Premium
Modeling of Two‐Phase Flashing Flow of Multicomponent Mixtures in Large Diameter Pipes
Author(s) -
Qin Y.,
Han X.,
Wang H.X.,
Fang Z.L.,
Cui X.T.,
Li X.G.
Publication year - 2008
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200800212
Subject(s) - flashing , flash evaporation , pressure drop , mechanics , two phase flow , flow (mathematics) , materials science , pipeline transport , drop (telecommunication) , volumetric flow rate , evaporation , phase change , thermodynamics , engineering , mechanical engineering , metallurgy , physics
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.