CSP Today, Sevilla, 2014 Reliable Receiver Tube Supplier November 13 th, 2014 George Dou, Business Development Director Royal Tech CSP Limited 2013.9.27
Agenda Company Profile Advanced technology in receiver tubes How to reduce LCOE R&D pipeline 1
Agenda Company Profile Advanced technology in receiver tubes How to reduce LCOE R&D pipeline 2
Company Profile 1. Established in 2009, Changzhou, Near Shanghai 2. R&D for 5 years 3. Manufacturing plant, annual capacity 50,000-80,000 PCS Receiver tube 3
Company Profile > Receiver development UVR 2010 UVR 2012 UVR 2014 2010 2012 2014 1 st generation Receiver tubes UVR 2010 @tested in Changzhou 100m test LOOP 2 nd generation Receiver tubes UVR 2012 @tested by CSPS&DLR in 600m inner Mongolia demo-loop; German DLR QUARZ 3 rd generation Receiver tubes UVR 2014 @tested by German DLR QUARZ; CIEMAT&PSA 4
Company Profile > Applications RTUVR Receiver Parabolic Trough Lineal Fresnel 5
Agenda Company Profile Advanced technology in receiver tubes How to reduce LCOE R&D pipeline 6
Advanced technology > PVD Coating PVD Selective absorber coating Different layer stack design for 400 & 550 applications Specialized coater ensures the uniformity of the coating Continuous coating process increases the manufacturing efficiency 7
Advanced technology > GTMS Innovative sealing technology Innovative sealing process High vacuum stability Straight pulling traction >16 KN Thermal shock test proved Automatic sealing process 8
Advanced technology > AR Coating Glass tube Anti-Reflective coating Solar application borosilicate glass Double side dip-coating Sol Gel technology Environment friendly Long durability Without AR coating With AR coating 9
Agenda Company Profile Advanced technology in receiver tubes How to reduce LCOE R&D pipeline 10
Generating capacity/kwh How to reduce LCOE > Reduce LCOE For a Parabolic Trough /Linear Fresnel solar power plant: LCOE = CAPEX + n i=1 n i=1 OPEX t 1 + r t Electricity Generated t 1 + r t To cut down LCOE means: Energy Yield OPEX Degradation CAPEX???Kwh??? 1 5 10 15 20 25 year 11
How to reduce LCOE > Increase energy yield Goal: Higher absorptance@>95.5% Lower emittance @<10% Higher transmittance@>97% Lower heat loss@<250w/m Higher performance Higher energy yield Approach: Thermal and optical performance measurements @DLR QUARZ Inline thermal and optical performance measurements @CIEMAT&PSA Optical performance measurements of coatings @Fraunhofer ISE New generation HCE(UVR 2014) model will be available in NREL SAM library. 12
DLR QUARZ Tests Heat Loss Test Optical Efficiency Test The measurements show a specific heat loss of receivers < 265 W/m at 400 absorber temperature The optical efficiency of the receivers is measured to η opt, rec 103 % η opt, rec (DLR 70-1,RT) 13
DLR QUARZ Tests 14 *Data from DLR QUARZ test report
DLR QUARZ Tests Table 6: optical performance measurement results, with the optical efficiency η opt,rec ID η opt,rec inη opt,rec (DLR70-1,RT) Comment 00000647 1.026 00000664 1.027 *Data from DLR QUARZ test report 15
CIEMAT PSA Inline Testing 75m HTF test loop 18 Receiver tubes under testing in PSA Thermal loss and optical efficiency tests 16
Fraunhofer ISE coating tests 17
How to reduce LCOE > Reduce OPEX Goal: Reduce the breakage of receiver tubes Extend quality guarantee period Lower OPEX Inner Mongolia Demo-LOOP: 144 UVR 2012 receiver tubes LAVATHERM ST heat transfer fluid inside Operating under 300-400 Environment Temperature up to -38 Wind speed up to 28m/s Operating after 18 months No leakage No breakage 18
How to reduce LCOE > Reduce OPEX Inner Mongolia Demo-LOOP Technology Parabolic trough Status Operational Start operation June 2013 Climatope The annual average temperature : 5.8 Lowest temperature in winter : -35 Windy : max 26m/s Sandy Solar-Field Inlet Temp 290 Solar-Field Outlet Temp 390 19
How to reduce LCOE > Reduce OPEX Inner Mongolia Demo-LOOP test results *Data from CSP service test report 20
How to reduce LCOE > Lifetime stability Goal: Stability of absorber coating Stability of GTMS Stability of bellows Stability of Anti-reflection coating Approach: Aging test of receiver tubes@dlr QUARZ Overheating test Thermal cycling test Bellow fatigue test Lifetime stability of electricity generation Absorber coating Aging test @ Fraunhofer ISE More tests will be applied in the future Condensation Test ISO 6270-2 Taber Abrasor Test 21
DLR QUARZ Aging tests Overheating test/thermal cycling test 480 for 1000h 200-480 for 100 cycles No changes in heat loss and optical efficiency Bellow fatigue test Over 20000 cycles 24h waiting period No leakage 22
How to reduce LCOE > Reduce CAPEX Goal: Decrease the cost of receiver tubes Reduce initial investment Reduce CAPEX Approach: Capable to produce absorber coating machine, Cut down manufacturing plant investment for receiver factory localization Innovative sealing method, 3.3 borosilicate glass can be used in GTMS sealing mass production at low cost Rapid expansion of production capacity Financial support from Chinese Policy Banks to save the initial investment for out customer 23
Agenda Company Profile Advanced technology in receiver tubes How to reduce LCOE R&D pipeline 24
R&D pipeline Lager dimension receiver tubes to fit the larger collectors(l Aperture >7m) Further optimized absorber coating suitable for higher temperatures Receiver length up to 5.5m with higher effective length and less welding work New generation receiver design and raw material certification suitable for thermal oil(450 ) and molten salt(550 ) Further reduction of LCOE 25
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