This work is aimed at investigating the fluid dynamic behaviour of a vapor-liquid separator treating a two phase flow mixture of liquid water and steam for a petroleum industry application. The investigation is carried out on the realm of a Computational Fluid Dynamic (CFD) approach, consisting in the numerical solution of the Reynolds-Averaged Navier-Stokes equations (RANS) in the Eulerian framework for each phase, coupled with a two-phase extension of the very well know k-ε turbulence model. The calculations are referred to a computational domain describing very closely the three dimensional geometrical features of a knock-out drum adopted in an oil refinery process. The velocity fields of both phases, the pressure and the hold-up distributions of water and steam as predicted by the numerical model are discussed. The results allow to highlight the effect of a water slug inlet, whose entrance represents the most critical working condition for the drum, causing vibrations. The dynamic behaviour of the drum equipped with two different inlet devices is critically analyzed and the possible geometrical optimization for the reduction of the intermittent pressure on the vessel wall due to the entrance of the slug is discussed.

HYDRODYNAMICS AND PRESSURE DISTRIBUTION IN A VAPOR-LIQUID SEPARATOR FED WITH INTERMITTENT FLOW / Alessandro Paglianti; Andrea Luongo; Fabrizio Caccia; Giuseppina Montante. - ELETTRONICO. - (2014), pp. 1-11. (Intervento presentato al convegno 13th INTERNATIONAL CONFERENCE on MULTIPHASE FLOW IN INDUSTRIAL PLANT tenutosi a Sestri Levante (GE) nel 17-19 September 2014).

HYDRODYNAMICS AND PRESSURE DISTRIBUTION IN A VAPOR-LIQUID SEPARATOR FED WITH INTERMITTENT FLOW

PAGLIANTI, ALESSANDRO;MONTANTE, GIUSEPPINA MARIA ROSA
2014

Abstract

This work is aimed at investigating the fluid dynamic behaviour of a vapor-liquid separator treating a two phase flow mixture of liquid water and steam for a petroleum industry application. The investigation is carried out on the realm of a Computational Fluid Dynamic (CFD) approach, consisting in the numerical solution of the Reynolds-Averaged Navier-Stokes equations (RANS) in the Eulerian framework for each phase, coupled with a two-phase extension of the very well know k-ε turbulence model. The calculations are referred to a computational domain describing very closely the three dimensional geometrical features of a knock-out drum adopted in an oil refinery process. The velocity fields of both phases, the pressure and the hold-up distributions of water and steam as predicted by the numerical model are discussed. The results allow to highlight the effect of a water slug inlet, whose entrance represents the most critical working condition for the drum, causing vibrations. The dynamic behaviour of the drum equipped with two different inlet devices is critically analyzed and the possible geometrical optimization for the reduction of the intermittent pressure on the vessel wall due to the entrance of the slug is discussed.
2014
Proceedings of 13th INTERNATIONAL CONFERENCE on MULTIPHASE FLOW IN INDUSTRIAL PLANT
1
11
HYDRODYNAMICS AND PRESSURE DISTRIBUTION IN A VAPOR-LIQUID SEPARATOR FED WITH INTERMITTENT FLOW / Alessandro Paglianti; Andrea Luongo; Fabrizio Caccia; Giuseppina Montante. - ELETTRONICO. - (2014), pp. 1-11. (Intervento presentato al convegno 13th INTERNATIONAL CONFERENCE on MULTIPHASE FLOW IN INDUSTRIAL PLANT tenutosi a Sestri Levante (GE) nel 17-19 September 2014).
Alessandro Paglianti; Andrea Luongo; Fabrizio Caccia; Giuseppina Montante
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/430690
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact