CEN TR 12098-7-2016 Controls for heating systems - Part 7 Accompanying TR prEN 12098-3 2015 - Modules M3-5 6 7 8.pdf

1、PD CEN/TR 12098-7:2016Controls for heating systemsPart 7: Accompanying TR prEN12098-3:2015 Modules M3-5,6,7,8BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06PD CEN/TR 12098-7:2016 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementation of

2、CEN/TR 12098-7:2016.The UK participation in its preparation was entrusted to Technical Committee RHE/16, Performance requirements for control systems.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

3、 necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 92595 5 ICS 91.140.10; 97.120 Compliance with a British Standard cannot confer immunity from legal obligations.This Br

4、itish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2016.Amendments/corrigenda issued since publicationDate Text affectedPD CEN/TR 12098-7:2016TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 12098-7 August 2016 ICS 91.140.10; 97.

5、120 English Version Controls for heating systems - Part 7: Accompanying TR prEN 12098-3:2015 - Modules M3-5,6,7,8 Begleitender TR zu EN 12098-3 This Technical Report was approved by CEN on 11 April 2016. It has been drawn up by the Technical Committee CEN/TC 247. CEN members are the national standar

6、ds 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, Slove

7、nia, 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 2016 CEN All rights of exploitation in any form and by any means reserved

8、worldwide for CEN national Members. Ref. No. CEN/TR 12098-7:2016 EPD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Symbols and abbreviations . 7 4.1 Symbols . 7 4.2 Abbreviations . 7 5

9、Control heating systems, general design rules . 8 5.1 Control heating systems, main design rules, general design rules . 8 5.2 Partitioning control heating zones in buildings 8 5.3 Generation, distribution, emission control . 8 5.3.1 General 8 5.3.2 Generation . 8 5.3.3 Distribution . 8 5.3.4 Emissi

10、on . 9 6 Control heating functions and they impact . 10 6.1 OTC - Outside Temperature Compensated control 10 6.2 Added functions to OTC control 11 6.2.1 Auto tuning heating curve parameters 11 6.2.2 Compensation by emitters energy demand transmission 11 6.2.3 Other meteorological variables and forec

11、ast 11 6.2.4 OSS - Optimum Start-Stop scheduling . 11 6.2.5 OSS generation impact . 12 6.2.6 OSS distribution impact . 12 6.2.7 OSS emission impact . 13 6.3 Added functions to OSS 13 6.3.1 Auto tuning OSS parameters 13 6.3.2 Summer-winter switch . 13 7 Integrated functions in control systems and the

12、ir impact 13 7.1 Integrated functions 13 7.2 Central control effect on room temperature control 14 7.2.1 General . 14 7.2.2 Heating power control accuracy . 14 7.2.3 Heating curve adaptation 14 7.2.4 Calculating contribution of central control to emission control. 14 Bibliography . 16 PD CEN/TR 1209

13、8-7:2016CEN/TR 12098-7:2016 (E) 3 European foreword This document (CEN/TR 12098-7:2016) has been prepared by Technical Committee CEN/TC 247 “Building Automation, Controls and Building Management”, the secretariat of which is held by SNV. Attention is drawn to the possibility that some of the element

14、s of this document may be the subject of patent rights. CEN 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 is currently divided

15、 into the following parts: Controls for heating systems Part 1: Control equipment for hot water heating systems; Controls for heating systems Part 3: Control equipment for electrical heating systems; Controls for heating systems Part 5: Start-stop schedulers for heating systems; Controls for heating

16、 systems Part 6: Accompanying TR prEN 12098-1:2015 Modules M3-5,6,7,8 Technical Report; currently at Voting stage; Controls for heating systems Part 7: Accompanying TR prEN 12098-3:2015 Modules M3-5,6,7,8 the present Technical Report; currently at Voting stage; Controls for heating systems Part 8: A

17、ccompanying TR prEN 12098-5:2015 Modules M3-5,6,7,8 Technical Report; currently at Voting stage. PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 4 Introduction The CENSE project, the discussion between CEN and the Concerted action highlighted the high page count of the entire package due to a lot of “

