BS PD CEN TR 15316-6-10-2017 Energy performance of buildings Method for calculation of system energy requirements and system efficiencies Explanation and justification of EN 15316-.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Energy performance of buildings Method for calculation of system energy requirements and system efficienciesPart 6-10: Explanation and justification of EN 15316-5, Module M3-7, M8-7PD CEN/TR 15316-6-10:2017TECHNICAL REP

2、ORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 15316-6-10 April 2017 ICS 91.120.10; 91.140.10; 91.140.65 English Version Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 6-10: Explanation and justification of EN 15316-5, Module M

3、3-7, M8-7 Heizungsanlagen und Wasserbasierte Khlanlagen in Gebuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 6-10: Begleitende TR zur EN 15316-5 (Wrmeerzeugung fr die Raumheizung und Speichersysteme fr Trinkwarmwasser (keine Khlung) This Technical Repor

4、t 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, Gree

5、ce, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR

6、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 worldwide for CEN national Members. Ref. No. CEN/TR 15316-6-10:2017 ENational forewordThis British Standard is the UK implementation of CEN/TR 15316610:2

7、017.The UK participation in its preparation was entrusted to Technical Committee RHE/24, Central heating installations.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a cont

8、ract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 95253 1ICS 91.120.10; 91.140.65; 91.140.10Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was

9、published under the authority of the Standards Policy and Strategy Committee on 31 May 2017.Amendments/corrigenda issued since publicationDate Text affected PUBLISHED DOCUMENTPD CEN/TR 15316610:2017TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 15316-6-10 April 2017 ICS 91.120.10; 91.

10、140.10; 91.140.65 English Version Energy performance of buildings - Method for calculation of system energy requirements and system efficiencies - Part 6-10: Explanation and justification of EN 15316-5, Module M3-7, M8-7 Heizungsanlagen und Wasserbasierte Khlanlagen in Gebuden - Verfahren zur Berech

11、nung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 6-10: Begleitende TR zur EN 15316-5 (Wrmeerzeugung fr die Raumheizung und Speichersysteme fr Trinkwarmwasser (keine Khlung) This Technical Report was approved by CEN on 27 February 2017. It has been drawn up by the Technical Committe

12、e 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,

13、Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rig

14、hts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 15316-6-10:2017 EPD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Symbo

15、ls and abbreviations . 7 4.1 Symbols . 7 4.2 Subscripts . 7 5 Information on the method . 7 6 Method description (storage model: multi volume) 8 6.1 Rationale 8 6.2 Time steps 8 6.3 Assumptions 8 6.4 Number of volume to model the storage 8 6.5 Data input 8 6.5.1 Volume 8 6.5.2 Thermal losses . 8 6.5

16、.3 Power unit . 9 6.5.4 Auxiliary . 9 6.6 Calculation information 9 7 Worked out examples. . 9 7.1 Storage model with 4 volumes . 9 7.1.1 Description 9 7.1.2 Calculation details . 10 7.1.3 Remarks and comments 10 7.2 Storage model with single volume . 10 7.2.1 Description . 10 7.2.2 Calculation deta

17、ils . 10 7.2.3 Remarks and comments 10 8 Application range . 10 8.1 Energy performance 10 8.2 Energy certificate . 10 8.3 Inspection . 10 8.4 System complexity . 11 9 Regulation use . 11 10 Information on the accompanying spreadsheet . 11 11 Results of the validation tests 11 12 Quality issues . 11

18、Annex A (informative) CALCULATION FLOWCHART 12 Annex B (informative) Calculation example: storage for domestic hot water modelled with 4 volumes 14 PD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 3 Annex C (informative) Example 2: Storage for heating and domestic hot water with internal back up he

19、ater modelled with 1 volume 22 Annex D (informative) Calculation method of weighting factor f_sto_bac_acc 29 D.1 Principle . 29 D.2 Illustration with domestic electric storage water heater (ESWH) 29 D.3 Estimation or f_sto_bac_acc with the accompanying spreadsheet 31 Annex E (informative) Monthly Ca

20、lculation . 32 Bibliography . 33 PD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 4 European foreword This document (CEN/TR 15316-6-10:2017) has been prepared by Technical Committee CEN/TC 228 “Heating systems and water based cooling systems in buildings”, the secretariat of which is held by DIN. A

21、ttention 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

22、 and the European Free Trade Association. PD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 5 Introduction The set of EPB standards, technical reports and supporting tools In order to facilitate the necessary overall consistency and coherence, in terminology, approach, input/output relations and for

23、mats, 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 t

24、echnical 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

25、 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 standa

26、rd, 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. One of the main purposes of the revision of the EPB-standards is to enable that laws and

