Introduction
In this step we will calculate the diviersified flow and the diversity factor.
The diversified diversity flow is the maximum sum of all domestic hot water flows within the building, taking into account that not all tapping points are used at the same time.
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The theoretical total domestic hot water flowis flow is the sum of all individual tap design hot water flows.
Calculation method & order of calculations
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The first thing a user must select is the “calculation method“ to calculate the diversity flow and diversity factor. This selection is important because it will influence the order in which we calculate both.
static
If static is selected, the user must enter the diversity flow directly. In that case we will “reverse engineer“ the diversity factor based on the standard as explained below.
diversity standard
If diversity standard is selected, the user must enter the diviersified flow directly. In that case we will “reverse engineer“ the diversity factor as explained below.
“Number of dwelling” based diversity standards
Some diversity standards are only dependent on the number of dwellings, like :
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For most standards based on number of dwellings, the diversity factor within one dwelling is 100%.
diversified diversity flow
“Flow based“ based diversity standards
Option 1 : the user defines the tapping points
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diversified diversity flow
If the tapping points are defined, we can calculte the theoretical total DHW flow as a sum of all individual tapping points. We then use the diversity formula to calculate the diversified diversity flow. An example can be found at Based on DIN 1988-300
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When calculating the diversity flow, we sum up the individual flows without recalculating them (as explained in Step 1 : recalculation of the tapflows). In other words : we calculate the diversity factor for a “standardised“ situation.
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diversity factor
Option 2 : the user enters the diversified flow directly
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