Heliostat field layout optimisation for a central receiver systemPresenter: Shanley LutchmanAcademic Mentor: Paul Gauch and Prof Albert GroenwoldIndustrial Mentor: Dr Joe Roy-AikinsDate: 6 May 2014Eskom Power Plant Engineering Institute2AcknowledgementThis research was conducted through the Eskom Power Plant Engineering Institute (EPPEI) Eskom Specialisation Centre for Renewable Energy at The University of StellenboschEskom Power Plant Engineering Institute3AcknowledgementStellenboschCentre for Renewable and Sustainable Energy Studies(CRSES)Solar Thermal Energy Research Group(STERG)Eskom Power Plant Engineering Institute4Acknowledgement Malcolm Fawkes Prof Louis Jestin Prof Wikus van Niekerk Marlize Andr Nkosi NdikaEskom Power Plant Engineering Institute5Contents1. Introduction2. Heliostat Field Analysis3. Optimisation Methods4. Summary1. IntroductionEskom Power Plant Engineering Institute7Central Receiver SystemEskom Power Plant Engineering Institute8Central Receiver SystemEskom Power Plant Engineering Institute9Central Receiver SystemEskom Power Plant Engineering Institute10Central Receiver SystemEskom Power Plant Engineering Institute11Heliostat Field Layout OptimisationEskom Power Plant Engineering Institute12Central Receiver SystemHeliostat Field Layout OptimisationField Analysis MethodOptimisationMethod2. Field AnalysisEskom Power Plant Engineering Institute14Field Analysis MethodsRay TracingConvolution MethodField AnalysisEskom Power Plant Engineering Institute15Ray TracingSolTraceEskom Power Plant Engineering Institute16Ray TracingPS10 - SpainEskom Power Plant Engineering Institute17Convolution MethodcosineattenuationspillageblockingshadingDNIheliostat locations3. OptimisationMethodsEskom Power Plant Engineering Institute19Field Analysis MethodsGrowthMethodPattern MethodOptimisationMethodsFree Variable MethodEskom Power Plant Engineering Institute20Growth MethodEskom Power Plant Engineering Institute21Pattern MethodEskom Power Plant Engineering Institute22Pattern MethodEskom Power Plant Engineering Institute23Free Variable MethodEskom Power Plant Engineering Institute24Free Variable Method500 Heliostats= 1 000 Variables= 250 000+ Constraints Eskom Power Plant Engineering InstituteFree Variable Method25Eskom Power Plant Engineering InstituteFree Variable Method26Eskom Power Plant Engineering InstituteFree Variable Method271.2% more annual intercepted energy4. SummaryEskom Power Plant Engineering Institute29SummaryGrowth MethodPattern MethodFree Variable MethodRay TracingConvolution MethodHeliostat Field Layout OptimisationField AnalysisOptimisationMethodThank you