LoginThis paper is a general survey of work done on natural ventilation of dwellings. Discusses ventilation of houses with both natural and mechanical ventilation. Reviews experimental investigations, quoting air-change-rates found.
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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Presents results of measurements of ventilation rate and window air leakage made in blocks of flats in Sweden. Describes measurement of ventilation rate using nitrous oxide as a tracer gas and pressurization tests on windows.
Outlines principles behind a program for calculating air flow in buildings. The generally accepted method for these calculations is Kirchoff's network equations, of which the "knot method" and the "loop method" are alternatives.
Briefly reviews methods of estimating infiltration rates in dwellings. Describes tracer gas method using methane. Gives results of measurements of air change rate made in houses in Minneapolis, Kansas and Denver.
Developes procedure for calculating air infiltration rates due to wind pressures on the exterior walls of buildings, assuming no chimney and mechanical ventilation effects. Assumes resistance to internal air flow is small.
Describes method of estimating roughness required to generate velocity profile of a given shape with a boundary layer of agiven depth.
Describes the importance and purpose of measurements of air infiltration. Discusses methods of measuring air-change-rate and the range of measurements.
States reasons for sealing joints:to increase sound insulation, protect from water penetration and to control air infiltration.
Reports measurements of the natural ventilation through a vertical sash-window in calm weather. Describes test window and room.
Compares annual fuel consumptions of seven large factories against calculated requirements to illustrate seasonal thermal efficiencies of 7.7 to 49.7%.
A review of literature reporting investigations of pollution in enclosed spaces.
Outlines causes of air infiltration. Discusses the air leakage paths of openings and measures that can be taken to reduce air leakage.
Reports wind tunnel tests of wind velocity, RMS velocity fluctuations and energy spectra for the streamwise velocity component in the lee of model fences of permeability 0% 20%, 34% and 50%.