SIST-TP CEN/TR 15316-6-7:2018

Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 6-7: Explanation and justification of EN 15316-4-4, Module M8-3-4, M8-8-4, M8-11-4

This Technical Report (CEN/TR 15316-6-7) specifies details for EN 15316-4-4 and gives additional information for the application of EN 15316-4-4.

Heizungsanlagen und Wasserbasierte Kühlanlagen in Gebäuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 6-7: Begleitende TR zur EN 15316-4-4 (Wärmeerzeugungssysteme, gebäudeintegrierte KWK-Anlagen)

Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques et des rendements des systèmes - Partie 6-7 : Explication et justification de l'EN 15316-4-4, Module M8-3-4, M8-8-4, M8-11-4

Le présent Rapport technique se rapporte à la norme :
prEN 15316-4-4, Systèmes de chauffage et systèmes de refroidissement à eau dans les bâtiments — Méthode de calcul des besoins énergétiques et des rendements des systèmes — Partie 4-4 : systèmes de génération de chaleur, systèmes de cogénération intégrés au bâtiment.
Les systèmes de cogénération intégrés au bâtiment sont généralement connus sous le nom de micro ou petites cogénérations, ou encore de micro ou petites unités de production combinée de chaleur et d’électricité.
Il contient des informations pour aider à la compréhension, l’utilisation et l’adaptation nationale correctes de la norme EN 15316-4-4.
Le présent Rapport technique ne contient aucune disposition normative.

Energijske lastnosti stavb - Metoda za izračun energijskih zahtev in učinkovitosti sistema - 6-7. del: Razlaga in utemeljitev EN 15316-4-4 - Moduli M8-3-4, M8-8-4 in M8-11-4

To tehnično poročilo (CEN/TR 15316-6-7) določa podrobnosti za standard EN 15316-4-4 in podaja dodatne informacije za uporabo standarda EN 15316-4-4.

General Information

• Status: Published
• Public Enquiry End Date: 09-Jan-2017
• Publication Date: 18-Apr-2018
• ICS: 91.140.10 - Central heating systems
• Technical Committee: OGS - Heating for buildings
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Apr-2018
• Due Date: 10-Jun-2018
• Completion Date: 19-Apr-2018
• 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: CEN/TR 15316-6-7:2017 - Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 6-7: Explanation and justification of EN 15316-4-4, Module M8-3-4, M8-8-4, M8-11-4

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CEN/TR 15316-6-7:2018
01-maj-2018
(QHUJLMVNHODVWQRVWLVWDYE0HWRGD]DL]UDþXQHQHUJLMVNLK]DKWHYLQXþLQNRYLWRVWL
VLVWHPDGHO5D]ODJDLQXWHPHOMLWHY(10RGXOL00LQ
0
Energy performance of buildings - Method for calculation of system energy requirements
and system efficiencies - Part 6-7: Explanation and justification of EN 15316-4-4, Module
M8-3-4, M8-8-4, M8-11-4
Heizungsanlagen und Wasserbasierte Kühlanlagen in Gebäuden - Verfahren zur
Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 6-7:
Begleitende TR zur EN 15316-4-4 (Wärmeerzeugungssysteme, gebäudeintegrierte KWK
-Anlagen)
Performance énergétique des bâtiments - Méthode de calcul des besoins énergétiques
et des rendements des systèmes - Partie 6-7 : Explication et justification de l'EN 15316-4
-4, Module M8-3-4, M8-8-4, M8-11-4
Ta slovenski standard je istoveten z: CEN/TR 15316-6-7:2017
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
SIST-TP CEN/TR 15316-6-7:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 15316-6-7:2018

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SIST-TP CEN/TR 15316-6-7:2018


CEN/TR 15316-6-7
TECHNICAL REPORT

RAPPORT TECHNIQUE

April 2017
TECHNISCHER BERICHT
ICS 27.160; 91.120.10; 91.140.10
English Version

Energy performance of buildings - Method for calculation
of system energy requirements and system efficiencies -
Part 6-7: Explanation and justification of EN 15316-4-4,
Module M8-3-4, M8-8-4, M8-11-4
Performance énergétique des bâtiments - Méthode de Heizungsanlagen und Wasserbasierte Kühlanlagen in
calcul des besoins énergétiques et des rendements des Gebäuden - Verfahren zur Berechnung der
systèmes - Partie 6-7 : Explication et justification de Energieanforderungen und Nutzungsgrade der
l'EN 15316-4-4, Module M8-3-4, M8-8-4, M8-11-4 Anlagen - Teil 6-7: Begleitende TR zur EN 15316-4-4
(Wärmeerzeugungssysteme, gebäudeintegrierte KWK-
Anlagen)


This Technical Report was approved by CEN on 27 February 2017. It has been drawn up by the Technical Committee CEN/TC
228.

