Numerical heat transfer modelling of a centrifugal solar particle receiver

Hicdurmaz S., Johnson E. F., Grobbel J., Amsbeck L., Buck R., Hoffschmidt B.

26th International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2020, Freiburg, Virtual, Germany, 28 September - 02 October 2020, vol.2445 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2445
  • Doi Number: 10.1063/5.0086375
  • City: Freiburg, Virtual
  • Country: Germany
  • Middle East Technical University Affiliated: Yes


© 2022 Author(s).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.