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ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE
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ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE

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Power Point Presentation for ANALYSIS AND COMPARISON ON THE PHOTO VOLTAIC VERSUS SIAM SOLAR DISH SYSTEM FOR IMPLICATION TO THAILAND SOFTLAND AND POOR SOLAR INSOLATION NATURE

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  • 1. Analysis and Comparison on The PhotovoltaicVersus Siam Solar Dish System for Implication to 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, SANGUANSERMSRI09/08/2005 AREF ISEC JW0021 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 7908-09/08/2005 AREF ISEC JW0021 3
  • 4. Contents 1. Introduction 2. Location and Physical Characteristic 3. Climate 4. Solar Radiation Data 5. System Specifications 6. Components Specifications 7. System Comparison 8. Pictures 9. Summary09/08/2005 AREF ISEC JW0021 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. Due to the sharp economic growth rate in Thailand for more than a few decadescontinuingly from the past, has thus forced Thailand’s electricity demand to climbvery sharply to the present. By the year 2010, it has been projected that close to35,000 MWt will be required to meet the eletricity needs of Thailand’s economy.This prediction has been prepared by Electrical Generating Authority of Thailand(EGAT). Presently, Thailand has installed an over all power plant capacity at 22,000MWt from year 1997 where Peak Demand were merely 17,000 MWt CurrentConsumption Increasing Rate forecasted by EGAT are to be: 1. Prediction during I.M.F period 4 %/yr 2. Actual demand during I.M.F period 8 %/yr 3. Prediction during sound economy 16 %/yr The Salawin Hydro Power Plant could be completed in the next 50 years underheavy investment problems encountered on both parties, Thailand and Burma. 09/08/2005 AREF ISEC JW0021 5
  • 6. Location and Physical Characteristics Thailand, centrally located in the Indochina Peninsula, is one of the most developed and wealthiest countries in Southeast Asia. It is bordered by Cambodia and Laos on the east, Laos and Myanmar on the north, Myanmar on the west and Malaysia and Gulf of Thailand on the south. It is bounded between 50 40’ and 200 30’ North latitudes and 900 70’ and 1050 45’ East longitudes (Fig. 1). The total area of Thailand is 513,115 sq. Kms. Physiographical, the country has been divided into six regions viz. Central plain, Southeast Figure 1. Map of Thailand coast, Northeast plateau, Central highlands,Source: Meteorological Department, Thailand North and West continental highlands and Peninsular Thailand. 09/08/2005 AREF ISEC JW0021 6
  • 7. Climate Thailand has a tropical monsoon climate; temperatures normally range from an average annual high of 38 ºC to a low of 19 ºC. Southwest monsoons that arrive between May and July (except in the South) signal the advent of the rainy season, which lasts into October. November and December mark the onset of the dry season. Temperatures begin to climb in January, and a hot sun parches the landscape. The dry season is shortest in the South because of the proximity of the sea to all parts of the Malay Peninsula. With only minor exceptions, every area of the country receives adequate rainfall, but the duration of the rainy season and the amount of rain vary substantially from region to region and with altitude. The Northeast experiences a long dry season, and its red, porous (laterite) soils retain water poorly, which limits their agricultural potential.09/08/2005 AREF ISEC JW0021 7
  • 8. Solar Radiation Data Latitude 14.08 N, Longitude 100.62 E Month Year Diffuse MJ/ m2 Direct MJ/ m2 Total MJ/ m2 Jun 2003 8.89 12.81 18.63 Jul 2003 8.34 10.26 16.22 Aug 2003 9.56 8.78 16.85 Sept 2003 9.44 6.81 16.00 Oct 2003 7.29 11.97 17.94 Nov 2003 6.16 15.87 19.66 Dec 2003 5.22 17.67 19.71 Jan 2004 5.96 13.31 17.27 Feb 2004 6.54 14.81 19.07 Mar 2004 8.21 12.46 19.07 Apr 2004 7.42 15.48 19.72 May 2004 7.90 9.67 15.90 Jun 2004 8.92 8.33 15.51 Jul 2004 10.02 8.94 17.47 Aug 2004 9.74 8.56 17.56 Sep 2004 8.74 7.61 15.77 Source:Meteorological Station, Energy Laboratory, Asian Institute of Technology, Thailand [8]09/08/2005 AREF ISEC JW0021 8