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 15316-6-7:2017 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST-TP CEN/TR 15316-6-7:2018
CEN/TR 15316-6-7:2017 (E)
Contents Page

European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and subscripts . 5
4.1 Symbols . 5
4.2 Subscripts . 5
5 Information on the methods . 6
5.1 General . 6
5.2 System boundaries . 6
6 Method description - Method 1 . 10
6.1 Rationale . 10
6.2 Time steps . 10
6.3 Assumptions . 11
6.4 Data input . 11
6.5 Link with EcoDesign . 12
7 Worked out examples . 12
Annex A (informative) Calculation flowhart . 13
Annex B (informative) Calculation examples. 15
Annex C (informative) Data Catalogue example . 18
Bibliography . 20


2

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SIST-TP CEN/TR 15316-6-7:2018
CEN/TR 15316-6-7:2017 (E)
European foreword
This document (CEN/TR 15316-6-7:2017) has been prepared by Technical Committee CEN/TC 228
“Project committee on energy performance in buildings”, the secretariat of which is held by DIN.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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.
3

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SIST-TP CEN/TR 15316-6-7:2018
CEN/TR 15316-6-7:2017 (E)
Introduction
In order to facilitate the necessary overall consistency and coherence, in terminology, approach,
input/output relations and formats, for the whole set of EPB-standards, the following documents and
tools are available:
a) a document with basic principles to be followed in drafting EPB-standards: CEN/TS 16628:2014,
Energy Performance of Buildings - Basic Principles for the set of EPB standards [1];
b) a document with detailed technical rules to be followed in drafting EPB-standards:
CEN/TS 16629:2014, Energy Performance of Buildings - Detailed Technical Rules for the set of
EPB-standards [2];
c) the detailed technical rules are the basis for the following tools:
1) a common template for each EPB-standard, including specific drafting instructions for the
relevant clauses;
2) a common template for each technical report that accompanies an EPB standard or a cluster of
EPB standards, including specific drafting instructions for the relevant clauses;
3) a common template for the spreadsheet that accompanies each EPB standard, to demonstrate
the correctness of the EPB calculation procedures.
Each EPB-standards follows the basic principles and the detailed technical rules and relates to the
overarching EPB-standard, EN ISO 52000-1:2017.
One of the main purposes of the revision of the EPB-standards is to enable that laws and regulations
directly refer to the EPB-standards and make compliance with them compulsory. This requires that the
set of EPB-standards consists of a systematic, clear, comprehensive and unambiguous set of energy
performance procedures. The number of options provided is kept as low as possible, taking into
account national and regional differences in climate, culture and building tradition, policy and legal
frameworks (subsidiarity principle). For each option, an informative default option is provided
(Annex B).
Rationale behind the EPB technical reports
There is a risk that the purpose and limitations of the EPB standards will be misunderstood, unless the
background and context to their contents – and the thinking behind them – is explained in some detail
to readers of the standards. Consequently, various types of informative contents are recorded and made
available for users to properly understand, apply and nationally or regionally implement the EPB
standards.
If this explanation would have been attempted in the standards themselves, the result is likely to be
confusing and cumbersome, especially if the standards are implemented or referenced in national or
regional building codes.
Therefore each EPB standard is accompanied by an informative technical report, like this one, where all
informative content is collected, to ensure a clear separation between normative and informative
contents (see CEN/TS 16629 [2]):
- to avoid flooding and confusing the actual normative part with informative content,
- to reduce the page count of the actual standard, and
- to facilitate understanding of the set of EPB standards.
This was also one of the main recommendations from the European CENSE project [5] that laid the
foundation for the preparation of the set of EPB standards.
4

