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Dust Explosions:An Overview  4 7












                                                             4


                                                                 -
                                                             3   -
                                                                 m
                                                                 L
                                                                 m
                                                             2   =
                                                                  5
                                                                 nr
                                                             1



                                                             0
                     0       10   12   I&   16   18   20   22
                            OXYGEN CONTENT IN GAS 1~01. Yo)


              Figure 3.42   The influence of oxygen content in gas on the maximum pressure and maximum rate
              ofpressure rise in explosions of  100 g/m3 of <74 ym ethyl cellulose molding powder in a  7.2 liter
              Hartmann bomb (From Hartmann,  1948).




















               a
               5
               E
               3
               z                                      Figure 1.43  The influence of oxygen content in
               r
              E                                       gas on the minimum explosible concentration  of
                   0
                    C    25   50   75   100   125     coal dust  (high volatile content)  versus particle
                        MEAN PARTICLE  DIAMETER  [pml   size (From Hertzberg and Cashdollar, 7987).
   63   64   65   66   67   68   69   70   71   72   73