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Design and Technoeconomic Analysis of High-Temperature Particle Conveyance Components for a 100 MWe Concentrating Solar Power Plant

Sment, Jeremy N.I.; Magaldi, Mario; Agostino, Fulvio'; Bassetti, Fulvio; Repole, Kenzo; Gonzalez-Portillo, Luis F.; Schroeder, Nathaniel R.; Albrecht, Kevin; Ho, Clifford K.

Levelized costs of electricity (LCOE) approaching the U.S. Department of Energy Solar Energy Technologies Office 2030 goal of 0.05 $/kWh may be achievable using Brayton power cycles that use supercritical CO2 as the working fluid and flowing solid particles with temperatures >700° C as the heat transfer media. The handling and conveyance of bulk solid particles at these temperatures in an insulated environment is a critical technical challenge that must be solved for this approach to be used. A design study was conducted at the National Solar Thermal Test Facility (NSTTF) at Sandia National Laboratories in Albuquerque, NM, with the objective of identifying the technical readiness level, performance limits, capital and O&M costs, and expected thermal losses of particle handling and conveyance components in a particle-based CSP plant. Key findings indicated that chutes can be a low-cost option for particle handling but uncertainties in tower costs make it difficult to know whether they can be cost effective in areas above the receiver if tower heights must then be increased. Skips and high temperature particle conveyance technology are available for moving particles up to 640° C. This limits the use of mechanical conveyance above the heat exchanger and suggests vertical integration of the hot storage bin and heat exchanger to facilitate direct gravity fed handling of particles.

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TYPE SAND Report YEAR 2022
DOIOSTI

Progress in Fabrication and Characterization of Vertical GaN Power Devices (invited)

Kaplar, Robert; Binder, Andrew; Crawford, Mary H.; Allerman, A.A.; Gunning, Brendan P.; Flicker, Jack D.; Yates, Luke; Armstrong, Andrew A.; Dickerson, Jeramy; Glaser, Caleb E.; Steinfeldt, Jeffrey A.; Abate, Vincent M.; Smith, Michael L.; Pickrell, Gregory W.; Sharps, Paul; Anderson, T.; Gallagher, J.; Jacobs, A.G.; Koehler, A.; Tadjer, M.; Hobart, K.; Hite, J.; Ebrish, M.; Porter, M.; Zeng, K.; Chowdhury, S.; Ji, D.; Aktas, O.; Cooper, James A.

Abstract not provided.

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TYPE Conference Presentation YEAR 2022
DOIOSTI

GIF Gas Cooled Fast Reactor: Proliferation Resistance and Physical Protection White Paper

Cipiti, Benjamin B.

This white paper represents the status of Proliferation Resistance and Physical Protection (PR&PP) characteristics for the Gas-cooled Fast reactor (GFR) reference designs selected by the Generation IV International Forum (GIF) GFR System Steering Committee (SSC). The intent is to generate preliminary information about the PR&PP features of the GFR reactor technology and to provide insights for optimizing their PR&PP performance for the benefit of GFR system designers. It updates the GFR analysis published in the 2011 report “Proliferation Resistance and Physical Protection of the Six Generation IV Nuclear Energy Systems”, prepared Jointly by the Proliferation Resistance and Physical Protection Working Group (PRPPWG) and the System Steering Committees and provisional System Steering Committees of the Generation IV International Forum, taking into account the evolution of both the systems, the GIF R&D activities, and an increased understanding of the PR&PP features. The white paper, prepared jointly by the GIF PRPPWG and the GIF GFR SSC, follows the high-level paradigm of the GIF PR&PP Evaluation Methodology to investigate the PR&PP features of the GIF GFR 2400 MWth reference design. The ALLEGRO reactor is also described. The EM2 and HEN MHR reactor are mentioned. An overview of fuel cycle for the GFR reference design and for the ALLEGRO reactor are provided. For PR, the document analyses and discusses the proliferation resistance aspects in terms of robustness against State-based threats associated with diversion of materials, misuse of facilities, breakout scenarios, and production in clandestine facilities. Similarly, for PP, the document discusses the robustness against theft of material and sabotage by non-State actors. The document follows a common template adopted by all the white papers in the updated series.

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TYPE Other Report YEAR 2022
DOIOSTI
Results 8426–8450 of 99,299
Results 8426–8450 of 99,299