Schlaich Bergermann und Partner
ISES 2003
Göteborg, June 15-19, 2003
Thomas Keck and Wolfgang Schiel
EnviroDish and EuroDishSystem And Status
Schlaich Bergermann und Partner
The EuroDish Project
Main objectives:Preparation of market introductionErection of country reference systems
Partners:SBP: Project leader and system designSOLO: Stirling engineK+S: Control systemMERO: Concentrator, turntable, erectionDLR/PSA: testing and evaluation
Sponsor:EC under Joule III
Schlaich Bergermann und Partner
Dish Stirling Principle
Solar radiation
Stirling
Concentrator
Tracking
Receiver
Generator
Ray pattern
Receiver
Schlaich Bergermann und Partner
Dish Stirling Status: 10 kW dish Stirling System at PSA
Schlaich Bergermann und Partner
EuroDish Design
1 Concentrator shell2 Stirling support
structure3 Stirling unit4 Elevation drive rail5 Azimuth drive rail6 Foundation7 Azimuth motor8 Switch case9 Turntable
10 Ring truss11 Elevation bearing
Schlaich Bergermann und Partner
FEM Analysis of new Segmented (12) Concentrator Design
Schlaich Bergermann und Partner
EuroDish Facet fabrication:12 segments of glass fibre reinforced resign
Master Pattern Heating elements
Stiffening ribs on mould rear side Attaching glass mirrors
Schlaich Bergermann und Partner
EuroDish Concentrator Erection
Mounting of segments
to ring truss
Schlaich Bergermann und Partner
EuroDish Motion Controller
Schlaich Bergermann und Partner
SOLO Stirling 161
Schlaich Bergermann und Partner
Two Euro Dish units in Operation at PSA/Spain
Schlaich Bergermann und Partner
EuroDish Test Results
-150 -100 -50 0 50 100 150
-150
-100
-50
0
50
100
150
Incident Flux [kW/m2]
X Axis [mm]
Y A
xis
[mm
]
1.2E4 -- 1.3E4
1.1E4 -- 1.2E4
1E4 -- 1.1E4
9000 -- 1E4
8000 -- 9000
7000 -- 8000
6000 -- 7000
5000 -- 6000
4000 -- 5000
3000 -- 4000
2000 -- 3000
1000 -- 2000
0 -- 1000
-150 -100 -50 0 50 100 150
-150
-100
-50
0
50
100
150
Incident Flux [kW/m2]
X Axis [mm]
Y A
xis
[mm
]
1600 -- 1700
1500 -- 1600
1400 -- 1500
1300 -- 1400
1200 -- 1300
1100 -- 1200
1000 -- 1100
900.0 -- 1000
800.0 -- 900.0
700.0 -- 800.0
600.0 -- 700.0
500.0 -- 600.0
400.0 -- 500.0
300.0 -- 400.0
200.0 -- 300.0
100.0 -- 200.0
0 -- 100.0
Schlaich Bergermann und Partner
EuroDish Test Results
0
1
2
3
4
5
6
7
8
9
10
0 200 400 600 800 1000
Solar Insolation DNI (W/m²)
Net
Pow
er (k
W)
Schlaich Bergermann und Partner
EuroDish Test Results
44,8 kW42,1 kW
39,6 kW
33,6 kW
10,8 kW 9,8 kW 9,5 kW
0,0
5,0
10,0
15,0
20,0
25,0
30,0
35,0
40,0
45,0
50,0
Solar 1
00%
Reflec
tivity
Interc
ept
Receiv
er
Stirling
Genera
torPara
sitics
Pow
er in
KW
100%
94%
88%
75%
24%
22%
21%
Schlaich Bergermann und Partner
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
Pow
er [k
W] a
nd y
early
ene
rgy
prod
uctio
n [M
Wh/
unit]
0.0%
5.0%
10.0%
15.0%
20.0%
25.0%
30.0%
35.0%Yearly energy production at 2800 W/m²/a
Max. powerAverage system efficiency
Peak system efficiency
25.3 MWh/a 25.3 MWh/a26.5 MWh/a
28.2 MWh/a29.6 MWh/a
31.1 MWh/a
10 kW 10 kW 10 kW 10.4 kW 10.8 kW 11 kW
19.9%
15.9%
25.2%
19.6%
DISTAL 2 EuroDish 100 /year 1‘000 /year 3‘000 /year 10‘000 /year
Technology Expectations / Learning Curve
Schlaich Bergermann und Partner
Schlaich Bergermann und Partner, Stuttgart
Levelized Electricity Cost:Dish-Stirling vs. Diesel generators
Dish - Stirling (medium
production rate)
Diesel generator sets @ selected fuel costs
Dish - Stirling(high
production rate)
Dish - Stirling (low
production rate)
Leve
lised
Ele
ctric
ity C
ost i
n €/
kWh
fuel costof 0.25 €/litre
LEV of Dish-Stirling with increasing production rate FuelMaintenance Replacement/OverhaulInitial Equipment
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
fuel costof 0.5 €/litre
fuel cost of 0.75 €/litreYearly solar insolation of 2000 kWh/m²/a DNI
Yearly solar insolation of 2800 kWh/m²/a DNI
Schlaich Bergermann und Partner
Outlook: BMU Project
Objectives: Further cost reduction and preparatory steps for market introduction.
Project Partner:SBP: System development SOLO: StirlingK+S: Remote controlMERO: Fabrication and erectionDLR: Testing and operation
Schlaich Bergermann und Partner
BMU Project: Working packages
WP 1: Preparing series production
WP 2: Operation of the two units in Spain
WP 3: Erection of Country Reference
Systems