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Experimental
Study on Performance Evaluation of Ventilation Systems in a Test House
Hiroshi
Yoshino*, Joonghoon Lee* and Jun Wada**
* Department of Architecture, Urban Planning and Building Engineering,
Tohoku University
** Kajima Co.
Abstract
Ventilation
is one of the most important measures to dilute indoor air pollutants. In
order to maintain a clean indoor air environment, not only the total
ventilation rate of the building but also the distribution of outdoor air
to each area must be taken into consideration. A performance evaluation of
various ventilation systems, which have different air supply and exhaust
equipment, has been made. This investigation was undertaken over a heating
period, in a full-scale test house. The ventilation rate and distribution
to each room of the test house were measured by the constant concentration
method. The influence of indoor-outdoor temperature difference on
ventilation rate was also analysed. The measurement results revealed the
performance of these ventilation systems.
Key
Words: indoor air pollution, dilution, ventilation systems, performance
evaluation, ventilation rates, air flow distribution, tracer gas
measurements, constant concentration method, test houses.
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