Research on heat transfer and flow resistance performance of shutter baffle heat exchanger with triangle tube layout in shell side

CFD numerical simulation and periodic whole cross-section computation model are adopted to analyze influence laws of some structural parameters, such as assembly mode of shutter baffles, distance between two adjacent shutter baffles, inclination angle of strips on shutter baffle, width of strips, on heat transfer and flow resistance performance of shutter baffle heat exchanger with triangle tube layout in shell side. The correctness and accuracy of numerical simulation method and its results is confirmed by experiment. Distance between two adjacent shutter baffles and inclination angle of strips have significant effect on heat transfer and flow resistance performance, while the assembly mode of shutter baffles and width of strips have no significant effect, it is recommended that the distance between two adjacent shutter baffles should be within 150 mm, and the inclination angle of strips should be within 45°.