Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable

This work is on the experimental investigation into feasibility of underwater power transmission without using the traditional cross-linked polyethylene (XLPE) technology. It utilizes the vast advantages of overhead transmission lines over XLPE based cables by suspending bare high voltage cables wit...

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Main Author:	Lau, Alvin Kouk Shenn
Format:	Thesis
Language:	English
Published:	2021
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://ir.unimas.my/id/eprint/36603/1/ALVIN.pdf
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id	my-unimas-ir.36603
record_format	uketd_dc
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Lau, Alvin Kouk Shenn Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable
description	This work is on the experimental investigation into feasibility of underwater power transmission without using the traditional cross-linked polyethylene (XLPE) technology. It utilizes the vast advantages of overhead transmission lines over XLPE based cables by suspending bare high voltage cables within submarine pipes at the star point of insulators which are spaced to minimize sag. The technology of submarine pipes has been well established by the oil and gas industry, so this research furthers that development by utilizing them for electric transmission. This research is focused on determine the optimal radius of carbon steel pipe where there is no eddy current loss when electric cables suspended inside the pipe. Eddy current plus joule heating levels were made by measuring the heat level on different radius of the pipes for various changes in parameters such as current, voltages in alternating current (AC) and direct current (DC). An open-sourced machine learning algorithm was created to allow the machine to analyse more result in the future by different user and different parameter value, which produce more accurate pipe radius calculation. The result significantly shows that with 50 A electricity carrying cable suspended inside a 1.11 cm pipe radius, the temperature of the pipe increased by 27.6 °C while no temperature changes when the optimal pipe were chosen for different value of electric current. The conclusion of this research shows that using DC and high voltage are the optimal mode of power transmission because power loss through heat energy is minimal compared to AC. Keywords: Undersea Power Cables, cross-linked polyethylene, Eddy Current, Machine Learning Algorithm
format	Thesis
qualification_level	Master's degree
author	Lau, Alvin Kouk Shenn
author_facet	Lau, Alvin Kouk Shenn
author_sort	Lau, Alvin Kouk Shenn
title	Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable
title_short	Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable
title_full	Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable
title_fullStr	Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable
title_full_unstemmed	Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable
title_sort	determine the optimal diameter of carbon steel pipes around undersea power cable
granting_institution	Universiti Malaysia Sarawak
granting_department	Faculty of Engineering
publishDate	2021
url	http://ir.unimas.my/id/eprint/36603/1/ALVIN.pdf
_version_	1783728476788883456
spelling	my-unimas-ir.366032023-06-22T07:56:59Z Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable 2021-11-05 Lau, Alvin Kouk Shenn TK Electrical engineering. Electronics Nuclear engineering This work is on the experimental investigation into feasibility of underwater power transmission without using the traditional cross-linked polyethylene (XLPE) technology. It utilizes the vast advantages of overhead transmission lines over XLPE based cables by suspending bare high voltage cables within submarine pipes at the star point of insulators which are spaced to minimize sag. The technology of submarine pipes has been well established by the oil and gas industry, so this research furthers that development by utilizing them for electric transmission. This research is focused on determine the optimal radius of carbon steel pipe where there is no eddy current loss when electric cables suspended inside the pipe. Eddy current plus joule heating levels were made by measuring the heat level on different radius of the pipes for various changes in parameters such as current, voltages in alternating current (AC) and direct current (DC). An open-sourced machine learning algorithm was created to allow the machine to analyse more result in the future by different user and different parameter value, which produce more accurate pipe radius calculation. The result significantly shows that with 50 A electricity carrying cable suspended inside a 1.11 cm pipe radius, the temperature of the pipe increased by 27.6 °C while no temperature changes when the optimal pipe were chosen for different value of electric current. The conclusion of this research shows that using DC and high voltage are the optimal mode of power transmission because power loss through heat energy is minimal compared to AC. 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Determine the Optimal Diameter of Carbon Steel Pipes Around Undersea Power Cable

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