LoginOne hundred subjects were exposed to air velocities fluctuating in the same manner as in typically ventilated spaces in practice.
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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In this paper a hypothesis is set up for explaining the discrepancies between the relatively high acceptable air velocities found during many earlier climate chamber tests, and the much lower acceptable velocities found under many practical circ
The physical reason for draughts is in the first place the convective surface-heat-transfer coefficient.
As part of an investigation into the influence of a residential weatherization program on indoor air quality and energy efficiency, a multi-pollutant survey of the air inside 50 Wisconsin homes was conducted three times during the heating season
A major pathway for loss of conditioned air in East Tennessee homes with externally located heating, ventilation, and air-conditioning (HVAC) systems is leakage in the ductwork. The average infiltration rate, as measured by Freon-12 trace
Long-term monitoring of radon, aerosol and carbon dioxide concentrations was carried out in two Finnish public buildings. In each case, a distinct periodic behaviour of pollutant concentrations was observed.
Under the provisions of the Law for Maintenance of Sanitation in Buildings, the "Building Sanitation Control Standards" came into force subsequently.
The theoretical and experimental study of heat losses and energy consumption and its influence on the air quality in buildings has been undertaken by the Silesian Technical University since 1980.
As part of a study to evaluate the effects of home weatherization on indoor air quality, a tracer gas method to determine infiltration rates was developed by modifying existing methods to meet several project constraints. A method was needed
An automated 10-point air sampling network which uses an electron capture detector gas chromatograph to continuously measure changes in sulfur hexafluoride tracer concentration in a residential environment will be described.
Three different types of methods for estimating ventilation rates in residences have been presented and the results of each method discussed. Field measurement experiences have helped to identify the potential errors of these methods.
An indoor air quality investigation of a 60,000 m2 8 storey government office building was carried out as a part of an in-depth study of the Total Building Performance of the building.
A tracer gas technique has been used for evaluation and characterization of air flow pattern of contaminants penetrating into buildings.
Indoor pollutant levels in well-insulated houses are being investigated in a 2-year theoretical and experimental study involving the simultaneous measurement of meteorological variables, air exchange and circulation, and energy consumption.
With recent advances in technology, choices among measurement strategies for indoor air quality investigations have become increasingly complex. Design must weigh objectives and available technology against resources to implement the design.
Chemical pollutants and ventilation rate have been measured in newly built energy efficient private dwellings. The samples were taken in the absence of normal human activity in the houses.
Indoor air quality and air infiltration were measured in 16 low-energy Californian houses.
Presents the results of air leakage tests on the windows of the Arts Tower at Sheffield University. The results quoted show the ranges into which infiltration coefficients fall.
Dynamic insulation is a means of reducing building heat losses to near zero without the use of massive thermal insulation.
Air tightness results for 40 New Zealand timber frame houses of varying age and construction detail are given. The steady pressure method was used at 6-9 indoor-outdoor pressure differences in the range 10-150 Pa.