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Product losses of highly viscous products in pipe systems during displacement processes.

Abrahamsson, Johan (2011) In ISRN LUTMDN/TMHP--10/5228--SE
Department of Energy Sciences
Abstract
It is common in the process industry to displace one fluid by another. During the displacement process an unwanted mixing between the two phases is unavoidable and being able to estimate this mixing is of great importance when trying to minimize product losses and improving the quality of the final product.
A method for simulating the displacement process using commercial CFD codes was developed and the effect from varying the fluid parameters was simulated. The method was verified by comparing the results to experimental data. The method was accurate at estimating the breakthrough time but failed to predict the outflow of the residual film.
Finally a simple method based on the maximum velocity of the displaced fluid was investigated... (More)
It is common in the process industry to displace one fluid by another. During the displacement process an unwanted mixing between the two phases is unavoidable and being able to estimate this mixing is of great importance when trying to minimize product losses and improving the quality of the final product.
A method for simulating the displacement process using commercial CFD codes was developed and the effect from varying the fluid parameters was simulated. The method was verified by comparing the results to experimental data. The method was accurate at estimating the breakthrough time but failed to predict the outflow of the residual film.
Finally a simple method based on the maximum velocity of the displaced fluid was investigated delivering accurate predictions of the breakthrough time. (Less)
Please use this url to cite or link to this publication:
author
Abrahamsson, Johan
supervisor
organization
year
type
H1 - Master's Degree (One Year)
subject
keywords
displacement process breakthrough time product losses
publication/series
ISRN LUTMDN/TMHP--10/5228--SE
report number
5228
ISSN
0282-1990
language
English
id
1975511
date added to LUP
2011-06-15 11:37:02
date last changed
2011-06-15 11:37:02
@misc{1975511,
  abstract     = {It is common in the process industry to displace one fluid by another. During the displacement process an unwanted mixing between the two phases is unavoidable and being able to estimate this mixing is of great importance when trying to minimize product losses and improving the quality of the final product.
A method for simulating the displacement process using commercial CFD codes was developed and the effect from varying the fluid parameters was simulated. The method was verified by comparing the results to experimental data. The method was accurate at estimating the breakthrough time but failed to predict the outflow of the residual film.
Finally a simple method based on the maximum velocity of the displaced fluid was investigated delivering accurate predictions of the breakthrough time.},
  author       = {Abrahamsson, Johan},
  issn         = {0282-1990},
  keyword      = {displacement process
breakthrough time
product losses},
  language     = {eng},
  note         = {Student Paper},
  series       = {ISRN LUTMDN/TMHP--10/5228--SE},
  title        = {Product losses of highly viscous products in pipe systems during displacement processes.},
  year         = {2011},
}