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Experimental Validation of Different Modeling Approaches for Solid Particle Receivers

Ho, Clifford and Röger, Marc and Khalsa, Siri and Amsbeck, Lars and Buck, Reiner and Siegel, Nathan and Kolb, Greg (2009) Experimental Validation of Different Modeling Approaches for Solid Particle Receivers. SolarPACES. SolarPACES 2009, 15.-18. September 2009, Berlin, Deutschland. ISBN 978-3-00-028755-8.

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Solid particle receivers have the potential to provide high-temperature heat for advanced power cycles, thermochemical processes, and thermal storage via direct particle absorption of concentrated solar energy. This paper presents two different models to evaluate the performance of these systems. One model is a detailed computational fluid dynamics model using FLUENT that includes irradiation from the concentrated solar flux, two-band re-radiation and emission within the cavity, discrete-phase particle transport and heat transfer, gas-phase convection, wall conduction, and radiative and convective heat losses. The second model is an easy-to-use and fast simulation code using Matlab that includes solar and thermal radiation exchange between the particle curtain, cavity walls, and aperture, but neglects convection. Both models were compared to unheated particle flow tests and to on-sun heating tests. Comparisons between measured and simulated particle velocities, opacity, particle volume fractions, particle temperatures, and thermal efficiencies were found to be in good agreement. Sensitivity studies were also performed with the models to identify parameters and modifications to improve the performance of the solid particle receiver.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Experimental Validation of Different Modeling Approaches for Solid Particle Receivers
AuthorsInstitution or Email of Authors
Ho, CliffordSandia National Laboratories, Albuquerque, NM
Röger, Marcmarc.roeger@dlr.de
Khalsa, SiriSandia National Laboratories, Albuquerque, NM
Amsbeck, Larslars.amsbeck@dlr.de
Buck, Reinerreiner.buck@dlr.de
Siegel, NathanSandia National Laboratories, Albuquerque, NM
Kolb, GregSandia National Laboratories, Albuquerque, NM
Date:September 2009
Refereed publication:No
In ISI Web of Science:No
Keywords:Solar Thermal Power Plant, Solar Particle Receiver, Modeling, CFD, Validation, Tests Solarthermische Kraftwere, Solarer Partikelreceiver, Modellierung, Valdierung
Event Title:SolarPACES 2009
Event Location:Berlin, Deutschland
Event Type:international Conference
Event Dates:15.-18. September 2009
Organizer:SolarPACES, Deutsches Zentrum für Luft- und Raumfahrt (DLR) e.V.
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Hochtemperatursysteme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Marc Röger
Deposited On:19 Feb 2010 18:21
Last Modified:12 Dec 2013 20:48

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