Thermal performance of underground power cables with constant and cyclic currents in presence of moisture migration in the surrounding soil
Thermal performance of underground power cables with constant and cyclic currents in presence of moisture migration in the surrounding soil
复制标题
周围土壤水分迁移情况下恒定电流和循环电流下地下电力电缆的热性能
DOI：
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复制
发表时间：
1996
期刊：
影响因子：
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通讯作者：
A. Lima
中科院分区：
文献类型：
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作者：
D. S. Freitas;A. T. Prata;A. Lima
提出了一种在周围土壤中存在热量和水分迁移的情况下对埋地电力电缆进行热分析的数值方法。控制方程通过有限体积方法求解，并且电缆和土壤都包含在问题公式中。所开发的程序具有通用性和用户友好性，并在个人计算机上实现。给出了恒定负载和循环负载的结果，强调了水分迁移在电力电缆设计中的重要性。
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.