Three-dimensional numerical analysis technique for interpreting monitored result of the exterior insulation basement systems (EIBS) experiment

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TypeTechnical Report
Series titleInternal Report, Institute for Research in Construction, National Research Council Canada; no. 814
Physical description76 p.
SubjectExterior insulation; Thermal resistance; Thermal performance; Heat transfer; Basement wall; 3-D model; Calculation; Analyses; Heat loss; Basements and foundations; Insulation finish systems
AbstractA consortium research project was initiated to determine the field performance of various thermal insulation products as applied in the exterior insulation basement system (EIBS). Initially a two-dimensional analytical tool was used to derive the thermal transmission characteristics from an array of temperature measurements monitored over a period of two years. Results immediately showed the influence of lateral heat flux between various products that differed in thermal transmission properties. Therefore, development of a three dimensional model became imperative, to resolve the order of magnitude of the lateral heat flux in the experimental set-up, and determine the actual in-situ properties of the insulation specimens. This report gives the theoretical and numerical approaches adopted to develop a three-dimensional computer model of heat transfer. The implicit Spline Method was selected for the problem solver. The applicability of the model was verified using measured data on temperature distributions at several material interfaces. Then the model was used to estimate the effect of lateral heat flows, and to determine the in-situ thermal properties of the insulation specimens. The report also records experimental details and presents validation results of the analytical approach.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number10095
NPARC number20386128
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Record identifier0270e70e-b26b-4579-bd8f-5a3ecd68e3ec
Record created2012-07-25
Record modified2016-09-29
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