Benchmarking of hygrothermal model against measurements of drying of full-scale wall assemblies

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ConferenceICBEST 2010 - International Conference on Building Envelope Systems and Technologies: 27 June 2010, Vancouver, B.C.
Pages369377; # of pages: 9
SubjectHygrothermal modeling, hygIRC-C, heat, air and moisture (HAM) transport, drying of wall systems; Walls
AbstractThis paper describes the benchmarking exercise for the present hygrothermal model called ?hygIRC-C? against the hygIRC-2D model that was previously developed at NRC-IRC and test results of laboratory measurements of drying of four full-scale wall assemblies. The wall assemblies were representative of the North American wood frame construction. These walls were subjected to different exterior and interior conditions and varying initial moisture content of OSB sheathing board components. The present hygrothermal model was recently developed at NRC-IRC. This model solves the highly nonlinear and coupled Heat, Air and Moisture (HAM) transport equations. The results showed that the overall agreements between the present model and the hygIRC-2D model as well as the experimental measurements were reasonably good in terms of the shapes of the drying and drying rate curves. Additionally, the predicted average moisture content of the different wall assemblies over the test periods were in good agreement, all being within +5% of those measured.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number53573
NPARC number20374768
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Record identifier29b7c90e-8f66-4712-8c02-48d5c28c668a
Record created2012-07-23
Record modified2016-05-09
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