摘要
利用热学原理对空气中敷设电缆的温度场进行了分析。建立了基本模型、热对流方程和边界条件,用有限元计算了空气中敷设电缆的载流量在额定值时周围空气中温度的变化过程,得到了温度变化曲线。
This paper analyzed the temperature field of power cable in air by using thermal principle. The basic model, convection equation and boundary conditions were established. The temperature change process in surrounding air was calculated by finite element method when the power cable has rate current , and the temperature curve was got.
出处
《现代建筑电气》
2011年第8期32-34,共3页
Modern Architecture Electric
关键词
电缆
温度场
热学分析
有限元法
power cable
temperature field
thermal analysis
finite element method
