contribution to annex 65 - easee project - annex 65 kick-off meeting long-term performance of...
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Contribution to Annex 65- EASEE Project -
Annex 65 Kick-Off MeetingLong-Term Performance of Super-Insulating Materials
in Building Components & SystemsGRENOBLE – France
11-12 Sept 2014
Prof. Bruno Daniotti, Rosanna Galliano - POLIMI
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Objectives
Envelope Approach to improve Sustainability and Energy Efficiency in existing multi-store multi owner residential building Project
UE Project – 7FP
http://www.easee-project.eu/home
48 months project (2012-2016)
http://www.euronews.com/2014/09/08/new-skins-for-leaky-buildings/
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ObjectivesFocus on WP4: Prototypes for thermal inner retrofitting Hygro-thermal properties - characterization tests Installation on the test wall Monitoring & Modeling pre and post-retrofitting
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Prototypes for internal retrofittingDesign and production at EMPA of 3 different solutions (aerogel based & perlite based)
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Lab tests for assessing the hygro-thermal propertiesDevelop functions for aerogel based material
1. Thermal conductivity measurements (dry and moist condition)• Lambda value at 50% , 80% and 95%
RH
2. Water vapour permeability (dry and wet cup method)• At 23°C and 0/50%RH by means of
desiccant for dry state• At 23°C and 50/93%RH by means of
salt solution for wet state
3. Hygroscopic sorption tests (at isotherm condition)• Water content at 30%, 50%, 80% and
95% RH
4. Water absorption by total immersion• Free water saturation value
5. Water absorption coefficient by partial immersion• Aw 24h
Characterization tests
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Installation on the test wall
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Monitoring &Data Collection
Indoor and outdoor sensors:T surface, T air,RH surface, RH air,Heat Flux,Solar radiation, Rain, Wind
Pre & Post Retrofitting
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Modeling pre & post retrofit Heat and Moisture Transfer calculation in transient condition
Comparison with data monitoring
Performance evaluation:- Transient U-value (pre & post)-Moisture content-Indoor comfort
Long-term prediction about performance decay over time
Different weathers & indoor climate
Define main aging factors & …DURABILITY…
WUFI 5.2, (Wärme und Feuchte instationär - Transient Heat and Moisture), developed by IBP – Fraunhofer Institute for Building Physics
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In conclusion…
For IEA-EBC Annex 65:
“ Long-Term Performance of Super-Insulation in Building Components & Systems”
SUBTASK 2: Characterization of materials & components - Laboratory Scale
Subtask Leader: FIW MunichAction 2A: Materials Testing & Ageing Procedures (Experiments & Simulation)Action 2B: Components & Systems Testing (Experiments & Simulation)SUBTASK 3: Practical Applications – Retrofitting at the Building Scale – Field
scaleSubtask Leader: Chalmers UniversityAction 3A : Mapping of the Use Conditions (Components & Systems)Action 3B : Performance at the Building Scale (Experiments & Simulation)Action 3C : Practical Applications focused on Retrofitting SUBTASK 4: Sustainability – LCC, LCA, EE – Risk & BenefitSubtask Leader : Quantis Action 4A: Life Cycle Assessment (LCA), including Embodied
Energy (EE)Action 4B: Life Cycle Cost Analysis (LCC)
SUBTASK 1: State of the Art on Materials & Components - Case Studies
Subtask Leader: ZAE Bayern – (Co-leader EMPA)Action 1A: Materials & Characterization MethodsAction 1B: Components & SystemsAction 1C: Case Studies at the Building Scale
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Thank you for the attention
In collaboration with:
Dr. Karim Ghazi WakiliDr. Samuel BrunnerMr. Thomas StahlMr. Vonbank RogerDr. Matthias Koebel
EMPA Überlandstrasse 129 CH-8600 Dübendorf
Prof. Gabriele Masera, WP4 Chairman& WP4 Working Team
POLIMIVia Ponzio 31 I-20133 Milano
Rosanna Galliano, MEng, PhD candidatePolitecnico di MilanoDepartment of Architecture, Built environment and Construction EngineeringVia Ponzio 31, I - 20133 Milano@: [email protected]