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Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
Solar Thermal Reflector Comparison
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Solar Thermal Reflector Comparison

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Presentation for The Comparison of Different type reflector materials using with Small Solar Thermal Dish Stirling 10 kW Power Plant for Thailand Soft-land and Poor Insolation Nature

Presentation for The Comparison of Different type reflector materials using with Small Solar Thermal Dish Stirling 10 kW Power Plant for Thailand Soft-land and Poor Insolation Nature

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  • 1. The Comparison of Different type reflectormaterials using with Small Solar Thermal DishStirling 10 kW Power Plant for Thailand Soft Land and Poor Insolation Nature. The 12th International Stirling Engine Conferences 2005 Durham University, School of Engineering United Kingdom September 7 – 9, 2005 Eng’r Suravut, SNIDVONGS Naraesuan University, Phitsanulok, Thailand. ASIAN RENEWABLE ENERGY DEVELOPMENT AND PROMOTION FOUNDATION AREF ISEC
  • 2. Research By: Eng’r Suravut, SNIDVONGS, EITSupervisor: Dr. Sirinuch, CHINDARUKSACo Supervisors: Dr. Chavalit, THISAYAKORN, IEEE, EIT Dr. Wattanapong, RAKWICHIAN Dr. Vichit, YAMBOONRUNG, PTT Dr. Mathanee, SANGUANSERMSRI09/08/2004 AREF ISEC JW0022 2
  • 3. ASIAN RENEWABLE ENERGY DEVELOPMENT AND PROMOTION FOUNDATION AREFObjectives1. Promote renewable energy to people by set up exhibition, training, explaining.2. Support researchers, students, poor people for educations, experiments, researchers and developments.3. Not involved with politics.4. Corporate with foundations inside and outside Thailand. 211/2 V.S.S Bldg, Ratchadaphisek Rd., Din-Daeng, Bangkok, 10310, Thailand email airscan@turbo.cscoms.com Din- Daeng, Tel 662 276 7908-9 Fax 662 276 7913 7908-09/08/2004 AREF ISEC JW0022 3
  • 4. Contents 1. Introduction 2. Material Characteristics 3. Reflectance Value 4. Reflector Product Pictures 5. Solar Dish Pictures 6. Summary09/08/2004 AREF ISEC JW0022 4
  • 5. Introduction This paper is one part of the dissertation development research project on theSolar Thermal Dish Stirling system for a 10 kW power plant with lead acid batterystorage, named “Siam Solar Dish I” research project. The purpose of this research project activities is to select reflectors which aresuitable for Concentrating Solar Power in Thailand. The good solar reflectors must have the following characteristics. 1. Light weight 2. Durable for wind, moisture, deflection, high and low temperature. 3. Low construction cost, less than 500 B/m2 or 12.5 $/m2 (1 US $ = 40 Baht March, 2005). 4. Low reflector cost, less than 20 B/m2 or 0.5 $/m2 (1 US $ = 40 Baht March, 2005). 5. Flexible. 6. Low reflection loss. 7. Reflect more than 90 % in wavelength 700 to 1000 nm. 8. Easy to clean. 9. High impact not easy to break. 10. Life more than 30 years. 11. Ultra violet resists. 09/08/2004 AREF ISEC JW0022 5
  • 6. Table 1. Characteristics of Solar Reflector Materials 1/4 Product Name Manufacture Materials Work Temp UV Corrosiv Conductivity Adhesive C Resist eVM2000 3M Polymeric Film, Non 125 Non Non Non 3M #M467MF Metal Yes + $ 0.3SA-85 3M Aluminum, Acrylic Yes Yes Non 3M #M467MFECP-305 3M Silver, Aluminum Acrylic 125 Non Non Yes 3M #M467MFAcrylic Mirror Silver, Acrylic Non Non NonMIRO-SUN Alanod Aluminum, Acrylic Non Yes YesReflect Tech Anod Aluminum, Acrylic Non Yes YesReynolds Alcan Aluminum 500 Non Yes YesAstro Aluminum 85 Non Yes YesClear Dome Metalized Products Aluminum, Polyethylene 100 Yes Non Non 3M Contact CementHeat Shield I Metalized Products Aluminum, Polyethylene 100 Yes Non Non 3M Contact CementHeat Shield II Metalized Products Aluminum, Polyethylene 100 Yes Non Non 3M Contact Cement 09/08/2004 AREF ISEC JW0022 6
  • 7. Table 1. Characteristics of Solar Reflector Materials 2/4Product Name Manufacture Materials Work UV Corrosive Conductivit Adhesive Temp Resist y CPlexiglas Plexiglas with Mirror Non Non NonMirro Flex Thermoplastic, Silver, Gold, Brass, Non Non Non etc.Mylar Aluminum Mylar Non Yes Yes EpoxySpin Off Metallized Aluminum Polyethylene Non Non Non ProductsIBAD Polymer, Copper, Silvered, Alumina Yes Yes NonKraft Paper Ra Bar Products Aluminum Non Non Non 3M Spray IncRoche John 3m SA-85Mirror Polished Stainless Yes Non YesPolishedStainlessCERMET Sun Select Ceramic Metallic Coating Layer Yes Yes Yes 09/08/2004 AREF ISEC JW0022 7
