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

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/

ObjectivesFocus on WP4: Prototypes for thermal inner retrofitting Hygro-thermal properties - characterization tests Installation on the test wall Monitoring & Modeling pre and post-retrofitting

Prototypes for internal retrofittingDesign and production at EMPA of 3 different solutions (aerogel based & perlite based)

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

Installation on the test wall

Monitoring &Data Collection

Indoor and outdoor sensors:T surface, T air,RH surface, RH air,Heat Flux,Solar radiation, Rain, Wind

Pre & Post Retrofitting

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

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

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@: rosanna.galliano@polimi.it