a probabilistic approach to moisture risk assessment for … · 2017. 11. 1. · • glaser bs en...
TRANSCRIPT
UCL Institute for Environmental Design & Engineering
Valentina Marincioni | Research Engineer
A probabilistic approach to moisture
risk assessment for internally
insulated solid walls
UCL Institute for Environmental Design & Engineering
UCL Institute for Environmental Design & Engineering
Why do we insulate?
UCL Institute for Environmental Design & Engineering
UCL Institute for Environmental Design & Engineering
Why moisture risk assessment?
UCL Institute for Environmental Design & Engineering
Why moisture risk assessment?
UCL Institute for Environmental Design & Engineering
Why moisture risk assessment?
UCL Institute for Environmental Design & Engineering
Water exists…
UCL Institute for Environmental Design & Engineering
VAPOUR DIFFUSION
CAPILLARY FLOW
GRAVITY
LIQUID DIFFUSION
SOLAR - DRIVEN
VAPOUR DIFFUSION
MOIST AIR FLOW
UCL Institute for Environmental Design & Engineering
What are the available tools?
UCL Institute for Environmental Design & Engineering
• Glaser BS EN ISO 13788
• HAMT (WUFI …) BS EN 15026
Limitations:
• 1D (no thermal bridges)
• do not include all moisture mechanisms
• Deterministic
Available software for deterministic HAMT:
WUFI® Pro Fraunhofer Institute for Building Physics
WUFI® 2D Fraunhofer Institute for Building Physics
DELPHIN TU Dresden
What are the available tools?
UCL Institute for Environmental Design & Engineering
Hygrothermal properties
of building materials
Atmospheric
moisture loads
Internal
moisture loads
Moisture response
Probabilistic risk assessment
UCL Institute for Environmental Design & Engineering
Probabilistic risk assessment
Monte-Carlo
simulations
Predictive
meta-modelling
Sampling
Propagation - HAMT
Mould growth risk
assessmentFailure criteria
Mould growth models • Building mycology
• Space-filling techniques
• Functions parametrisation
• Semi-parametric vs non-parametric
models
• Trade-off between prediction,
interpretation and flexibility
Key challenges
UCL Institute for Environmental Design & Engineering
Future research
TOOLS FOR
• Risk assessment
• Design process
• Construction process
EVIDENCE
• Policy making
• Faulty practices
UCL Institute for Environmental Design & Engineering
Valentina Marincioni | Research Engineer | [email protected]