LoginThis paper presents an exploratory study on flow pattern selection in unmixed flows, resulting in aset of rules that are used to decide between flow regime during and before a simulation.
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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We present in this paper an advanced formulation of zonal models for calculating room airtemperature and airflow distributions. It is based on a new way of sub-dividing the room usings the Octree method.
This paper reports the results of room model experiments and Computational Fluid Dynamics(CFD) analysis of ozone distribution in indoor air.
The selection and design of air conditioning systems in Hungary are based on a determined modelling state. In the last decade this was a safe enough basis for the management of systems.
An energy simulation program, ESP-r, was used for simulation of the energy requirements and indoor climate in a well-insulated terraced house in Sweden.
Airflow characteristics in the air-conditioned spaces play an important role to obtain the comfortable and hygienic conditions.
Zoning room air conditioning strategy is based on the idea of controlling the conditions of one zone by supply air and, at the same time, utilizing the stratification of temperature and contaminants in another zone.
This paper presents an analytical model for predicting the air flow and velocity in an open vertical air channel due to natural convection.
The techniques available for the simulation of the complex geometries common in air diffusers are quite different from the ones optimized for a complete room simulation.
This study examines the way of utilizing a ceiling fan for airflow control in a large air-conditionedroom.
The air movement in the occupied zone of a room ventilated by displacement ventilation exists as a stratified flow along the floor. This flow can be radial or plane according to the number of wall-mounted diffusers and the room geometry.
The paper describes the design of a fire and a smoke source for scale-model experiments with smoke ventilation.
A Lagrangian-Eulerian model for the dispersion of solid particles in a three-dimensional, incompressible, laminar or turbulent flow is reported, tested and partly validated.
The contribution deals with the research on temperature fields in rooms heated in differentways at heating-up as well as in steady state conditions.
The mean velocity in rooms predicted by CFD simulations based on RANS equations differs from the mean (in time) magnitude of the velocity, i.e. the mean speed, in rooms measured by low velocity thermal anemometers with omnidirectional sensor.
The accumulation of heat, contaminant and water vapour into the upper part of rooms is utilized in stratification and zoning room air conditioning strategies.
Fläkt Woods, which manufactures a wide range of ventilation equipment, has undertaken a programme of experimental verification of the concepts of new displacement ventilation equipment, as well as validation of a CFD (Computational Fluid Dynamics)
This paper introduces a simple method for a natural ventilation strategic design and the evaluation of ventilation effectiveness.
As particles in room air can cause lung diseases, it is important to study how they are transported and dispersed in buildings. This investigation numerically studied particle dispersion by using the Lagrangian approach.
Double-skin façades (DSF) are widely used as an architectural solution to both control the thermal behaviour and allow for the possibility of using natural ventilation techniques on buildings.