[HTRI]警告分析

1.The u-bend span length (u-bend diameter + straight length along both legs from supports to bend tangent) exceeds the TEMA maximum unsupported span length.                               
                                                                                       
2.The outlet nozzle velocity is greater than the tube exit velocity where momentum pressure drop between the tube exit and the outlet nozzle is not included in the calculations.  This pressure drop can be significant in a vacuum condenser.  Ensure you have margin for this additional pressure loss.                                                                                       


如何消除这两个警告？？？谢谢！                                                                                                                                               

使用支撑板，加大管程出品管的直径。