TY - GEN
T1 - Transient simulations for multiple parallel channels with evaporating fluid
AU - Taitel, Yehuda
AU - Barnea, Dvora
N1 - Publisher Copyright:
© 2021, Begell House Inc. All rights reserved.
PY - 2015
Y1 - 2015
N2 - Evaporating fluid in parallel pipes is associated with stability problems, multiple solutions and uneven flow distribution. Even for identical heating of all pipes mal distribution, which is an undesired phenomenon, may be the only stable solution. Modeling the dynamic behavior of such systems is of great interest. It allows predicting the system response to changes in the operational conditions such as inlet flow rate and heating power. It is also essential for the design of a proper control for this complicated system. The transient model is based on the temporal local flow pattern in each pipe. The pipe is subdivided into numerical sections and the calculation of the local flow pattern and pressure drop in each cell is based on mechanistic modeling. Few examples of numerical transient simulations for a water/steam system flowing in 2, 3 and 4 parallel pipes are presented.
AB - Evaporating fluid in parallel pipes is associated with stability problems, multiple solutions and uneven flow distribution. Even for identical heating of all pipes mal distribution, which is an undesired phenomenon, may be the only stable solution. Modeling the dynamic behavior of such systems is of great interest. It allows predicting the system response to changes in the operational conditions such as inlet flow rate and heating power. It is also essential for the design of a proper control for this complicated system. The transient model is based on the temporal local flow pattern in each pipe. The pipe is subdivided into numerical sections and the calculation of the local flow pattern and pressure drop in each cell is based on mechanistic modeling. Few examples of numerical transient simulations for a water/steam system flowing in 2, 3 and 4 parallel pipes are presented.
UR - http://www.scopus.com/inward/record.url?scp=85089374097&partnerID=8YFLogxK
U2 - 10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.1710
DO - 10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.1710
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AN - SCOPUS:85089374097
SN - 9781567004298
T3 - International Symposium on Advances in Computational Heat Transfer
SP - 1731
EP - 1736
BT - Proceedings of CHT-15
PB - Begell House Inc.
T2 - 6th International Symposium on Advances in Computational Heat Transfer , CHT 2015
Y2 - 25 May 2015 through 29 May 2015
ER -