Download - TESTS OF VIPS IN SIMULATION, LABORATORY, AND PRACTICE TESTS OF VIPS IN SIMULATION, LABORATORY, AND PRACTICE Georg-Wilhelm Mainka Prof. em. Dr.-Ing. University

TESTS OF VIPS TESTS OF VIPS ININ SIMULATION, LABORATORY, AND PRACTICE SIMULATION, LABORATORY, AND PRACTICE

Georg-Wilhelm Mainka

Prof. em. Dr.-Ing.

University of Rostock, Germany

Heiko Winkler

Dipl.-Ing.

IAIB Wismar, Germany

9th International Vacuum Insulation Symposium

The Royal Institution of Great Britain London 2009-09-18

Revised Version 2009-09-30

THE KINDERGARTENTHE KINDERGARTENKITA „PLAPPERSNUT“ IN KITA „PLAPPERSNUT“ IN WISMARWISMAR

G.-W. MAINKA UNIVERSITY OF ROSTOCK H. WINKLER

IAIB WISMAR

TEST OF VIPS IN SIMULATION; LABORATORY, AND PRACTICE IVIS - THE ROYAL INSTITUTE OF GREAT BRITAIN - LONDON 2009-09-18

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BEFORE RETROFITTING: 2004

AFTER RETROFITTING: 2009

EAST GABLE FACADE VIP 1

2005: Award of the Journal „Bauphysik“

PREFAB CONCRETE PANELS

WITH CERAMIC SKIN

INSIDEHALL

NORTH FACADE

WEST GABLE FFACADE VIP 2

CONSTRUCTION OF VIP1 AND CONSTRUCTION OF VIP1 AND VIP2VIP2


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VIP1: GLASS-CERAMIC-SANDWICH

VIP2: ETICS WITH VIP-KERNEL

VIP1: VIP1: SANDWICH WITH 4 VIPS SANDWICH WITH 4 VIPS INSIDEINSIDE


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NORTHERN HALF 2005SOUTHERN HALF 2005

ANCHOR PLATE

SANDWICH ELEMENT WITHUNSEALED JOINTS

SANDWICH ELEMENTCOATED ONTO THEANCHOR PLATE

THE GAP BETWEEN OLD FACADE AND SANDWICHWAS FILLED WITHMINERAL WOOL TO AVOID CONVECTION


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VIP1: FACADE PLAN , NEARLY VIP1: FACADE PLAN , NEARLY READY FACADEREADY FACADE, , AND AND THERMOGRAPHYTHERMOGRAPHY

SOUTHERN HALF 2005


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WB

1 =

WB

2W

B 3

WB1+2

[W/mK]

WB3

[W/mK]

U-value

[W/m²K]

equival. thickness EPS (λ=40mW/mK)

d [mm]

VIP (center)

- - 0,190 200

VIP (Sandw.)

0,091 0,0208 0,345 110

ESTERN FACADE CA. 140 m² (2 GABLE WALLS SOUTH-NORTH)

SANDWICH GLASS/CERAMIC WITH VIP-KERNEL (ADCO COMPANY)

VIP1: VIP1: INFLUENCE OF THERMAL BRIDGES INFLUENCE OF THERMAL BRIDGES (WB) (WB)

Φ‘= U*A + Σψ*l

d = λ/(Φ‘*A)

-43%

VIP1: VIP1: TEST IN THE CLIMATE TEST IN THE CLIMATE CHAMBERCHAMBER


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INSTALLING THE FACADE INTO THE TESTFRAME

FACADE READY TO BE TESTEDUPPER RIGHT: GLASS SIDING ON TOP OF 4 VIPS

TO OBSERVE THEIR BEHAVIOUR

VIP 1: THERMAL BRIDGES VIP 1: THERMAL BRIDGES (WB)(WB)MEASUREMENT VS MEASUREMENT VS CALCULATIONCALCULATION


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-4,5-4

-3,5-3

-2,5-2

-1,5-1

-0,50

-12 -9 -6 -3 0 3 6 9 12

Distance from the middle of joint [cm]

