Abstract

The region of physical feasibility of heat exchange systems in the space of their thermodynamic indicators (heat load, dissipation, and thermal conductivity) is constructed in this work. Criteria of thermodynamic perfection for typical two-flow cells are calculated. A condition of thermodynamic equivalence of heat exchange systems is given, and an algorithm for constructing a multiflow system equivalent to a two-flow heat exchanger is proposed. The cases of variable heat capacity, change of the phase state, and different flow hydrodynamics are considered. The constraints on the temperatures of all or some of the flows at the inlet and outlet of the heat exchange system are taken into account. The synthesis involves the choice of the structure of contacts, the values of free parameters of flows, and the distribution of contact areas and heat loads between two-flow heat exchange cells.

中文翻译：

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根据热力学参数的热交换系统的物理可行性和合成

摘要

这项工作构建了热交换系统在其热力学指标（热负荷、耗散和热导率）空间中的物理可行性区域。计算了典型双流动池的热力学完美标准。给出了换热系统的热力学等效条件，并提出了构造等效于两流换热器的多流系统的算法。考虑了可变热容、相态变化和不同流动流体动力学的情况。考虑对热交换系统入口和出口处的全部或部分流的温度的约束。该综合涉及接触结构的选择、流动自由参数的值以及两流热交换单元之间的接触面积和热负荷的分布。