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Thermal performance of diffusion-bonded compact heat exchangers

机译:扩散粘合紧凑型热交换器的热性能

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This work presents an experimental and theoretical evaluation of the thermal performance of a square straight diffusion-bonded stainless steel compact heat exchanger. A one-dimensional steady-state thermal model was proposed to predict the thermal characteristics of the heat exchanger. To validate the model and to study the thermal behavior of the heat exchanger, an experimental test apparatus was developed. The heat exchanger was tested in several combinations of Reynolds ranging from 2600 to 7500, representing transition to turbulent regimes. The temperatures were varied from 70 degrees C to 80 degrees C for the water and from 25 degrees C to 42 degrees C for the air, at the inlet of the heat exchanger, respectively. A good agreement between the experimental data and the analytical model was obtained.
机译:这项工作提出了一种实验和理论评价,对方形直流粘合的不锈钢紧凑型热交换器的热性能进行了实验和理论评价。 提出了一维稳态热模型来预测热交换器的热特性。 为了验证模型并研究热交换器的热行为,开发了一种实验测试装置。 在雷诺的几种组合中测试热交换器,范围为2600至7500,代表到湍流制度的转变。 在热交换器的入口处分别在热交换器的入口处从70摄氏度和25℃至42摄氏度的温度从70摄氏度和25摄氏度变化。 获得了实验数据与分析模型之间的良好一致性。

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