Abstract The thermal-hydraulic performance of a new parallel-flow shell and tube heat exchanger (STHX) with equilateral cross-sectioned wire coil (HCBetwc-STHX) is investigated in turbulent regime. Four different surrogate models are established to predict the thermal-hydraulic performance. Their merits and drawbacks are illustrated. The results show that the Nuetwc/NuRRB and f etwc/f RRB are in the range of 1.1638–1.855 and 4.078–16.062, respectively. The precision of CFM is the lowest, whereas the precision of radial basis function + artificial neural network and Kriging model is the highest. A good balance can be achieved by response surface methodology between precision and cost. Finally, a general analysis procedure is presented for the predicting method of thermal-hydraulic performance of different STHX with relatively small cost and high precision.

中文翻译：

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不同代理模型的新型平行流管壳式换热器热工水力性能预测研究

摘要 研究了具有等边截面线盘管（HCBetwc-STHX）的新型平行流壳管式换热器（STHX）在湍流状态下的热工水力性能。建立了四种不同的替代模型来预测热工水力性能。说明了它们的优点和缺点。结果表明，Nuetwc/NuRRB 和 f etwc/f RRB 分别在 1.1638-1.855 和 4.078-16.062 的范围内。CFM的精度最低，径向基函数+人工神经网络和克里金模型的精度最高。通过响应面方法可以在精度和成本之间实现良好的平衡。最后，