Subchannel analysis of Al2O3 nanofluid as the coolant in SMART advanced small modular reactor

چکیده مقاله

The main objective of this study is to predict the thermal hydraulic behavior of nanofluids as the coolant in the fuel assembly of SMART advanced small modular reactor. SMART is a promising advanced small and medium category nuclear power reactor. It is an integral type reactor with a sensible mixture of proven technologies and advanced design features. SMART aims at achieving enhanced safety and improved economics; the enhancement of safety and reliability is realized by incorporating inherent safety improving features and reliable passive safety systems. Water-based nanofluids containing various volume fractions of Al2O3 nanoparticles are analyzed. The conservation equations and conduction heat transfer equation for fuel and clad have been derived and discretized by Finite volume method. The transfer of mass, momentum and energy between adjacent subchannels are split into diversion cross-flow and turbulent mixing components. The governed non-linear algebraic equations are solved by using analytical iteration methods. Finally the nanofluid analysis results are compared with the pure water results.

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