Su

rfa

ce te

mp

era

ture

[°C

]

surf. temp. (IR)

surf. temp. Heat3

WB2

WB1 WB3 WB3

IR-THERMOGRAPHY AT DIFFERENT THERMAL BRIDGES (WB)

DISTRIBUTION OF SURFACE-TEMPERATUREAT WB3

VIP1: LONG TERM VIP1: LONG TERM BEHAVIOURBEHAVIOUR

VENTILATION VENTILATION


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SOUTHERN HALF NORTHERN HALF 2005UNDER

CONSTRUCTIONWITHOUT

MINERAL FIBERS

2009

VIP1: LONG TERM VIP1: LONG TERM BEHAVIOURBEHAVIOUR CRACKS CRACKS


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Detail

SOUTHERN HALF 2009ADHESIVE FIGURES ADDED 2007 TO HIDE CRACKSNEW CRACKS OCCURED

CRACK

CRACK

CR

AC

K

CRACK

IMPACTHOLE

CRACK

CR

AC

KW

ith

salt

y R

ims

at

low

er

Ele

men

t B

ord

er

VIP2: ETICS WITH VIP-VIP2: ETICS WITH VIP-KERNEL KERNEL


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NORTHERN HALF 2005under Construction

ELEMENTS

JOINTS AT SURFACE

COATING

FIXING JOINT BETWEEN ELEMENTS

VIP2: FACADE PLAN , READY VIP2: FACADE PLAN , READY FACADE, AND FACADE, AND THERMOGRAPHYTHERMOGRAPHY


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SOUTHERN HALF 2005 READY

DETAILVENTILATED ELEMENT

VIP2: U-VALUEVIP2: U-VALUE


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MEASURED U (k)-VALUE: U = 0.19 W/m²K

LONG TIME MONITORING: TEMPERATURES [°C] AND HEAT FLUX [W/m²]

VIP2: INFLUENCE OF THERMAL VIP2: INFLUENCE OF THERMAL BRIDGESBRIDGES


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WESTERN FACADE CA. 140 m² (2 GABLE WALLS)

ETICS WITH VIP-KERNEL (STO COMPANY)

-value

[W/mK]

U-value

[W/m²K]

equival. thickness EPS (λ=40mW/mK)

d [mm]

VIP (center)

- 0,19 200

VIP (ThB) 0,00275 0,22 180

Φ‘= U*A + Σψ*l

d = λ/(Φ‘*A)

-10%

VIP2: LONG TERM VIP2: LONG TERM BEHAVIOURBEHAVIOUR

VENTILATION VENTILATION


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2005

2009

NORTHERN HALF SOUTHERN HALF

CONCLUSION: VIP1CONCLUSION: VIP1

+ + Easy to handle structural glazing- High performance for adjustable fixing system- Avoid ventilation behind panels (mineral fibers)- Reasons for cracks in ceramic plates unknown,

probably to thin (3mm)- Surface to sensitive for impacts (Vandalism)- Ventilated VIPs: to many- Thermal bridges: extra energy loss 43%

not yet recommendednot yet recommendedto be further developed


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CONCLUSION: VIP2CONCLUSION: VIP2


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+ common ETICS-technique

+ VIP protected

+ Ventilated VIPs: very few: < 1%

+ Thermal bridges: extra energy loss 10%

recommendedrecommended

ENDEND

THANK YOU THANK YOU

VERY MUCH VERY MUCH

FOR YOUR ATTENTIONFOR YOUR ATTENTION


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Georg-Wilhelm Mainka [email protected] Winkler [email protected]

Download - TESTS OF VIPS IN SIMULATION, LABORATORY, AND PRACTICE TESTS OF VIPS IN SIMULATION, LABORATORY, AND PRACTICE Georg-Wilhelm Mainka Prof. em. Dr.-Ing. University

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