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  • P3 = P1 + P2 (first law of thermodynamics)

  • f3 is recalculated based on the applicable diversity standard, applied on the TOTAL amount of tapflow or TOTAL amount of dwellings on the secondary side.

  • The diversified power is equal to f3 * P3

  • the supply temperature t3supply is defined by the user

  • the return temperature t3return is calculated as the mixed return temperature of flow 1 and flow 2 (v3 * t3return = v1 * t1return + v2 * t2return). This means that the return temperature is not a direct result of the diversity, but a result of the components (like heat exchangers) and the mixing rules

  • the diviersity volume flow v3 is calculated using the formula

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    in which P is the diversity power f3 * P3, m is the diversity massflow (which can be converted to the diversity volumeflow), T1 is the return temperature t3return, T2 is the supply temperature t3supply

Note

Allthough P1 + P2 = P3 it is important to mention that :

  • f3 ≠ f1 + f2

  • v3 ≠ v1 + v2

This is a typical effect of the diversity, and sometimes experienced as contra intuitive