Combined thermal and lighting simulation of envelope ... · Combined thermal and lighting...
Transcript of Combined thermal and lighting simulation of envelope ... · Combined thermal and lighting...
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Combined thermal and lighting simulation of envelope systems
through a fast pre-design software
Martin HauerProject Manager Bartenbach [email protected]
Foto: Hufton and Crow
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founded 1976 (Prof. Dr. h.c. Ing. Christian
Bartenbach) Independent from manufacturers
90 employees, ca. 40 in lighting design
Location: Aldrans,Austria
More than 10.000 projects worldwide
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LIGHTING
DESIGN
LIGHTING
SOLUTIONS
RESEARCH &
DEVELOPMENT
ACADE
MY
Day & artificial lighting design
Competition support
Model construction & simulation
Material- and colour consultation
Secured solution quality
From the concept to the realisation
Special and complex lighting
applications Neutral and independent
from the industry
Latest state of research
One point of contact
Lighting control and Service
Light impact research on beings
Product development for daylight &
artificial light
Energy performance analysis
Optical design
Photometry
Academic symposia
Seminare und Workshops
Light experience worls
DIVISIONSFlexible planning and consulting teams for best
solutions.
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Human beings are creatures
of light. Light shapes our daily
rhythm, it influences our
moods
and our ability to perform. The
effect light has on people is
one
of the core issues at
Bartenbach.
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Visual
• Daylight - Level: guiding daylight into buildings
• Daylight - Distribution: homogeneous room distribution
• Glare protection: ensure visual comfort
• View to outside: relation towards outside
Energy
• Overheating avoid during cooling periods in summer
• Solar gains use to reduce heating loads in winter
Non-visual
• Perception and Mood: attention, concentration, memory
• Circadian Rhythm: hormone, heart rate, body temperature
Daylight requirementsrelevant – and concurring – criteria
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Visual
• Daylight - Level: guiding daylight into buildings
• Daylight - Distribution: homogeneous room distribution
• Glare protection: ensure visual comfort
• View to outside: relation towards outside
Energy
• Overheating avoid during cooling periods in summer
• Solar gains use to reduce heating loads in winter
Non-visual
• Perception and Mood: attention, concentration, memory
• Circadian Rhythm: hormone, heart rate, body temperature
Daylight requirementsrelevant – and concurring – criteria
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Integral Façade controlSolar control vs. Daylight utilization
Without solar control:
• Visual discomfort
• Thermal stress
• High cooling loads
E > 500 lx
L > 5000 cd/m²
80
0 W
/m²
E > 500 lx
L < 3000 cd/m²
80
0 W
/m²
10
0 W
/m²
5 - 8 W/m²
Using shading systems:
• Glare protection
• Reducing solar gains
• High artificial light loads
40
0 W
/m²
T > 26° T < 26°
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Motivation
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Motivation
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Vision
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
DALEC Online ToolDay- and Artificial Light with Energy Calculation
www.dalec.net
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Concept
location &
climate datadaylight module
artificial light
modulethermal module
Energy demand:
heating + cooling + lighting [W]
exterior illuminance [lx]
Interior daylight
level [lx]
artificial light demand [W]
Radiation [W] &
Exterior temperatureoccupant &
control module
Facade setting
Switching-/
dimming mode solar gain [W]
Irradiation [W]
(Facade)
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Concept
location &
climate datadaylight module
artificial light
modulethermal module
Energy demand:
heating + cooling + lighting [W]
exterior illuminance [lx]
Interior daylight
level [lx]
artificial light demand [W]
Radiation [W] &
Exterior temperatureoccupant &
control module
Facade setting
Switching-/
dimming mode solar gain [W]
Irradiation [W]
(Facade)
location &
climate data
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Location & Climate data
DALEC Calculationsbased on:
• IWEC2
• TMY3 and
• CWEC
weather data for
• > 3100 Locations worldwide
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Concept
location &
climate datadaylight module
artificial light
modulethermal module
Energy demand:
heating + cooling + lighting [W]
exterior illuminance [lx]
Interior daylight
level [lx]
artificial light demand [W]
Radiation [W] &
Exterior temperatureoccupant &
control module
Facade setting
Switching-/
dimming mode solar gain [W]
Irradiation [W]
(Facade)
daylight module
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Daylight calulation: based on 3-phase method
• division of flux transfer into 3 stages
• time consuming simulations duringpre-calculation
• fast calculation for single sky distributions
• factors stored in database
Daylight module
Sky
–
Facade
Facade-
system
Facade
–
Room
* * *=
result view matrix BSDF daylight matrix sky distribution
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Daylight moduleValidation
00:00 06:00 12:00 18:00 00:000
200
400
600
800
1000
1200
1400
1600
1800
2000
Time
Illu
min
ance [
lx]
DALEC
Measurement
Overcast sky
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Daylight moduleValidation
Clear sky
00:00 06:00 12:00 18:00 00:000
500
1000
1500
2000
2500
3000
3500
4000
4500
Time
Illu
min
ance [
lx]
DALEC
Measurement
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Concept
location &
climate datadaylight module
artificial light
modulethermal module
Energy demand:
heating + cooling + lighting [W]
exterior illuminance [lx]
Interior daylight
level [lx]
artificial light demand [W]
Radiation [W] &
Exterior temperatureoccupant &
control module
Facade setting
Switching-/
dimming mode solar gain [W]
Irradiation [W]
(Facade)
artificial light
module
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Lumen efficiency method for
• number of luminaires
• resulting average illuminance
Database with precalculatedfactors for normalized lumen output
Artificial light module
Bild: Zumtobel
Available light intensity
distributions
Direct
wide beam diffuse narrow beam
Indirect
wide beam diffuse
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Concept
location &
climate datadaylight module
artificial light
modulethermal module
Energy demand:
heating + cooling + lighting [W]
exterior illuminance [lx]
Interior daylight
level [lx]
artificial light demand [W]
Radiation [W] &
Exterior temperatureoccupant &
control module
Facade setting
Switching-/
dimming mode solar gain [W]
Irradiation [W]
(Facade)
thermal
module
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Dynamic thermal model
• EN ISO 13790
• default values
Input
• weather data
• artificial light (internal gains)
• solar heat gain (through facade)
Output
• energy demand for heating and cooling
• interior temperatures, overheating frequency
Thermal moduleEnergy balance
transmission-
losses
solar
gains
internal gains
(lighting, PC,
etc.)
