Page 199 - Packed bed columns for absorption, desorption, rectification and direct heat transfer
P. 199

189




                                                                                            (47)
                                                  Pa


                          and


                                                            J/3           i/e
                                 f)     a 1/6                                               (48)





                          where


                                             g                                              (49)
                                                        -o.es
                                          U




                                  Obviously, the last three equations are not dimensionless.
                                  The values of C s for different random packings are presented in Table
                           10.
                                  For calculation of the gas velocity in the flooding point Billet [177]
                          proposed the equation



                                                                                             (50)
                                              J/2



                           where


                                              g                                              (51)
                                                         1-0,39
                                                 0,2
   194   195   196   197   198   199   200   201   202   203   204