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Pretest in forced circulation molten salt heat transfer loop: Studies with thermia-B

机译:强制循环熔融盐传热回路中的预测试:Thermia-B的研究

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Molten salts have potential application as an efficient heat transfer medium in a primary and secondary heat exchanger in high temperature next-generation nuclear power plant. Thermal hydraulic studies are vital for reliable and cost-effective design of the nuclear power plant. Therefore heat transfer study of molten salts will play a vital role in this area. In this work, an experimental system was designed to study thermal hydraulics of the molten salt system up to 700℃. This work describes the pretest results of the experimental facility for extremely corrosive molten fluoride salts with a simulant thermia-B as the working fluid. In the present work, the details of the system are discussed and thermal-hydraulic data for heat transfer fluid thermia-B has been presented. Experiments were carried out at Reynolds number in the range of 4500 to 40 500 and Prandtl number in the range of 34 to 144. Effect of Reynolds number, melting tank temperature, and heat input to test section on forced convective heat transfer was studied under turbulent conditions. Comparison of the experimental data with different empirical correlations has been presented.
机译:熔融盐在高温下一代核电站的一次和二次热交换器中作为一种有效的传热介质具有潜在的应用。热力水力研究对于可靠且具有成本效益的核电站设计至关重要。因此,熔融盐的传热研究将在这一领域发挥至关重要的作用。在这项工作中,设计了一个实验系统来研究高达700℃的熔盐系统的热力学。这项工作描述了以模拟的Thermia-B作为工作液对腐蚀性极强的熔融氟化盐的实验设备的预测试结果。在目前的工作中,系统的细节被讨论,并且传热流体热-B的热-液压数据已经被提出。在雷诺数为4500至40 500的范围内进行实验,普朗特数为在34至144的范围内进行。在湍流条件下研究了雷诺数,熔融槽温度和测试段热量输入对强制对流换热的影响条件。已经提出了具有不同经验相关性的实验数据的比较。

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