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Modelling of convection heat transfer in the SNU Riser Heat transfer Experimental Facility (RHEF)

Du Toit, C.G.; Shin, D.H.; Park, G.C. (SAAM, 2018)

The Reactor Cavity Cooling System (RCCS) of a High Temperature Gas-cooled Reactor (HGTR) plays an important role in ensuring the integrity of the HTGR during normal operating and accident conditions. The performance of ...

CFD analysis of thermal dispersion in a structured packed bed

Vermaak, H.J.; Du Toit, C.G. (SACAM, 2018)

Packed beds are generally modelled in a partial manner to avoid computational costs. This implies that only a small portion of the representative bed is modelled explicitly in CFD simulations, usually by assuming ...

Simulation of suction recirculation in double suction centrifugal pumps

Van der Walt, J.P.; Kruger, J.-H.; Du Toit, C.G. (SACAM, 2018)

Part-load operation conditions of a centrifugal pump will impose potentially strenuous effects on the operation and reliability of the turbomachine in question due to the risk of suction recirculation. Suction recirculation ...

Investigation of 1D system CFD and 3D CFD numerical methodology applied to an experimental facility

Niemand, P.F.; Du Toit, C.G. (SAAM, 2018)

The fourth generation gas-cooled nuclear reactor designs provide a promising prospect for energy and process heat generation. The designs` cycles have high thermal efficiencies, require relatively little fuel and are safe ...

A system CFD model of the heat transfer in a prismatic block of a VHTR

Nel, G.J.; Du Toit, C.G. (SAAM, 2018)

The conduction heat transfer through the prismatic blocks containing the fuel elements in a Very High Temperature Reactor (VHTR) is of crucial importance for the proper operation of the reactor under normal operating ...