Silicone based HTF in parabolic trough applications –from lab to … 10...
Transcript of Silicone based HTF in parabolic trough applications –from lab to … 10...
![Page 1: Silicone based HTF in parabolic trough applications –from lab to … 10 03_SolarPACES_final.pdf · 2018. 11. 6. · October 3 rd 2018, SolarPACES Erich Schaffer, Wacker Chemie AG](https://reader035.fdocuments.in/reader035/viewer/2022071416/6112fd341ee4f8185029ae41/html5/thumbnails/1.jpg)
October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
CREATING TOMORROW`S SOLUTIONS
Silicone based HTF in parabolic trough applications – from lab to loop
2018 10 03, SolarPACES
Erich Schaffer, Wacker Chemie AG
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Content
� Introduction Wacker Chemie AG
� HELISOL® 5A: chemical and physical parameters
� HELISOL® 5A: operational safety
� HELISOL® 5A: USP´s & Proof of Concept
![Page 3: Silicone based HTF in parabolic trough applications –from lab to … 10 03_SolarPACES_final.pdf · 2018. 11. 6. · October 3 rd 2018, SolarPACES Erich Schaffer, Wacker Chemie AG](https://reader035.fdocuments.in/reader035/viewer/2022071416/6112fd341ee4f8185029ae41/html5/thumbnails/3.jpg)
October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Wacker Chemie AG
� Founded in 1914 by Dr. Alexander
Wacker
� Headquartered in Munich
WACKER Group (2017)
� Sales: €4.92 billion
� EBITDA: €1,01 million
� R&D: €153 million
� Investments: €327 million
� Employees: 13,811
WACKER at a Glance
Sales 2017: €4.92 bn
60% of Sales Outside Europe
3%
45%
25%
23%
4%
WACKER SILICONES
WACKER POLYMERS
WACKER POLYSILICON
WACKER BIOSOLUTIONS
Others
17%
23%
38%
5% Germany
Europe excl. Germany
Americas
Asia
ROW17%
![Page 4: Silicone based HTF in parabolic trough applications –from lab to … 10 03_SolarPACES_final.pdf · 2018. 11. 6. · October 3 rd 2018, SolarPACES Erich Schaffer, Wacker Chemie AG](https://reader035.fdocuments.in/reader035/viewer/2022071416/6112fd341ee4f8185029ae41/html5/thumbnails/4.jpg)
October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Content
� Introduction Wacker Chemie AG
� HELISOL® 5A: chemical and physical parameters
� HELISOL® 5A: operational safety
� HELISOL® 5A: USP´s & Proof of Concept
![Page 5: Silicone based HTF in parabolic trough applications –from lab to … 10 03_SolarPACES_final.pdf · 2018. 11. 6. · October 3 rd 2018, SolarPACES Erich Schaffer, Wacker Chemie AG](https://reader035.fdocuments.in/reader035/viewer/2022071416/6112fd341ee4f8185029ae41/html5/thumbnails/5.jpg)
October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
New HTF needed to break the 400°C temperature barrier
Benchmark HTF� Biphenyl-Diphenyloxide (BP/DPO)
� Max. process temp.: 400°C
� Freeze point: 12°C
HTF requirements
� High thermal stability
� Good heat transfer
� Low freeze point
� Low vapor pressure
� No critical degradation products
� Low fire risk
� Low cost
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
BP/DPO*
� 25 - 28% BP, 72 - 75% DPO
(Diphyl® , Dowtherm® A, Therminol® VP-1)
HELISOL® 5A shows advantages over BP/DPO
HELISOL® 5A
� Low viscosity polydimethylsiloxane,
� Multi-component mixture of molecules
Biphenyl; Diphenyl Diphenylether
� Working temp.: 60°C bis 395°C
� Freezing point: 12ºC
� Vapor pressure (400 °C): 11 bar
� Self ignition temp.: 599°C
� Working temp.: −40°C to 425°C
Pour Point: −65ºC
No freeze protection
� Vapor pressure (400 °C): 16 bar
� Self ignition temp.: 367°C
� Lower H2-formation
� No Fouling*BP/DPO (Biphenyl/Diphenyloxid)
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
HELISOL® development - from Lab to Loop
20122011 2014 2015 20162013 2018 2019 20202017
Pre-Assessment
HELISOL® 5A
higher thermal stability
no freezing
lower hydrogen formation
*TRL = technology readiness level
multigram scale
aging kinetics (autoclave +
oven)
degradation / compatibility
Lab-Scale (TRL* 4)
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
HELISOL® development - from Lab to Loop
20122011 2014 2015 20162013 2018 2019 20202017
Pre-Assessment
Si-HTF(BMWI)
HELISOL® 5A
higher thermal stability
no freezing
lower hydrogen formation
HTF volume 0.5 m3
operation parameters:
� 300°C, 15 bar
Technical-Scale (TRL 5)
*TRL = technology readiness level
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
HELISOL® development - from Lab to Loop
20122011 2014 2015 20162013 2018 2019 20202017
Pre-Assessment
Si-HTF(BMWI)
SITEF(SolarEra.NET)
HELISOL® 5A
higher thermal stability
no freezing
lower hydrogen formation
HTF volume 8 m3
Proof of Concept
� 1200 h solar
� up to 450°C, 23 bar
Loop-Scale (TRL 7)
*TRL = technology readiness level
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
HELISOL® development - from Lab to Loop
20122011 2014 2015 20162013 2018 2019 20202017
Pre-Assessment
Si-HTF(BMWI)
SITEF(SolarEra.NET)
SIMON(SolarEra.NET)
HELISOL® 5A
higher thermal stability
no freezing
lower hydrogen formation
HELISOL® XA lower vapor pressure
useable for existing plants
continuation
HTF volume 8 m3
Proof of Concept
� 1200 h solar
� up to 450°C, 23 bar
Loop-Scale (TRL 7)
*TRL = technology readiness level
