand by passengers. The C02 emitted from thepassengers was the tracer for this study.
Evaluation of temperature distributions and airflow patterns with three air diffusing systems in heating period. | 1999 | English
This study is to investigate the characteristics of indoor air temperature distributions and airflow patterns with three air diffusing systems in heating period and to find the methods which can predict those indoor environmental conditions effect
Comparison of mechanical and natural ventilation using long-term evaluation model for indoor air quality, thermal environment, and energy consumption. | 1999 | English
There are often tradeoffs among improving IAQ (Indoor Air Quality), maintaining thethermal comfort, and reducing energy consumption for HVAC (Heating, Ventilating, and Air-Conditioning) systems.