EN 16798-7-2017 pdf download

08-12-2021 comment

EN 16798-7-2017 pdf download.Energy performance of buildings – Ventilation for buildings- Part 7: Calculation methods for the determination of air flow rates in buildings including infiltration (Modules M5-5).
This EN 16798-7 describes the methods to calculate the ventilation air flow rates for buildings to be used for energy calculations evaluation, heating and cooling loads.
This European Standard applies to buildings with one or more of the following characteristics:
— mechanical ventilation systems (mechanical exhaust, mechanical supply or balanced system);
— passive duct ventilation systems for residential and low-rise non-residential buildings;
— combustion appliances;
— window openings (manual or automatic operation); and
— kitchens where cooking is for immediate use (including restaurants).
This European Standard is applicable to hybrid systems combining mechanical and passive duct ventilation systems in residential and low-rise non-residential buildings.
This European Standard applies to buildings with a building height of less than 100 m and rooms where vertical air temperature difference is smaller than 15 K.
The results provided by the standard are:
— the air flow rates entering or leaving a ventilation zone; and
— the air flow rates required to be distributed by the mechanical ventilation system, if present.
This European Standard is not applicable to:
— buildings with kitchens where cooking is not for immediate use; and
— buildings with industry process ventilation.
The definition of ventilation and airtightness requirements (as indoor air quality, heating and cooling, safety, fire protection, etc.) is not covered by this document. The definition of window opening scenarios is not covered by this document.
Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in prENlSO 52000-1.
NOTE I In prENISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation.
NOTE 2 The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPH standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
prEN Iso 52000-1:2015, Energy performance of buildings — Overarching EPB assessment – Part 1:
General framework and procedures1
NOTE I Default references to other EPB standards other than prEN ISO 52000-1:2015 are identified by the EPB module code number and given in Annex A (normative template) and Annex B (informative default choice).
NOTE 2 Example of EPB module code number: MS-S. or M5-S.1 (If module MS-S is subdivided), or MS—S/i (if reference to a specific clause of the standard covering M5—5).
NOTE 3 The same module code numbering will be used In other EPH standards. This will facilitate -in a individual country- the making of a consistent set of national annexes for each EPH standard and contribute to the overall consistency and transparency.
EN 12792:2003, Ventilation for buildings – Symbols, terminology and graphical symbols
EN 13141-1, Ventilation for buildings – Performance testing of components/products Iôr residential ventilation – Part 1: Externally and internally mounted air transfer devices
EN 13141-2, Ventilation for buildings – Performance testing of components/products for residential ventilation – Part 2: Exhaust and supply air terminal devices
EN 13 141-5, Ventilation for buildings – Performance testing of components/products for residential ventilation – Part 5: Cowls and roof outlet terminal devices
Iso 7345:1987, Thermal insulation — Physical quantities and definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7345:1987, prEN ISO 52000-1:20 15, EN 12792, and the following apply.
NOTE The terms and definitions of prEN ISO 52000-1:2015 that are indispensable for the understanding of the underlying standard are repeated here.
3.1
EPB standard
standard that complies with the requirements given in prEN ISO 52000-1:2015, CEN/TS 16628 and
CEN/TS 16629
Note ito entry: CEN/TS 16628 and CEN/TS 16629 contain specific rules to ensure overall consistency, unambiguity, transparency and flexibility, supported by common templates. prEN ISO 52000-1:2015, the overarching EPH standard, is indispensable for each F.P13 standard, because of the modular structure, common terms and definitions, symbols and subscripts and because it provides the general framework for the EPB assessment,
[SOURCE: prEN ISO 52000-1:2015]
3.2
ventilation zone
conditioned space which can be considered as air flow independent from other conditioned spaces (i.e. the air leakages between two adjacent zones are sufficiently low to be neglected, and there is no possibility of air transfer between two zones)
Note I to entry: A ventilation zone can be a set of rooms with enough air transfer between those rooms to consider they are all at the same pressure. It can also be a single room if there is no significant air transfer between this room and other ventilation zones
3.3
building height
height of the building from the entrance ground level to the rooftop level
3.4
building envelope airtightness
overall leakage air flow rate for a given test pressure difference across building
3.5
vent
any opening in the building intended for ventilation.EN 16798-7-2017 pdf download.

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