ABSTRACT

Non-uniformity in flow is the veritable situation in the case of heat exchangers and a decisive aspect of the design of heat exchangers. The extensive experimental investigation is ushered for compact three-fluid heat exchanger with cross-flow configuration under three distinct flow non-uniformities at the inlet of central fluid. The maximum augmentation of 3.4% in cooling efficacy is marked for C1${\mathrm{C}}_1$${\mathrm{C}}_1$ and C2${\mathrm{C}}_2$${\mathrm{C}}_2$ configuration under FN3$\mathrm{F}{\mathrm{N}}_3$$\mathrm{F}{\mathrm{N}}_3$ (flow non-uniformity type 3) condition. Artificial neural network (ANN) prognosis is perpetrated and the thermo-hydraulic efficacy is more accurately predicted by ANN configuration 3-4-4 under flow non-uniformity with an absolute fraction of variance almost equal to one.

摘要

流动不均匀是热交换器的真实情况，也是热交换器设计的决定性方面。在中心流体入口处存在三种不同的流动不均匀性的情况下，针对具有错流结构的紧凑型三流体换热器进行了广泛的实验研究。冷却效果最大提升 3.4%C1${\mathrm{C}}_1$${\mathrm{C}}_1$和C2${\mathrm{C}}_2$${\mathrm{C}}_2$配置下F氮3$\mathrm{F}{\mathrm{氮}}_3$$\mathrm{F}{\mathrm{N}}_3$（流动不均匀性类型3）条件。在绝对方差分数几乎等于 1 的流动不均匀性下，进行人工神经网络 (ANN) 预测并通过 ANN 配置 3-4-4 更准确地预测热工水力功效。