A series of works was conducted on determining the coefficient of heat transfer in a bundle of heat-exchange tubes in transverse flow of lead in the base oxygen regime and with oxygen concentration on the saturation line. The object of investigation was an experimental model consisting of a horizontal bundle of six rows of smooth tubes with four tubes per row. The investigation was conducted with sub- and supercritical pressure in the water loop. It was confirmed that the oxygen content in lead significantly affects the coefficient of heat transfer. In the experimental range of velocities up to 0.3 m/sec, the coefficients of heat transfer in the base oxygen regime are two to three times higher than for lead with oxygen concentration on the saturation line. In agreement with other studies, it was found that for lead with oxygen concentration on the saturation line the coefficient of heat transfer is velocity-independent in a narrow section.

中文翻译：

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含氧量对重液态金属冷却剂横向流动蒸汽发生管传热的影响

进行了一系列工作，以确定在基本氧状态和饱和线上氧浓度下铅横向流动中一束热交换管中的传热系数。研究对象是一个实验模型，该模型由六排光滑管的水平束组成，每排四根管。研究是在水回路中以亚临界和超临界压力进行的。已证实铅中的氧含量显着影响传热系数。在速度高达 0.3 m/sec 的实验范围内，基本氧气状态下的传热系数比氧浓度在饱和线上的铅高两到三倍。与其他研究一致，