Dynamic Behavior of Single-Phase Natural Convection Loops.

Resumo

Single-phase Natural Convection Loops (NCL’s) are engineering solutions to perform the function of heat removal without external energy supply. Nuclear Power Industry is, perhaps, the most important application of NCL’s. Greater reliability and lower costs are advantages of such systems in comparison to active ones. The counterpart is the possibility of unstable behavior to show up for certain operating and constructing parameters. The interest of the present work is on the dynamic behavior of the single-phase variance of NCL’s. A 1D model has been implemented to perform both linear and non-linear stability analysis. This work shows how operating and geometrical parameters impact on the dynamic behavior of single-phase NCL’s.