热分布在铜管气缸与电流电流

Rofila El maghfiroh, M. B. Zaman
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引用次数: 0

摘要

应用问题(机械、土木、化学或电气)与铜等材料的使用密切相关。铜具有良好的导电性和导热性。通过对以电流为热源的热传导方程进行数值分析,可以了解铜线的热分布情况。数值分析采用的是 Crank-Nicolson 方法中的有限差分方案。铜线的最高温度升高,但在 15 分钟的时间内,温度变化平均减小 3.55%。根据对数函数方法 f(x) = 1.9023 lnx + 20.176.摘要适用问题(机械、法律、化学或电气)与铜等材料的使用密切相关。铜材料具有良好的导电性和导热性。通过对以电流为热源的热传导方程进行数值分析,可以确定铜线的热分布。数值研究采用了 Crank-Nicolson 方法中的中心差分方案。铜线的最高温度升高了,但在每个时间级别(即 15 分钟)上,热量变化平均减少了 3.55%。根据近似对数函数 f (x) = 1.9023 lnx + 20.176 预测 24 小时内铜线的最高温度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DISTRIBUSI PANAS PADA KAWAT TEMBAGA SILINDER DENGAN ARUS LISTRIK
Permasalahan terapan (mekanik, sipil, kimia ataupun listrik), sangat berkaitan dengan penggunaan material, misalnya tembaga. Material tembaga memiliki konduktivitas listrik dan panas yang baik. Distribusi panas kawat tembaga dapat diketahui dengan melakukan analisis numerik pada persamaan konduksi panas dengan arus listrik sebagai sumber panas. Analisis numerik dilakukan dengan skema beda hingga pusat yang diterapkan pada metode Crank-Nicolson. Suhu maksimum kawat tembaga meningkat, tetapi perubahan suhu menurun dengan rata-rata 3,55% disetiap level waktu yaitu 15 menit. Prediksi suhu maksimum kawat tembaga selama 24 jam sesuai pendekatan fungsi logaritma f(x) = 1,9023 lnx + 20,176.AbstractThe applicable problems (mechanical, legal, chemical or electrical) are closely linked to the use of materials such as copper. Copper material has excellent electrical and thermal conductivity. It is possible to determine the heat distribution of copper wire by conducting numerical analysis on the heat conduction equation with electric current as a heat source. Numerical research was performed with a central differencing scheme applied to the Crank-Nicolson method. The maximum temperature of copper wire increased, but the heat change decreased by an average of 3.55% at each time level, namely 15 minutes. Predict the maximum temperature of copper wire for 24 hours according to the approximate logarithmic function f (x) = 1.9023 lnx + 20.176.
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