RFID SYSTEM FOR INTELLIGENT FACADES IN SOUTHERN …
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15th INTERNATIONAL OPERATIONS & MAINTENANCE CONFERENCE IN THE ARAB COUNTRIES UNDER THE THEME: “SMART MAINTENANCE” CONICIDE WITH THE 15 TH ARAB MAINTENANCE EXHIBITION Dr.-Ing. Ayman Bishara RFID SYSTEM FOR INTELLIGENT FACADES IN SOUTHERN COUNTRIES
Transcript of RFID SYSTEM FOR INTELLIGENT FACADES IN SOUTHERN …
15th INTERNATIONAL OPERATIONS & MAINTENANCE CONFERENCE IN THE ARAB
COUNTRIESUNDER THE THEME: “SMART MAINTENANCE” CONICIDE WITH THE 15TH ARAB MAINTENANCE
EXHIBITION
Dr.-Ing. Ayman Bishara
RFID SYSTEM FOR INTELLIGENT FACADES IN
SOUTHERN COUNTRIES
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Outline Agenda
• Motivation
• RFID transponder system
• Model calibration and evaluation of measurements
• Conclusion
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Energy consumption in Arabic region = 4 times the average one of the rest of the world
Motivation
(OAPEC 2015)
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building regulations,
standards, EnEV`S
construction
practice
solar buildings
research,
demonstration projects
low energy buildings
zero heating buildings
3- liter houses
Plus energy houses
Hea
tin
g e
ne
rgy c
on
su
mp
tio
n k
Wh
/m2a
Motivation
Development of energy saving in Germany
Energy saving: Environmental protection, CO2- reduction, reduction of operation costs
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Tallest tower to be insulated with ETICS. At 143 meters making sure the system would withstand
all applied loads while maintaining architectural design was the biggest challenge (2007)
Sofitel Hotel, JBR, Dubai
Performance and quality of External Thermal Insulation Composite System (ETICS)
for sustainable buildings in the Arabic region
Motivation
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- High installation effort
- High costs
- Destructive measurement
- Cause of thermal bridges
We need an innovative
measurement system.
Conventional measuring system
RFID measuring system
- Intelligent construction
- Material identification
- Cost reduction
- Quality intensification
- Culture enhancement
Previous (wired) measuring systems
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RFID Transponder System
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Transponder
systems
Semi-passive
system
Sensor
Passive
system
Only ID Data Sensor
LF, HF, UHF, µW UHF, µW, UWBLF, HF, UHF, µW
Active
system
Point to
point
Sensor
networkLocal
RFID Transponder System
Classification of transponder
technology
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RFID Transponder System
Antenna
Transponder Chip
RFID- ReaderInformation
system
Antenna
DataTact
energy
Antenna
Transponder Chip
Antenna
Transponder Chip
Structure and basic operation of an RFID system
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RFID transponder system
Passive transponder for ID and sensor applications
Block diagram layout scheme of the humidity and temperature transponder
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RFID transponder system
Active / passive temperature and humidity transponder
sensor
battery
sensor
antenna
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Reading out process
- Reader transmits power, data and tact
- Transponder transmits back measured T&RH
Energy
Data-transfer
Reader-control
Radiofrequency field
RFID transponder system
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Application of the RFID transponder system in a practical case study in UAE
Reference cubicle
without insulation
EPS (Dalmatiner) Mineral wool Hemp
Standard cubicles at RAKRIC
B4 B1 B3 B2
Reference box
without insulation
EPS (Dalmatiner) Mineral wool Hemp
Case study at Ras al Khaimah (UAE)
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Case study at Ras al Khaimah (UAE)
Position of the T/RH Transponder
Abbildung 6: Lage der Datenlogger im Bauteil (Außenwand) mit Innenklimasensor
innen außen
Innenklima T/rH T/rH T/rH
external internal
Interior climateT/RH
T/RHT/RH
U-v
alu
e[W
/(m
²K)]
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Results
Comparison of thermal transmittance (U-value) of the 4 boxes
Evaluated from measurement Expected from theory
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Results
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
15.4.16 25.5.16 4.7.16 13.8.16 22.9.16 1.11.16 11.12.16
Feuchte (%) Temp (C)
Temperature and relative humidity between wall and insulation (Box 3, mineral wool)
Rela
tive
hu
mid
ity (
%)
Te
mp
era
ture
(°C
)
Time
RH
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0
10
20
30
40
50
60
0
10
20
30
40
50
60
70
80
90
100
29.7.16 31.7.16 2.8.16 4.8.16 6.8.16 8.8.16 10.8.16 12.8.16 14.8.16
Humidity meas. (%) Humidity sim. (%) Temperature meas. (°C) Temperature sim. (°C)
Rela
tive
hu
mid
ity (
%) T
em
pe
ratu
re (
°C)
Time
Results
Calibration of the simulation model Comparison of measured and calculated T/rh (Box3 insulated with mineral-wool)
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Results
Numerical simulation results for Box 3 (water content of mineral-wool (MW))
Year 1 Year 2 Year 4 Year 5Year 3 Year 1 Year 2 Year 4 Year 5Year 3
14𝑘𝑔
𝑚³· 0.01𝑚 = 0.14
𝑘𝑔
𝑚²= 140
𝑔
𝑚²< 200
𝑔
𝑚²
Year 1 Year 2 Year 4 Year 5Year 3
Does not exceed the standard value (European Standard EN ISO 13788)
On MW, mineral plaster without vapor barrier On MW, mineral plaster with vapor barrier On MW, plaster with organic binderW
ate
r co
nte
nt
[Kg
/m³]
Wate
r co
nte
nt
[Kg
/m³]
Wa
ter
co
nte
nt
[Kg
/m³]
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Conclusion
• An innovative wireless transponder system (RFID) with integrated hygrothermal
sensor has been developed.
• Using the RFID sensor system, the functionality of ETICS could be shown under
hot climate conditions the system can be monitored permanently which
contributes significantly to the prevention of structural damage.
• The optimization of the hygrothermal conditions using ETICS under hot climate
conditions could be achieved.
• For the case study in UAE, the avoidance of moisture pentation from outside into
the construction is key for a long-term damage-free ETICS system.
• ETICS has a big effect of significantly reducing heat flow through the outer wall
under hot climatic conditions.
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Thank you for your attention
