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Hysopt incorporates lots of diversity standards for DHW and CH which can be selected from the model settings.
On request we are happy to add new or additional diversity calculation methods in the Hysopt software.

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• Based on the CIBSE CP1 2020 / Varme Stabi 7th edition

• Based on a logaritmic function

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Overview

To explain diversity and aggregation, we use following example model of 2 HIU’s.

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First of all, we make a distinction between the calculations within one dwelling, and the calculations over multiple dwellings.

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Within a single dwelling

Step 1 : recalculation of the tapflows

Step 2 : calculation of the diversity factor and it's effect on the DHW flow and DHW power at DHW sidediversity flow

Step 3 : calculation of the DHW flow and DHW power at CH side, influenced by a regime changing component like a heat exchanger, HIU, storage tank, ...

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Over multiple dwellings

Step 5a 5 : propagate the DHW flow/powerStep 5b : propagate the CH flow/power power, flows and temperature regimes over multiple dwellings and branches

Step 6 : aggregation of the DHW flow/power with the CH flow/power