Modeling of two-phase flashing flow of multicomponent mixtures in large diameter pipes

Ya Qin, Xu Han, Hong Xing Wang, Zhen Lei Fang, Xiao Ti Cui, Xin Gang Li*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

3 Citations (Scopus)

Abstract


A two-phase flashing flow model is developed to predict the distributions of pressure, temperature, velocity and evaporation rate in a transfer line, which is a typical example of a two-phase flow pipe in the petrochemical industry. The model is proposed based on the pressure drop model and the multi-stage flash model. The results indicate that pressure drop, temperature drop, and change of evaporation rate mainly occur in the transition section and the junction site of the transfer line. The predictions of the model have been tested with reliable field data and the good agreement obtained may lead to a better understanding of the two-phase flashing flow phenomenon, as well as demonstrating the feasibility of applying the model into the design and optimization of pipelines.
Original languageEnglish
JournalChemical Engineering and Technology
Volume31
Issue number11
Pages (from-to)1676-1684
Number of pages9
ISSN0930-7516
DOIs
Publication statusPublished - Nov 2008
Externally publishedYes

Keywords

  • Multi-stage flash (MSF)
  • Pressure drop
  • Transfer line
  • Two-phase flow
  • Vapor-liquid

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