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CEN/TR 16798-16:2017

(Main)

Energy performance of buildings - Ventilation for buildings - Part 16: Interpretation of the requirements in EN 16798-15 - Calculation of cooling systems (Module M4-7) - Storage

Energy performance of buildings - Ventilation for buildings - Part 16: Interpretation of the requirements in EN 16798-15 - Calculation of cooling systems (Module M4-7) - Storage

This Technical Report refers to the standard EN 16798-15.
It contains information to support the correct understanding, use and national adaptation of this standard.

Energieeffizienz von Gebäuden - Lüftung von Gebäuden - Teil 16: Interpretation der Anforderungen der EN 16798-15 - Berechnung von Kühlsystemen (Modul M4-7) - Speicherung

Performance énergétique des bâtiments - Ventilation des bâtiments - Partie 16 : Explication des exigences de l'EN 16798‐15 - Calcul des systèmes de refroidissement (Module M4‐7) - Stockage

Energijske lastnosti stavb - Prezračevanje stavb - 16. del: Razlaga in utemeljitev EN 16798-15 - Izračun za hladilne sisteme - Modul M4-7 - Shranjevanje

To tehnično poročilo se nanaša na standard EN 16798-15.
Vsebuje informacije za pomoč pri pravilnem razumevanju, uporabi in nacionalni prilagoditvi tega standarda.

General Information

Status
Published
Publication Date
27-Jun-2017
ICS
91.120.10 - Thermal insulation of buildings
91.140.30 - Ventilation and air-conditioning systems
Technical Committee
CEN/TC 156 - Ventilation for buildings
Drafting Committee
CEN/TC 156/WG 21 - Revision of calculation standards EN15241, 15242 and 15243
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
28-Jun-2017
Due Date
15-Nov-2015
Completion Date
28-Jun-2017
Directive
2010/31/EU - Directive 2010/31/eu of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast)
Mandate
M/480 - Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and promoting the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the energy performance buildings (2010/31/EU)
Ref Project
SIST-TP CEN/TR 16798-16:2018 - Energy performance of buildings - Ventilation for buildings - Part 16: Interpretation of the requirements in EN 16798-15 - Calculation of cooling systems (Module M4-7) - Storage

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SLOVENSKI STANDARD
01-julij-2018
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Energy performance of buildings - Ventilation for buildings - Part 16: Interpretation of the
requirements in EN 16798-15 - Calculation of cooling systems (Module M4-7) - Storage
Energieeffizienz von Gebäuden - Lüftung von Gebäuden - Teil 16: Interpretation der
Anforderungen der EN 16798-15 - Berechnung von Kühlsystemen (Modul M4-7) -
Speicherung
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Ta slovenski standard je istoveten z: CEN/TR 16798-16:2017
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 16798-16
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 16: Interpretation of the requirements in EN 16798-
15 - Calculation of cooling systems (Module M4-7) -
Storage
Performance énergétique des bâtiments - Ventilation Energieeffizienz von Gebäuden - Lüftung von
des bâtiments - Partie 16 : Explication des exigences Gebäuden - Teil 16: Interpretation der Anforderungen
de l'EN 16798-15 - Calcul des systèmes de der EN 16798-15 - Berechnung von Kühlsystemen
refroidissement (Module M4-7) - Stockage (Modul M4-7) - Speicherung

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 16798-16:2017 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 and abbreviations . 9
4.1 Symbols . 9
4.2 Abbreviations . 9
5 Brief description of the method . 9
5.1 Output of the method . 9
5.2 General description of the method . 10
5.2.1 General . 10
5.2.2 Assumptions . 10
5.2.3 Number of volumes to model the storage . 11
5.2.4 Calculation information . 11
5.3 Flowchart of the calculation procedure . 11
5.4 Technologies covered by the standard . 11
5.5 Description of cooling systems. 11
6 Calculation method . 11
6.1 Output data . 11
6.2 Calculation time interval and calculation period . 11
6.3 Input data . 12
6.3.1 Source of data . 12
6.3.2 Product data . 12
6.3.3 System design data . 12
6.3.4 Operating conditions . 13
6.3.5 Constants and physical data . 13
6.3.6 Input data from Annex A (Annex B) . 13
6.4 Calculation procedure, hourly method . 13
7 Quality control . 13
8 Compliance check. 13
9 Worked out examples . 13
9.1 Storage model using water / ice . 13
9.1.1 Description . 13
9.1.2 Calculation details . 13
9.2 Storage with PCM materials . 13
9.2.1 Description . 13
9.2.2 Calculation details . 14
9.3 Remarks and comments . 14
Annex A (informative) Input and method selection data sheet — Template . 15
A.1 General . 15
A.2 References . 15
A.3 Hourly, monthly and annual method . 15
A.4 Additional information for monthly method . 15
Annex B (informative) Input and method selection data sheet — Default choices . 16
B.1 General . 16
B.2 References . 16
B.3 Hourly, bin, monthly and annual method . 16
B.4 Additional information for monthly and annual method . 16
Annex C (informative) Calculation flowchart . 17
Annex D (informative) Calculation example . 18
D.1 Spreadsheet . 18
D.2 Example 1: water/ice as storage material . 18
Bibliography . 27

European foreword
This document (CEN/TR 16798-16:2017) 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.
The necessary editorial revisions were made to comply with the requirements for each EPB Technical
Report.
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
requirements for ventilation and room-conditioning systems
EN 13779 EN 16798-3
(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
...

