This paper deals with the dynamic behaviour of the DYNASTY facility. DYNASTY is a natural circulation loop aimed at studying the natural circulation dynamics in presence of volumetric distributed heat sources, and is provided with an All-External Heat Flux (A-EHF) to reproduce the effect of the Internal Heat Generation (IHG). To compare the A-EHF and the IHG cases, semi-analytical and numerical approaches are considered. As for the semi-analytical investigation, a linear analysis is performed to study the asymptotic equilibrium stability. Regarding the numerical viewpoint, an Object-Oriented 1D model and a 3D Computational-Fluid-Dynamics model are adopted to study the time-dependent behaviour.
An Experimental Facility to Investigate the Natural Circulation Dynamics in Presence of Distributed Heat Sources
PINI, ALESSANDRO;CAMMI, ANTONIO;CAUZZI, MARCO TUDOR;FANALE, FRANCESCO;LUZZI, LELIO
2016-01-01
Abstract
This paper deals with the dynamic behaviour of the DYNASTY facility. DYNASTY is a natural circulation loop aimed at studying the natural circulation dynamics in presence of volumetric distributed heat sources, and is provided with an All-External Heat Flux (A-EHF) to reproduce the effect of the Internal Heat Generation (IHG). To compare the A-EHF and the IHG cases, semi-analytical and numerical approaches are considered. As for the semi-analytical investigation, a linear analysis is performed to study the asymptotic equilibrium stability. Regarding the numerical viewpoint, an Object-Oriented 1D model and a 3D Computational-Fluid-Dynamics model are adopted to study the time-dependent behaviour.| File | Dimensione | Formato | |
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Energy_Procedia_101_( 2016 )_10-17.pdf
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