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Evaluation of the Ventilation Rate via Four Different Measuring Methods

Yoshino Y. ,Yanagisawa Y., Kumagai K., Osawa H., Mitamura T.,Suzuki N., .Mihara K., Okuizumi Y., .Noguchi M., 2004
air flow | ventilation rate | house
Bibliographic info: RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 6, 5 Fig., 8 Ref.
Languages: English

In this study, the houses located in the northern region of Japan had been investigated. The investigation included the measurement of the ventilation rate using four different methods, namely the constant concentration method, measurement of airflow at inlet/outlet and two kinds of PFT method. This paper shows the relationship between the measurement results of ventilation rate via these four measurement methods. It is found that the amount of outdoor air introduced is insufficient for many houses and some of the used ventilation systems are not properly operated. The relationship between the measurement results of ventilation rate via the four different measurement methods is clearly made in this study.


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