LoginThe book of proceedings from the 15th AIVC Conference "The Role of Ventilation", Buxton, UK, 27-30 September 1994.
Volume 1 includes 28 papers & 9 posters
Volume 2 includes 37 posters & 4 papers
15th AIVC Conference - Buxton, UK - 27-30 September 1994
The 15th AIVC Conference - The Role of Ventilation, was held in Buxton, UK, 27-30 September 1994.
Contains 75 papers.
Volume content
Workers in 'white collar' jobs continue to complain about air-quality' problems.
Building airtightness data are essential for design and model evaluation. An attempt has been made with the Numerical Database to compile data appropriate toinfiltration and ventilation studies.
An experimental and theoretical investigation of airflow through large horizontal openings. | 1994 | English
The work was concerned with measuring natural convection through a large horizontal opening of different sizes and shapes located between two rooms in a building.
As a result of the "Sick Building Syndrome" (SBS) the confidence of operators of office buildings into HVAC technologies has suffered a considerable drop.
In many design cases, energy as well as occupant comfort are the relevant criteria which are studied using computer simulation programs. Comfort evaluations cover air quality, thermal, visual and acoustical comfort.
A series of laboratory experiments are described which investigated the effect of surface roughness on the air flow characteristics of simple, straight-through, no-bend cracks with smooth and rough internal surfaces.
Determination of k-factors of HVAC system components using measurements and CFD modelling. | 1994 | English
Indoor air quality, comfort and energy use in buildings are largely dependent on the performance of HVAC systems. However, the pressure loss factors available to the designer show large discrepancies depending on the source of the data.
The Air Lock Floor and the Pressure Ring are two effective measures for control of air flow directions between rooms or zones in buildings. They create a pressure hierarchy that controls spread of pollutants.
This paper discusses four concepts that have been found useful in improving estimates of ventilation rates in residential buildings. These concepts are improved methods for describing leakage distribution and wind pressures: 1.
This paper reports on ventilation measurements taken beneath a suspended timber floor of a BRE/DoE energy and environment test house.
The idea that intend temperatures can be reduced by ventilating the air-space between the ceiling and the roof (the attic) of a house, is widely acknowledged by Civil Engineers and Architects.
This paper investigates possible natural ventilation strategies to reduce exposure to environmental tobacco smoke (ETS) in dwellings.
Residential ventilation has at least two energy penalties that must be considered when addressing the ventilation levels recommended in ASHRAE Standard 62. Energy is required to heat the fresh outside air used for ventilation.
This paper presents a trial of applying a CFD package into an air movement study in an old English church.
Measurements of interzone airflow and movement of aerosol particles were carried out in an environmental chamber. SF tracer gas and oil-smoke particles were used for this work.
Tracer-gas techniques are widely used for measurement of airflow in buildings and their accuracy depends critically on the uniformity of tracerlair mixing.
The main goals for this design tool are: - A powerful, but simple to use, technical and economic tool for selecting a ventilation plant. - Guide and control the consultants in accordance with the owner's economic preferences.
Simulation is proving more and more important in building physics. Programs of different levels of complexity are today available for researchers and designers to model and plan buildings.
This paper is concerned with measurement of air and aerosol particle exchange efficiency in a single zone chamber. Aerosol particles and tracer gases were injected into the chamber and their concentrations were monitored as a funtion of time.