polito.it
Politecnico di Torino (logo)

Experimental study of the stratification in an inclined tube

Alessandro Coppa

Experimental study of the stratification in an inclined tube.

Rel. Cristina Bertani. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Energetica E Nucleare, 2023

[img] PDF (Tesi_di_laurea) - Tesi
Accesso riservato a: Solo utenti staff fino al 22 Marzo 2026 (data di embargo).
Licenza: Creative Commons Attribution Non-commercial No Derivatives.

Download (2MB)
Abstract:

Study of the stratification phenomena occuring in the injection line of the ECCS during LOCA and fluid-dynamics of an inclined water jet. The ECCS, devoted to the reflooding of the core in case of loss of coolant accident, injects cold water that causes the condensation of the steam; condensation magnitude must be studied to asses temperature and pressure changes and the effect on the pressure thermal shock phenomena (PTS). It has been observed that, for certain values of mass flow rate, the injection pipe on the cold leg is no longer fully filled but it shows a free surface flow. The amount of pipe filled by the water is likely to be linked to the mass flow rate and to the inclination of the pipe. The study of the influence of these parameters on the filling ratio is of paramount importance since the aim of this work is to asses an hydraulic diameter and, possibly, the shape of the outgoing water jet.

Relatori: Cristina Bertani
Anno accademico: 2022/23
Tipo di pubblicazione: Elettronica
Numero di pagine: 89
Soggetti:
Corso di laurea: Corso di laurea magistrale in Ingegneria Energetica E Nucleare
Classe di laurea: Nuovo ordinamento > Laurea magistrale > LM-30 - INGEGNERIA ENERGETICA E NUCLEARE
Aziende collaboratrici: CEA Saclay
URI: http://webthesis.biblio.polito.it/id/eprint/27103
Modifica (riservato agli operatori) Modifica (riservato agli operatori)