LoginPractical measurement has shown that gasoil and candle flames provide constant tracer gas sources. Suggests their use for meaSuring ventilation.
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.
The AIVC website includes a protected content feature that provides access to AIRBASE. Access to the protected content is free of charge but requires you to register first.
Refers to previous article treating application of theory of graphical representation in building services of calculating natural ventilation rates in buildings. Illustrates technique using examples of several buildings.
Reports of tests on wood windows and doors to determine their thermal performance with and without wind.
Reports measurements made on windows in old blocks of flats in Sweden. Measurements were taken of air-leakage through 21 windows under different air pressures before and after the renewal of draught excluders between window frame and casement.
Summarises data on air flow characteristics of walls from U.S.A. and Norway. Reports laboratory measurements on four test walls and identifies main sources of leakage for the different test facades.
Analyses the problem of air management in energy conserving passive solar houses and discusses cost effectiveness of various alternative scheme.
The airtightness of windows is an important feature in deciding habitability. in additional to the conventional, the window sashes featuring improved soundproofing and insulation performance have appeared.
Describes the original series of case studies made by Dick and his associates between 1949 and 1951. Reviews current activities, divided by building types and discusses the problems and needs of future work.
Reviews ideal characteristics of a tracer gas and gives literature review of the subject. Reports tests made on a house in California giving a direct intercomparison between common tracer gases used to measure air infiltration rates in buildings.
Discusses reasons for ventilating buildings and theories of ventilation. Summarises American and British recommendations for fresh air supplies.
Suggests the use of sound waves to locate openings in buildings that allow air infiltration. Reports results of an experimental program, including laboratory tests of a specially constructed partition and field tests on eight buildings.
Summarizes measurements made on a flat. These include inside to outside temperature and pressure differences, infiltration rates using helium as a tracer gas, duration of opening windows and doors and weather conditions.
Air infiltration measurement and reduction techniques on electrically heated homes. | 1979 | English
Reports two-year programme to evaluate the effect of air infiltration on the heating needs of 29 electrically heated homes.
Reports measurements of air change rates made in the tower of an eleven-storey building using sulphur hexafluoride as a tracer gas. Inside to outside pressure differences were also monitored as a function of temperature and wind speed.
Describes adaptation of photo-electrical optical technique to measure ventilation rates in wind tunnel models. Illustrates probe photographically and diagrammatically.
Considers the likely impact of alternative conservation measures on the incidence of surface and interstitial condensation on or within the elements of the building fabric.
Shows need for intermittent high ventilation in dwellings to remove water vapour and odours. Suggests openable windows as the simplest and most common method of ventilation control.
Describes research project which aimed to quantify the difference between actual dynamic ventilation rates and natural ventilation rates predicted using a steady state model.
Derives equations for the calculation of air-change-rate in a room where carbon dioxide is being produced at a known rate using the measured initial and final concentrations of CO2.
Treats development of generalised model of hourly air infiltration in residences. Describes its testing. Uses tracer gas measurements of infiltration in 9 research residences inColumbus, Ohio, under widely varying weather conditions.