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planning:calculating_energy_efficiency:energy_balances_-_background

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planning:calculating_energy_efficiency:energy_balances_-_background [2018/06/22 12:46] – [What is the correct reference value?] cblagojevicplanning:calculating_energy_efficiency:energy_balances_-_background [2020/08/03 14:57] (current) – [Discussion about the purpose of heating] wfeist
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   - There are often critical remarks about the the calculation method too:\\ ** Can (stationary) U-values be used in calculations at all?  Isn't the heat storage more important than the thermal insulation, and isn't the whole U-value calculation method incorrect?**\\ No, the U-value calculation method is the correct approach as has been shown by many systematic analyses (see [[planning:thermal_protection:thermal_protection_works:Thermal protection vs. thermal storage]]). The comparison of the energy balance after the calculation and after the measurement additionally proves this.\\   - There are often critical remarks about the the calculation method too:\\ ** Can (stationary) U-values be used in calculations at all?  Isn't the heat storage more important than the thermal insulation, and isn't the whole U-value calculation method incorrect?**\\ No, the U-value calculation method is the correct approach as has been shown by many systematic analyses (see [[planning:thermal_protection:thermal_protection_works:Thermal protection vs. thermal storage]]). The comparison of the energy balance after the calculation and after the measurement additionally proves this.\\
 \\ \\
 +==== Can a similar approach also be used to calculate the cooling demand? ====
 +
 +Yes, it can. It is exactely the same balance - the utilisation factor will now be applied to potentially remaining heat losses. This is implemented as the active cooling sheet in PHPP.\\
 +
 +It is also possible, to give an assessment of the thermal comfort if no active cooling is available: The is based on the [[:a_simplified_method_for_determining_thermal_comfort_in_summer_for_buildings_without_active_cooling|passive cooling sheet]].
 +  
 +\\ \\
 ===== Reference area: Treated Floor Area ===== ===== Reference area: Treated Floor Area =====
  
planning/calculating_energy_efficiency/energy_balances_-_background.1529664383.txt.gz · Last modified: 2018/06/22 12:46 by cblagojevic