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Representation of transient heat transfer as the equivalent thermal network (ETN)

机译:将瞬态热传递表示为等效热网络(ETN)

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摘要

The parametric identification method was used for heat exchanger dynamics investigation. The transfer function of numerical models demonstrated oscillatory character in many cases. The thermo-electric analogy was used for transient heat transfer representation as the equivalent thermal network (ETN). The mutual changing of potential and kinetic energy in the electric network correspond to the oscillation. For this reason thermal capacity C, accumulating potential energy and thermal inductivity L - new element, accumulating kinetic energy were introduced in the ETN. The boundary values of L, by which oscillatory character of ETN should be observed and the values of L were calculated.
机译:参数识别方法用于换热器动力学研究。数值模型的传递函数在许多情况下都表现出振荡特性。使用热电类比法将瞬态传热表示为等效热网络(ETN)。电网中势能和动能的相互变化对应于振荡。因此,在ETN中引入了热容量C,累积势能和热感应系数L-新元素,累积动能。 L的边界值,应观察ETN的振荡特性,并计算L的值。

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