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Study on Measurement Techniques of Air Change Rates in a House Using Video Images
Transactions of Visualization Society of Japan
Study on Measurement Techniques of Air Change Rates in a House Using Video Images Masaaki OHBA Air change rates in a house were measured from decay curves of video image signals assuming that pollutant gas could be completely diffused inside a house immediately after the emission of tracer gas. The experiments were conducted using both wind tunnel and actual house. From the wind tunnel experiments,it was found that if the wind speed of oncoming flow were less than 1 m/s,the results of airdoi:10.3154/jvs.16.1supplement_135 fatcat:6afmbjvrejh5rfpvqoorqj2xra