improving facade performance with innovative and ... · improving facade performance with...
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All rights reserved by Asahi Glass Co., Ltd
Dr. Eiji Shidoji
Executive Director (Technology)
AGC Asia Pacific Pte Ltd 19-September 2015
Penang, Malaysia
Improving Facade Performance with Innovative and Sustainable Materials
1
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A Façade is any side of a building that faces the public Basic Considerations • Safety • Aesthetics • Strength (Wind Load, etc. ) • Thermal performance (U-Value, SC)
Façade Considerations
2
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Modern Urban Considerations • Life Cycle Costs • Functionality • Weatherability • Comfort (Sound, Daylight, etc.) • Renewable Energy
Façade Considerations
3
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1. Improving Durability Fluoropolymer protective coatings
2. Use of Energy Efficient glass materials
Coated Glass Insulated Glass Unit (IGU) ATTOCH BIPV
3. Dynamic materials to enhance Aesthetics in Façade
Combination of Film and LED lighting
Improving Design & Sustainability in Facades
4
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1. Improving Durability Fluoropolymer protective coatings
2. Use of Energy Efficient glass materials
Coated Glass Insulated Glass Unit (IGU) ATTOCH BIPV
3. Dynamic materials to enhance Aesthetics in Façade
Combination of Film and LED lighting
Improving Design & Sustainability in Facades
5
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SC value
U Value(Window)
U value(wall)
WWR
OTTV (Overall Thermal Transmittance Value)
0.2% to 5%
10% to 20%
70% to 85%
WWR (Window to Wall Ratio) & SC (Solar Coefficient) are
dominant factors!
6 Energy Efficient
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Minimize Window Size (WWR)
7 Energy Efficient
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SC value
U value
WWR=0.5
OTTV of each products in case of WWR=0.5
(W/m2)
OTTV
(W/m2K)
Meet regulation OTTV<50
Single Glazing Coated Glass
Single Glazing Glass
Sunergy/Green(Tv:56%)
OTTV=55
Green(Tv:64%)
OTTV=70
Low-E IGU
Stopray (Tv:52%)
OTTV=35
Sunergy/Green IGU OTTV=44
Required SC & U to meet regulation
8 Energy Efficient
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Singapore Malaysia Indonesia Thailand
50 45 45 50
(W/m2)
OTTV Regulation in SE Asia
9 Energy Efficient
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OTTV = α((1-WWR)*Uw)*TDeq) + (WWR*Uf*ΔT) + (WWR*SC*SF)
WWR=0.5
OTTV in each country in case of Uwindow=3.0, WWR=0.5
OTTV Regulation in SE Asia
OTTV formula should be adjusted according to the climate
Direct Normal Solar Radiation
Conduction through wall Conduction through window Radiation through window
10 Energy Efficient
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Sunergy (On Line)
Versatile pyrotic
Easy handling
Wide range products for various requests.
Stopsol (On Line)
Good SC
Easy handling
AGC Range of Solar Control (Low E) Glazing
Stopray (off Line)
Excellent selectivity
Neutral color
Low U
11 Energy Efficient
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STOPRAY (Silver based low-E)
Structure of Low-E
double glazing
Glass
facing
interior
Spacer
Desiccant
Glass
facing
exterior
Special Metal Film
Low-E double glazing Single pane Double glazing
●Improved solar shielding performance (SC: Shading coefficient)
This is the key point
●Improved thermal insulation (U value)
U value:
5.8 W/(m2K)
SC:1.0 Solar energy
100%
Transmittance 86%
Reflection 8% Absorption 6%
Re-radiation 4%
Re-radiation 2%
12%
SC:0.90 Solar energy
100%
Transmittance 74%
Reflection 14% Absorption
Re-radiation 7%
Re-radiation 5%
SC:0.28 Solar energy
100%
Transmittance 21%
Reflection 35% Absorption
Re-radiation 40%
Re-radiation 4%
44%
Single pane
U value:
3.0 W/(m2K) U value:
1.6 W/(m2K)
Low-E double glazing Double glazing
12 Energy Efficient
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Layered structure of
Low-E Film
Cross section
TEM Photograph
Glass
ZnO
ZnO
ZnO
Ag
Ag
~250nm
紫外線 近赤外線 可視光線 -10
0
10
20
30
40
50
60
70
80
90
100
200 400 600 800 1000 1200 1400 1600 1800 2000
Low-E double-glazing
Double-glazing
Wavelength (nm)
Tra
nsm
itta
nce
(%)
Spectroscopic transmittance
紫外線 近赤外線 可視光線 -10
0
10
20
30
40
50
60
70
80
90
100
200 400 600 800 1000 1200 1400 1600 1800 2000R
eflecta
nce
(%)
Spectroscopic reflectance
Optimal design of multi-
layered film structure
The optical interference effect is used
to enable visible light to pass through
and infra-red light to be reflected
Wavelength (nm)
Low-E double-glazing
Double-glazing
紫外線 近赤外線 可視光線 UV Near-infrared light Visible light
紫外線 近赤外線 可視光線 UV Near-infrared light Visible light
The Secret of Heat Shielding
13 Energy Efficient
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Conventional glass Low-E glass
Heat dissipation by
radiation reduced to 1/10
Emissivity: 0.9 Emissivity: below 0.1
Layered structure of
Low-E Film
Glass
ZnO
ZnO
ZnO
Ag
Ag
~250nm
Uses low emissivity
of silver
The low emissivity of silver suppresses
heat transfer by radiation
The Secret of Thermal Insulation
14 Energy Efficient
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Load
Washer
Inspection
Buffer
Buffer
Coat zones
Unload
Strength of Offline Coating
Various Materials Combination
Higher Energy Performance
Variety : Various Color Appearance
Offline Coating Process Flow Sputter
15 Energy Efficient
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Project Name : Catalana Occidente (Barcelona, Spain) Glass Product : Stopray Indigo 48T
Project Name : Myzeil, (Frankfurt, Germany) Glass Product : Stopray Vision 50T
Project References
16 Energy Efficient
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Stopsol (On Line)
Good SC
Easy handling
Sunergy (On Line)
Versatile pyrotic
Easy handling
Wide range products for various requests.