27、 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, takin

28、g 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 lim

29、itations 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 und

30、erstand, 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. T

31、herefore 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 inform

32、ative content, to reduce the page count of the actual standard, and to facilitate understanding of the set of EPB standards. PD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 6 This was also one of the main recommendations from the European CENSE project 5 that laid the foundation for the preparatio

33、n of the set of EPB standards. PD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 7 1 Scope This Technical Report refers to EN 15316-5, covering module M3-7 and M8-7 It contains information to support the correct understanding, use and national adaptation of EN 15316-5. 2 Normative references The fol

34、lowing 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 15316-5:201

35、7, Energy performance of buildings Method for calculation of system energy requirements and system efficiencies Part 5: Space heating and DHW storage systems (not cooling), M3-7, M8-7 EN ISO 7345:1995, Thermal insulation Physical quantities and definitions (ISO 7345:1987) EN ISO 52000-1:2017, Energy

36、 performance of buildings Overarching EPB assessment Part 1: General framework and procedures (ISO 52000-1:2017) 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 and EN 15316-5:2017 apply. 4 Symbols and abbreviations

37、4.1 Symbols For the purposes of this document, the symbols given in EN ISO 52000-1:2017 and in EN 15316-5:2017 apply. 4.2 Subscripts For the purposes of this document, the subscripts given in EN ISO 52000-1:2017, in EN 15316-5:2017 (the accompanied EPB standard) apply. 5 Information on the method Th

38、e method calculates the thermal balance of the storage unit. This storage unit in divided, for the calculation purpose, in fixed volumes that are in stable conditions (temperature) for any time step considered. This method covers the thermal calculation of the storage unit where the temperature is s

39、tratified, due to delay between the energy demand and the re-heat by the generation unit. The generation unit can be located outside of the storage unit (combustion boilers, heat pump) or inside for specific cases (electric resistance for the main or for the back-up). The temperature of any volume i

40、s the result of the energy balance for the volume considered (energy input, mass transfer, thermal losses though the envelope). In case of multi storage unit the control system defines the priority between the storage unit (parallel mounting) or the order (serial mounting). PD CEN/TR 15316610:2017CE

41、N/TR 15316-6-10:2017 (E) 8 NOTE The thermal conduction between the different calculation volumes is neglected in the calculation. 6 Method description (storage model: multi volume) 6.1 Rationale The input data are the volume of the storage unit, standby losses at reference values (ambient temperatur

42、e, set temperature) of the storage unit and information related to the type of system used to heat the storage unit (power, type direct; heat exchanger, location or altitude). The information related to the scenario of use at the output is based on. A flowchart is given in Annex A. 6.2 Time steps Ti

43、me step is typically hourly. However, the time step could be adapted and aligned with the scenario of energy end use (tapping pattern for domestic hot water use). 6.3 Assumptions It is assumed that the power of losses vary linearly with the difference between ambient temperature and temperature of t

44、he storage unit. Energy is withdrawn at the beginning of the step time. The thermal losses are considered as proportion of each of the volume used to model the storage unit. This covers cylindrical (horizontal and vertical) storage. NOTE The value could be changed as a proportion of the external sur

45、face considered for each volume if necessary. Dynamic effects are neglected because the temperature of the storage unit is considered as homogenous during each time step. 6.4 Number of volume to model the storage Ideal situation is when the number of volumes used to model the storage unit is equal t

46、o the number of time step for a given period when the storage is supposed to recover its full capacity (typically 24 h period, so 24 volumes). If the heating element (heat exchanger, electric resistance) corresponds to the position of more than 1 volume, the heating power for each of the modelled vo

47、lume is made as a proportion of the sum of the volumes concerned with the location of the heating element. The number of volume could be reduced to 1 when the temperature of the whole volume is homogenous during each step time (no stratification). 6.5 Data input 6.5.1 Volume The volume is the declar

48、ed value by the manufacturer (unit: l litre). 6.5.2 Thermal losses When known, the thermal losses are those provided by the manufacturer. The thermal losses (usually expressed in kWh/24h) are transformed into thermal power losses (unit: W/K). PD CEN/TR 15316610:2017CEN/TR 15316-6-10:2017 (E) 9 Defau

49、lt values for coefficients C1, C2 C5 are based on data from the different products standards representing typical values for storage unit in Europe (Table 1). fsto;dis;lsis a multiplying factor of the thermal losses and depends on the number of pipes connection, the type of mounting of the pipe connection including or not heat traps or other features to limit heat exchange, and type of thermal insulation of piping and valves. The range of this factor vary for 1 to 5 fsto;dis;ls= 1:no thermal bridges and no