  • 8. Table 1. Characteristics of Solar Reflector Materials 3/4 Product Name Reflective Emissive Range Drop Off Cost/ft2 Available % % nm $VM2000 98 2 Visible Light 700 1.25 Developed & TestingSA-85 98 2 Visible Light 2.40 No longer availableECP-305 97 3 Visible Light Light FixtureAcrylic Mirror 95 5 Visible Light 5.00 Miro-SunMIRO-SUN 95 5 Visible Light 700 2.15 AvailableReflect Tech 92 8 Visible Light 700 1.50 DevelopmentReynolds 86 14 Visible Light 0.05 Solar Cook, FoodsAstro Foil 97 3 Visible Light 0.80 Insulator MaterialClear Dome 97 3 Visible Light 1.00 Solar OvenHeat Shield I 97 3 Visible Light 0.85 Solar Oven, Heat ShieldHeat Shield II 97 3 Visible Light 0.75 Solar Oven, Heat Shield 09/08/2004 AREF ISEC JW0022 8
  • 9. Table 1. Characteristics of Solar Reflector Materials 4/4 Product Name Reflective Emissive Range Drop Off Cost/ft2 Available % % nm $Plexiglas 90 10 Visible Light 5.00 MirrorMirro Flex 80 20 Visible Light 5.00 DecorativeMylar 97 3 Visible Light 3.00 Not availableSpin Off 97 3 Visible Light NASAIBAD 97 3 Visible Light NRELKraft Paper 90 10 Visible Light 0.04 Solar Cook, Heat Shield, Paper BackingRoche John 98 2 Visible Light Solar cookMirror Polished Stainless 50 50 Visible Light 2.00 DecorativeCERMET 95 5 Visible Light 700 2.15 Solar Tech, MIRO-SUN, Alanod 09/08/2004 AREF ISEC JW0022 9
  • 10. Table 2. Solar Weighted hemispherical reflectance Rs value of selected weathered samples Material Manufacture/ Supplier Rs (t=0) % Rs (t=0.5y) %Glass/ Silver 4 mm Falbeg (D) 93.8 93.8Glass/ Silver 1 mm Steinmuller (D) 94.0 93.5Glass/ Silver 1 mm Glaverbel (B)/ Hirtz(F) 94.6 94.6Miro 2 – 95 Alanod (D) 88.6 85.4Miro 3 – 95 Alanod (D) 91.1Anod Aluminium Solar Direct (D) 86.8 84.81000.90 Anofol (E)/ Metalloxid (D) 89.8 83.0ECP305+/ Aluminium 3M (US) 95.6 95.7ECP305+/ Glass 3M (US) 96.1 95.8Sunflex (Polymer/ Aluminium) HTC Solar (D) 86.9 < 80.0SA 85/Glass 3M (US) 88.1 88.1SA 85/Steel 3M (US) 88.2 88.1 (Outdoor exposure Koln)09/08/2004 AREF ISEC JW0022 10
  • 11. Table 3. Solar Weighted hemispherical reflectance Rs values of selected samples after accelerated weathering in OUV weather simulation Material Rs (t=0) % Rs (t=2000 h QUV) % Rs (t=4000 h QUV) % Glass/Silver 1 mm 94.6 94.7 94.5 Miro 2 – 95 88.6 88.1 88.2 ECP305+/ Glass 96.1 95.4 94.8 Sunflex (Polymer/Aluminium) 86.9 < 50.0 * - Sol-Gel coated Silver 95.5 94.0 * - Sol-Gel coated Aluminium 91.0 - - * reflective aluminium film totally removed 09/08/2004 AREF ISEC JW0022 11
  • 12. Reflector Product Pictures Alanod and Miro Sun Alcan Aluminium Solar Flex and Clear Dome Polycarbonate Mirror 3M VM2000 Reynolds Aluminum Acrylic Mirror Polyethylene Mirror09/08/2004 AREF ISEC JW0022 12
  • 13. Astro Foil Material Emittance Reflectance Concrete 0.90 0.10 Rusty Steel 0.80 0.20 White Paper 0.94 0.06 Wood 0.90 0.10 Aluminum Foil 0.03 0.9709/08/2004 AREF ISEC JW0022 13
  • 14. Solar Dish Drawing09/08/2004 AREF ISEC JW0022 14
  • 15. Solar Dish Drawing09/08/2004 AREF ISEC JW0022 15
  • 16. Solar Dish at Naraesuan University, Phitsanulok, Thailand 09/08/2004 AREF ISEC JW0022 16
  • 17. Solar Dish at Naraesuan University, Phitsanulok, Thailand 09/08/2004 AREF ISEC JW0022 17
  • 18. Solar Dish at Naraesuan University, Phitsanulok, Thailand 09/08/2004 AREF ISEC JW0022 18
  • 19. Solar Dish at Naraesuan University, Phitsanulok, Thailand 09/08/2004 AREF ISEC JW0022 19
  • 20. Summary 1. The purpose of this research is to select reflectors which are suitable for Thailand of Energy Concentrating Solar Power Program. 2. The goals are specula reflectance above 90 % for at least 10 years under outdoor service conditions and a large volume manufacturing cost of solar reflector structure less than 500 B/m2 (12.5 $/m2 )or reflector material only less than 20 B/m2 ($ 0.75 /m2). 3. The best candidate materials for Thailand such as MIRO-SUN should fit for Thailand environment and conditions.09/08/2004 AREF ISEC JW0022 20
  • 21. Questions / Answers Thank You09/08/2004 AREF ISEC JW0022 21

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