Reaction Indicator for Formulas

Use

If conversions take place at molecular level in a formula apart from the mixing, homogenizing, and aeration of the input substances, that is, if a reaction takes place, you can characterize the formula as a reaction. This has effects on whether certain fields are ready for input.

Example Example

When you dilute a sugar solution with water, the sugar remains, that is, no reaction takes place. On the other hand, if you convert the diluted sugar solution using yeast, a reaction takes place because the sugar is converted into alcohol by the yeast.

End of the example.

Prerequisites

In Customizing for Recipe Management , you have made the necessary settings in the following IMG activities:

Specify Explosion Scopes
Specify Parameters for Explosion Scope
Specify Formula View Parameters
Define and Assign Values to Environment Parameters

Features

Reaction Category

When you set a formula as a reaction, you can choose between the following reaction categories in the standard system:

Standard reaction
Formula-specific reaction

In Customizing for Recipe Management in the IMG activity Define and Assign Values to Environment Parameters , you use the FRML_REACTION_TYPE environment parameter to control which reaction category the system proposes when you set the Reaction indicator.

Furthermore, depending on the reaction category, you can specify in Customizing for Recipe Management whether formula views are ready for input (IMG activity Specify Formula View Parameters ) or whether they take their data from other views (IMG activity Specify Parameters for Explosion Scope ).

Reaction and Evaporation/Absorption

If you set the Reaction indicator for a formula, you cannot set the Evaporation/Absorption indicator for the formula at the same time.

The Reaction and Evaporation/Absorption indicators influence whether individual primary output fields are ready for input according to the table below:

Reaction	Evaporation/Absorption	Total Solids	% Total Solids (Spec.)	Quantity
x		Ready for input	Display	Ready for input
	x	Display	Ready for input	Ready for input
		Display	Display	Display

Note Note

If you have set one of these indicators and at the same time enter total solids and a quantity in the fields that are ready for input without confirming these entries, the system takes into account only the quantity, that is, the quantity entered has a higher priority than the total solids entered.

You can only enter the quantities of primary and secondary outputs in a unit of volume if a density is specified in the property tree of the corresponding specification. This is the specification of the respective output substance or, with streams, the specification of the formula.

End of the note.

Formula Explosion in Reactions

In formula explosion the system checks whether the Reaction indicator has been set for the explosion scope in the IMG activity Specify Explosion Scopes in Customizing for Recipe Management and whether the formula that was found is set as a reaction. If the formula is a reaction, the system does not explode the formula any further and transfers the substance or composition of the formula.

Consistency Check in Reactions

If the Reaction indicator has been set for a formula, the system does not perform a consistency check and does not set the Consistent indicator automatically. In this case, you must check the consistency manually and set the Consistent indicator manually.

Activities

To set a formula as a reaction, proceed as follows:

Load the formula that you want to set as a reaction.
Choose the Quantities formula view .
Choose with the quick info text Reaction Active/Inactive .
Specify whether the reaction is a standard reaction or a formula-specific reaction and confirm your choice.

The system sets the Reaction indicator in the Quantities formula view and above the formula views. In this way, you can see from every formula view whether a reaction takes place in the formula.

You can use the same procedure to deselect the Reaction indicator.