1、Industrial furnaces and associated processing equipment - Method of measuring energy balance and calculating energy efficiencyPart 11: Evaluation of various kinds of efficiencyBS ISO 1357911:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Industrial furn
2、aces and associated processing equipment Method of measuring energy balance and calculating energy efficiency Part 11: Evaluation of various kinds of efficiencyFours industriels et quipements associs Mthode de mesure du bilan nergtique et de calcul de lefficacit Partie 11: valuation de diffrents typ
3、es defficacitINTERNATIONAL STANDARDISO13579-11First edition2017-08Reference numberISO 13579-11:2017(E)National forewordThis British Standard is the UK implementation of ISO 1357911:2017.The UK participation in its preparation was entrusted to Technical Committee RHE/13, Oil burning equipment.A list
4、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 contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Lim
5、ited 2017ISBN 978 0 580 94119 1ICS 25.180.01Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate
6、Text affectedBRITISH STANDARDBS ISO 1357911:2017 ISO 2017Industrial furnaces and associated processing equipment Method of measuring energy balance and calculating energy efficiency Part 11: Evaluation of various kinds of efficiencyFours industriels et quipements associs Mthode de mesure du bilan ne
7、rgtique et de calcul de lefficacit Partie 11: valuation de diffrents types defficacitINTERNATIONAL STANDARDISO13579-11First edition2017-08Reference numberISO 13579-11:2017(E)BS ISO 1357911:2017ISO 13579-11:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Swit
8、zerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be re
9、quested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 1357911:2017ISO 13579-11:2017(E)ii ISO 2017 Al
10、l rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the intern
11、et or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrig
12、htiso.orgwww.iso.orgISO 13579-11:2017(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols 45 Boundary and energy (enthalpy) 75.1 Configuration of the area of evaluation . 75.2 Classification of boundary . 75.3 Classification of energy (enthalpy) 85.4 Ca
13、lculation of energy (enthalpy) 115.4.1 Energy input to the heating chamber (Eh) .115.4.2 Energy required for process (Epr) . 125.4.3 Sensible heat of exhaust gas at the outlet of combustion chamber 125.4.4 Sensible heat of exhaust gas at the outlet of heat recovery equipment 135.4.5 Sensible heat of
14、 exhaust gas at the inlet of heat recovery equipment 135.4.6 Recovery heat (Eh,re) . 135.4.7 Thermal energy loss (El) 145.4.8 Electrical energy loss in electroheating (El,eh)155.4.9 Energy consumed in auxiliary equipment (Eaux) .155.4.10 Energy consumed in generation of utilities (Eu,gen) 165.4.11 E
15、lectrical generation loss (El,eg) 165.4.12 Fuel equivalent energy of electricity (Efe,el) 165.4.13 Recycled energy (Ercy) .166 Efficiency based on enthalpy 166.1 General formula . 166.2 Examples of typical efficiencies . 166.2.1 General. 166.2.2 Overall efficiency in accordance with ISO 135791 176.2
16、.3 Heat efficiency on the whole calorific value basis .176.2.4 Heat efficiency on the supplied calorific value basis .176.2.5 Available heat ratio .176.2.6 Combustion efficiency 176.2.7 Effective waste heat recovery ratio in combustion furnace 186.2.8 Waste heat recovery ratio as performance indicat
17、or of heat recovery equipment .186.2.9 Ratio of waste heat of combustion exhaust gas to calorific value of fuel .186.2.10 Converted available heat ratio where waste heat recovery is not considered 187 Efficiency based on exergy 187.1 General 187.2 Boundary . 187.3 Classification of exergy . 187.4 Ca
18、lculation of exergy . 197.4.1 Exergy input from electrical source (EXh,el) 197.4.2 Exergy of fuel (EXh,fuel) 207.4.3 Exergy of exothermic reaction (EXreact,exo) .207.4.4 Exergy of sensible heat of fluid at the inlet (EXs,fluid) .207.4.5 Exergy in energy required for drying and evaporation (EXpr,ev).
