high performance insulation based on of air - hipin - final presentation (march... · high...
TRANSCRIPT
High Performance Insulation based on
Nanostructure encapsulation of air
Theme: EeB.NMP.2010‐1
The HIPIN project received funding from the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement no 260117.
http://www.hipin.eu
HIPIN Partners
Coordinator: TWI Ltd, UKEC Project Officer : Georgios Katalagarianakis
Project Overview
• Huge potential market for a highly insulating material for new buildings and retrofits that can satisfy the needs of high density housing and new insulation regulations in Europe.
• This opportunity can be met by new building materials containing aerogels that have very low thermal conductivity (< 0.01 W/(m.K) as a monolith and typically ~ 0.015‐0.018 W/(m.K) in granular form)
Cost‐effective route to a robust aerogel for use as an
insulation material in buildings
HIPIN ObjectivesDevelopment of nano‐based high performance insulation
system(s) for energy efficiency.
Develop new affordable building products based on aerogel, suitable for both retrofits and new buildings
THERMAL PAINT THERMAL PLASTER PANELS
HIPIN AerogelSol‐gel technology to produce aerogel precursor with high silica content (60%), followed by proprietary method for supercritical drying and surface treatment.
Water Contact Angle: A‐hydrophilic, B‐hydrophobic
A high silica content precursor for aerogels
• Very low density (100‐120 kg/m3)• Low thermal conductivity (0.015 – 0.025 W/mK)• Robust synthesis route – multiple batches made to scale up to thousands of litres aerogel
• Incorporated into a matrix system – paint, plaster, and polymer composite for panel
• Suitable for new & retrofitting buildings
HIPIN Aerogel Process Technology
• Manufacturing route to a robust silica aerogel
• High silica content (58% silica) precursor (TWI and Thomas Swan) - Robust and scaleable process development during project- Scaleable to larger quantities with minimal further development
• Cost‐effective surface treatment for hydrophilic and hydrophobic silicas (Separex)
• Optimisation of processes for incorporation into: - water‐borne systems (paint, plaster) - composite polymeric matrix (panels)
HIPIN aerogel based building productsIncorporate aerogel granules into: Plaster Paint Panels
Incorporate aerogel granules into: Plaster Paint Panels
Aerogel formulated into 3 building materials
Plaster formulated with HIPIN aerogel
Vimark
Paint formulated with HIPIN aerogel
ICI (Akzo‐Nobel)
Panel composite containing HIPIN aerogel
Methodo
Demonstrators• Demonstrators for all 3 applications at Envipark, Turin
– Demonstrators were set up in Sep‐Oct 2014
– Data collection over winter of 2014‐2015
– Measurement of thermal resistance of the wall with HIPIN building elements was carried out per ISO 9869:1994 standard
– Protect sensors from direct sunlight for data accuracy
– Data acquisition and analysis showed U value improvement compared to the bare wall
Demonstrable impact on thermal performance
HIPIN Decorative Paint
Imperial Chemical Industries Ltd.HIPIN Stakeholder Workshop 10th March 2015
• Paint with HIPIN aerogel over 9m2 Demonstrator at Envipark provided quantitative assessment of thermal performance benefits
• (W/mK) ‐ HIPIN paint 0.49 (Standard paint 0.64)
• U (W/m2K) ‐ 4.4% reduction with HIPIN paint in the demonstration
• Addition of aerogel to paint did not affect other key paint properties compared to standard paint
HIPIN PlasterMaterial Thickness (mm) Lambda
ʎ [W/mK] U value (W/m2K)
HIPIN Plaster 45 0.034 0.67
Conventional 45 0.47 3.76
APPLICATION BENEFITS
Suitable for old and new buildings
External and internal application
Space optimization(low thickness)
HIPIN plaster based on HIPIN aerogels
HIPIN aerogel‐based panels• Methodo produces state of the art ventilated façade
systems formed by a structure supporting the tiles and an insulation layer.
• HIPIN panels allow for reduced thickness of panels, with lowered costs of support structures
• The developed product showed a thermal conductivity (λ = 0.025 W/(m.K)); represents an improvement of ~25% compared to best in market EPS.
• The development of the technology in the HIPIN project predicts a further reduction in the thermal conductivity could be achieved by refining the fabrication process.
Techno‐economic analysis
Cost of aerogel drives techno‐economic analysis; depending on loading of aerogel in the system.
Estimated cost of aerogel €2.2/liter (density 0.18g/cc) at 250tpa scale. Less than €1/liter possible with demand of > 5000 tpa.
As cost of aerogel comes down with growing demand, economics will be even more favourable.
Eg: For the plaster, energy savings via insulation benefits (U value achieved with less thickness) complemented by lower material use, which in turn has benefits in lowered cost of application of the plaster and transportation savings.
14
Mathematical Modeling
• Mathematical models used to determine the reduction in heating energy achievable using the three products
• Theory also used to predict the thermal conductivity of the materials based on knowledge of their composition
• Theory confirms measured values and provides a basis for further product optimisation
Heat transfer by convection
Heat transfer by conduction Heat transfer by
radiation
11%
15%19%
0.000
0.100
0.200
0.300
0.400
0.500
0.600
0.700
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
e (W
/m.K)
Aerogel volume fraction (%)
arithmetic mean
geometric mean
harmonic mean
Maxwell‐Euken
measurements
Thermal conductivity (measured vs. model prediction) at different aerogel loadings in plaster formulation
15
Life Cycle Analysis and Ecoprofiles• LCA model with Cradle to Grave analysis developed; end‐of‐life scenarios were
considered (Envipark)
• Product functionality and application dictate Functional Units definitions and comparative product- For plaster and panels, the thickness in mm to obtain a thermal resistance over 1m2 (R= 1 m2K/W) - For paints, the thickness of paint in mm to obtain a thermal resistance of R= 0.00106 m2K/W - For example, for HIPIN plaster (=0,035 W/(m.K)), a comparison was made with a thermal
insulating plaster (Vimark’s Thermocalce, =0.088 W /mK)
Primary Energy DemandGlobal Warming Potential Impact
16
ConclusionsExploitable Results (ER) Key Partner
ER 1: High silica content precursor (TEOS58)
TWI for know‐how, Thomas Swan for scale‐up
ER 2: Robust hydrophilic and hydrophobic aerogel based on TEOS58
Separex
ER 3: HIPIN Thermal insulating plaster
Vimark
ER 4: HIPIN Thermal insulating panels
Methodo
ER 5: Paint system with enhanced insulating properties
ICI
• Aerogels offer new option for insulation applications in building envelopes, via incorporation into plaster, paint, and panel applications
• Incorporation of aerogel into plaster and panel can provide a means to meeting new building codes even for retrofits
For more information, see the HIPIN website at: www.hipin.eu or contact TWI at [email protected]
Contact us….