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SIST-TP CEN/TR 15316-6-7:2018
CEN/TR 15316-6-7:2017 (E)
1 Scope
This Technical Report refers to EN 15316-4-4:2017, Heating systems and water based cooling systems in
buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-4: Heat
generation systems, building-integrated cogeneration systems.
Building-integrated cogeneration systems are commonly known as micro or small scale cogeneration,
or micro or small scale CHP.
It contains information to support the correct understanding, use and national adaptation of
EN 15316-4-4:2017.
This Technical Report does not contain any normative provision.
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.
EN 15316-4-4:2017, Heating systems and water based cooling systems in buildings - Method for
calculation of system energy requirements and system efficiencies - Part 4-4: Heat generation systems,
building-integrated cogeneration systems
EN 50465, Gas appliances - Fuel cell gas heating appliances - Fuel cell gas heating appliance of nominal
heat input inferior or equal to 70 kW
EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987)
EN ISO 52000-1:2017, Energy performance of buildings - Overarching EPB assessment - Part 1: General
framework and procedures (ISO 52000-1:2017)
ISO 3046-1, Reciprocating internal combustion engines — Performance — Part 1: Declarations of power,
fuel and lubricating oil consumptions, and test methods — Additional requirements for engines for general
use
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 7345:1995,
EN ISO 52000-1:2017, EN 15316-4-4:2017 apply.
4 Symbols and subscripts
4.1 Symbols
For the purposes of this document, the symbols given in EN ISO 52000-1:2017 and in
EN 15316-4-4:2017 apply.
4.2 Subscripts
For the purposes of this document, subscripts given in EN ISO 52000-1:2017 and in EN 15316-4-4:2017
apply.
5

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SIST-TP CEN/TR 15316-6-7:2018
CEN/TR 15316-6-7:2017 (E)
5 Information on the methods
5.1 General
This standard defines a method for the performance assessment of building-integrated cogeneration
units by the calculation of the electricity production, auxiliary power and recoverable losses. Such units
are commonly known as micro or small scale cogeneration, or micro or small scale CHP.
The principle of the assessment of the cogenerator performance is to associate for each heat output
(load from 0 %–100 % including the supplementary heat generator if relevant):
- the electricity output;
- the auxiliary power;
- the heat losses.
The calculation is based on the performance characteristics of the units, defined in product standards,
and on operation conditions such the needed heat output.
The product data based on testing according to EN 50465 and ISO 3046-1 are used for that calculation.
EN 50465 provides data:
- at 0 % load (standby);
- at CHP 100 % and Sup 0 % (primary heat and power generator only);
- at CHP 100 % and Sup 100 % (primary heat and power generator, and supplementary heat
generator).
Between these points, linear interpolation is proposed in order to estimate electricity output, auxiliary
power, heat losses for each point between 0 % and 100 % loads.
Operating parameters, as the temperature, are influencing the performance of a cogenerator. But as
these parameters are not tested according to EN 50465, nor ISO 3046-1, they cannot be taken into
account in the performance assessment.
5.2 System boundaries
The cogeneration unit may be of any type, possibly including a supplementary burner and thermal
storage, provided it has been tested as a whole to provide the energy performance information needed.
The figures below illustrate typical setups.
6

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SIST-TP CEN/TR 15316-6-7:2018
CEN/TR 15316-6-7:2017 (E)

Key
1 central Heating Water
2 auxiliary Electricity
3 air
4 gas
5 domestic cold water
6 combustion products
7 central Heating Water
8 electricity
9 domestic hot water
10 condensate
11 primary Heat and Power Generator
12 fuel pro
...

