Roberta Lazzeri
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View article: Reverse flow in a pressure suppression system due to condensation instabilities
Reverse flow in a pressure suppression system due to condensation instabilities Open
The Vacuum Vessel Pressure Suppression System (VVPSS) is designed to protect the ITER reactor (Vacuum Vessel, VV) from an overpressurization accident. The VVPSS is mainly composed of four Vapour Suppression Tanks (VSTs) partially filled wi…
View article: Direct steam condensation at sub-atmospheric pressure: experimental tests and similitude analysis
Direct steam condensation at sub-atmospheric pressure: experimental tests and similitude analysis Open
This paper deals with experimental and theoretical analyses of the steam direct condensation at sub-atmospheric pressure. These operation conditions occur in the Vacuum Vessel Pressure Suppression System (VVPSS) of ITER Nuclear Fusion Reac…
View article: Direct condensation of steam in a water tank at sub-atmospheric pressures
Direct condensation of steam in a water tank at sub-atmospheric pressures Open
In the nuclear fusion reactor, ITER, the Loss of Coolant Accident (LOCA) in the Vacuum Vessel has to be managed with pressure suppression systems working at sub-atmospheric pressure. The operating conditions differ considerably from those …
View article: Mitigation of a Loss of Coolant Accident in ITER Vacuum Vessel by Means of Steam Pressure Suppression
Mitigation of a Loss of Coolant Accident in ITER Vacuum Vessel by Means of Steam Pressure Suppression Open
A Loss of Coolant Accident (called ICE cat. IV) is postulated to occur in the ITER Vacuum Vessel due to a rupture of a shielding blanket cooling piping. The mitigation of this accident is realized by means of a Pressure Suppression System,…
View article: Experiments and model predictions for fatigue crack propagation in riveted lap‐joints with multiple site damage
Experiments and model predictions for fatigue crack propagation in riveted lap‐joints with multiple site damage Open
In this paper, the growth of long fatigue cracks up to failure in aircraft components is studied. A deterministic model is presented, able to simulate the growth of fatigue through cracks located at rivet holes in lap‐joint panels. It also…