Abstract In this analysis a 1-D steady state heat transfer was accomplished for tube and shell type heat exchanger with parallel flow configuration. Molten salt was regarded as a secondary flow that runs in the shell part of the heat exchanger whereas the saturated water was regarded as the primary flow that flows in the tube part of heat exchanger. The analysis is done for 0.1 kg/s mass flow rate of the primary flow and for various mass flow rate of the secondary flow ranging from 0.1 kg/s to 0.6 kg/s. The heat exchanger's thermal characteristics, such as, variation in steam quality and two-phase convective coefficient of the saturated water alongside the length of the tube are collected from the analysis. In addition, temperature profiles for primary and secondary flows are presented in this article. It is found that for the considered geometry of the heat exchanger and the boundary conditions, a 0.376 kg/s mass flow rate of molten salt is required to convert the 0.1 kg/s mass flow rate of primary flow into saturated steam. As a result, a mass flow rate of molten salt which is greater than 0.376 kg/s is required to super heat the primary fluid (water).

中文翻译：

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具有两相传热过程的平行流换热器的数值模拟

摘要 在该分析中，为具有平行流配置的管壳式换热器完成了一维稳态传热。熔盐被认为是在换热器壳部分流动的二次流，而饱和水被认为是在换热器管部分流动的一次流。分析是针对一次流的 0.1 kg/s 质量流量和从 0.1 kg/s 到 0.6 kg/s 的各种二次流质量流量进行的。从分析中收集换热器的热特性，例如蒸汽质量的变化和饱和水沿管长度的两相对流系数。此外，本文还介绍了一次流和二次流的温度曲线。发现对于所考虑的换热器几何形状和边界条件，需要 0.376 kg/s 的熔盐质量流量才能将一次流的 0.1 kg/s 质量流量转换为饱和蒸汽。因此，需要大于 0.376 kg/s 的熔盐质量流量来过热初级流体（水）。