18、textbook” information. This resulted in flooding and confusing the normative text. A huge amount of informative contents shall indeed be recorded and available for users to properly understand, apply and nationally adapt the EPB standards. The detailed technical rules CEN/TS 16629 ask for a clear se

19、paration between normative and informative contents: to avoid flooding and confusing the actual normative part with informative content; to reduce the page count of the actual standard; to facilitate understanding of the package. Therefore each EPB standard shall be accompanied by an informative tec

20、hnical report, like this one, where all informative content is collected. PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 5 Table 1 shows the relative position of this TR within the EPB set of standards. Table 1 Relative position of this TR within the EN EPB package of standards Over-arching Building

21、(as such) Technical Building System SubmoduleDescriptionsDescriptionsDescriptionsHeatingCoolingVentilationHumidificationDehumidificationDomesticHotwatersLightingBuildingautomationand controlPV, wind, sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 1 General General General 2 Common terms and definitions; sy

22、mbols, units and subscripts Building Energy Needs Needs 3 Application (Free) Indoor Conditions without Systems Maximum Load and Power 4 Ways to Express Energy Performance Ways to Express Energy Performance Ways to Express Energy Performance 5 Building Functions and Building Boundaries Heat Transfer

23、by Transmission Emission and control x 6 Building Occupancy and Operating Conditions Heat Transfer by Infiltration and Ventilation Distribution and control x 7 Aggregation of Energy Services and Energy Carriers Internal Heat Gains Storage and control x 8 Building Partitioning Solar Heat Gains Genera

24、tion and control x 9 Calculated Energy Performance Building Dynamics (thermal Load dispatching PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 6 Over-arching Building (as such) Technical Building System SubmoduleDescriptionsDescriptionsDescriptionsHeatingCoolingVentilationHumidificationDehumidificatio

25、nDomesticHotwatersLightingBuildingautomationand controlPV, wind, sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 mass) and operating conditions 10 Measured Energy Performance Measured Energy Performance Measured Energy Performance 11 Inspection Inspection Inspection 12 Ways to Express Indoor Comfort BMS 13

26、External Environment Conditions 14 Economic Calculation PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 7 1 Scope This Technical Report refers to prEN 12098-3, Controls for heating systems Part 3: Control equipment for electrical heating systems Modules M3-5,6,7,8. It contains information to support t

27、he correct understanding, use and national adaption of prEN 12098-3:2015. 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 da

28、ted references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. prEN 12098-1:2015, Controls for heating systems - Part 1: Control equipment for hot water heating systems - Modules M3-5,6,7,8 prEN 12098-3:2015,

29、Controls for heating systems - Part 3: Control equipment for electrical heating systems - Modules M3-5,6,7,8 prEN 15232-1:2015, Energy performance of buildings - Part 1: Impact of Building Automation, Controls and Building Management - Modules M10-4,5,6,7,8,9,10 EN 153162-3:2007, Heating systems in

30、buildings - Method for calculation of system energy requirements and system efficiencies - Part 2-3: Space heating distribution systems prEN ISO 52000-1:2015, Energy performance of buildings - Overarching EPB assessment - Part 1: General framework and procedures (ISO/DIS 52000-1:2015) EN ISO 7345:19

31、95, Thermal insulation - Physical quantities and definitions (ISO 7345:1987) 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 12098-3:2015 (the accompanied EPB standard) apply. 4 Symbols and abbreviations 4.1

32、Symbols For the purposes of this document, the symbols given in prEN ISO 52000-1:2015 and prEN 12098-3:2015 (the accompanied EPB standard) apply. 4.2 Abbreviations Abbreviation Term OTC outside temperature compensated RTC room temperature control FSS fixed start-stop scheduling OSS optimum start sto

33、p scheduling PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 8 5 Control heating systems, general design rules 5.1 Control heating systems, main design rules, general design rules Efficient Heating control system consists on integrated functions applied to all parts of heating system taking account pr

