Question

ansys如何计算通电导线的生热率？

如题：】要用到ansys的哪种分析方式？
谢谢

Answer 1

ansys计算通电导线的生热率的公式：发热功率/额定功率=生热率。

大电流导线主要用作电流互感器检定时的穿心导线，也可在其它大电流实验中使用。
大电流导线由导线和接线端两部分组成，铜焊联接，导线芯用多股铜丝绕制，每股直径为0.1mm；表皮为锦纶编织的绝缘保护套，其中10-50A为单层，100-3000A为双层。导线的长度和接线端的形式可按用户要求加工。其电流密度为5A每平方毫米，额定电压为660V。

Answer 2

电导线的生热率明显涉及两种求解，一个就是通电，导致电学分析，一个就是生热，导致热分析！因此，本人建议使用电热耦合方式来求解，也就是ansys提供的场耦合技术。电热分析有好几类，下面看看：
This analysis, available in the ANSYS Multiphysics product, can account for the following thermoelectric effects:

Joule heating - Heating occurs in a conductor carrying an electric current. Joule heat is proportional to the square of the current, and is independent of the current direction.

Seebeck effect - A voltage (Seebeck EMF) is produced in a thermoelectric material by a temperature difference. The induced voltage is proportional to the temperature difference. The proportionality coefficient is know as the Seebeck coefficient (α).

Peltier effect - Cooling or heating occurs at the junction of two dissimilar thermoelectric materials when an electric current flows through the junction. Peltier heat is proportional to the current, and changes sign if the current direction is reversed.

Thomson effect - Heat is absorbed or released in a non-uniformly heated thermoelectric material when electric current flows through it. Thomson heat is proportional to the current, and changes sign if the current direction is reversed.

Typical applications include heating coils, fuses, thermocouples, and thermoelectric coolers and generators. For more information, refer to Thermoelectrics in the Theory Reference for ANSYS and ANSYS Workbench.

Answer 3

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