  • 9. Solar Insolation of Thailand 25 Diffuse Direct Total 20 15MJ/m2 10 5 0 Jun Jul Aug Sept Oct Nov Dec Jan Feb Mar Apr May Month 09/08/2005 AREF ISEC JW0021 9
  • 10. PARABOLIC DISH WITH 2 - AXISES TRACKER09/08/2005 AREF ISEC JW0021 10
  • 11. TEMPERATURE MORE THAN 600 C Temperature tested at focus point through a stagnation The parabolic dish easily reach the temperature 550 ºC or more. temperature test with no heat Source: AREF, Thailand, April 2003. Source: AREF, Thailand, April 2003.09/08/2005 AREF ISEC JW0021 11
  • 12. Solar Dish at Naraesuan University, Phitsanulok, Thailand09/08/2005 AREF ISEC JW0021 12
  • 13. Stirling Engine 10 kW at Naraesuan University, Phitsanulok, Thailand09/08/2005 AREF ISEC JW0021 13
  • 14. System Specifications Dish Structure Type Delta Truss Diameter (m) 8.4 Number of Sections 64 Maximum Wind Load (Km/hr) 160 Normal Working Wind Load (Km/hr) 65 Life Load (Kg/m2) 50 Service Load (Kg/m2) 15 Engine Load (Kg) 300 Foundation Type Concrete09/08/2005 AREF ISEC JW0021 14
  • 15. System Specifications Solar Concentrator Type Fixed focus facets Area 55 m2 Number of Facets 64 Reflective Surface 0.5 mm Aluminum MIRO-SUN Reflective < 95 % System Height (m) 10 Dish Diameter (m) 8.4 Focus 4m09/08/2005 AREF ISEC JW0021 15
  • 16. Stirling EngineType Double-Acting, Kinematics Stirling EngineWorking Gas Helium/ Nitrogen/ AirMax. Expansion space gas temp 600 C (+/- 5 C)Compression space gas temp 40 – 80 C (+/- 5 C)Thermal Efficiency 40 % Power Control Variable Pressure No. of Cylinders 4Means Pressure 0.25, 0.5, 0.7, 0.9 MPaMaximum Pressure 2.5 Mpa Engine Displacement, cc. 1300 x 4 Bore, mm. 150 Stroke, mm. 50 Speed, rpm 500 - 1500Cooling type Oil CoolingOutput Power 10.5 kWReceiver Direct Illumination09/08/2005 AREF ISEC JW0021 16
  • 17. Tracking System Tracking System H-Bridge 2 axis Power to Track 0.746 x 2 Kw Speed Control Mitsubishi Inverter Gear Ratio 1:7200 Motor speed 900 rpm Generator Type Asynchronous alternator Voltage 3 Ø 380 V 50 Hz Poles 6 R.P.M 900 Efficiency 95 % Power Generate 10 kW Solar Dish/Stirling System Average Solar Insolation in Thailand 500 W/m2 Availability (W/m2) Whenever the sun exceeds 200 Peak Power 10 kW Target Peak Efficiency 20 %09/08/2005 AREF ISEC JW0021 17
  • 18. System Characteristics and Specifications of ADDS Characteristics and Specifications Mod 1 Overall Diameter (m) 8.8 Focus (m) 5.448 Mirror projected area (m2) 64 Elevation Tracking range -20 to 84 degrees Elevation & Azimuth Drive Speed 38 degrees/min Tracking structure weight 1,275 kg Pedestal & Azimuth Drive Assy. 831 kg SOLO 161 Weight 455 kg* Foundation and (aperture) weight 3,320 kg (71.55 kg/m2) Operation Wind Up to 56 km/hr Operating Temperature Range -29 ºC to 50 ºC Operating Humidity 100 % Survival Wind any dish Attitude Up to 80.5 km/hr Survival Wind at stow position Up to 145 km/hr Survival humidity 100 % Site conditions Windy, Rain, Hot * Includes PCU and mounting facilities. Source: The Advanced Dish Development System Project, Proceeding of Solar Forum 2001, Solar Energy, April 21-25, 2001, Washington, DC.09/08/2005 AREF ISEC JW0021 18
  • 19. Component Specifications Descriptions Materials ReasonsPower Piston Aluminum Light weight, easy to machine, low pricePower Piston Seal Synthetic Stronger, Withstand friction, low price RubberPiston Rod Arc chrome Hardened, Withstand friction, reasonable Steel PricePower Piston Housing Stainless No Rust, High Pressure, easy to machine, low priceEngine Base Steel Easy to machine, very low priceSwash Plate Steel Easy to machine, very low price, strongEngine Shaft Steel Easy to machine, very low price, strongCooler Bronze Good heat transfer, reasonable priceDisplacer end Aluminum Light weight, easy to machine, low price09/08/2005 AREF ISEC JW0021 19
