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The use of porous metals in the design of heat exchangers to increase the intensity of heat exchange

机译:在热交换器设计中使用多孔金属来增加热交换的强度

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摘要

Heat exchangers are widely used in heat supply systems. To increase the efficiency of heat supply systems, heat exchangers with porous metals are proposed to design. There was a test facility set up to study new types of heat exchangers. The countercurrent flow of heat carriers was activated in those heat exchangers. Freon moved through the heat exchanger pores, and water moved through the inner tubes. It should be noted that the porous materials in the heat exchangers differed in the coefficient of porosity. To be compared, one of the heat exchangers did not contain any porous material. The first test cycle proved the feasibility of using porous metals in heat exchange equipment. Afterwards, a simplified mathematical model of the heat exchanger was compiled. Such an analytical form makes a solution convenient for engineering calculations. Numerical calculations based on this model were compared with the experimental data. Heat transfer intensity of materials with different porosity was compared.
机译:热交换器广泛用于供热系统。为了提高供热系统的效率,提出了具有多孔金属的热交换器。有一个测试设施,研究了新型的热交换器。热载体的逆流流动在这些热交换器中被激活。氟利昂通过热交换器毛孔,水通过内管移动。应当注意,热交换器中的多孔材料在孔隙率的系数中不同。要比较,其中一个热交换器不含任何多孔材料。第一个测试周期证明了在热交换设备中使用多孔金属的可行性。然后,编译了换热器的简化数学模型。这种分析形式使得能够方便的工程计算。将基于该模型的数值计算与实验数据进行比较。比较了不同孔隙率的材料的传热强度。

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