Buck, Reiner

Neises, Martina

Institute of Transport Research:Publications

Opportunities of applying concentrating solar solutions for process heat of up to 1000°C in South AfricaSAIMM Webinar Renewable Energy Solutions, 04.11.2020Reiner Buck, Martina Neises-von PuttkamerDLR, Institute of Solar Research> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 1> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 2DLR – German Aerospace Center• Research Institution, Space Agency and Project Management  Agency• Research Areas: Aeronautics  Space Research and Technology Transport  Energy  Defence and Security• 8400 employees across 47 institutes and facilities at 27 sites in Germany• 17 subsidiaries, cooperations and outposts in Germany, the Netherlands and Spain• Offices in Brussels, Paris, Tokyo and Washington• Total income 2018: 1035 Mio. €DLR - Institute of Solar ResearchResearch & Development> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 3• Located in Cologne, Stuttgart, Jülich and Almería (Spain)• 135 staff members Concentrating solar power and thermal – CSP and CSTConcentrating solar technologies for power production and provision of process heat> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 4Why are we talking about concentrated solar?> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 5line focus (2D-conc.)concentration 10 - 200point focus or central receiver (3D-conc.)concentration 100 - 2000400 °C 1000 °C 2000 °Cparabolic trough solar tower dishCST is able to provice heat at a defined temperature, adaptable to the processWhy are we talking about concentrated solar?> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 6thermal storage• CST can provide heat at competitive cost• Cheap thermal storage gives the opportunityfor dispatchable energy production• CSP already implemented in South Africa:• Bokpoort, Khi Solar One, …. • LCOE higher than PV• Dispatchable through thermal storage High Temperature Process Heat:CentRec® Particle Receiver> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 7• Direct absorption receiver• Bauxite particles suitable for high flux and temperatures >> 1000 °C• Low cost materials for reduction in levelized cost of heat and low cost provision of thermal storage• Experimental campaign in Jülich under ~10 % part load already provided >960 °CSee: 24/7 renewable high temperature heat utilising ceramic particles as heat carrierBy Dr. Lars Amsbeck, HiTemp-2, 16.03.2020;HelioHeat is a startup commercially providing the CentRec receiver.Particle residence time / receiver outlet temperature controlled by adjusting rotational speed Thin, optical dense layer for all load conditionsIntroduction CentRec®> SolarPaces 2018 > M. Ebert  •  OPERATIONAL EXPERIENCE OF A CENTRIFUGAL PARTICLE RECEIVER PROTOTYPE > 4th of October 2018DLR.de  •  Chart 8The CentRec® Particle Receiver> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 9• Power generation (e.g. suited for steam turbine at 620 °C or next generation sCO2 technologies at ~700 °C) • Process heat, e.g. air at 800 °C• Solar thermal chemical reactor / reaction (including using catalytic particles)• Heat provision for Solar Fuels productionparticles at 1000 °CExample of a plant configuration where theheat exchanger suppliesa power blockParticle system for process heat generation> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 10steamairOther gasesparticles at 1000 °Cup to ~ 800 °C PREMA – Reduced CO2 emissions and consumption of electrical energy in Mn-alloy production> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 11Mn ores, 25°CMnO2, Mn2O3Electrical energyCoke, CMn alloysFurnaceMnO2 + C →Mn + CO + CO2Before  PREMAAfter PREMAPRE-TREATMENTMn ores, 25°CMnO2, Mn2O3Electrical energyCoke, CMn alloysFurnaceMnO + C →Mn + COMn ores,600°CMnO, Mn3O4Bio-carbonCO-rich off-gasThermal solarChoice of Sustainable energy sourcesEnergy efficient, primary production of manganese ferroalloys through application of novel energy systems in the drying and pre-heating of furnace feed materialsPREMA project is supported by EU Horizon 2020 Research and Innovation Programme under Grant Agreement No 820561PREMA> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 12https://www.spire2030.eu/premaDemonstration of solar process heat introduction in two pilot facilities:• solar thermal particle test plant with thermal storage for continuous production of hot air at 800°C (DLR Solar Tower, Germany)• solar thermal plant to preheat manganese ores with hot air continuously at 800°C(South Africa)Case Study: Kalagadi Manganese Sinter plant, Northern Cape, South Africa> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 13Kalagadi Manganese mineand sinter plantKalagadi sinter plantLocation of KalagadiManganese in South AfricaSolar Ressource (DNI) in South AfricaCase Study: The Kalagadi Manganese Sinter plant, Northern Cape, South AfricaDLR.de  •  Chart 14images: OutotecAir return pipeCase Study: The Kalagadi Manganese Sinter plant, Northern Cape, South AfricaDLR.de  •  Chart 15images: OutetecAir return pipeHot particles Introduction of solar hot air from stored particles can replace large fraction of Diesel fuel Case Study: Kalagadi Manganese Sinter plantDLR.de  •  Chart 16• Remote location with high annual DNI, high fuel price• LCOH from solar process heat: projected at ~50% of burning Diesel(assumption: mature system cost, brent crude at 75 USD/barrel)• payback period ~6 years estimated100 AUD60 USD50 AUD30 USDKalagadi sinter plantTransportation of Heat to Factory> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 17Ground particle transport by truck (electric and autonomous if possible) or rail enables multitower systems to achieve higher capacities and locating the solar plant some km away from the location of use CSP-H2Pyro  - Hydrogen production with solar energy systems• System analysis for production of H2 with High Temperature Electrolyzer• Coupling of electrolyzer with renewable energy sources• Comparison of CSP/ CST and CSP/CST + PV systems• Continuous H2 supply• Techno-economic evaluation> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 18H2 for e.g. mining industry, steel productionHIFLEXHIgh Storage Density Solar Power Plant for FLEXible Energy Systems> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 19• http://hiflex-project.eu/• Demonstration of a complete pre-commercial flexible CSP prototype plant featuring cheap solid particles as storage and heat transfer medium• system integration in an existing pasta plant in Foggia, Italy• steam generation at 620°C  through solar tower with particle receiver• production of pressurized water (135 °C / 3.6 bar) for drying process in pasta production• thermal storage system providing 2.5x higher energy storage density at 50 % lower energy storage costOpportunities for South Africa> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 20High temperature solar process heat for a varietyof applications:• Different solar technologies, adaptable to power and heat demand:• Temperature level• Time of supply (storage)• Supply at predictable cost• Co-generation possible Artists rendering of a 2.5 MW CST plantWhat DLR can provide:• Analysis of high temperature process heatopportunities• individual opportunities• holistic studies of opportunities / application fields• Development of ideas, concepts, case studies• System integration into processContact:Dr. Reiner Buckreiner.buck@dlr.de+49 711 6862 602Dr. Martina Neises-von Puttkamermartina.neises@dlr.de+49 711 6862 8172www.DLR.de/sf> SAIMM Webinar Renewable Energy Solutions > Reiner Buck, Martina Neises-von Puttkamer > 04.11.2020DLR.de  •  Chart 21Thank you for your attention!

Opportunities of applying concentrating solar solutions for process heat of upto 1000°C in South Africa

https://elib.dlr.de/137841/1/201104_SAIMM%20Webinar%20Buck.pdf

Opportunities of applying concentrating solar solutions for process heat of upto 1000°C in South Africa

Abstract

Similar works

Full text

Available Versions

Institute of Transport Research:Publications