GLASTA

diffusion - condensation - drying
extended Glaser method


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Model
  • Multi-layered wall (1D)
  • Climates at both sides of wall
  • GLASTA calculates interstitial condensation and drying due to water vapour diffusion and capillary water transfer
Wall
  • Per layer: thickness, thermal conductivity or thermal resistance, water vapour resistance factor or water vapour diffusion equivalent thickness, humidification possibility, critical, maximal and initial water contents
  • At external and internal side: surface heat transfer coefficient, water vapour diffusion equivalent thickness

Climatic conditions
  • Monthly (or other periodically) mean values of temperature and vapour pressure or relative humidity
  • Climatic database for European locations
Calculation methods
  • Glaser method (prEN ISO 13788): condensation occurs where the calculated vapour pressure is above the saturation vapour pressure.
    The amount of condensation or drying in the layer interfaces is updated after each climate interval
  • DIN Glaser method: corresponds to DIN 4108
  • Extended Glaser method: considers capillary water movements due to condensation and drying
  Report
  • Per climate period: Glaser table and diagram
  • Water distribution diagram and water contents evolution
  • Automatic report generator
  • Animations of successive Glaser diagrams (AVI files)
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