In this work, the steady-state heat transfer characteristics of REBCO tape and impregnated Roebel cable are studied numerically. By establishing three-dimensional finite element models of tape and impregnated cable, the temperature-dependent equivalent thermal conductivities of REBCO tapes and impregnated Roebel cables are estimated based on numerical homogenization technique. Effects of different geometric and material parameters are discussed. The steady-state heat transfer characteristics of a transposed tape in Roebel cable are further investigated. The equivalent thermal conductivities of REBCO tape or impregnated cable show strong anisotropy. Various sensitivities to geometric and material parameters are observed in equivalent thermal conductivities. The total heat flux distribution of the transposed tape is closely related to the Roebel angle and the curvature radius at outer corner or inner corner of this region. The corresponding structure and components should be optimized in actual application.

在这项工作中，对 REBCO 胶带和浸渍 Roebel 电缆的稳态传热特性进行了数值研究。通过建立带材和浸渍电缆的三维有限元模型，基于数值均质化技术估计了REBCO带材和浸渍Roebel电缆的温度相关等效热导率。讨论了不同几何和材料参数的影响。进一步研究了 Roebel 电缆中转置带的稳态传热特性。REBCO 胶带或浸渍电缆的等效导热率表现出很强的各向异性。在等效热导率中观察到对几何和材料参数的各种敏感性。转置带的总热通量分布与该区域外角或内角的Roebel角和曲率半径密切相关。相应的结构和部件应在实际应用中进行优化。