It is crucial to identify flow regimes/patterns in order to calculate the pressure drop and heat transfer coefficient (HTC) with high accuracy in flow boiling. Researchers have not paid too much attention to the two-phase (2-phase) phenomena and the influence of the 2-phase flow parameters on the performance of absorber tubes. This parametric study sheds the light on some of the well-known and widely used 2-phase flow models/correlations and their impact on absorber performance prediction. The results of 2-phase flow models were compared with experimental data for refrigerants and water to validate these models. Different HTC models are studied. However, the main parameters affecting the absorber tube performance are analyzed and validated. The results showed that for the refrigerant R134a case Wojtan et al. HTC model exhibited the best fit with the experimental data, while in the case of water Shah correlation found to be the best. Moreover, for the pressure drop, Lockhart–Martinelli model showed the best agreement with the experimental data especially at high qualities.

至关重要的是，确定流态/模式，以便在流沸腾过程中以高精度计算压降和传热系数（HTC）。研究人员对两相（两相）现象以及两相流动参数对吸收器管性能的影响并不太关注。这项参数研究揭示了一些众所周知且广泛使用的两相流模型/相关性及其对吸收器性能预测的影响。将两相流模型的结果与制冷剂和水的实验数据进行比较，以验证这些模型。研究了不同的HTC模型。但是，分析和验证了影响吸收器管性能的主要参数。结果表明，对于制冷剂R134a，Wojtan等人。HTC模型表现出与实验数据的最佳拟合，而在水的情况下，Shah相关性最佳。此外，对于压降，洛克哈特-马丁内利模型显示出与实验数据的最佳吻合，尤其是在高质量条件下。