Werner Weiss
AEE - Institute for Sustainable Technologies (AEE INTEC)
A-8200 Gleisdorf, Feldgasse 19
AUSTRIA
BUILDING INTEGRATION OF SOLAR COLLECTORS
On Roof Installation
Flat plate collectors – ON ROOF
Source:Wagner &Co /ESTIF
On Roof Installation - Piping
Pipe penetration through the roof
Flat plate collectors – ROOF INTEGRATED
Flat plate collectors – ROOF INTEGRATED
Source: Conergy AG /ESTIF
Flat plate Collectors – Roof Integrated
Source: S.O.L.I.D., Austria
Flat plate Collectors – Roof Integrated
Source: S.O.L.I.D., Austria
Flat plate Collectors – Roof Integrated
Flat plate Collectors – Roof Integrated
Source: Teufel & Schwarz, Austria
Flat plate Collectors – Roof Integrated
Source: Teufel & Schwarz, Austria
Evacuated Tube Collectors – Building Integrated
Evacuated Tube Collectors – Building Integrated
Evacuated Tube Collectors – Building Integrated
Evacuated Tube Collectors – Building Integrated
Evacuated Tube Collectors – Building Integrated
Evacuated Tube Collectors on Flat Roofs
Source : Fraunhofer ISE
Evacuated Tube Collectors on Flat Roofs
Flat plate collectors – Installation on a flat roof
Source: Solution Solartechnik
Source: Himin, Jinan College of Transportation
Evacuated tube collectors
Flat plate collectors – Installation on a flat roof
Distance between the collector rows (calc)
a e
LH
D
Building Integration
Source: S.O.L.I.D.
Building Integration
Source: Himin
Facade Integration in a Historical Building Design Study
Pre-manufacturing
Source: gapsolution
Prefabricated Facade Elements for Retrofit
Prefabricated Facade Elements for Retrofit
Facade Integration of Solar Collectors
Multy functional façade
Arch. Praschl
Facade Integration of Solar Collectors
Meteonorm Data, Graz
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
20 40 60
Solar fraction [%]
Co
llec
tor
are
a [m
²/m
²]
DHW DHW and Space Heating
Necessary Increase of Collector Area compared
to Roof Installation (45°)
Test Façade 1
Timber construction
55 m² collector area, 3570 l space heating storage tank, 500 l dhw tank
Wall Construction
50 mm
160 mm
40 mm
Vapour barrier: sd = 0,8 m (airtight, open for vapour)
Temperature and humidity sensors
Inside
Outside
Timber construction: U-value of the wall
-0,06
-0,04
-0,02
0,00
0,02
0,04
0,06
0,08
0,10
0,12
0,14
0,16
0,18
static U-
value
Sep 01 Okt 01 Nov 01 Dez 01 Jan 02 Feb 02
[W/m
²k]
Monthly effective U-values
Test Façade 2: Massive Wall
25 cm highly porous brick
back wall of collector, wood, 6 mm
Temperature and humidity sensor
outside
Inside
Wall Construction
-0,10
-0,05
0,00
0,05
0,10
0,15
0,20
0,25
0,30
0,35
0,40
0,45
static U-value Nov 01 Dez 01 Jan 02 Feb 02
[W/m
²k]
Massive construction: U-value of the wall
Monthly effective U-values
Effect of Snow Reflection?
Irradiation, Snow Reflection
Meteonorm Data, Graz
+5% +20%
, Snow , Snow
Colored Absorbers ?
Survey amongst Architects
85
15
0
10
20
30
40
50
60
70
80
90
100
[%]
Any Colour Black
Colored Absorbers
Colored Absorbers
Simulation Results Colored Absorber, Solar Fraction
60,1 58,6
53,1
63,464,1
68,3
0
10
20
30
40
50
60
70
80
90
100
selektive
Schicht
Solarlack schwarz
eloxiert
grün Farblack rot Farblack blau
Pulverbesch.
Dec
ku
ng
sg
rad
[%
]
selektive Schicht
Solarlack
schwarz eloxiert
grün Farblack
rot Farblack
blau Pulverbesch.
Sola
r fr
action [
%]
Selective
coating
Solar
lacquer
Black
anodized
Green
lacquer
Red
lacquer
Blue
powder
coating
Selective coating
Solar lacquer
Black anodized
Green lacquer
Red lacquer
Blue powder coating
Colored Glass
Source: EPFL Laussanne, CH
Colored Glass
Source: EPFL Laussanne, CH
Colored Glass
Source: Maria C. Munari Probst, EPFL Laussanne, CH
Uncovered Metal Absorber
Source: Maria C. Munari Probst, EPFL Laussanne, CH
Source: Solution
Space Heating of Factory Buildings