AGC Range of Solar Control (Low E) Glazing
Stopray (off Line)
Excellent selectivity
Neutral color
Low U
17 Energy Efficient
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Stopsol, Sunergy
Float Online Production Raw material
burner
FURNACE
molten glass
Metal bath
Under coater – layer #1 Top coater – layer #2
Strength of Online Coating
High Durability & Resistances : Scratch, Chemical, etc…
Easy Handling for Glass Processing
Versatile : Can be used Single or double glazed.
Glass Temp. 600oC ~ 700oC
Pyrolitic (On Line) Coating – CVD
18 Energy Efficient
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Comparison of Stopsol and Sunergy
Stopsol Sunergy
Visual light
Solar energy
Visual light
Solar energy
High light reflection Low light reflection
~35% ~8%
19 Energy Efficient
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Project Name : Bishan Library, Singapore Glass Product : Sunergy Clear Project Name : Peterson Condominium,
Singapore Glass Product : Sunergy Azur
Project References
20 Energy Efficient
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Project Name : Waterplace Condominium Singapore Glass Product : Stopsol Classic Dark Blue
Project Name : Wavelink, Singapore Glass Product : Sunergy Green
Project References
21 Energy Efficient
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1. Improving Durability Fluoropolymer protective coatings
2. Use of Energy Efficient glass materials
Coated Glass Insulated Glass Unit (IGU) ATTOCH BIPV
3. Dynamic materials to enhance Aesthetics in Façade
Combination of Film and LED lighting
Improving Design & Sustainability in Facades
22
All rights reserved by Asahi Glass Co., Ltd 23 Enhance Aesthetics
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What is ETFE FILM ?
C
H
H F
C C C
H
H
F
F
F
n m
Ethylene-Tetrafluoroethylene copolymer
Fluon® ETFE FILM is high-performance film produced by AGC with its own Fluon® ETFE resin.
Fluon® ETFE FILM shows the excellent features, and can be used in various applications
AGC’s advantage is to develop and produce both resin and film.
24 Enhance Aesthetics
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Structure Roof and façade Greenhouse covering
Energy Solar-cell protection Fuel battery
Electronics Release film for Flexible
Printed Circuits Release film for
semiconductor
Others Protective film for noise
insulation Wallpaper surface Range hood
Various Applications of Fluon ETFE FILM
25 Enhance Aesthetics
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Fluon ETFE FILM strengths
1. Outstanding Weatherability
2. High Light Transmittance
3. Flexible Design • Free Printing • Wide range of Colours • Unique Design • Evening Illumination • Light Support Structure
26 Enhance Aesthetics
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Film Property: UV transmittance over long
service life
Weatherability
27 Enhance Aesthetics
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Weatherability
Film Property: Tensile strength retention over
long life
28 Enhance Aesthetics
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High Light Transmittance for Lawn
Transparent films for East-South roof
White films for other part (including façade)
Grass growth!
High Light Transmittance
29 Enhance Aesthetics
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16mm
“P12” Covering Ratio 46%
4mm
“P63” Covering Ratio 63% “P61” Covering Ratio 80%
Free Printing
30 Enhance Aesthetics
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Standard Colours:
WT :(White)
TB:(Blue)
Wide Range of Colours
Other colours: More than 100 colours are available (Depends on volume)
31 Enhance Aesthetics
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Light Support Structure
Lighter support structure required (compared to glass)
32 Enhance Aesthetics
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1. Single Layer 2. Cushion Type (Multi Layer)
Fastener
Film
Frame
Tension Tension Air Pressure
Thermal Insulation!
Unique Design / Installation Type
33 Enhance Aesthetics
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How Strong is ETFE Film?
Unique Design / Strong Cushion
34 Enhance Aesthetics
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Allianz Arena (Football stadium) (2005, Munich in Germany)
2 layered Cushion for Roof & Facade
White & Transparent Film
Approx. 200,000 sqm as film
Unique Design / Cushion type
35 Enhance Aesthetics
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2 layered Cushion for Roof & Facade
White & Transparent Film
Illumination by fluorescent back-light
Contribution of film due to diffused light transmittance
Reflecting 2 team color : FC Bayern München (Red), TSV München von 1860 (Blue)
Evening illumination / Allianz Arena, Germany
36 Enhance Aesthetics
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2 layered Cushion for Roof & Facade
White Film
Illumination by LED back-light which can change colour by
electric control
Contribution of film due to diffused light transmittance
Evening illumination / UNIQLO, Japan
37 Enhance Aesthetics
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Khan Shatyr Entertainment Center
Astana, Kazakhstan
Project references
38 Enhance Aesthetics
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Sentosa Universal Studio
Singapore
Project references
39 Enhance Aesthetics
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Sports Hub
Singapore
Project references
40 Enhance Aesthetics
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End of Presentation
Thank you for your kind attention
Dr Eiji Shidoji
Improving Facade Performance with Innovative and Sustainable Materials
41