Verification and validation: establishing confidence in hygrothermal tools

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TypeTechnical Report
Series titleResearch Report (National Research Council Canada. Institute for Research in Construction); no. RR-278
Physical description21 p.
Subjecthygrothermal-molding, simulation, benchmarking; Hygrothermal properties
AbstractThe hygrothermal performance of building envelope systems is dictated by their responses to combined heat, air and moisture fluctuations produced by exterior and interior conditions. Research has focused on both laboratory experimentation and modeling of envelope systems by computer programs (hygrothermal tools). Experimental studies played a crucial role in the development of hygrothermal tools, and continue to offer useful information for their improvement. To be used with confidence, however, hygrothermal tools must be verified and, if possible, validated. To date, no comprehensive schemes for benchmarking hygrothermal tools exist as, for example, exist for energy simulation tools. Three comparisons are typically used to show the practical merits of simulation tools: inter-model, analytical, and empirical. This paper demonstrates how confidence in a 1-dimensional hygrothermal simulation tool can be built by such comparisons, and proposes them as the basis for a verification and validation methodology.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-20147
NPARC number20373943
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Record identifier474d480e-3057-47e4-baa1-e4664b5c1768
Record created2012-07-23
Record modified2017-07-05
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