The 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.
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.
A suggested standard methodology for the assessment of the performance of domestic ventilation systems. | 1994 | English
The monitoring of the performance of domestic ventilation systems is quite a complex exercise.
One important aim for the development of new air conditioning systems is the reduction of the total energy consumption.
The ventilation of a Swedish single family house is investigated by means of tracer gas and pressurization techniques.
Predicted and measured air change rates in houses with predictions of occupant IAQ comfort. | 1994 | English
The purpose of this study was to test an Indoor Air Quality model on a variety of Canadian homes, and use this model to determine the optimal ventilation levels necessary to provide appropriate comfort levels.
A study has been undertaken to (1) evaluate airtightness in recent construction dwellings in New York State, (2) evaluate the effectiveness of various strategies in providing adequate ventilation, and (3) study the use of various ventilation optio
This paper presents a measurement technique to perform quantitative visualization of room air flows.
Occupant satisfaction and ventilation strategy - a case study of 20 public buildings. | 1994 | English
Occupant response in a good indicator of the effectiveness of a ventilation system. In a one-year study in the province of Quebec region, 20 public buildings were studied.
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.