Definition Of Two-dimensional Condensation Via BEM
Author(s)
N. Simões, F. Branco and A. Tadeu
Abstract
Definition of two-dimensional condensation via
BEM
N. Simoes, F. Branco & A. Tadeu
Civil Engineering Department,
Faculty of Sciences and Technology, University of Coimbra, Portugal
Abstract
Condensation areas across two-dimensional elements are defined using an
iterative process where the Boundary Element Method (BEM) is employed to
evaluate the steady-state heat conduction (and vapour saturation pressure), and
vapour diffusion. For each iteration, a small sub-domain is identified where
condensation occurs, i.e. where the vapour pressure is greater than the vapour
saturation pressure. The vapour pressure is made to equal the vapour saturation
pressure along this sub-domain, using the Glaser approach. A new vapour
equilibrium is then defined using the BEM solution. This iterative process is
repeated until there is no sub-domain across the element where vapour pressure
is greater than vapour saturation pressure.
1 Introduction
Condensation in building elements is of
Keywords
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