Thermal performance of underground power cables with constant and cyclic currents in presence of moisture migration in the surrounding soil

被引:29
作者
Freitas, DS [1 ]
Prata, AT [1 ]
deLima, AJ [1 ]
机构
[1] PIRELLISA, GEQC, CABLE DIV, BR-09111310 SANTO ANDRE, SP, BRAZIL
关键词
D O I
10.1109/61.517467
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A numerical methodology for thermal analysis of buried power cables in presence of heat and moisture migration in the surrounding soil is presented. The governing equations are solved via a finite volume methodology and both cable and soil are incorporated in the problem formulation, The developed program is versatile and user-friendly, and was implemented in a personal computer. Results are presented for constant and cyclic loads, stressing the importance of moisture migration in power cable design.
引用
收藏
页码:1159 / 1170
页数:12
相关论文
共 34 条
[1]  
Adler P., 1992, Porous Media: Geometry and Transports
[2]   POWER CABLE THERMAL-ANALYSIS WITH CONSIDERATION OF HEAT AND MOISTURE TRANSFER IN THE SOIL [J].
ANDERS, GJ ;
RADHAKRISHNA, HS .
IEEE TRANSACTIONS ON POWER DELIVERY, 1988, 3 (04) :1280-1288
[3]  
BORIES SA, 1991, NATO ADV SCI I E-APP, V196, P391
[4]  
BRAATEN M, 1986, NUMER HEAT TRANSFER, V9, P559, DOI 10.1080/10407788608913493
[5]   THERMAL-INSTABILITY IN BURIED CABLE BACKFILLS [J].
BRANDON, TL ;
MITCHELL, JK ;
CAMERON, JT .
JOURNAL OF GEOTECHNICAL ENGINEERING-ASCE, 1989, 115 (01) :38-55
[6]  
COUVILLION RJ, 1981, THESIS GEORGIA I TEC
[7]  
*CYME INT CO, 1991, CABL AMP PROGR VERS
[8]   SOIL THERMAL AND HYDROLOGICAL CHARACTERISTICS IN DESIGNING UNDERGROUND CABLES [J].
DONAZZI, F ;
OCCHINI, E ;
SEPPI, A .
PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1979, 126 (06) :506-516
[9]   SUSCEPTIBILITY TO DRYING OF UNSATURATED SOIL NEAR WARM IMPERMEABLE SURFACES [J].
EWEN, J .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1990, 33 (02) :359-366
[10]   CALCULATION OF THERMAL FIELDS OF UNDERGROUND CABLES USING THE BOUNDARY ELEMENT METHOD [J].
GELA, G ;
DAI, JJ .
IEEE TRANSACTIONS ON POWER DELIVERY, 1988, 3 (04) :1341-1347