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EN 16798-5-2:2017(Main)
Energy performance of buildings - Ventilation for buildings - Part 5-2: Calculation methods for energy requirements of ventilation systems (Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) - Method 2: Distribution and generation
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This European Standard covers energy performance calculation of mechanical ventilation systems with integrated heating/cooling generation, including domestic hot water production, using a monthly or seasonal calculation interval or a bin method. It takes into account the generation (air handling unit) and distribution (duct system) parts. It does not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which is covered in the M5-5 standard. It does not include humidification and dehumidification. This method is focussed on small, packaged ventilation systems, typically used in residential buildings, although the application is not restricted on the basis of building or space use type.
A calculation method for mechanical ventilation and air conditioning systems, including humidification and dehumidification, using an hourly calculation interval or a bin method, is provided in a separate standard, EN 16798 5 1.
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 EN ISO 52000 1.
NOTE 1   In CEN ISO/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.
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This European Standard applies to the design, energy performance of buildings and implementation of ventilation, air conditioning and room conditioning systems for non-residential buildings subject to human occupancy, excluding applications like industrial processes. It focuses on the definitions of the various parameters that are relevant for such systems.
The guidance for design given in this European Standard and accompanying FprCEN/TR 16798-4 are mainly applicable to mechanical supply and/or exhaust ventilation systems. Natural ventilation systems or natural parts of hybrid ventilation systems are not covered by this European Standard. Reference is made to the Technical Report for informative guidance on the design of such systems.
Applications for residential ventilation are not dealt with in this European Standard. Performance of ventilation systems in residential buildings are dealt with in EN 15665 and CEN/TR 14788.
The classification uses different categories. For some values, examples are given and, for requirements, typical ranges with default values are presented. The default values given in this European Standard are not normative as such, and should be used where no other values are specified. Classification should always be appropriate to the type of building and its intended use, and the basis of the classification should be explained if the examples given in the European Standard are not to be used.
NOTE 1   Different standards may express the categories for the same parameters in a different way, and also the category symbols may be different.
Table 1 shows the relative position of this European Standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1 .
NOTE 2   In FprCEN ISO/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.
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This European Standard 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:
-   Mechanical ventilation systems (mechanical exhaust, mechanical supply or balanced system);
-   Passive duct ventilation systems for residential and low-rise non-residential buildings;
-   Combustion appliances;
-   Windows opening by manual operation;
-   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 smaller 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;
-   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
-   Buildings with automatic windows (or openings)
-   Buildings with industry process ventilation.
The definition of ventilation and airtightness requirements (as indoor air quality, heating and cooling, safety, fire protection…) is not covered by this standard.
The following information can be found in other standards and technical reports:
-   guidance to estimate pressure drops in ducts (CR 14378:2002)
Table 1 shows the relative position of this standard within the EN EPB package of standards.

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This European Standard specifies a calculation method for the energy performance of storage systems used for ventilation systems. It takes into account the energy performance of storage systems using water from phase change material (PCM) to store cooling energy. This standard presents a general method applicable to the different technologies of water-based storage systems or PCM related controls systems. It does not cover the cooling emission, distribution and generation that are covered by EN 15316 2, EN 15316 3 and EN 16798-13 respectively.
The standard covers typically hourly time steps but can be adapted to different time steps accordingly with the scenarios used for energy use and energy delivered or to bin method.
A simplified method is provided for monthly or annual time step.
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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 prEN ISO 52000 1:2015.
NOTE 1   In prCEN ISO/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 EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.
Table 1 - Position of this standard (in casu M4-7) within the EPB set of standards
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SIST EN 16798-9:2018

This European Standard covers the energy performance calculation of complete cooling systems. It gives a calculation method that defines how to collect the cooling energy requirements from the thermal zones and from the air handling units connected to a distribution system, and how to aggregate multiple distribution systems to an overall system energy requirement. It incorporates the calculation of the emission and distribution losses and auxiliary energy. The required cooling energy to be extracted by the cooling generation system is calculated, and the cooling energy storage is considered. It gives a method on how to dispatch the cooling energy provided by the cooling generation to different distribution systems, and possible priorities are considered.
This European Standard defines energy performance indicators for cooling systems.
Table 1 shows the relative position of this standard within the EPB package of standards in the context of the modular structure as set out in prEN ISO 52000-1.
NOTE 1   In prCEN ISO/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 EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

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