- methods and techniques to guarantee high quality in...
TRANSCRIPT
![Page 1: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/1.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
How to identify a high quality VIP
- methods and techniques to guarantee high quality in production and application -
Gregor ErbenichPorextherm Dämmstoffe GmbH
Heisinger Straße 8D-87437 Kempten
Tel.: +49 (0) 831 / 57 53 60Fax: +49 (0) 831 / 57 53 63
e-Mail:[email protected]
![Page 2: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/2.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What is the difference between?
vs.
Nobody asks:� How long does it keep vacuum?� How can I control the vacuum?� Does it work properly?
![Page 3: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/3.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What determines the quality of a VIP?main parameters
� Raw materials ⇒ e.g. quality of fumed silica (surface), open cell foam (cell size, open cell content)
� Moisture content of raw materials
� Humidity in production and raw material storage facilities
� Barrier properties of film
� Quality of sealing
� Vacuum level
� Density of core
![Page 4: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/4.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Quality testing before, during and after productionWhat can be done? – Who can do it?
Before production During productionAfter production
Before shipment
After shipment
Before use
� Raw materials ⇒ e.g. quality of fumed silica, open cell foam
� Moisture content of raw materials
� Barrier properties
Producer Customer
� Visual check �� Haptics check �� Dimension check �
� Internal pressure ?� Thermal conductivity ?
� Humidity in production� vacuum level � quality of sealing� density of core
� Visual check� Haptics check� Dimension check� Internal pressure � Thermal conductivity
![Page 5: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/5.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Can VIP quality be measured?main requirements
� Thermal conductivity
� Internal pressure
0
5
10
15
20
25
30
35
40
0,01 0,1 1 10 100 1000
Pressure [mbar]
Th
erm
al
Co
nd
ucti
vit
y
[mW
/(m
*K)]
fumed silica
open cell PU-foam
open cell PS-foam
precipitated silica
glass fiber
PU-foam withoutvacuum
![Page 6: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/6.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Can VIP-quality be measured?Overview of test methods for thermal conductivity
Reference VIPs for calibration curveHeat flowXHeat Flow comparison method
Oxidisable surface(only good / bad verdict possible)
Gas volumeXGas volume sensor
Calibration curve λ vs. p for VIPInterior gas pressure pXGas pressure sensor
Laser distance measurementCalibration curve λ vs. p for VIP
Interior gas pressure pXFoil lift-off method
Different parametersThermal effusivity EXMeasurement effusivity
Calibration (λ vs. p for membrane and λ vs. pfor VIP)
Heat flowXInsertion of solid bodies method
Heat transfer coefficient UXHot box method
Calibration standardTemperature difference ∆TXHeat Flow method
Amount of heat QXGuarded hot plate method
indirectdirect
What is required to determine thermal conductivity?
Measured parameterMeasuring procedureMethod
![Page 7: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/7.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Main VIP test methods Guarded hot plate method
Source: LaserComp USA
![Page 8: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/8.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Main VIP test methods
Function
� Energy that flows through the specimen/sample at defined surface temperatures (hot and cold plate) and specimen thickness is measured.
� Thermal conductivity is calculated out of these values independently on material and thickness
� Due to extremely low heat flow through a VIP, stabilization takes quite long
Guarded hot plate method
![Page 9: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/9.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Main VIP test methods
Advantages
� Very accurate/direct measurement of thermal conductivity.All parameters are known or determined automatically
� Nearly no limitation (max. 760 mm width) of specimen size and thickness
� Easy to handle, comfortable
Disadvantages
� Very slow. ~ 1 – 1,5 h per measurement
� Not mobile
� Expansive devices (52.000 – 100.000 $)
Guarded hot plate method
![Page 10: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/10.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Main VIP test methods Foil lift-off method
Device installed in vacuum chamber External „suction bell“ device
Source: The Vac Company GmbH
![Page 11: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/11.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Main VIP test methods
Function
� VIP will be placed in evacuation chamber (or under suction bell)
� Pressure inside the chamber will be reduced until gas pressure inside the VIP is higher than pressure inside the chamber
� Foil lift-off will be detected by a laser device and pressure level will be determined automatically
Foil lift-off method
Vacuum chamber
VIP
pVIP
pchamber
Laser device
Fixing plate
Barrier film
![Page 12: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/12.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Main VIP test methods
Advantages
� Very accurate measurement of internal pressure with chamber installed version
� Nearly no limitation of specimen size and thickness
Disadvantages
� Reasonable fast ~ 2 – 5 min (in vacuum chamber) per measurement
� Not mobile„mobile version“ is not really mobile. Double check necessary due to adhesion of barrier film to core
� Reasonable expansive
� for 100% testing, too slow or chamber blocked for production
Foil lift-off method
![Page 13: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/13.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
external measurement head
internal sensor disk
vacuum panel30 mm
Main VIP test methods Insertion of solid body method
source: Va-Q-tec
![Page 14: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/14.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Function
0
5
10
15
20
25
30
35
40
45
50
0,01 0,1 1 10 100 1000
Pressure [mbar]
TC
- f
leece
[m
W/(
m*K
)]
0
2
4
6
8
10
12
14
16
18
20
0,01 0,1 1 10 100 1000
Pressure [mbar]
TC
- f
um
ed
sil
ica
[m
W/(
m*K
)]
λ � p
λfleece � p p � λinsert = λVIP
Main VIP test methods Insertion of solid body method
Measurement can be influenced by:- Different temperature - Airflow- Incomplete surface contact- Quality of fleece (porosity, density, moisture
content etc.)
