200kW 탑형 태양열발전시스템의 Heliostat Field 설계
Design of Heliostat Field for 200kW Tower Type Solar Thermal Power Plant
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참고문헌
키워드
초록
Heliostatfieldisthemostimportantsubsystem inthetowertypesolarthermalpowerplantsinceitsoptical performanceaffectsthetotalsystem efficiencymostsignificantlywhiletheconstructioncostofitisthemajorpart oftotalconstructioncostinsuchapowerplant.Thusawelldesignedheliostatfieldtomaximizetheoptical efficiencyaswellastominimizethelandusageisveryimportant. Thisworkpresentsmethodology,proceduresandresultofheliostatfileddesignfor200kW solarthermalpower plantbuiltrecentlyinDaegu,Korea.A 2x2(m)rectangularshapedreceiverlocatedat43(m)highandtiltedtowardheliostatfield,450ofheliostatsofwhichthereflectivesurfaceisformedby4of1x1(m)flatplatemirror facet,andthelandareahavingabout140x120(m)sizeareusedtoform theheliostatfield. A proceduretodeploy450heliostatsinradialstaggerednonblockingformationisdeveloped.Alsotheprocedures tocomputethecosineeffect,interceptratio,blocking andshading ratiointhefieldaredeveloped.Finally the heliostatfiled is designed by finding the optimalradialdistance and azimuthalspacing in radialstaggered nonblockingformationsuchthatthedesignedheliostatfieldopticalefficiencycouldbemaximized. Thedesigned heliostatfield has ofannualaverageopticalefficiency,which isobtained by annually averaging theopticalefficienciescomputedbetween thetimeofwheresun elevation anglebecomes after sunriseandthetimeofwheresunelevationanglebecomes beforesunsetineachday.
Abstract
Heliostatfieldisthemostimportantsubsystem inthetowertypesolarthermalpowerplantsinceitsoptical performanceaffectsthetotalsystem efficiencymostsignificantlywhiletheconstructioncostofitisthemajorpart oftotalconstructioncostinsuchapowerplant.Thusawelldesignedheliostatfieldtomaximizetheoptical efficiencyaswellastominimizethelandusageisveryimportant. Thisworkpresentsmethodology,proceduresandresultofheliostatfileddesignfor200kW solarthermalpower plantbuiltrecentlyinDaegu,Korea.A 2x2(m)rectangularshapedreceiverlocatedat43(m)highandtiltedtowardheliostatfield,450ofheliostatsofwhichthereflectivesurfaceisformedby4of1x1(m)flatplatemirror facet,andthelandareahavingabout140x120(m)sizeareusedtoform theheliostatfield. A proceduretodeploy450heliostatsinradialstaggerednonblockingformationisdeveloped.Alsotheprocedures tocomputethecosineeffect,interceptratio,blocking andshading ratiointhefieldaredeveloped.Finally the heliostatfiled is designed by finding the optimalradialdistance and azimuthalspacing in radialstaggered nonblockingformationsuchthatthedesignedheliostatfieldopticalefficiencycouldbemaximized. Thedesigned heliostatfield has ofannualaverageopticalefficiency,which isobtained by annually averaging theopticalefficienciescomputedbetween thetimeofwheresun elevation anglebecomes after sunriseandthetimeofwheresunelevationanglebecomes beforesunsetineachday.
참고문헌 (11)
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