ventilation
-losses
HVAC
capacity
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Thermal characterisation of the facade system
• angular dependency known for glazings
• unkown for daylight systems cannot be neglected
Database:
• angular dependent SHGC (145 Klems directions)
Input:
• SHGC of glazing at normal incidence
Thermal moduleFacade calculation
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Concept
location &
climate datadaylight module
artificial light
modulethermal module
Energy demand:
heating + cooling + lighting [W]
exterior illuminance [lx]
Interior daylight
level [lx]
artificial light demand [W]
Radiation [W] &
Exterior temperatureoccupant &
control module
Facade setting
Switching-/
dimming mode solar gain [W]
Irradiation [W]
(Facade)
occupant &
control module
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
Thermal control:
• radiation limit at façade (outside) façade setting
• interior temperature heating / cooling / night ventilation
DALEC controls mimicking occupants:
• luminance threshold at façade (inside) façade setting
• interior temperature window ventilation
Occupant & Control Module
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
IEA SHC Task 56Building Integrated Solar Envelope Systems for HVAC and Lighting
• Definition of reference office building
• Comparison of different building simulation tools
Comparative simulation studyReference office
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
DALEC vs. TRNSYS
David Geisler-Moroder Matteo D’Antoni
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
DALEC vs. TRNSYS
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
Heating Cooling LightingEne
rgy
de
ma
nd
[kW
h/(
m2yr
)]
Stuttgart
DALEC TRNSYS
David Geisler-Moroder @ Bartenbach
Matteo d‘Antoni@ EURAC
Annual energy balance
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
DALEC vs. TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Stuttgart - Heating
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Stuttgart - Cooling
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Stuttgart - Lighting
DALEC TRNSYS
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
Heating Cooling LightingEne
rgy
de
ma
nd
[kW
h/(
m2yr
)]
Stuttgart
DALEC TRNSYS
David Geisler-Moroder @ Bartenbach
Matteo d‘Antoni@ EURAC
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
DALEC vs. TRNSYS
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
Heating Cooling LightingEne
rgy
de
ma
nd
[kW
h/(
m2yr
)]
Stockholm
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Stockholm - Heating
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Stockholm - Cooling
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Stockholm - Lighting
DALEC TRNSYS
David Geisler-Moroder @ Bartenbach
Matteo d‘Antoni@ EURAC
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
DALEC vs. TRNSYS
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
Heating Cooling LightingEne
rgy
de
ma
nd
[kW
h/(
m2yr
)]
Rome
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Rome - Heating
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Rome - Cooling
DALEC TRNSYS
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Ene
rgy
de
ma
nd
[kW
h/(
m2m
o)]
Rome - Lighting
DALEC TRNSYS
David Geisler-Moroder @ Bartenbach
Matteo d‘Antoni@ EURAC
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Combined thermal and lighting simulation of envelope systems through a fast pre-design software IEA SHC Solar Academy , 18.09.2019
• Comparison with other simulation tools ongoing
• Application for comparisons of the solutions for envelope-integrated, solar facade
IEA SHC Task 56Building Integrated Solar Envelope Systems for HVAC and Lighting
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
Qheat Qcool Qinf Qvent Qtrans Qgint Qsol
ROME
EP TRN SIM_UIBK SIM_UNIBO DAL MOD
Paper BS 2019, Roma:
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Acknowledgments
The Austrian participation in the IEA SHC Task 56 "Building Integrated Solar Facades for Ventilation, Heating, Cooling, Air Conditioning and Lighting" is part of the IEA research cooperation and is funded by the Federal Ministry of Transport,
Innovation and Technology
„BODYBUILD – Boosting Daylight Utilization in Buildings” financed by the Federal Ministry of Austria for Digital and Economic Affairs,
managed by theAustrian Research Promotion Agency FFG
is gratefully acknowledged.
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