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      The relationship between vapour pressure excess and air change rates in bedrooms : a pilot study

      1 , 1 ,   1 , 2

      1st International Conference on Moisture in Buildings 2021 (ICMB21)

      28-29 June 2021

      vapour pressure excess, moisture excess, moisture supply, air exchange rate, ventilation, infiltration

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          Abstract

          Air change rates can be measured using tracer gas techniques which can be costly and intrusive. Moisture data is more accessible, and there is a relationship between moisture conditions and ventilation. This study aims to investigate the relationship between vapour pressure excess and air change rates in bedrooms. The CO2 decay method was used to estimate air change rates when bedrooms were unoccupied in the morning. The relationship between the average hourly change in vapour pressure excess and the air change rate was examined. Results showed a very weak to no correlation between the variables possibly due to moisture buffering and airflow from other rooms.

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          Author and article information

          Conference
          12 May 2021
          Affiliations
          [1 ] UCL IEDE
          [2 ] FourWalls
          Article
          10.14293/ICMB210004
          The Author(s)

          Published under Creative Commons Attribution 4.0 International ( CC BY 4.0). Users are allowed to share (copy and redistribute the material in any medium or format) and adapt (remix, transform, and build upon the material for any purpose, even commercially), as long as the authors and the publisher are explicitly identified and properly acknowledged as the original source.

          1st International Conference on Moisture in Buildings 2021
          ICMB21
          Online
          28-29 June 2021
          Product
          Product Information: ScienceOpen

          The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

          Engineering

          vapour pressure excess, moisture excess, moisture supply, air exchange rate, ventilation, infiltration

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