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Frequently Asked Questions

What does the EPBD stipulate for summer comfort and how does this affect energy use and building design?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 216 visits

Article 4 of the EPBD stipulates explicitly that attention should be paid to indoor climate conditions: “Member States shall take the necessary measures to ensure that minimum energy ...

ASIEPI | EPBD | Summer comfort

Which are the pro’s and con’s of passive cooling against mechanical air conditioning?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 161 visits
Mechanical ventilation and air conditioning control the indoor conditions with a specific high consistency range that is independent of external conditions, whereas passive systems cannot be ...
ASIEPI | mechanical cooling | passive cooling

What would an adaptive standard be like?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 144 visits

Based on the idea that the human body continually adapts to a variety of conditions, an adaptive standard, would not include fixed indoor parameters but, would aim to promote (easy) adaptation ...

adaptive standard | ASIEPI | Summer comfort

What is adaptive comfort?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 150 visits
Adaptive comfort builds on the principle that people experience differently and adapt, up to a certain extent, to a variety of indoor conditions, depending on their clothing, their activity and ...
adaptive comfort | ASIEPI | Summer comfort

Which are the international guidelines and standards for thermal comfort and what tendency do they impose on summer comfort?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 184 visits

The main international guidelines and standards on thermal comfort are:

·         International Standard ISO 7730. This standard is based on ...

ASIEPI | Standards | Summer comfort

Are there means of assessing the performance of alternative cooling techniques?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 150 visits

In line with the principle of equivalence, each Member State implements various EN standards into its regulations to assist in the evaluation of the performance of alternative cooling ...

alternative cooling techniques | ASIEPI | assessment

How is it possible to combine good indoor climate conditions during summer with a decrease in energy consumption?

Question by Marianna Papaglastra (NKUA)
Theme: General on energy efficiency in buildings
Country: European Countries
Language: English
Visits: 151 visits
As has already been done for centuries before us, good indoor climate conditions during summer can be achieved through efficient use of the physical and natural conditions and sources around the ...
ASIEPI | Indoor climate | Summer comfort

Are national annexes always required to apply EN ISO 13790?

Question by Dick van Dijk  (TNO Built Environment and Geosciences )
Theme: Calculation procedures
Language: English
Visits: 463 visits

Choices have to be made at the national level. In several countries this is or will be done, at least for the time being, in a practical way, by copying the relevant parts of EN ISO 13790 as ...

Calculation | CEN | CENSE | Energy assessment | Energy performance in buildings | EPBD | Standards

How can the CEN-standards make reference to the set of European standards to support the EPBD?

Theme: Calculation procedures
Language: English
Visits: 514 visits

If an ISO (International Organization for Standardization) standard is also an EN ISO standard, then it is a European standard just like any other EN (European) standard. As illustrated in ...

Calculation | CEN | CENSE | Energy assessment | Energy performance in buildings | EPBD | Standards

Can the calculation method for the overall transmission and ventilation heat loss coefficients be used for existing buildings?

Theme: Calculation procedures
Language: English
Visits: 416 visits

Yes, but some of the required input data may not be available at reasonable costs. For those cases default values may be provided at national level, e.g. as function of type and age of ...

Calculation | CEN | CENSE | Energy assessment | Energy performance in buildings | EPBD | Standards
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