Abstract The article presents the construction of modular a shell and tube heat exchanger, which is proposed for food industry. Authors analyzed possibilities of applying this type of heat exchanger to recover waste heat from a heating boiler used in food production companies. Recovered waste heat can be utilized for palm oil heating, which is a common ingredient used in food companies. This construction of heat exchanger allows controlling a heating power of realized process by simple adjusting area of heat transfer by a system of valves, by disconnecting subsequent sections of the heat exchanger from the plant, when heat requirement is decreasing. The research was divided into two parts. First analytical calculations, related to the design of the heat exchanger were realized. Subsequently, the power of heat exchanger obtained during analytical calculations was compared to numerical calculations. The numerical analysis allowed to demonstrate that the flow of exhaust gases through the shell side of the heat exchanger is not homogenous. Prepared numerical calculations showed the non-uniform character of flow through the subsequent modules of the heat exchanger.

中文翻译：

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模块化换热器中流体流动与传热现象分析

摘要 本文介绍了一种模块化壳管式换热器的结构，该换热器是针对食品工业提出的。作者分析了应用这种类型的热交换器从食品生产公司使用的加热锅炉中回收废热的可能性。回收的废热可用于棕榈油加热，这是食品公司常用的原料。当热量需求减少时，通过将热交换器的后续部分与设备断开连接，通过阀门系统简单地调整传热面积，热交换器的这种结构允许控制实现过程的加热功率。研究分为两部分。实现了与换热器设计相关的第一次分析计算。随后，将分析计算过程中获得的换热器功率与数值计算进行了比较。数值分析允许证明通过热交换器壳侧的废气流不是均质的。准备好的数值计算显示了通过热交换器的后续模块的流动的非均匀特性。