Project financed by the European Union under the Seventh Framework Programme.

Dr. Eunate Goiti

TECNALIA RESEARCH & INNOVATION

Energy Efficiency in Buildings

• Buildings in Europe

– 40% Energy Demand

– 36% CO2 Emissions

• TARGET by IEA by 2050:

– Reduccion of 77% of the CO2

emmisions

“Energy Performance” of an average European building is poor. Themajority of energy in a building is spent to satisfy heating and coolingdemands

ECOFYS estimate that the addition of thermal insulation to existing buildings inEurope could decrease current building energy costs and carbon dioxide emissions bysome 42% or 350 million tonnes of CO2 emissions

Traditional Building Insulation Materials

Insulation materialsThermal

conductivity[W m-1K-1]

Mineral family 0.030-0.040

Polystyrene-EPS 0.030

Polystyrene-XPS 0.040

Polyurethane foam 0.022

SPACE LIMITATIONS: 20/30 cm thick insulation layers are common in buildings, often

resulting in: Bulky constructions, Difficult detailing, Loss of space.

HOW TO IMPROVE ENVELOPE INSULATION?

Conventional Insulation Materials: Increasing the thickness of theinsulating layers.

Energy Efficiency in Buildings

Superinsulation Materials – Silica Aerogels

HOW TO IMPROVE ENVELOPE INSULATION?

Decreasing the thermal conductivity of the insulation materials.

by EMPA

by TECNALIA

Superinsulating Materials< 0.020W/mK

Superinsulation Materials – Silica Aerogels

• Amorphous nanostructured and lightsolid material with nanometer poresizes which confine the gas within athree-dimensional structure.

• Pore Volume 90%

• Apparent Density 0.003-0.35 g/cm3

• Average pore diameter 20-50 nm

• Specific Surface Area 250-800 m2g-1

WHY AEROGELS?

Main challenges:

i. Mechanical reinforcement

ii. Lowering production cost

Main challenges:

i. Mechanical reinforcement

ii. Lowering production cost

λ < 0.018 W m-1 K-1 (at ambient conditions)

Comercial challenge: monolithic aerogel by ambient drying methodology

AEROCOINs www.aerocoins.eu

Aerogel-based Composite/Hybrid Nanomaterials for

Cost-Effective Building Super Insulation System

Funded under 7th Framework Programme

Research area:EeB.NMP.2010-1 New nanotechnology-based high performance insulation system for energy efficiency

Start Date: 2011-06-16Duration: 48 monthsProject Cost: 4.3 million euro

Project Funding: 3 million euro

Project Coordinator: Dr. Eunate Goiti Ugarte eunate.goiti@tecnalia.com

Organisation: FUNDACION TECNALIA RESEARCH & INNOVATION

Scientific & Technical Objectives

STO 2.- To develop subcritical ambient

pressure drying process

STO 3.- Design and fabricate a building

component for its implementation in the

envelope of existing and/or new buildings

STO 4.- Demonstrate the significant cost

reduction of the commercial production of

superinsulating aerogel-like materials

STO 1.- Synthesis of novel, reinforcedsuperinsulating silica aerogel-based basedon coupling of silica and cellulose orincorporating cellulose nanofibers

courtesy of ARMINES

Consortium

Methodology

WP1_Lab Scale_Aerogel Synthesis

Partners involved: PCAS, ARMINES, EMPA, TECNALIA

M01- M30

Objectives: design and synthesis of brand new superinsulatingsilica-based aerogels. The main technical and scientificobjective is to optimize the soft-chemistry processes for thepreparation of such superinsulating silica-based aerogel-likematerials i) to promote their mechanical reinforcement and ii)their multifunctionality, without degrading their very lowthermal conductivity.

