Numerical predication of solidification phenomena of phase change material in concentric annulus pipe
Joint Authors
al-Hadithi, Mustafa Barazan
Abbas, Balqis A.
Source
Iraqi Journal of Industrial Research
Issue
Vol. 8, Issue 3 (31 Dec. 2021), pp.25-38, 14 p.
Publisher
Ministry of Industry and Minerals Corporation of Research and Industrial Development
Publication Date
2021-12-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
Abstract EN
Two-dimensional numerical simulation is performed aiming to understand the role of buoyancy force convection during restricted solidification of phase change materials (PCMs) inside a shell and tube heat exchanger according to annulus cross section.
Where the transient history of PCM solidification evolution was studied.
The governing equations of mass, momentum and energy are solved to study the solidification behavior inside the annulus geometry.
The fluid flow in the mushy zone was accounted for using the Darcy drag source term in momentum, and the liquid percentage in each cell was updated using the enthalpy-porosity method.
Thermal conditions of the outer cylinder insulated (adiabatic) and the inner cylinder at constant temperature (isothermal).
The results are presents as a temperature contour and liquid fraction distribution in the domain.
The predicted result shows the capturing phenomenon: primary heat conduction in all regions, then heat convection and conduction become dominant in the top and bottom regions, respectively.
The max.
and min.
temperature changes near the outer pipe surface during 16 hrs.
are 56.25% and 42.5% , Two-dimensional numerical simulation is performed aiming to understand the role of buoyancy force convection during restricted solidification of phase change materials (PCMs) inside a shell and tube heat exchanger according to annulus cross section.
Where the transient history of PCM solidification evolution was studied.
The governing equations of mass, momentum and energy are solved to study the solidification behavior inside the annulus geometry.
The fluid flow in the mushy zone was accounted for using the Darcy drag source term in momentum, and the liquid percentage in each cell was updated using the enthalpy-porosity method.
Thermal conditions of the outer cylinder insulated (adiabatic) and the inner cylinder at constant temperature (isothermal).
The results are presents as a temperature contour and liquid fraction distribution in the domain.
The predicted result shows the capturing phenomenon: primary heat conduction in all regions, then heat convection and conduction become dominant in the top and bottom regions, respectively.
The max.
and min.
temperature changes near the outer pipe surface during 16 hrs.
are 56.25% and 42.5% , respectively.
American Psychological Association (APA)
Abbas, Balqis A.& al-Hadithi, Mustafa Barazan. 2021. Numerical predication of solidification phenomena of phase change material in concentric annulus pipe. Iraqi Journal of Industrial Research،Vol. 8, no. 3, pp.25-38.
https://search.emarefa.net/detail/BIM-1366631
Modern Language Association (MLA)
Abbas, Balqis A.& al-Hadithi, Mustafa Barazan. Numerical predication of solidification phenomena of phase change material in concentric annulus pipe. Iraqi Journal of Industrial Research Vol. 8, no. 3 (2021), pp.25-38.
https://search.emarefa.net/detail/BIM-1366631
American Medical Association (AMA)
Abbas, Balqis A.& al-Hadithi, Mustafa Barazan. Numerical predication of solidification phenomena of phase change material in concentric annulus pipe. Iraqi Journal of Industrial Research. 2021. Vol. 8, no. 3, pp.25-38.
https://search.emarefa.net/detail/BIM-1366631
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 37-38
Record ID
BIM-1366631