LoginThe aim of this work was to develop a new calculation method of the zonal air velocity in ventilated room during the design stage. The verification showed a good correlation between the method and the experimental data.
Bibliographic database Airbase
AIRBASE is the Bibliographic Database of the AIVC. It contains publications and abstracts of articles related to energy efficient ventilation. Where possible, sufficient detail is supplied in the bibliographic details for users to trace and order the material via their own libraries. Topics include: ventilation strategies, design and retrofit methods, calculation techniques, standards and regulations, measurement methods, indoor air quality and energy implications etc. Entries are based on articles and reports published in journals, internal publications and research reports, produced both by university departments and by building research institutions throughout the world. AIRBASE has grown and evolved over many years (1979 to present day, over 22000 references and 16000 documents available online). For most of the references, the full document is also available online.
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The study used CFD to examine reactions between ozone and terpenes in a room under 4 conditions.
CFD is a suitable tool to calculate concentration in particle contaminant distribution in a room. 3 approaches are described for two types of flow problems and compared in this paper.
This paper presents a universal but simple mathematic model very useful to predict Volatile Organic Concentration in the bulk air for different conditions in residential buildings.
Using the model developed in part 1 of this paper, the influence of material kinds, ventilation and air-cleaning device on VOC concentration in room is studied.
In this study, an office with mixing ventilation is considered. The CFD analyses show that for high cooling loads it is useful to couple a cold ceiling to primary air system
This paper deals first with experimental measurement performed in a test chamber to investigate the characteristics of temperature and moisture distributions. The effect of moisture accumulation in building material is studied too.
In this paper, 2D - CFD calculations of the flow are carried out . Two different turbulence models were employed and the results compared.
Experioments has been conducted with a ice thermal storage and a ceiling plenum. This ductless air supply system can be an alternative to the use of chilled water tubes.
Measurements and CFD simulations are compared for 4 different ventilation systems using the air change index and a new ventilation parameter. It is shown the advantage of impinging jets
The paper presents the results of experimental tests : the enclosure size and background turbulence in the surroundings of the jet have an influence on the air velocity distribution in axisymmetric jets
The paper presents the results of the measurement of turbulence intensity in jets issued into enclosures of different size. The test results confirm the relation between the velocity distribution coefficient and turbulence parameters.
Experiments were carried out in a scaled test room equipped with 9 vortex inlets uniformly distributed, exhaust outlets near the floor and 64 mannequins to simulate cooling loads.
Disturbances from the surroundind environment and boundary conditions can influence very much the flow pattern , particles concentration and temperature distribution in a room.This report confirms the importance of working with measurements and si
This paper deals with low Reynolds number jets for personalised ventilation and the possibility to control them in order to obtain useful modifications of the flow field, it can be done by simply adding a ring-like perturbation in front of the je
This paper presents the behaviour of a thermal plume combine with a forced ventilation. A method to locate the position of the thermocline in a ventilated room is shown.
Measurements are made first in a full-scale room ventilated with a mixing ventilation, and later with a displacement ventilation. A new method to design mixing ventilation is established.
The experiment was conducted by means of a scaled-room wtih floor supply ventilation system, it intended to know the vertical distribution of contaminant concentration emitted from a human body.
This paper is a presentation of a theoretical and experimental analysis of supply air jet flow patterns in a mixing ventilation system. Investigation procedure aims at reducing draft risks.
The intention of the authors is to find a proper air conditionning system to achieve higher IAQ environment.They consider a new air-conditioning system that uses both a Partition-type Fan-Coil Units system (PFCUs) with a Dedicated Outdoor Air Sy