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Publication
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| Research Title |
Investment Cost Analysis with Structural Design of Concrete Duct Bank Power Cables |
| Date of Distribution |
20 November 2018 |
| Conference |
| Title of the Conference |
International Conference on Renewable Energy and Environment (ICREE 2018) |
| Organiser |
Vienna University of Technology |
| Conference Place |
Gusshausstrasse 25, 1040 |
| Province/State |
Vienna, Austria |
| Conference Date |
19 November 2018 |
| To |
21 November 2018 |
| Proceeding Paper |
| Volume |
18 |
| Issue |
1 |
| Page |
14-15 |
| Editors/edition/publisher |
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| Abstract |
Capital investment in underground duct bank cables is very
expensive. Therefore, the design and planning for underground power
cables is important. It is often done with analysis of the power demands
minimizing costs over the lifetime of the cables. This work presents an
evaluation of underground power cable ampacity and the total costs during
the anticipated operational life of the equipment. It was evaluated with
variation of concrete duct bank dimensions. Analysis of ampacity depends
on temperature. The thermal model of the current study uses a finite
element method. The total costs evaluated by the economic model in terms
of net present value analysis consist of the initial investment costs and the
value of losses over the life of the cable. These were based on installation
costs, load factors, annual load growth, the price of energy, the price of
demand charges and the forecast discount rate. The results show that cable
spacing parameters are a significant factor that influences ampacity.
Ampacity can be improved while reducing the losses in power cables. This
is because appropriate cable spacing can reduce the effect of Joule heating
from neighboring cables. However, this leads to increased construction
costs. The total costs of power cables over their lifetime can be reduced by
decreasing the horizontal distance between the center of a casing pipe and
the side edge of the concrete layer. This is because the contribution of
reduced construction costs is more than that of the effect of increased
losses. Therefore, the dimensions of the concrete duct bank significantly14
influence ampacity, the construction costs and the losses of power cables in
an analysis of total costs over the lifetime of power cables. |
| Author |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Oral |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
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