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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >Minimization of Temheat Destruction Rate and Entropy Generation Rate in a 1D Transient Conductive Slab
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Minimization of Temheat Destruction Rate and Entropy Generation Rate in a 1D Transient Conductive Slab

机译：最小化1D瞬态导电板中的细丝破坏率和熵产生速率

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摘要

In this work, a comparison is made for the behavior of the total entropy generation and the total temheat destruction during a transient heat conduction process. A slab undergoing a 1D heat conduction is used as an example to illustrate the transient behavior of both entropy generation and temheat destruction rates. Formulations of the studied quantities are expressed mathematically and used to analyze the system. Next, plots of entropy generation rate and temheat destruction rate over time are generated. It was found that the entropy generation rate reaches a minimum before the steady state is reached. However, temheat destruction rate reaches a minimum only at a steady state. Additionally, causing a more dramatic temperature change in the system increases the steady-state value of temheat destruction rate, but it does not cause a minimum to appear before reaching the steady state, unlike for the entropy generation rate. The practical aspect and the application of temheat destruction minimization are in determining the steady temperature distribution in a complex geometry by minimizing the total temheat destruction through variational calculus or other numerical optimization techniques. Thus, this technique can be an alternative way of determining the steady temperature distribution in a given system.
机译：在这项工作中，对瞬态导热过程中的总熵产生的行为和总墨热破坏的行为进行了比较。使用待1D热传导的板坯作为示例，以说明熵产生和微热破坏率的瞬态行为。学习量的配方在数学上表达并用于分析系统。接下来，产生熵生成率和微热破坏率随时间的曲线。发现熵产生率在达到稳定状态之前达到最小值。然而，Temheat破坏率仅达到稳定状态。另外，在系统中引起更大的温度变化会增加微肠损坏率的稳态值，但在达到稳定状态之前不会导致最小出现，与熵产生速率不同。通过通过变分微积分或其他数值优化技术最小化全温性破坏来确定复杂几何体中的稳定温度分布的实际方面和施加。因此，该技术可以是确定给定系统中稳定温度分布的替代方法。

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