LoginSummarizes 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.
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.
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.
With improved thermal protection of buildings proportion of ventilation heat loss has grown until it now accounts for 50% and more of total building heat losses.
Treats odour penetration from garages etc. into connected room, caused by wind pressure on windward side openings. Discusses measures to prevent overpressure e.g. by a leeward side grill oran exhausting ventilator.
Describes detailed study of infiltration rates measured with a tracer gas and air leakage rates obtained from fan pressurization in small, 3 - bedroom California house as part of a larger study.
Describes experiment to determine the effect of an evergreen windbreak on residential heat losses attributable to air infiltration.
Awareness has developed in the United States in the last five years that traces of radioactive radon gas and its daughter products are present in varying amounts in the indoor air.
Explains why house external shell and ventilation system must be treated as integral elements of a total system.
Describes use of SF6 in tracer gas studies to determine solvent fumes in indoor and outdoor environments and how meteorological conditions affect SO2 content of atmosphere. Lists instrumentation used.
Suggests that occupants need domestic competence to attain designed savings envisaged in project.
Describes operation of thermal imaging cameras with a display monitor detecting infra-red radiation.
Describes computer-based method of calculating heating or cooling capacity of a building, or energy consumed or natural temperature reached without air conditioning.
Explains method for calculating time dependences and average values of gas and particle concentrations in ventilated rooms, which permits determination of air pollution propagation in a room by means of given target functions.