Result can be influenced by:- Core quality / formulation - Density- Moisture content etc.
![Page 15: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/15.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
main VIP test methods
Advantages
� Fast measurement
� Very accurate measurement of internal pressure under defined conditions!
� no limitation of specimen size and thickness
� comparable cheap
Disadvantages
� defined conditions for measurement absolutely necessary
� Calibration curves necessary for calculate thermal conductivity value.
� not “commercial” available, due to patent situation
� not standardized/normed
Insertion of solid body method
![Page 16: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/16.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Interim conclusionVarious methods are available, but …
either
to slow,to expansive,
too sensitive (temperature etc.),not mobile
or
fast enough, but …indirect measurements,
too sensitive (needs defined measurement conditions) � not reliable enoughnot “free” availablenot contact free
![Page 17: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/17.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What would be desirableThe ideal measurement device
Measurement device / sensor for thermal conductivity and inner pressure
� very accurate
� contact free / remote monitoring
� independent of external influences (temperature, airflow etc.)
� saved historic values “on board” for serious lifetime calculation
� small / light weight
� easy to handle
� reasonably priced
![Page 18: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/18.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneCross-linked quality system
Measurement devices
Quality certification
Customer training
Product protection
![Page 19: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/19.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
� Quality certification ⇒ e.g. ISO 9001
� External control of producers ⇒ e.g. compulsory in connection with DIBtapproval � Ü-Label
DIN EN ISO 9001:2000
Zertifikat: 01 100 030449
![Page 20: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/20.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
�Quality label ⇒ RAL – VIP quality label
� labeling / handling instructions
![Page 21: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/21.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
� panel protection
![Page 22: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/22.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
� panel protection
protection layer – rubber granule matprotection layer – EPS
![Page 23: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/23.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
� panel protection
protection layer – XPS
sour
ce:
Pol
ywer
t
protection layer – Polyester fiber mat
![Page 24: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/24.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
� panel protection
plaster-based sheeting
sour
ce:
Vak
u-Is
othe
rm
with PVC-frame
![Page 25: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/25.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
What can be doneSolutions, to increase quality level and customer confidence
� training
![Page 26: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/26.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Conclusion
� Lot of suitable measurement devices are available, but a very accurate, robust, reliable, easy to handle and reasonable cheap system is not available yet.
� Quality is not create by measurements but in a serious, controlled production and production process
� Quality can only be obtained by users that are aware of the sensitivity of the product
� Sensitivity of the product can be reduced by intelligent protection
High quality can only be achieved by producers with an
extremely high quality approach and customers/users that know and respect the limitations of the product.
![Page 27: - methods and techniques to guarantee high quality in ...oisd.brookes.ac.uk/ivisnet/resources/presentations/1A_Gregor... · 9th International Vacuum Insulation Symposium ... Foil](https://reader031.vdocuments.mx/reader031/viewer/2022030410/5a96925c7f8b9adb5c8ce6b6/html5/thumbnails/27.jpg)
Gregor Erbenich
Global Marketing Manager
Porextherm Dämmstoffe GmbH
9th International Vacuum Insulation SymposiumThe Royal Institution of Great Britain
17 and 18 September 2009
London, UK
Create space – save energy
with Vacupor® VIPs
Thank you for your attention