(264d) Heat Transfer in Directly-Irradiated High-Temperature Particle–Gas Flows for Solar Particle Receiver Applications
AIChE Annual Meeting
2023
2023 AIChE Annual Meeting
Sustainable Engineering Forum
Concentrated Solar Power Generation and Chemical Processing II
Monday, November 6, 2023 - 1:30pm to 1:50pm
We present simulations of particleâgas two-phase flows using the multi-phase particle-in-cell method. The method allows for capturing high-fidelity solidâgas flow characteristics with increased computational efficiency by combing the advantages of both Eulerian and Lagrangian methods. Radiative transfer in polydisperse particles is investigated using a novel radiative transfer model. The radiative transfer model considers polydisperse particles as a multi-component system and is implemented using the Monte Carlo ray-tracing method. A three-dimensional computational fluid dynamics model is developed for directly-irradiated high-temperature particleâgas flows laden with polydisperse particles by coupling particleâgas hydrodynamics of particleâgas flows, radiative heat transfer in non-grey absorbing, emitting and anisotropically-scattering multi-component media, conduction in the gas phase, and interfacial convective heat transfer. The computational model is employed to study thermal performance of a free-falling particle receiver.