Current Studies on Reactor Core Heat Transfer

Effect of Reactor Heat Transfer Limitations on Co Preferential Oxidation

Our recent studies of CO preferential oxidation (PrOx) identified systemic differences between the characteristic curves of CO conversion for a microchannel reactor with thin-film wall catalyst and conventional packed-bed lab reactors (m-PBR’s). Strong evidence has suggested that the reverse water-gas-shift (r-WGS) side reaction activated by temperature gradients in m-PBR’s is the source of the...

Current Studies of Conversion of Ghana Research Reactor Core to Low Enriched Uranium

The core conversion studies of the Ghana Research Reactor Core started in 2006 and with the objective of designing an LEU core with similar operational capabilities as the original HEU core and with acceptable safety margins under both normal and accident conditions. Steadystate studies for converting the Ghana MNSR facility from HEU to LEU core have been performed using the PLTEMP/ANL V4.1 cod...

Intercomponent Heat Transfer of Dispersed Materials in a Plasma Reactor

The results are reported of the experlmental investigation ertalning to the interphase heat exchange of the particles of ilspersed materlal In the plasma reactor wlth multl-jet mixing chambers. The effect Is established of the mass flow rate concentratlon of the dlspersed ma'lerial on the heat flux to the reactor walls. The experimental data on the inte hase heat exchange of varlous particles a...

Heat and Mass Transfer in Fixed-bed Tubular Reactor

Heat and mass transfer problem in a fixed-bed tubular reactor is one of the major concerns in the chemical engineering. The two dimensional axial plug flow model was used for a water gas shift reactor to compare heat conduction or mass diffusion with convective effect. In the case of fast fluid flow in highly permeable catalyst-bed, convective heat transfer was dominant compared to heat conduct...

Numerical Investigation of the Flow and Heat Transfer within the Core Cooling Channel of a Supercritical Water Reactor