planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package:internal_heat_gains_in_relation_to_living_area
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planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package:internal_heat_gains_in_relation_to_living_area [2021/03/02 05:33] – naman.sukhija@passiv.de | planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package:internal_heat_gains_in_relation_to_living_area [2022/04/26 21:52] (current) – [5Auxiliary electricity] jschnieders | ||
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The average occupancy of a dwelling depends on the size of the dwelling. For Germany, data from [Zensus 2011] is available regarding this, from which the average value for the number of persons per dwelling unit (more exactly: the number of persons who inhabit this dwelling; temporary absence will be taken into account later on) can be calculated as a function of the dwelling size. An excellent fit of this data is achieved with a function of the form | The average occupancy of a dwelling depends on the size of the dwelling. For Germany, data from [Zensus 2011] is available regarding this, from which the average value for the number of persons per dwelling unit (more exactly: the number of persons who inhabit this dwelling; temporary absence will be taken into account later on) can be calculated as a function of the dwelling size. An excellent fit of this data is achieved with a function of the form | ||
- | \\ \\ | + | $$ |
- | \begin{eqnarray*} | + | n=1+a(1-e^{-b(A-c)^2})+d\cdot A |
- | & & | + | $$ |
- | \end{eqnarray*} | + | |
where\\ | where\\ | ||
**n**: number of persons per DU \\ | **n**: number of persons per DU \\ | ||
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Auxiliary electricity consumptions depend strongly on the systems used. For the standard case, underfloor heating (optimised for electrical supply with an efficient heat pump, may also allow simple daytime storage of renewable energy) in combination with an optimised hot water circulating system (hot water storage tank for reducing the load on the grid, 60 °C) is assumed. This results in the following sources of released heat from auxiliary electricity uses: | Auxiliary electricity consumptions depend strongly on the systems used. For the standard case, underfloor heating (optimised for electrical supply with an efficient heat pump, may also allow simple daytime storage of renewable energy) in combination with an optimised hot water circulating system (hot water storage tank for reducing the load on the grid, 60 °C) is assumed. This results in the following sources of released heat from auxiliary electricity uses: | ||
- | * Unordered List ItemHeating | + | * Heating |
* Hot water circulation 5 W per dwelling unit, operating time 24 h/d | * Hot water circulation 5 W per dwelling unit, operating time 24 h/d |
planning/calculating_energy_efficiency/phpp_-_the_passive_house_planning_package/internal_heat_gains_in_relation_to_living_area.1614659599.txt.gz · Last modified: 2021/03/02 05:33 by naman.sukhija@passiv.de