ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-06052019-211842


Tipo di tesi
Tesi di laurea magistrale
Autore
GRAZIANO, ANTONIO
URN
etd-06052019-211842
Titolo
Analysis of LOFA accident in WCLL DEMO reactor
Dipartimento
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA NUCLEARE
Relatori
relatore Forgione, Nicola
correlatore Paci, Sandro
correlatore Porfiri, Maria Teresa
Parole chiave
  • thermal hydraulics
  • melcor
  • lofa
  • fusion
  • demo
  • wcll
Data inizio appello
24/06/2019
Consultabilità
Non consultabile
Data di rilascio
24/06/2089
Riassunto
The thesis deals with the development and set-up of a specific MELCOR 1.8.6 Fusion Version nodalization of WCLL DEMO PHTS (Primary Heat Transfer System) able to analyze the transient behavior of the facility in case of Loss Of Flow Accident (LOFA). The focus is given to the accidental overpressure and temperature in the loop, in particular in the most loaded modules, to the temperature of the heat structures, to the mass flow rate of the pump and on decay heat. This activity has been concluded through sensitivity analysis on rupture area, rupture disks’ opening pressure and cross-section’s dimension aimed at investigating the behavior of the system and at supporting the design of the plant.
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