CEN/TR 16798-8:2017

SLOVENSKI STANDARD
01-julij-2018
(QHUJLMVNHODVWQRVWLVWDYE3UH]UDþHYDQMHVWDYEGHO5D]ODJDLQXWHPHOMLWHY(1
0HWRGH]DL]UDþXQLQGRORþDQMHNROLþLQH]UDNDYVWDYEDKYNOMXþQR]
LQILOWUDFLMR0RGXO0
Energy performance of buildings - Ventilation for buildings - Part 8: Interpretation of the
requirements in EN 16798-7 - Calculation methods for the determination of air flow rates
in buildings including infiltration - (Module M5-5)
Energieeffizienz von Gebäuden - Lüftung von Gebäuden - Teil 8: Interpretation der
Anforderungen der EN 16798-7 - Berechnungsmethoden zur Bestimmung der
Luftvolumenströme in Gebäuden einschließlich Infiltration (Modul M5-5)
Performance énergétique des bâtiments - Ventilation des bâtiments - Partie 8 :
Interprétation des exigences de l’EN 16798-7 - Méthodes de calcul pour la détermination
des débits d'air dans les bâtiments y compris les infiltrations (Module M5-5)
Ta slovenski standard je istoveten z: CEN/TR 16798-8:2017
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 16798-8
TECHNICAL REPORT
RAPPORT TECHNIQUE
June 2017
TECHNISCHER BERICHT
ICS 91.120.10; 91.140.30
English Version
Energy performance of buildings - Ventilation for buildings
- Part 8: Interpretation of the requirements in EN 16798-7
- Calculation methods for the determination of air flow
rates in buildings including infiltration - (Module M5-5)
Performance énergétique des bâtiments - Ventilation Energieeffizienz von Gebäuden - Lüftung von
des bâtiments - Partie 8 : Interprétation des exigences Gebäuden - Teil 8: Interpretation der Anforderungen
de l'EN 16798-7 - Méthodes de calcul pour la der EN 16798-7 - Berechnungsmethoden zur
détermination des débits d'air dans les bâtiments y Bestimmung der Luftvolumenströme in Gebäuden
compris les infiltrations (Module M5-5) einschließlich Infiltration (Modul M5-5)

This Technical Report was approved by CEN on 27 February 2017. It has been drawn up by the Technical Committee CEN/TC
156.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 16798-8:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 Symbols, subscripts and abbreviations. 9
4.1 Symbols . 9
4.2 Subscripts . 10
4.3 Abbreviations . 11
5 Brief description of the methods . 11
5.1 Output of the method . 11
5.1.1 General . 11
5.1.2 Energy use outputs . 11
5.1.3 Indoor air quality outputs . 11
5.1.4 Summer comfort using ventilative cooling . 11
5.2 General description of the methods . 12
5.2.1 Multiple ventilation zones . 12
5.2.2 Airflows within a ventilation zone . 12
5.2.3 Separation of the ventilation zones into elementary spaces. 12
5.3 Selection criteria between the methods . 13
6 Calculation method, method 1 — Determination of air flow rates based on detailed
building characteristics . 14
6.1 Output data . 14
6.2 Calculation intervals . 14
6.3 Input data . 14
6.4 Calculation procedure, method 1 . 14
6.4.1 Applicable time intervals and states of operation . 14
6.4.2 Operating conditions calculation . 15
6.4.3 Calculation of air flow rates. 17
7 Method 2 – Determination of air flow rates based on statistical approach . 21
8 Quality control . 21
9 Compliance check. 21
10 Worked out examples, method 1 — Example 1. 22
10.1 Description . 22
10.2 Calculation details . 22
10.3 Observations . 22
Annex A (informative) Input and method selection data sheet — Template . 23
A.1 General . 23
A.2 References . 23
A.3 Input data method 1 . 23
A.4 Input data method 2 . 23
Annex B (informative) Input and method selection data sheet — Default choices . 24
B.1 General . 24
B.2 References . 24
B.3 Input data method 1 . 24
B.4 Input data method 2 . 24
Annex C (informative) Extract and supply air volume flow rate from a ventilation zone
(q , q ) — Calculation flowchart . 25
V;ETA;dis V;SUP;dis
Annex D (informative) Calculation examples — Example 1 . 26
Bibliography . 41

European foreword
This document (CEN/TR 16798-8:2017) has been prepared by Technical Committee CEN/TC 156
“Ventilation for buildings”, the secretariat of which is held by BSI.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
This document has been produced to meet the requirements of Directive 2010/31/EU 19 May 2010 on
the energy performance of buildings (recast), referred to as “recast EPDB”.
For the convenience of Standards users CEN/TC 156, together with responsible Working Group
Convenors, have prepared a simple table below relating, where appropriate, the relationship between
the ‘EPBD’ and ‘recast EPBD’ standard numbers prepared by Technical Committee CEN/TC 156
“Ventilation for buildings”.
EPBD EN Recast EPBD EN
Title
Number Number
Energy performance of buildings – Ventilation for buildings –
Part 1: Indoor environmental input parameters for design
EN 15251 EN 16798-1 and assessment of energy performance of buildings
addressing indoor air quality, thermal environment, lighting
and acoustics (Module M1-6)
Energy performance of buildings – Ventilation for buildings –
Part 2: Interpretation of the requirements in EN 16798-1 –
Indoor environmental input parameters for design and
N/A CEN/TR 16798-2
assessment of energy performance of buildings addressing
indoor air quality, thermal environment, lighting and
acoustics (Module M1-6)
Energy performance of buildings – Ventilation for buildings –
Part 3: For non-residential buildings – Performance
EN 16798-3
requirements for ventilation and room-conditioning systems
EN 13779
(Modules M5-1, M5-4)
Energy performance of buildings – Ventilation for buildings –
Part 4: Interpretation of the requirements in EN 16798- 3 –
N/A CEN/TR 16798-4 For non-residential buildings – Performance requirements
for ventilation and room-conditioning systems (Modules M5-
1, M5-4)
Energy performance of buildings – Ventilation for buildings –
Part 5-1: Calculation methods for energy requirements of
ventilation and air conditioning systems (Modules M5-6, M5-
EN 15241 EN 16798-5-1
8, M6-5, M6-8, M7-5, M7-8) – Method 1: Distribution and
generation
Energy performance of buildings – Ventilation for buildings –
Part 5-2: Calculation methods for energy requirements of
ventilation systems (Modules M5-6.2, M5-8.2) – Method 2:
EN 15241 EN 16798-5-2
Distribution and generation
Energy performance of buildings – Ventilation for buildings –
Part 6: Interpretation of the requirements in EN 16798-5–1
N/A CEN/TR 16798-6 and EN 16798-5-2 – Calculation methods for energy
requirements of ventilation and air conditioning systems
(Modules M5-6, M5-8, M 6-5, M6-8 , M7-5, M7-8)
Energy performance of buildings – Ventilation for buildings –
Part 7: Calculation methods for the determination of air flow
EN 15242 EN 16798-7
rates in buildings including infiltration (Module M5-5)

Energy performance of buildings – Ventilation for buildings –
Part 8: Interpretation of the requirements in EN 16798-7 –
N/A CEN/TR 16798-8
Calculation methods for the determination of air flow rates in
buildings including infiltration – (Module M5-5)
Energy performance of buildings – Ventilation for buildings –
EN 15243 EN 16798-9 Part 9: Calculation methods for energy requirements of
cooling systems (Modules M4-1, M4-4, M4-9) – General
Energy performance of buildings – Ventilatio
...