The pebble bed high temperature gas-cooled reactor is a promising generation-IV reactor,
which uses large fuel pebbles and helium gas as coolant. The pebble bed flow is a …

Abstract Knowledge and proper safety analyses of the gas coolant and heat transport
mechanism in the dynamic core of packed pebble bed nuclear reactors pose challenges to …

In the heat transportation of core of high temperature gas-cooled nuclear reactor (HTGR),
radiative heat transfer plays a significant role in the CFD-DEM simulations. The numerical …

Radiative heat transfer has attracted increasing research interest in various dense granular
systems, including large-scale nuclear pebble-bed reactors, fusion breeder blankets …

Thermal radiation is an important part of heat transfer in granular systems, such as the
packed pebble bed of high-temperature gas-cooled reactor (HTGR), bubbling fluidized bed …

Thermal radiation in pebble bed is very hard to compute accurately and efficiently since it
occurs between the surfaces no matter how far they are. Herein, radiative heat flux and …

Based on the discrete element method (DEM) and GPU parallel computing, a particle heat
transfer model is developed to simulate the heat transfer in a pebble bed of the high …

Dust deposition on solar photovoltaic panels dramatically weakens the panel working
operation and service life. In this study, the formation and evolution process of dust …

Radiative heat transfer is significant but rather complicated in the bed packed with lots of
high temperature particles. Unfortunately, it cannot use traditional radiative transfer equation …

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 …