planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package:phpp_-_validated_and_proven_in_practice
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planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package:phpp_-_validated_and_proven_in_practice [2020/08/03 16:57] – [Cooling Energy Algorithms] wfeist | planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package:phpp_-_validated_and_proven_in_practice [2023/06/14 16:33] (current) – jgrovesmith | ||
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|{{ :picopen: comp_PHPP_measurements.png }}| | |{{ :picopen: comp_PHPP_measurements.png }}| | ||
- | |//**Figure 1: \\ Comparison of measured consumption (statistical data) with the PHPP calculation.** \\ \\ It is only possible to compare average measured results from sufficiently large statistical samples | + | |//**Figure 1: \\ Comparison of measured consumption (statistical data) with the PHPP calculation.** \\ \\ It is only possible to compare average measured results from sufficiently large statistical samples because individual consumption values fluctuate too much on account of the different user behaviours. The average values match the PHPP results |
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It is surprising that the results of the average measured values agree so well with the PHPP calculation. This is probably coincidental, | It is surprising that the results of the average measured values agree so well with the PHPP calculation. This is probably coincidental, | ||
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+ | Mitchell and Natarajan investigated a large sample of built passive houses build in the UK [Mitchell 2020]. They also compared these monitoring results with PHPP calculation, | ||
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+ | We often get the question, why there is such a huge [[operation: | ||
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===== More accurate than conventional methods ===== | ===== More accurate than conventional methods ===== | ||
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+ | ===== PHPP for exisiting buildings ===== | ||
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+ | PHPP was originally developped and validated for the design of energy efficient buildings with low energy demand. The question arises whether the same method and tool is also applicable and reliable for less efficient buildings, or even existing buildings with very high energy demand. This question was adressed as part of the [[https:// | ||
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===== Cooling Energy Algorithms ===== | ===== Cooling Energy Algorithms ===== | ||
- | With the application of passive houses also in hot and huinid climates of planet Earth, algorithms for the claculation of the annual cooling energy and the cooling loads were required. This have also been validated against results of dynamic building simulations , documented in [[planning: | + | With the application of passive houses also in hot and huinid climates of planet Earth, algorithms for the claculation of the annual cooling energy and the cooling loads were required. This have also been validated against results of dynamic building simulations, |
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**[Feist 2001]** Stellungnahme zur Vornorm DIN-V-4108-6: | **[Feist 2001]** Stellungnahme zur Vornorm DIN-V-4108-6: | ||
Statement regarding the Prestandard DIN-V-4108-6: | Statement regarding the Prestandard DIN-V-4108-6: | ||
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+ | **[Mitchell 2020]** Mitchell, Rachel and Natarajan, Sukumar: UK Passivhaus and the energy performance gap; Energy and Buildings, Volume 224, 1 October 2020, 110240 \\ | ||
**[PHPP 2007]** Feist, W.; Pfluger, R.; Kaufmann, B.; Schnieders, J.; Kah, O.: Passivhaus Projektierungs Paket 2007, Passivhaus Institut Darmstadt, 2007 \\ | **[PHPP 2007]** Feist, W.; Pfluger, R.; Kaufmann, B.; Schnieders, J.; Kah, O.: Passivhaus Projektierungs Paket 2007, Passivhaus Institut Darmstadt, 2007 \\ |
planning/calculating_energy_efficiency/phpp_-_the_passive_house_planning_package/phpp_-_validated_and_proven_in_practice.1596466640.txt.gz · Last modified: 2020/08/03 16:57 by wfeist