200kW 탑형 태양열발전시스템에서 사용되는 Heliostat의 집열특성 분석
Analysis of Energy Concentration Characteristics of Heliostat used in 200kW Tower Type Solar Thermal Power Plant
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참고문헌
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초록
Heliostatinthetowertypesolarthermalpowerplantisasuntrackingmirrorsystem toreflectthesolarenergy tothereceiverandtheopticalperformanceofitaffectstotheefficiencyofwholepowerplantmostsignificantly.Thus asolidunderstandingofheliostat'senergyconcentrationcharacteristicsisthemostimportantstepindesigningofthe heliostatfieldandthewholepowerplant. Theworkpresentedhereistheanalysisofenergyconcentrationcharacteristicsofheliostatusedin200kW solar thermalpowerplant,wherethereceiverlocatedat43m highintowerhas2x2m rectangularshape.Theheliostat reflectivesurfaceisformedby4of1x1m flatplatemirrorfacetandthemirrorfacetismountedonthesphericalframe. Thedirectnormalincidentradiation modelsin vernalequinox,summersolstice,autumnalequinox andwinter solsticearefirstderivedfrom theactuallymeasureddata.Thentheinterceptratio,heatfluxdistributionandtotal energycollectedatthereceiverfortheheliostatslocatedinthevariousplacesoftheheliostatfieldareinvestigated. Finallytheeffectofmirrorfacetinstallationerrorontheopticalperformanceoftheheliostatisanalyzed.
Abstract
Heliostatinthetowertypesolarthermalpowerplantisasuntrackingmirrorsystem toreflectthesolarenergy tothereceiverandtheopticalperformanceofitaffectstotheefficiencyofwholepowerplantmostsignificantly.Thus asolidunderstandingofheliostat'senergyconcentrationcharacteristicsisthemostimportantstepindesigningofthe heliostatfieldandthewholepowerplant. Theworkpresentedhereistheanalysisofenergyconcentrationcharacteristicsofheliostatusedin200kW solar thermalpowerplant,wherethereceiverlocatedat43m highintowerhas2x2m rectangularshape.Theheliostat reflectivesurfaceisformedby4of1x1m flatplatemirrorfacetandthemirrorfacetismountedonthesphericalframe. Thedirectnormalincidentradiation modelsin vernalequinox,summersolstice,autumnalequinox andwinter solsticearefirstderivedfrom theactuallymeasureddata.Thentheinterceptratio,heatfluxdistributionandtotal energycollectedatthereceiverfortheheliostatslocatedinthevariousplacesoftheheliostatfieldareinvestigated. Finallytheeffectofmirrorfacetinstallationerrorontheopticalperformanceoftheheliostatisanalyzed.
참고문헌 (14)
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