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
HELISOL® 5A (Loop-Scale)0
5
10
15
20
0 30 60 90 120 150 180 210 240 270 300 330 360
Vis
cosity
/ m
Pas
Time / Days
Thermal Stability Evaluation
0
5
10
15
20
0 30 60 90 120 150 180 210 240 270 300 330 360
Vis
cosity
/ m
Pas
Time / Days
Thermal Stability Evaluation
425°C
425°C
400°C
HELISOL® 5A (Lab-Scale)BP/DPO
� lab-scale degradation and life-time analysis
Lab-Scale Thermal Stability Evaluation
Protarget AG
PSA
RoyalTech
� confirmation of data values at loop-scale
(test facilities in China / Spain)
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
What is the temperature limit of HELISOL® 5A?degra
dation indic
ato
r
time in years
425°C
430°C
1-2% exchange/a
3% exchange/a
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
0,0
5,0
10,0
15,0
20,0
25,0
30,0
35,0
0 500 1000 1500 2000 2500 3000
H2
in µm
ol/g
time in hours
HELISOL® 5A offers a lower long term hydrogen formation
BP/DPO (400°C)
HELISOL®5A (425°C)
HELISOL®5A (400°C)
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
HTF reworking- and gas separation concept easy to apply
Gas Separation Concept
� Degradation products:
H2, CH4, C2H6, Silane
� Flashing partial condensation refeed
Reworking Concept
� Viscosity is kept constant via HTF exchange
� No Ullage system needed
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Content
� Introduction Wacker Chemie AG
� HELISOL® 5A: chemical and physical parameters
� HELISOL® 5A: operational safety
� HELISOL® 5A: USP´s & Proof of Concept
![Page 16: Silicone based HTF in parabolic trough applications –from lab to … 10 03_SolarPACES_final.pdf · 2018. 11. 6. · October 3 rd 2018, SolarPACES Erich Schaffer, Wacker Chemie AG](https://reader035.fdocuments.in/reader035/viewer/2022071416/6112fd341ee4f8185029ae41/html5/thumbnails/16.jpg)
October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Spray Ignition tests with aged HTF (TÜV) shows no disadvantage of HELISOL® 5A
� BP/DPO: fire at 2-3m distance � HELISOL® 5A: fire at 1m distance
Spray ignition test: ISO 15029
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
No self ignition of HELISOL® 5A at small scale Release Tests
� 1/4” – 430 °C 15 bar -> No self-ignition
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Setup� Fast opening / closing release valve (0.2 sec)
� Different nozzles: ¼“, 1“, 2“
Full Scale Release Test (at PSA)
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
2“ release test performed in May 2018 at the PSA
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Full Scale Release Test - Temperature Contribution
IR Camera
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Content
� Introduction Wacker Chemie AG
� HELISOL® 5A: chemical and physical parameters
� HELISOL® 5A: operational safety
� HELISOL® 5A: USP´s & Proof of Concept
![Page 22: Silicone based HTF in parabolic trough applications –from lab to … 10 03_SolarPACES_final.pdf · 2018. 11. 6. · October 3 rd 2018, SolarPACES Erich Schaffer, Wacker Chemie AG](https://reader035.fdocuments.in/reader035/viewer/2022071416/6112fd341ee4f8185029ae41/html5/thumbnails/22.jpg)
October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
*LCOE: Levelized cost of electricity, **CRF: Capital recovery factor, ***TES: Thermal Energy Storage
Revenue (electricity sold)
+ Working temperature: - 40°C to 425 °C
CAPEX
+ Reduced TES*** cost
+ No freeze protection
+ Filling at any time (temperature independent)
+ No Ullage needed for viscosity control
- Higher vapor pressure to be considered
HELISOL® 5A: Up to 5 % LCOE* Reduction Potential
OPEX
+ No recirculation for freeze protection
+ Maintenance at any time
+ Less pump energy (low viscosity)
+ Shorter start up period
+ Lower degradation/exchange rate at same
temperature
+ Lower H2 generation
+ No fouling
LCOE = CRF
∗∗ ∗ ∑ CAPEX�
� + ∑OPEXYear
��
RevenueYear
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Proof of Concept for HELISOL® 5A at independent Demo-Loops
90% PU
PSA: PROMETEO Loop
Royal Tech (CN)
PSA: (2016-2019)
� ~1300h solar operation
� Proof of Concept at 425°C / 520h
� overheating: 435°C to 450°C / 50h
Inner Mongolia (CN): Royal Tech Demo-Loop
� Operating at 425°C since April 2016
� ~1800h above 400°C
� ~850h between 400°C to 430°C
� overheating up to 470°C
� 50 MW YUMEN (China) project to be realized with
HELISOL® 5A
by courtesy of Royal Tech
PSA
by courtesy of Ciemat
PSA: Plataforma Solar de Almeria
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
Summing up
� HELISOL® 5A offers extremely broad operating temperature range
� Up to 5 % LCOE reduction potential
� Proof of Concept done - HELISOL® 5A is used already as HTF
� Strategic partnership agreement with Royal Tech (CN) for 50MW YUMEN project
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October 3rd 2018, SolarPACES
Erich Schaffer, Wacker Chemie AG
With HELISOL® 5A it is possible to realize a parabolic trough plant with a working temperature above 400°C
The authors would like to thank the German Federal Ministry of Economic Affairs and Energy for the funding of the projects Si-HTF, SITEF and SIMON and their cooperation partners