3.- Cellulosic nanofibers1.- Nanotructutured cross-linking silica/cellulose

hybrid*

*S. Sequeira, D.V. Evtugin, I. Portugal, Preparation of Cellulose/Silica Hybrid Composites, Polymer Composites 30 (2009) 1275-1282

J. P. Randall, M. A. Meador, S.C. Jana Tailoring mechanical propertiesof aerogels for aerospace applications.

ACS Applied Materials Interfaces 3(3) (2011) 613-626

2.- Polymer-Cross Linking

WP1_Lab Scale_Aerogel Synthesis

3 main

reinforcement

approaches

courtesy of ARMINES

WP2_Lab Scale_Drying & Characterization

M7- M30

Objectives

• Subcritical ambient drying optimization

• Theoretical drying optimization

• Supercritical drying optimization

Characterization:

� Thermal

� Mechanical

� Resistance to fire

� Water sorption studies

Partners involved:

SEPAREX, TUL, ZAE, VTT, TECNALIA, ARMINES, PCAS, EMPA

10% 20% 30% 40% 50% 60% 80%

Alkoxide (PEDS) based aerogels

Our silica reference materials

WP3_Pilot scale fabrication

M19- M36

Partners involved:

EMPA, ZAE, VTT, TECNALIA, SEPAREX, PCAS, ACCIONA

Objectives

• Up-scaling of aerogel formulation developed in WP1 & WP2

• Fabrication of aerogel monolithic 50cmx50cm

• Design layout of a continuous process

10cm

50cm

Lab-scale samples

Pilot-scale samples

WP4_Component manufacturing

M22- M36

Partners involved:

ACCIONA, TECNALIA, EMPA, ZAE, VTT

Objective

• Design and fabrication of an aerogel-based

building component

We have to cover: 9m2

WP5_Building Integration & Validation

M31- M45

Partners involved:

TECNALIA, ACCIONA

Objective: • Integration of the components (obtained in WP4) in

a demonstrator building to validate its performance

under real conditions

DemoPark in Madrid KUBIK by Tecnalia in Bilbao

Results

1. Energy and CO2 emissions savings in comparison to reference unit.

2. The mechanical and structural stability of the component: durability

3. Evaluation of thermal losses through the structure joints (slab fronts and pillars)

with flux-meters and superficial temperature measurements.

4. Identification of thermal bridges in the component with thermographic camera.

5. Air tightness measurements.

EeB.NMP.2010-1 New nanotechnology based high performance insulation systems for energy efficiencyNANO E2B CLUSTER

� The Nano-E2B-Cluster is an initiative of the EU project officer

Georgios Katalagarianakis and PTA Marcel Dierselhuis.

� Starting date: September 2011

The main objective of the Cluster is to joint efforts in order to find

synergies and fields of cooperation that will allow the projects to be

more competitive. At the present moment efforts concerning common

demonstration, standardization and dissemination activities are in

progress.

EeB.NMP.2010-1 New nanotechnology based high performance insulation systems for energy efficiencyNANO E2B CLUSTER

PROJECT NANOTECHNOLOGY-BASED EXPECTED PRODUCTS

COOL-CoveringsNIR Reflective Outdoor Paints, NIR Reflective Roof MembraneCoatings & NIR Reflective Ceramic & Tiles

NanoPCM High-performing inorganic nanofoam with thermal storage capacity

NanoInsulate

Vacuum insulation panels (VIPs) incorporating new nanotechnology-based core materials (such as nanofoams, aerogels and aerogel composites)

HIPIN Superinsulating Aerogel-based paints, plasters and coatings

Aerocoins Superinsulating reinforced Aerogel-based Boards

NanoFoam High-performing nanostructured polymeric foam

EeB.NMP.2010-1 New nanotechnology based high performance insulation systems for energy efficiencyNANO E2B CLUSTER

� Cluster general meetings

� Common dissemination activities

� Edition of a Nano-E2B-Cluster promotional video

•http://youtu.be/xLgORMlAYV0 •http://youtu.be/23JAtZ4oPgY

� Demo Activities: i.e. DemoPark in Algete, Madrid

� Cluster extension with new members

Project partly financed by the European Union under the Seventh Framework Programme.

THANK YOU VERY MUCH FOR YOU ATTENTION

PROJECT COORDINATOR:

Dr. Eunate Goiti

eunate.goiti@tecnalia.com

www.aerocoins.eu