  • 20. Component SpecificationsDisplacer Stainless High Temperature, easy to machine, low priceDisplacer seal Teflon Low Temperature, good lubricate with out oilRegenerator Stainless High Temperature, easy to find, low priceDisplacer Housing Stainless High Temperature, easy to find, low priceHeater Stainless High Temperature, easy to find, low pricePiston Rod Seal Synthetic Stronger, Withstand friction, low price RubberSolar Cavity Stainless High Temperature, easy to find, low priceFly Wheel Steel Good mass, easy to find, low price09/08/2005 AREF ISEC JW0021 20
  • 21. Gross system output of the “Siam Solar Dish System” on December 2004, projected from a 4x 5 kW electric heater tests as data to predict for Solar test mode. Power Output VS Insolation 18 16 Power Output (kW) 14 12 10 8 6 4 Design Value 2 Test Value 0 0 250 500 750 1000 Solar Insolation (W/m2) Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 21
  • 22. Stirling Engine at AREF laboratory Source: AREF, Thailand, March 2005-03-3109/08/2005 AREF ISEC JW0021 22
  • 23. Actual construction costs for small solar thermal dish Stirling 10 kW system with lead acid battery. Descriptions Bht US $ Designing Fee 100,000.00 2,500.00 Foundation 250,000.00 6,250.00 Space Frame Structure 200,000.00 5,000.00 Reflector Material 60,000.00 1,500.00 Tracking System 150,000.00 3,750.00 Stirling Engine 400,000.00 10,000.00 Generator 10 kW 50,000.00 1,250.00 Control System 100,000.00 2,500.00 Lead Acid Battery 60 kW 150,000.00 3,750.00 Inverter System 10 kW 50,000.00 1,250.00 Wiring System 50,000.00 1,250.00 Total 1,560,000.00 39,000.00 /kWe 156,000.00 3,900.00 Notes: 1 US Dollar = 40 Baht, March 2005 Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 23
  • 24. Actual construction costs for single crystalline photovoltaic 10 kW systems with lead acid battery. Descriptions Bht US $ Designing Fee 100,000.00 2,500.00 Foundation 50,000.00 1,250.00 Steel Structure 200,000.00 5,000.00 Single Crystalline Photovoltaic 10 kW 2,000,000.00 50,000.00 Charge Controller System 150,000.00 3,750.00 Lead Acid Battery 60 kW 150,000.00 3,750.00 Inverter System 10 kW 50,000.00 1,250.00 Wiring System 50,000.00 1,250.00 Total 2,750,000.00 68,750.00 / kWe 275,000.00 6,875.00 Notes: 1 US Dollar = 40 Baht, March 2005 Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 24
  • 25. Actual construction costs for single crystalline photovoltaic 10 kW systems with lead acid battery. Descriptions Bht US $Designing Fee 100,000.00 2,500.00Foundation 50,000.00 1,250.00Steel Structure 200,000.00 5,000.00Single Crystalline Photovoltaic 10 kW 2,000,000.00 50,000.00Charge Controller System 150,000.00 3,750.00Lead Acid Battery 60 kW 150,000.00 3,750.00Inverter System 10 kW 50,000.00 1,250.00Wiring System 50,000.00 1,250.00Total 2,750,000.00 68,750.00/ kWe 275,000.00 6,875.00 Notes: 1 US Dollar = 40 Baht, March 2005 Source: AREF, Thailand, March 2005. 09/08/2005 AREF ISEC JW0021 25
  • 26. Operating Costs and Production Costs/ kWh for solar thermal dish Stirling 10 kW with lead acid battery for 10 years period in Thailand. Descriptions Bht/ kWh US $/ kWh Power Plant Cost 1.78 0.0445 Operation Cost 10 % * 0.178 0.0044 Inflation 7 %* 0.125 0.0031 Interested 15 %* 0.27 0.0067 Maintenance Cost 15 %* 0.27 0.0067 Electrical Cost 2.62 0.0655 Notes: 1 US Dollar = 40 Baht, March 2005, *Thai’s standard Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 26
  • 27. Operating Costs and Production Costs/ kWh for Single Crystalline Photovoltaic 10 kW with lead acid battery for 10 years period in Thailand. Descriptions Bht/ kWh US $/ kWh Power Plant Cost 3.02 0.0755 Operation Cost 10 %* 0.30 0.0075 Inflation 7 %* 0.21 0.0053 Interested 15 %* 0.45 0.0113 Maintenance Cost 30 %* 0.91 0.0227 Electrical Cost 4.89 0.1223 Notes: 1 US Dollar = 40 Baht, March 2005, *Thai’s standard Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 27
