This unit operation simulates the formation of a new discrete entity from the combination of two other discrete entities. For instance, it can be used to represent the addition of a pumping mechanism or a cap to a bottle. Any number of type A entities can be combined with any number of type B entities to form the new entity. The flowrate of either the top stream (type A entity) or the bottom stream (type B entity) is adjusted by the program to synchronize the flowrates of the two input streams. The synchronization is based on the number of each type of entity required per new entity.
If the equipment size option is in Design Mode and the operating throughput exceeds the maximum throughput, then, the program assumes multiple, identical units operating in parallel with an operating throughput of less than the maximum. If the equipment size option is in Rating Mode and the operating throughput exceeds the rated throughput of the step (which is equal to the rated throughput of each unit times the number of units), a warning message is displayed advising the user to increase the number of units or reduce the operating throughput.
To account for electricity consumption, the user can either specify the power demand (in kW) or the specific power requirement (in kW/parts-min). In the second case, the specific power requirement times the operating throughput yields the power consumption.
The interface of this operation has the following tabs:
● Oper. Cond’s, see Assembly: Oper. Conds Tab
● Utilities, see Discrete Throughput Operations: Utilities Tab
● Labor, etc, see Operations Dialog: Labor etc. Tab
● Description, see Operations Dialog: Description Tab
● Batch Sheet, see Operations Dialog: Batch Sheet Tab
● Scheduling, see Operations Dialog: Scheduling Tab