Air Filtration

General Description

Use this operation to simulate air filtration.

Unit Procedure Availability

      Air Filtration Procedure

Air Filtration: Modeling Calculations

This is a very simple operation model that can be used to represent filtration of gaseous streams. In bioprocessing, air filters are used in fermentor air inlet streams to remove dust and prevent contamination. They are also used in gas exhaust streams to prevent release of recombinant and pathogenic microorganisms into the environment.

Equipment Sizing

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.

Equipment Costing

Different functions are available for inlet and exhaust filters that estimate the equipment cost as a function of throughput.

Air Filtration: Interface

The interface of this operation has the following tabs:

      Oper. Cond’s, see Air Filtration: Oper. Conds 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