  • 28. Solar dish power technology projected cost. Descriptions US $ Power Plant Cost / kW 2,900 O&M / kWh 0.02 LEC year 2000 - 2010 / kWh 0.086- 0.13 to 0.04-0.06 Source: Sun Lab DOE/GO-10098-563, April 1998 [14]09/08/2005 AREF ISEC JW0021 28
  • 29. Comparison between PV versus Solar Dish 10 kW power plant for 24 hrs/day operation with lead acid battery in Thailand Descriptions Solar Dish Stirling PhotovoltaicLand Area m2 120.00 120.00Operation Area m2 50.00 100.00Hour of Operation/ year 8,760.00 8,760.00Efficiency % 25.00 10.00Battery Efficiency % 60.00 60.00Inverter Efficiency % 95.00 95.00Total Efficiency 14.25 8.55Cost / kWe 156,000.00 275,000.00Electric Price B/ kWh 2.62 4.89Technology 90 % made in Thailand High Technology, just assembly in ThailandProduction energy same sameStand Alone Unit same sameEnergy receiver Direct DiffuseMethod of conversion Concentration Non- ConcentrationDirect Pollution Impact None NoneIndirect Pollution Impact Some Some Source: Frequently Asked Question about Solar Cells NSTDA, [16] and AREF, Thailand, March 2005. 09/08/2005 AREF ISEC JW0021 29
  • 30. Energy capture by PV versus Solar Dish with same land area Diffuse Direct Dish @ PV@ 8.55% kWh/ 14.25% Mon MJ/ m2 kWh/ m2 m2 MJ/ m2 kWh/ m2 kWh/ m2 Jun 8.89 2.47 0.21 12.81 3.56 0.50 Jul 8.34 2.32 0.20 10.26 2.85 0.41 Aug 9.56 2.66 0.23 8.78 2.44 0.35 Sep 9.44 2.62 0.22 6.81 1.89 0.27 Oct 7.29 2.03 0.17 11.97 3.33 0.47 Nov 6.16 1.71 0.15 15.87 4.41 0.63 Dec 5.22 1.45 0.12 17.67 4.91 0.70 Jan 5.96 1.66 0.14 13.31 3.70 0.53 Feb 6.54 1.82 0.16 14.81 4.11 0.59 Mar 8.21 2.28 0.19 12.46 3.46 0.49 Apr 7.42 2.06 0.18 15.48 4.30 0.61 May 7.90 2.19 0.19 9.67 2.69 0.38 Remark: Data from year 2003– 2004 Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 30
  • 31. Figure 15. Solar Dish VS Solar Cell with same collector area 0.9 0.8 0.7 0.6 kW /m 2 0.5 Solar Dish 0.4 0.3 0.2 0.1 PV 0 Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Month09/08/2005 AREF ISEC JW0021 31
  • 32. Total energy capture by PV and Solar Dish PV Solar Dish Month kWh/ m2 kW kWh/ m2 kW Jun 0.21 126 0.50 150 Jul 0.20 120 0.41 123 Aug 0.23 138 0.35 105 Sep 0.22 132 0.27 81 Oct 0.17 102 0.47 141 Nov 0.15 90 0.63 189 Dec 0.12 72 0.70 210 Jan 0.14 84 0.53 159 Feb 0.16 96 0.59 177 Mar 0.19 114 0.49 147 Apr 0.18 108 0.61 183 May 0.19 114 0.38 114 Average 108 148.25 Battery 60 % 180 247.0809/08/2005 AREF ISEC JW0021 32
  • 33. Figure 16. Total Energy Capture by PV and Solar Dish 350 300 250 200 Solar Dish Kw 150 100 50 PV 0 Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Month09/08/2005 AREF ISEC JW0021 33
  • 34. The comparison between Solar dish with solar cell in Thailand. Descriptions Solar Dish Solar CellTechnology 90% made in Thailand Imported high technology, not ready to make in Thailand, Only assembly.Production energy Electric ElectricStand Alone Unit Large SmallEnergy receiver Direct DiffuseMethod of conversion Concentration Non-ConcentrationPollution None NoneElectricity A.C. D.CInverter None NeededConstruction Cost Normal Very HighOperation Medium EasyMaintenance Cost Low HighB/ kWh 2.62 4.89 Source: AREF, Thailand, March 2005.09/08/2005 AREF ISEC JW0021 34
  • 35. Summary 1. Siam Solar Dish System (SSDS) was designed to meet Thailand weather environment, such as humidity, solar insolation, soft-land and wind load. 2. The construction cost, maintenance cost, interest rate, inflation rate, operating cost, used in the calculation work in the research project. 3. Design Target Characteristics of Siam Solar Dish show peak efficiency 20 % at maximum insolation 1000 w/m2 and min 200 w/m2. As Thailand has poor insolation level, the engine can be started at 250 w/m2 to 555 w/m2, actual power output varying from 2.8 to 8.2 kW. Actual efficiency of this engine is 14.5 %.09/08/2005 AREF ISEC JW0021 35
  • 36. Solar Dish Drawing09/08/2005 AREF ISEC JW0021 36
  • 37. Pictures09/08/2005 AREF ISEC JW0021 37
  • 38. Questions / Answers Thank You09/08/2005 AREF ISEC JW0021 38

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