Pasteurizer: Equipment Tab

Variable Definitions, Ranges and Default Values

The following table illustrates the meaning of the variables appearing in this tab, as well as their default values and their generally acceptable range.

Variable	Default Value	Range

◙ Max Throughput The maximum volumetric throughput that a unit of this type is available for purchase in the market.	100,000.0 L/h	Positive
◙ Rated Throughput The rated volumetric throughput.	3600.0 L/h	Positive
◙ Holding Tube Diameter The pasteurizer’s holding tube diameter.	10.0 cm	Positive
◙ Holding Tube Length The pasteurizer’s holding tube length .	1.0 m	Positive
● Holding Tube Volume The pasteurizer’s holding tube volume.	7.85 m³	Positive
○ Is Regenerator Available? Regenerator availability option of the pasteurizer unit.	Yes	Yes/No
◙ Heater Heat Transfer Area The heat transfer area of the pasteurizer’s heater.	1.0 m²	Positive
◙ Cooler Heat Transfer Area The heat transfer area of the pasteurizer’s cooler.	1.0 m²	Positive
◙ Regenerator Heat Transfer Area The heat transfer area of the pasteurizer’s regenerator (if available).	1.0 m²	Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Sizing: Design Mode

In Design Mode, the user specifies the Maximum Throughput and the model calculates the Number of Units, the Diameter, Length and Volume of the Holding Tube as well as the Heat Transfer Areas of the heat exchnagers of the pasteurizer (i.e., the heater, cooler and regenerator, if available). See also Pasteurization: Modeling Calculations.

Sizing: Rating Mode

In Rating Mode, the user specifies the Number of Units, the Holding Tube Length and Diameter as well as the Heat Exchange Areas of the heater, cooler and regenerator (if available).

Costing

Equipment purchase cost is calculated as a combination of the Holding Tube’s volume and the total heat exchange area of the heat exchangers. It is supplied by the built-in model assuming as material of construction SS316.

For more information on this equipment, see Pasteurizer.

For information on the functionality of the options at the left side of the dialog, see Equipment Data Dialog: Equipment tab.