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Three-fluid heat exchangers with three thermal communications Part A: general mathematical model

机译:具有三个热连通的三流体热交换器A部分:通用数学模型

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摘要

A general, simple and easy to implement analytical model that enables design and analysis of three-fluid heat exchangers with three thermal communications for all flow arrangements is developed. The model is shown to reduce to either a three-fluid, two thermal communications model or the traditional two-fluid heat exchanger model under proper conditions. Six non-dimensional design parameters are identified and their effect on the temperature distributions of the different fluid streams is presented. The model shows that the presence of three coupled thermal interactions makes temperature distributions of the different streams difficult to assess due to slight changes in the design parameters.
机译:开发了一种通用,简单且易于实现的分析模型,该模型能够设计和分析具有所有流布置的三个热连通的三流体热交换器。该模型显示在适当条件下可简化为三流体,两个热交换模型或传统的二流体热交换器模型。确定了六个无量纲设计参数,并介绍了它们对不同流体流的温度分布的影响。该模型表明,由于设计参数的微小变化,三种耦合的热相互作用的存在使不同流的温度分布难以评估。

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