SLOVENSKI STANDARD
kSIST-TP FprCEN/TR 15316-6-7:2016
01-december-2016
[Not translated]
Energy performance of buildings - Method for calculation of system energy requirements
and system efficiencies - Part 6-7: Explanation and justification of EN 15316-4-4, Module
M8-3-4, M8-8-4, M8-11-4
Heizungsanlagen und Wasserbasierte Kühlanlagen in Gebäuden - Verfahren zur
Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 6-7:
Begleitende TR zur EN 15316-4-4 (Wärmeerzeugungssysteme, gebäudeintegrierte KWK
-Anlagen)
Ta slovenski standard je istoveten z: FprCEN/TR 15316-6-7
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
kSIST-TP FprCEN/TR 15316-6-7:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST-TP FprCEN/TR 15316-6-7:2016

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kSIST-TP FprCEN/TR 15316-6-7:2016


FINAL DRAFT
TECHNICAL REPORT
FprCEN/TR 15316-6-7
RAPPORT TECHNIQUE

TECHNISCHER BERICHT

November 2016
ICS 27.160; 91.120.10; 91.140.10
English Version

Energy performance of buildings - Method for calculation
of system energy requirements and system efficiencies -
Part 6-7: Explanation and justification of EN 15316-4-4,
Module M8-3-4, M8-8-4, M8-11-4
 Heizungsanlagen und Wasserbasierte Kühlanlagen in
Gebäuden - Verfahren zur Berechnung der
Energieanforderungen und Nutzungsgrade der
Anlagen - Teil 6-7: Begleitende TR zur EN 15316-4-4
(Wärmeerzeugungssysteme, gebäudeintegrierte KWK-
Anlagen)


This draft Technical Report is submitted to CEN members for Vote. It has been drawn up by the Technical Committee CEN/TC
228.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a Technical Report. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a Technical Report.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TR 15316-6-7:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)
Contents Page

European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and subscripts . 6
4.1 Symbols . 6
4.2 Subscripts . 6
5 Information on the methods . 7
5.1 General . 7
5.2 System boundaries . 7
6 Method description . 11
6.1 Method 1 . 11
6.1.1 Rationale . 11
6.1.2 Time steps . 11
6.1.3 Assumptions . 12
6.1.4 Data input . 12
6.1.5 Link with EcoDesign . 13
7 Worked out examples . 13
Annex A (informative) Calculation flowhart . 14
Annex B (informative) Calculation examples. 16
Annex C (informative) Data Catalogue example . 19
Bibliography . 21


2

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kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)
European foreword
This document (FprCEN/TR 15316-6-7:2016) has been prepared by Technical Committee CEN/TC 228
“Project committee on energy performance in buildings”, the secretariat of which is held by DIN.
This document is currently submitted to the Vote.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
3

---------------------- Page: 5 ----------------------
kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)
Introduction
In order to facilitate the necessary overall consistency and coherence, in terminology, approach,
input/output relations and formats, for the whole set of EPB-standards, the following documents and
tools are available:
a) a document with basic principles to be followed in drafting EPB-standards:
CEN/TS 16628:2014, Energy Performance of Buildings - Basic Principles for the set of EPB
standards [1];
b) a document with detailed technical rules to be followed in drafting EPB-standards;
CEN/TS 16629:2014, Energy Performance of Buildings - Detailed Technical Rules for the set of
EPB-standards [2];
c) the detailed technical rules are the basis for the following tools:
1) a common template for each EPB-standard, including specific drafting instructions for the
relevant clauses;
2) a common template for each technical report that accompanies an EPB standard or a cluster of
EPB standards, including specific drafting instructions for the relevant clauses;
3) a common template for the spreadsheet that accompanies each EPB standard, to demonstrate
the correctness of the EPB calculation procedures.
Each EPB-standards follows the basic principles and the detailed technical rules and relates to the
overarching EPB-standard, prEN ISO 52000-1:2015.
One of the main purposes of the revision of the EPB-standards is to enable that laws and regulations
directly refer to the EPB-standards and make compliance with them compulsory. This requires that the
set of EPB-standards consists of a systematic, clear, comprehensive and unambiguous set of energy
performance procedures. The number of options provided is kept as low as possible, taking into
account national and regional differences in climate, culture and building tradition, policy and legal
frameworks (subsidiarity principle). For each option, an informative default option is provided
(Annex B).
Rationale behind the EPB technical reports
There is a risk that the purpose and limitations of the EPB standards will be misunderstood, unless the
background and context to their contents – and the thinking behind them – is explained in some detail
to readers of the standards. Consequently, various types of informative contents are recorded and made
available for users to properly understand, apply and nationally or regionally implement the EPB
standards.
If this explanation would have been attempted in the standards themselves, the result is likely to be
confusing and cumbersome, especially if the standards are implemented or referenced in national or
regional building codes.
Therefore each EPB standard is accompanied by an informative technical report, like this one, where all
informative content is collected, to ensure a clear separation between normative and informative
contents (see CEN/TS 16629 [2]):
- to avoid flooding and confusing the actual normative part with informative content,
- to reduce the page count of the actual standard, and
4

