BS PD CEN TR 15316-6-7-2017 Energy performance of buildings Method for calculation of system energy requirements and system efficiencies Explanation and justification of E.pdf

1、BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 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 PD CEN/TR 15316-6-7

2、:2017National foreword This British Standard is the UK implementation of CEN/TR 15316-6-7:2017. 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

3、secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. ISBN 978 0 580 95137 4 ICS 91.140.10; 27.160; 91.120.10 Compliance with a British Standard cannot confer immunity from legal obligations. This Britis

4、h Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2017. Amendments/corrigenda issued since publicationDate Text affected PUBLISHED DOCUMENT PD CEN/TR 15316-6-7:2017TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 1531667 April 2017 ICS

5、 27.160; 91.120.10; 91.140.10 EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN CENELEC Management Centre: Avenue Marnix 17, B 1000 Brussels 2017 CEN Ref. No. CEN/TR 15316-6-7:2017: E All rights of exploitation in any form and by any means reser

6、ved worldwide for CEN national MembersEnergy 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 nergtique des btiments - Mthode de calcul des bes

7、oins nergtiques et des rendements des systmes - Partie 6-7 : Explication et justification de lEN 15316-4-4, Module M8-3-4, M8-8-4, M8-11-4 Heizungsanlagen und Wasserbasierte Khlanlagen in Gebuden - Verfahren zur Berechnung der Energieanforderungen und Nutzungsgrade der Anlagen - Teil 6-7: Begleitend

8、e TR zur EN 15316-4- 4 (Wrmeerzeugungssysteme, gebudeintegrierte 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

9、 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 King

10、dom. English Version CEN/TR 1531667:2017 (E) 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

11、 Method 1 . 9 6.1 Rationale. 9 6.2 Time steps 10 6.3 Assumptions .11 6.4 Data input .11 6.4.1 General.11 6.4.2 Default values 12 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) Dat

12、a Catalogue example 17 Bibliography .18 2 Contents Page PD CEN/TR 15316-6-7:2017CEN/TR 1531667:2017 (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

13、 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 respons

14、ible for identifying any or all such patent rights.3 PD CEN/TR 15316-6-7:2017CEN/TR 1531667:2017 (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 do

15、cuments 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: C

16、EN/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 com

17、mon 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

18、 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

19、 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

20、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,

21、 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 implemen

22、t 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 info

23、rmative 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 a

24、ctual 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 PD CEN/TR 15316-6-7:2017 CEN/TR 1531667:2017 (E) 1 Scope This Tec

25、hnical 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 syste

26、ms 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 followin

27、g 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,

28、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 applia

29、nce 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, Recipr

30、ocating 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, E

31、N 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:

32、2017 apply.5 PD CEN/TR 15316-6-7:2017 CEN/TR 1531667:2017 (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. Suc

33、h 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; - t

34、he 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

35、. 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 electr

36、icity 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 pe

37、rformance 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 PD CEN/TR 1

38、5316-6-7:2017 CEN/TR 1531667:2017 (E) Key 1central Heating Water 2auxiliary Electricity 3air 4gas 5domestic cold water 6combustion products 7central Heating Water 8electricity 9domestic hot water 10condensate 11primary Heat and Power Generator 12fuel processing system 13fuel Cell Module 14power cond

39、itioning and chp-control system 15supplementary Heat Generator 16thermal Management 17support Controls Figure 1 Typical set up for a fuel cell mCHP appliance7 PD CEN/TR 15316-6-7:2017 CEN/TR 1531667:2017 (E) Key 1central Heating Water 2auxiliary Electricity 3air 4gas 5domestic cold water 6combustion

40、 products 7central Heating Water 8electricity 9domestic hot water 10condensate 11primary Heat and Power Generator 12engine Burner 13stirling Engine Module 14power conditioning and chp-control system 15supplementary Heat Generator 16thermal Management 17support Controls Figure 2 Typical set up for a

41、Stirling engine mCHP appliance 8 PD CEN/TR 15316-6-7:2017 CEN/TR 1531667:2017 (E) Key 1central Heating Water 2auxiliary Electricity 3air 4gas 5domestic cold water 6combustion products 7central Heating Water 8electricity 9domestic hot water 10condensate 11primary Heat and Power Generator 12internal C

42、ombustion Engine 13power Generator 14power conditioning and chp-control system 15supplementary Heat Generator 16thermal Management 17support Controls Figure 3 Typical set up for an internal combustion engine mCHP appliance Electrical connection components are only taken into account if they are part

43、 of the unit and tested together with. 6 Method description Method 1 6.1 Rationale The input data are the tested efficiencies at full and partial loads: Primary Heat and Power Generator operating alone, and overall package (PHPG + Supplementary Generator), as well as standby losses.9 PD CEN/TR 15316

44、-6-7:2017 CEN/TR 1531667:2017 (E) Operating conditions are taken into account by the efficiencies and standby losses data according to actual operating conditions as compared to test conditions. The losses at 3 test points are calculated from the standby losses and efficiencies by linear interpolati

45、on. A flowchart is given in Annex A. The thermal and electrical energy outputs of the cogeneration unit over the full load range should be known. The energy performance assessment of the cogeneration unit in this standard is based on product testing according to EN 50465:2015. The performance of a c

46、ogeneration unit (thermal efficiency, electrical output) varies with the load and the operation conditions, e.g. heating water temperature. It is supposed that these effects are taken into account, e.g. water temperature, presence of a storage tank, included or not in the cogeneration unit in the te

47、sting of the cogenerator. In the example above a T of 15 K is related to an increase of the efficiency of 20 %. The operation mode depends on boiler / CHP / buffer tank combinations, regulatory frameworks, etc. In general, longer operation periods increase the efficiency of the cogeneration applianc

48、e. Several operation modes may be distinguished as for example: the cogeneration unit is sized to run at full load most of the time, thus the heat output of the CHP unit supplies the base load of the installation. In this case a supplementary generator is needed. the cogeneration unit is sized to ru

49、n on different load ranges (e.g. the cogeneration unit operates as a boiler substitute and supplies the entire heat demand of the building). In this standard no dumped heat is accepted. Therefore the following factors influencing the efficiency should be taken into account: o Water temperature (return/flow); o Start/stop effects (storage tank); o Control; o Part load operation. 6.2 Time steps This method covers the calculation of fuel input, auxiliary energy and recoverable losses of cogeneration uni