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Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan

The key concern of this study is to develop an underground cable tunnel ventilation system using the analytical method to determine the best inlet velocity and air flow to create an environment that is close to the outside ambient air. This is done in order for people to occupy the tunnel in for rep...

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Main Author: Janash, S.Pathamnathan
Format: Thesis
Published: 2018
Subjects:
T Technology (General)
TJ Mechanical engineering and machinery
Online Access:http://studentsrepo.um.edu.my/9027/7/janash.pdf
http://studentsrepo.um.edu.my/9027/
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spelling my.um.stud.90272021-02-16T23:39:31Z Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan Janash, S.Pathamnathan T Technology (General) TJ Mechanical engineering and machinery The key concern of this study is to develop an underground cable tunnel ventilation system using the analytical method to determine the best inlet velocity and air flow to create an environment that is close to the outside ambient air. This is done in order for people to occupy the tunnel in for repair and maintenance work. For the analysis of the 90m long tunnel with rectangular and circular manholes, the Computational Fluid Dynamics (CFD)for steady state conditions was be used. The CFD software ANSIS Fluent was used in the analysis of the tunnel system. This tunnel will house the XLPE 132 IC 1200mm2, the cable will be routed in a trefoil configuration per-circuit and there will be 4 circuits running in this tunnel. Using various airflow configurations, the study was conducted to determine the best internal temperature conditions at peak operation conditions. The heat generated by the cable is calculated to be 58.540C however for the purpose of the simulation the temperature is assumed to 600C. The ambient temperature which is given more focus will be 330C.This is because according to the meteorological department for Petaling Jaya area the average temperature is 330C. However, there were two other temperatures also was used in the analysis with the same variant of air flows. This was done to observe the effects of the velocity on this various temperature which were higher and lower than the main temperature in question. From the total analysis that was carried out it can be determined that the most suitable inlet air velocity is 4m/s with the air flow of 15000CFM. With this configuration the internal ambient temperature of 34.740C can be achieved. This temperature is conducive enough for repair and maintenance work to be carried in the cable tunnel. 2018-06 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/9027/7/janash.pdf Janash, S.Pathamnathan (2018) Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan. Masters thesis, University of Malaya. http://studentsrepo.um.edu.my/9027/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic T Technology (General)
TJ Mechanical engineering and machinery
spellingShingle T Technology (General)
TJ Mechanical engineering and machinery
Janash, S.Pathamnathan
Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan
description The key concern of this study is to develop an underground cable tunnel ventilation system using the analytical method to determine the best inlet velocity and air flow to create an environment that is close to the outside ambient air. This is done in order for people to occupy the tunnel in for repair and maintenance work. For the analysis of the 90m long tunnel with rectangular and circular manholes, the Computational Fluid Dynamics (CFD)for steady state conditions was be used. The CFD software ANSIS Fluent was used in the analysis of the tunnel system. This tunnel will house the XLPE 132 IC 1200mm2, the cable will be routed in a trefoil configuration per-circuit and there will be 4 circuits running in this tunnel. Using various airflow configurations, the study was conducted to determine the best internal temperature conditions at peak operation conditions. The heat generated by the cable is calculated to be 58.540C however for the purpose of the simulation the temperature is assumed to 600C. The ambient temperature which is given more focus will be 330C.This is because according to the meteorological department for Petaling Jaya area the average temperature is 330C. However, there were two other temperatures also was used in the analysis with the same variant of air flows. This was done to observe the effects of the velocity on this various temperature which were higher and lower than the main temperature in question. From the total analysis that was carried out it can be determined that the most suitable inlet air velocity is 4m/s with the air flow of 15000CFM. With this configuration the internal ambient temperature of 34.740C can be achieved. This temperature is conducive enough for repair and maintenance work to be carried in the cable tunnel.
format Thesis
author Janash, S.Pathamnathan
author_facet Janash, S.Pathamnathan
author_sort Janash, S.Pathamnathan
title Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan
title_short Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan
title_full Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan
title_fullStr Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan
title_full_unstemmed Heat transfer analysis in underground cable tunnel using computational fluid dynamics / Janash S.Pathamnathan
title_sort heat transfer analysis in underground cable tunnel using computational fluid dynamics / janash s.pathamnathan
publishDate 2018
url http://studentsrepo.um.edu.my/9027/7/janash.pdf
http://studentsrepo.um.edu.my/9027/
_version_ 1738506215979220992
score 13.211869

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