Millistructured plate reactors are compact, robust and flexible devices that combine high heat transfer rates with considerable flow rates. They are thus an ideal tool for process intensification in the chemical industry. In the present work, an innovative mathematical model for the ART plate reactor PR37 of the Ehrfeld Mikrotechnik GmbH is developed which covers the three-dimensional heat transfer between process and utility channel with low computational effort. Nusselt correlations have been established for the process and utility channel by fitting the model to a large number of experiments. Significant intensification of the heat transfer is reached due to formation of secondary flows in the meandering, periodically diverging/converging process channels for Reynolds numbers larger than 11. The heat transfer coefficients in the process channels exceed values of 5 kW m⁻² K^-1 despite relatively low Reynolds numbers and comparatively large hydraulic diameters of around 2 mm. This demonstrates the suitability of this reactor for highly exothermic reaction.

毫米结构板式反应器是紧凑，坚固和灵活的装置，将高传热率和可观的流速结合在一起。因此，它们是化学工业过程强化的理想工具。在当前的工作中，开发了用于Ehrfeld Mikrotechnik GmbH的ART板式反应器PR37的创新数学模型，该模型以较低的计算量覆盖了过程和实用通道之间的三维传热。通过将模型拟合到大量实验中，已经为过程和实用渠道建立了Nusselt相关性。由于在大于11的雷诺数的曲折，周期性发散/会聚的工艺通道中形成二次流，因此显着增强了热传递。尽管雷诺数相对较低，并且水力直径约为2 mm，但其值为^-2  K ^-1。这证明了该反应器适用于高放热反应。