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Drying of porous building materials: hydraulic diffusivity and front propagation

Lockington, D. A. / Parlange, J. -Y. / Barry, D. A. / Leech, C. A.

Abstract One-dimensional drying of a porous building material is modelled as a nonlinear diffusion process. The most difficult case of strong surface drying when an internal drying front is created is treated in particular. Simple analytical formulae for the drying front and moisture profiles during second stage drying are obtained when the hydraulic diffusivity is known. The analysis demonstrates the origin of the constant drying front speed observed elsewhere experimentally. Application of the formulae is illustrated for an exponential diffusivity and applied to the drying of a fired clay brick.

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Drying of porous building materials: hydraulic diffusivity and front propagation

Lockington, D. A. / Parlange, J. -Y. / Barry, D. A. / Leech, C. A.

Abstract

Drying of porous building materials: hydraulic diffusivity and front propagation

Lockington, D. A. / Parlange, J. -Y. / Barry, D. A. / Leech, C. A.

Abstract

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Titel:

Drying of porous building materials: hydraulic diffusivity and front propagation

Beteiligte:

Lockington, D. A. (Autor:in) / Parlange, J. -Y. (Autor:in) / Barry, D. A. (Autor:in) / Leech, C. A. (Autor:in)

Erschienen in:

Materials and Structures ; 36

Erscheinungsdatum:

2003

ISSN:

1359-5997

DOI:

https://doi.org/10.1007/BF02481524

Medientyp:

Aufsatz (Zeitschrift)

Format:

Sprache:

Englisch

Schlagwörter:

Front Propagation , Front Speed , Hydraulic Diffusivity , Front Position , Moisture Profile

Klassifikation:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung
Lokalklassifikation TIB: 275/6500 / 250/6500

Lockington, D.A. | Online Contents | 2003

Drying of porous building materials: hydraulic diffusivity and front propagation

Lockington, D. A. / Parlange, J. -Y. / Barry, D. A. et al. | Springer Verlag | 2003

Drying of porous building materials: hydraulic diffusivity and front propagation

Lockington, D. A. / Parlange, J.-Y. / Barry, D. A. et al. | British Library Online Contents | 2003

Drying of porous building materials: hydraulic diffusivity and front propagation

Lockington, D. A. / Parlange, J. -Y. / Barry, D. A. et al. | Online Contents | 2003

Measurements of Moisture Diffusivity for Porous Building Materials

Richards, R. F. / ASHRAE / United States; Department of Energy et al. | British Library Conference Proceedings | 1992

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