They did not show how to monitor the stability of the batch operation
. Because of the intrinsically dynamic operations of batch processes, some stability problems still go undiagnosed for a prolong period of time.
where [T.sub.batch] is the batch time, [x.sub.0] is the initial value of the process states, V(x) is the Lyapunov function used in designing the controller under continuous operation and Equation (11) is the model describing the evolution of the state x under batch operation
Delivering optimum refrigerated airflow, the unit can run for periods of up to a month between defrosting and incorporates a number of features to enable continuous, semi continuous or batch operation
At our house, we have now gone to a batch operation
. We set mail to be shredded on the shredder and then about twice a week, one of us shreds the whole batch.
The current pasteurization technique is a batch operation
. It involves immersing the eggs in hot water and requires an hour to complete.
"There are downsides to a batch operation
, such as the need for a large sorting area with the requisite equipment and more labor in the order assembly process."
For metalcasting facilities, particularly lower-volume operations, it often is logical to have a buffer of inventory near shakeout, which is between a batch operation
(pouring) and individual piece operations (grinding).
The new release comes with options including Batch Operation
, which allows the remote user to perform all batch control and logging operations; User Screens, allowing remote creation, display, and modification of custom screens; and File Explorer, allowing remote viewing and manipulation of instrument files.
The one step that has remained a batch operation
is the initial dough mixing.
To achieve single-pass rather than batch operation
, Richmond said Dayton may adopt press-to-pocket or press-to-hopper product flow.
Where the utilization of a very costly piece of capital equipment is more valuable than the cost of carrying inventory, or when a process demands batch operation
, it may make more sense to divide the cell in two; one cell with those steps taking place before the operation and another with those steps taking place after the operation.
Uniform deposition of large areas of amorphous-silicon thin fi those used in flat-panel displays and photovoltaic (PV) panels, is difficult enough in a laboratory batch operation
. But the process and yield demands needed to scale up to production levels add yet another level of problems.