34、edictable or detected occupancy and other events as smart metering information, . etc. 5.2 Partitioning control heating zones in buildings For efficiently control heating, the heating power shall satisfy heat demand. For this purpose, heating power is compensated by outside temperature and scheduled

35、 for intermittent heating in relation with conditions of use. For efficiency of control systems, the heating system distribution building shall be partitioned into zones or spaces with uniform conditions of use, NOTE Partitioning of heating systems described on prEN ISO 52000-1:2015, 9, D.2, D.3, ma

36、y usefully be applied for the design of heating systems. BAC heating control system shall have multiple controls and intermittent scheduling adapted to zones or elementary spaces conditions of use. Special attention shall be done to keep watch for update set points and schedulers to real conditions

37、of use and needs, during exploitation. For satisfy these indications size of zones shall be limited. NOTE An indication is given in EN 1531623:2007, A2: limit zones area to 1 000 m2. 5.3 Generation, distribution, emission control 5.3.1 General As a general rule, heating control systems consists to i

38、ntegrate many functions applied to central (generation, storage), zone (distribution) and room (emission) parts of heating systems. OTC control and OSS and complementary integrated functions specified by prEN 12098-3:2015 fulfil items in prEN 15232-1:2015, Table 4, 1.3. NOTE Better control and sched

39、uling of heating systems imply a data communication network linking control devices for integration of these functions and other technical building management capabilities for energy performance. 5.3.2 Generation Generation part consists to switch on-off or to modulate the available heating power. F

40、or this part, objectives of control functions are: the lowest heating power satisfying the higher zone demand the longest reduced (or stop) heating power satisfying the shorter reduced (or stop) heating zone period. For single zone distribution, generation control take account thermal characteristic

41、s and conditions of use (see prEN 52000-1:2015, Clause 9, D.2, D.3). 5.3.3 Distribution Distribution parts are controlled in the same way as for generation, switching or modulating available electrical power, for same objectives. PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 9 5.3.4 Emission The aim

42、 of individual control consist to adapt conditions of operation (individual room temperature set point and scheduling), to consumers needs (see prEN 15232-1:2015, Figure 1) and to compensate room heat gains, reducing heating for comfort and energy saving. Individual room temperature control performa

43、nce doesnt depend only of individual controllers; it depends also of the available heating power limited by central (generation, distribution) control, mainly for these cases: Emitters are not equipped with efficient electronic individual controllers (conform to prEN 15500-1:2015). Users are not enc

44、ouraged to adapt the set point of their room temperature controller considering their comfort needs related to energy consumption. Heated room or space doesnt permit to measure a representative temperature for individual (closed loop) control, e.g.: entrance, corridor, reception hall, exhibition hal

45、l, atrium, Emission control is operated only by the central power control (generation, distribution parts). Whatever, for avoid energy wasting by unusual use, inattentive settings or defaults of room controllers, the central OTC control limit the available heating power. EXAMPLE Room temperature abl

46、e to be reached by OTC controlled available power may be limited to 22 C, room controller reduce this level, reducing power emitter. PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 10 Key 1 generation 2 distribution 3 emission 4 OTC control and OSS 5 power control 6 digital networks S1, S2, S3 element

47、ary spaces Z1, Z2 zones Figure 1 Example of control parts of a heating system 6 Control heating functions and they impact 6.1 OTC - Outside Temperature Compensated control Heating power modulation by OTC control (function in standalone devices or BAC system) shall be applied to generation and distri

48、bution parts (see Figure 1). prEN 12098-3:2015 specifies functionalities and tests of OTC devices and functions, including OSS function. prEN 15232-1:2015 gives many indication for calculate effects of OTC control for distribution. PD CEN/TR 12098-7:2016CEN/TR 12098-7:2016 (E) 11 Table 2 Impact of O

49、TC flow temperature on distribution heating part 1.3 Control of distribution network hot water temperature (supply or return) HEAT_DISTR_CTRL Similar function can be applied to the control of direct electric heating networks 0 No automatic control 1 Outside temperature compensated control: Actions generally lower the mean flow temperature 2 Demand based control: e.g. based on indoor temperature control variable; Actions generally lower the mean flow temperatur