Numerical heat transfer modelling of a centrifugal solar particle receiver

Solar particle receivers promise higher operating temperatures compared to molten salt-based receivers. The Discrete Element Method (DEM) tool LIGGGHTS is used to simulate the particle motion in a centrifugal solar particle receiver. A separate thermal model is developed in MATLAB, which uses the pa...

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Bibliographic Details
Main Authors: Hicdurmaz, Serdar, Johnson, Evan F., Grobbel, Johannes, Amsbeck, Lars, Buck, Reiner, Hoffschmidt, Bernhard
Format: Conference Proceeding
Language:English
Subjects:
Discrete element method
Heat transfer
Incident radiation
Molten salts
Monte Carlo simulation
Operating temperature
Particle motion
Radiation
Receivers
Temperature distribution
Thermal analysis
Thermal simulation
Thermodynamic efficiency
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Summary:Solar particle receivers promise higher operating temperatures compared to molten salt-based receivers. The Discrete Element Method (DEM) tool LIGGGHTS is used to simulate the particle motion in a centrifugal solar particle receiver. A separate thermal model is developed in MATLAB, which uses the particle positions calculated with the DEM simulation. Heat transfer at the particle scale is accounted for with models of particle-particle conduction, particle-fluid- particle conduction, and a newly developed short-range radiation model. Radiation between large internal surfaces of the receiver are modeled with a view factor based long-range radiation model, and concentrated incident radiation is modeled with the Monte Carlo method. A thermal simulation for a lab-scale receiver is run for a relevant set of operational parameters, with key results being the temperature distribution and thermal efficiency of the receiver.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0086375