---------------------- Page: 6 ----------------------
kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)
- to facilitate understanding of the set of EPB standards.
This was also one of the main recommendations from the European CENSE project [5] that laid the
foundation for the preparation of the set of EPB standards.
5

---------------------- Page: 7 ----------------------
kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)
1 Scope
This Technical Report refers to prEN 15316-4-4:2014, Heating systems and water based cooling systems
in buildings - Method for calculation of system energy requirements and system efficiencies - Part 4-4: Heat
generation systems, building-integrated cogeneration systems.
Building-integrated cogeneration systems are commonly known as micro or small scale cogeneration,
or micro or small scale CHP.
It contains information to support the correct understanding, use and national adaptation of
prEN 15316-4-4:2014.
This Technical Report does not contain any normative provision.
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 15316-4-4:2014, Heating systems and water based cooling systems in buildings - Method for
calculation of system energy requirements and system efficiencies - Part 4-4: Heat generation systems,
building-integrated cogeneration systems
EN 50465, Gas appliances - Fuel cell gas heating appliances - Fuel cell gas heating appliance of nominal
heat input inferior or equal to 70 kW
EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987)
prEN ISO 52000-1:2015, Energy performance of buildings - Overarching EPB assessment - Part 1: General
framework and procedures (ISO/DIS 52000-1:2015)
ISO 3046-1, Reciprocating internal combustion engines — Performance — Part 1: Declarations of power,
fuel and lubricating oil consumptions, and test methods — Additional requirements for engines for general
use
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 7345:1995,
prEN ISO 52000-1:2015, prEN 15316-4-4:2014 apply.
4 Symbols and subscripts
4.1 Symbols
For the purposes of this document, the symbols given in prEN ISO 52000-1:2015 and in
prEN 15316-4-4:2014 apply.
4.2 Subscripts
For the purposes of this document, subscripts given in prEN ISO 52000-1:2015 and in
prEN 15316-4-4:2014 apply.
6

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kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)
5 Information on the methods
5.1 General
This standard defines a method for the performance assessment of building-integrated cogeneration
units by the calculation of the electricity production, auxiliary power and recoverable losses. Such units
are commonly known as micro or small scale cogeneration, or micro or small scale CHP.
The principle of the assessment of the cogenerator performance is to associate for each heat output
(load from 0 %–100 % including the supplementary heat generator if relevant):
- the electricity output;
- the auxiliary power;
- the heat losses.
The calculation is based on the performance characteristics of the units, defined in product standards,
and on operation conditions such the needed heat output.
The product data based on testing according to EN 50465 and ISO 3046-1 are used for that calculation.
EN 50465 provides data:
- at 0 % load (standby);
- at CHP 100 % and Sup 0 % (primary heat and power generator only);
- at CHP 100 % and Sup 100 % (primary heat and power generator, and supplementary heat
generator).
Between these points, linear interpolation is proposed in order to estimate electricity output, auxiliary
power, heat losses for each point between 0 % and 100 % loads.
Operating parameters, as the temperature, are influencing the performance of a cogenerator. But as
these parameters are not tested according to EN 50465, nor ISO 3046-1, they cannot be taken into
account in the performance assessment.
5.2 System boundaries
The cogeneration unit may be of any type, possibly including a supplementary burner and thermal
storage, provided it has been tested as a whole to provide the energy performance information needed.
The figures below illustrate typical setups.
7

---------------------- Page: 9 ----------------------
kSIST-TP FprCEN/TR 15316-6-7:2016
FprCEN/TR 15316-6-7:2016 (E)

Key
1 central Heating Water
2 auxiliary Electricity
3 air
4 gas
5 domestic cold water
6 combustion products
7 central Heating Water
8 electricity
9 domestic hot water
10 condensate
11 primary Heat and Power Generator
12 fuel
...