6533b831fe1ef96bd1298367

RESEARCH PRODUCT

Vapour condensation and moisture accumulation in porous building wall

Jerzy WyrwałAndrzej Marynowicz

subject

Environmental EngineeringMaterials scienceAnalytical expressionsMoistureGeography Planning and DevelopmentCondensationBuilding and ConstructionComposite materialPorosityMaterial propertiesWater contentPhysics::Atmospheric and Oceanic PhysicsCivil and Structural Engineering

description

Simultaneous one-dimensional heat and vapour transfer with condensation in a porous wall is analytically investigated. Spatially steady-state distribution of accumulated moisture, less than the critical content, is described. Closed-form analytical expressions for the temperature, condensation rate and moisture content are obtained. The presented model requires material properties which are relatively simple and easy to determine. The results of the paper are illustrated with an example of multilayer building wall under climatic conditions.

https://doi.org/10.1016/s0360-1323(00)00097-4