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Faculty of Engineering
Document Details
Document Type
:
Article In Journal
Document Title
:
Experimental Study for Drying-out of Soil Around Underground Power Cables
دراسة معملية للطبقات المجففة حول كابلات القوى الأرضية
Subject
:
Electrical Engineering
Document Language
:
English
Abstract
:
Six types of soil were investigated for studying the drying-out phenomenon and the thermal behaviour of the soil around high power cables. Specific gravity, grain size distribution, permeability and compaction tests were carried out for six types of soil. The measured pF-curves and the recorded distributions of temperature with both time and distance at the stated conditions are presented. Also, the distributions of moisture with distance are given. From the analysis of the temperature distributions with both time and distance; it was found that the temperatures of some soil points are rapidly increased. From the analysis of the measured distributions of moisture with distance, it was also found that all soil points of rapidly increased temperature had approximately zero moisture content. So, the discontinuity found at the measured temperature distributions curves indicated the separation between two zones with high respectively low thermal resistivities or with dry respectively moist soil. Drying-out phenomenon started at 54°C in sand 2 and at 57°C in sands 1 and 3. During heating processes, it was noticed that some types of sand lose their moisture content faster than other sand types. According to the field study of the thermal behaviour of the soil around buried cables, the soil drying-out was found during July and August. This was due to the heat emanating from the cables. This period of year was characterized by a high ambient temperature and zero annual rainfall.
ISSN
:
1319-1047
Journal Name
:
Engineering Sciences Journal
Volume
:
9
Issue Number
:
1
Publishing Year
:
1417 AH
1997 AD
Article Type
:
Article
Added Date
:
Thursday, January 14, 2010
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
أسامة السيد جودة
GOUDA, OSAMA ALSYED
Investigator
Doctorate
Files
File Name
Type
Description
24813.pdf
pdf
Experimental Study for Drying-out of Soil Around Underground Power Cables
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