LoginThe authors show how the shape and surroundings of buildings and their situation in relation to prevailing winds affect the pressure distribution in a building.
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.
Summarises measurements of natural outdoor environmental radiation made in the Eastern United States, in New England and in Western Europe.
The problem of describing quantitatively the effective ventilation in a room when the air within the room is imperfectly mixed is discussed. It is suggested that the protection afforded by the ventilation to any given position against air
Models are defined for various mixing conditions, in continuous flow systems.
Negative pressure inside a building may create adverse or dangerous conditions. Discusses when make-up air is necessary, how need is determined, and how much make-up, with examples.
Discusses causes of condensation between the panes of a double window. Treats movement of water vapour by diffusion and by air leakage separately.
Gives method for calculating infiltration of a building due to wind and stack effect.
BSTRACT Describes test made to determine air flow through entrances to a multi-storey building.
Explains forces causing stack effect in multi-storey buildings and suggests ways of reducing air leakage. Mentions that stack effect makes the operation of doors difficult and interferes with the operation of dampers.
Part of an extensive research programme being carried out also in Denmark, Finland and Sweden. Describes 75 window tests and gives diagrams of air flow and rain penetration apparatus.
Describes method of measuring air flow in mines using nitrous oxide as a tracer gas. Examines two methods of measuring airflow, releasing a continuous stream of a gas and releasing a known quantity of gas.
Describes test rig used to measure air leakage through a metal framed window. Gives average of results of leakage for different air pressure. Finds leakage rate of 20 cu. ft/h/ft for air velocity of 30 m.p.h.
Reports tests of air leakage of windows, made in a wind tunnel. Six different windows were tested, five were of the same design with different manufacturers and materials;two steel, one wood, one aluminium and one cast iron.
Wind tunnel test conducted on a scale model of a classroom show that, provided the test air speed is kept in excess of about 3mph, it is feasible to use models for predicting, with good accuracy, the air-flow conditions in and around full-scale bu
Reports investigation of air infiltration in two residences using helium as a tracer gas. Describes the residences, instrumentation and test procedure. Gives results of decay rate of tracer gas and measured infiltration rates.
Examines dependence of measured infiltration rates on wind speed, indoor/ outdoor temperature difference and pressure difference. Gives results in form of graphs of measured values.
Gives formula for calculating air-change-rate from decay rate of a tracer gas. Discusses different tracer gases and detecting instruments. Describes portable meter used to measure the concentration of helium.