Heat transfer modelling in Discrete Element Method (DEM)-based simulations of thermal processes: Theory and model development

Z Peng, E Doroodchi, B Moghtaderi - Progress in Energy and Combustion …, 2020 - Elsevier
Over the past decade, DEM-based simulation has become a promising alternative to
physical measurements of thermal particulate systems. Despite their rapid advancement and …

Solid particle solar receivers in the next‐generation concentrated solar power plant

F Nie, F Bai, Z Wang, X Li, R Yang - EcoMat, 2022 - Wiley Online Library
Solid particles are generally considered to be the most suitable heat transfer fluid (HTF) and
thermal energy storage (TES) materials for the next‐generation concentrated solar power …

A comprehensive heat transfer prediction model for tubular moving bed heat exchangers using CFD-DEM: Validation and sensitivity analysis

W Lu, C Ma, D Liu, Y Zhao, X Ke, T Zhou - Applied Thermal Engineering, 2024 - Elsevier
This study established a complete heat transfer prediction model that integrates four heat
transfer sub-models, including contact heat conduction, gas film heat conduction, heat …

Simulations of heat transfer to solid particles flowing through an array of heated tubes

AB Morris, Z Ma, S Pannala, CM Hrenya - Solar Energy, 2016 - Elsevier
A novel solar receiver that uses solid particles as a heat transfer fluid is being developed at
the National Renewable Energy Laboratory for use in concentrating solar power plants. The …

Waste heat recovery from high-temperature solid granular materials: Energy challenges and opportunities

Z Cheng, Z Guo, Z Tan, J Yang, Q Wang - Renewable and Sustainable …, 2019 - Elsevier
Large amounts of high-temperature solid granular (HTSG) materials, for example iron-ore
sinters, cement, coke and slags are produced throughout the world in metallurgy and …

Granular flow around the horizontal tubes of a particle heat exchanger: DEM-simulation and experimental validation

P Bartsch, S Zunft - Solar Energy, 2019 - Elsevier
Moving bed heat exchangers are a central element in solar thermal power plants using
granular heat transfer fluids. Their performance is determined by a complex granular flow …

Method of quantifying surface roughness for accurate adhesive force predictions

CQ LaMarche, S Leadley, P Liu, KM Kellogg… - Chemical Engineering …, 2017 - Elsevier
The van der Waals force between contacting surfaces depends strongly on the surface
roughness. Theories that allow for estimating the adhesion force, or the force to separate …

Heat transfer in counterflow fluidized bed of oxide particles for thermal energy storage

DC Miller, CJ Pfutzner, GS Jackson - International Journal of Heat and Mass …, 2018 - Elsevier
The potential for inert oxide particles as a heat transfer and thermal energy storage (TES)
media in concentrating solar power (CSP) depends in part on particle receiver designs that …

A novel contact thermal resistance model for heat transfer in granular systems: Leveraging the force-heat analogy

Y Luo, N Gui, Z Liu, X Yang, J Tu - International Journal of Heat and Mass …, 2024 - Elsevier
A novel particle-to-particle contact thermal resistance model is proposed in this study, based
on the concept of analogy between force and heat transfer. The distribution of heat flux on …

Discrete element modeling of a particle heater for energy storage systems

J Schirck, Z Ma, A Morris - Powder Technology, 2023 - Elsevier
A heater where particles fall under gravity and flow over a series of hot angled surfaces is
simulated. The conductive, convective, and interphase heat transfer are simulated for all …