19、217.4.6 Exergy required for endothermic reaction for heated material (EXpr,re) .217.4.7 Exergy in given enthalpy to product (EXpr,en) .217.4.8 Exergy of exhaust gas (EXex,oc,EXex,or, EXex,ir) 217.4.9 Recovery exergy (EXh,re) 22 ISO 2017 All rights reserved iiiContents PageBS ISO 1357911:2017ISO 1357
20、9-11:2017(E)7.4.10 Exergy in required for heating jigs and other substance (EXl,j) .227.4.11 Exergy in heat loss from furnace structure (EXl,fs) .227.4.12 Exergy in energy required for heat storage of furnace structure (EXl,hs) 227.4.13 Exergy in given enthalpy to atmosphere gas (EXl,atm) .227.4.14
21、Exergy consumed in electroheating (EXl,eh) .227.4.15 Exergy consumed in auxiliary equipment (EXaux) .237.4.16 Exergy consumed in generation of utilities (EXu,gen) 237.4.17 Exergy of recycled energy (EXrcy) 237.5 Efficiency . 237.5.1 General formula .237.5.2 Examples of typical efficiencies . 238 Des
22、ignation .248.1 General 248.2 Individual item block 258.3 Type of operation . 258.4 Energy source . 258.5 Example 259 Measurement 2610 Evaluation report 26Annex A (informative) Example of energy efficiency evaluation .27Annex B (informative) Comparison of enthalpy efficiency and exergy efficiency of
23、 continuous reheating furnaces .37Annex C (informative) Procedure for estimation of energy saving effect of combustion furnaces 46Bibliography .60iv ISO 2017 All rights reservedBS ISO 1357911:2017ISO 13579-11:2017(E)7.4.10 Exergy in required for heating jigs and other substance (EXl,j) .227.4.11 Exe
24、rgy in heat loss from furnace structure (EXl,fs) .227.4.12 Exergy in energy required for heat storage of furnace structure (EXl,hs) 227.4.13 Exergy in given enthalpy to atmosphere gas (EXl,atm) .227.4.14 Exergy consumed in electroheating (EXl,eh) .227.4.15 Exergy consumed in auxiliary equipment (EXa
25、ux) .237.4.16 Exergy consumed in generation of utilities (EXu,gen) 237.4.17 Exergy of recycled energy (EXrcy) 237.5 Efficiency . 237.5.1 General formula .237.5.2 Examples of typical efficiencies . 238 Designation .248.1 General 248.2 Individual item block 258.3 Type of operation . 258.4 Energy sourc
26、e . 258.5 Example 259 Measurement 2610 Evaluation report 26Annex A (informative) Example of energy efficiency evaluation .27Annex B (informative) Comparison of enthalpy efficiency and exergy efficiency of continuous reheating furnaces .37Annex C (informative) Procedure for estimation of energy savin
27、g effect of combustion furnaces 46Bibliography .60iv ISO 2017 All rights reserved ISO 13579-11:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally
28、 carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the w
29、ork. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the dif
30、ferent approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this documen
31、t may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org
32、/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information
33、 about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 244, Industrial furnaces and associated processing equipment.A list of a
34、ll parts in the ISO 13579 series can be found on the ISO website. ISO 2017 All rights reserved vBS ISO 1357911:2017ISO 13579-11:2017(E)IntroductionThe Kyoto Protocol of the UN Framework Convention on Climate Change defines a system for emission reduction called the Clean Development Mechanism (CDM).
35、 In order for the industrial furnace manufacturers industry to address global warming based on the Kyoto Protocol, it is necessary to have fair guidelines to make use of CDM.ISO 135791 to ISO 135794 focus on evaluating the overall efficiency of industrial furnaces and associated processing equipment
36、 (TPE) system, including electrical energy consumption as fuel equivalent energy, to help the industry facilitate implementation of CDM.However, these documents do not define and specify efficiencies of each specific component of TPE (e.g. heat recovery equipment, heating chambers, etc.), which are
37、directly related to and available for energysaving measures. With this in mind, this document has been developed to specify and provide the following information: definitions of the various kinds of efficiency of TPE using designation systems and by defining energy balance boundaries within the TPE
38、based on its elements;NOTE The definition for TPE efficiency varies according to region. evaluation formulae of energy reduction factors, which are available for actual energy conservation based on the energy balance measurements.In addition to these evaluations in terms of enthalpy, this document a
39、lso deals with energy efficiency based on exergy, i.e. efficiency based on availability of fuel energy, for the following reasons. The whole amount of “energy” in the “closed” terrestrial system is preserved due to the conservation law of energy while “exergy” inherently decreases. The term “energy”
40、 related to energy crisis or energy issue is “exergy”. Therefore, it may be said that controlling the degrees of a decrease in exergy (or dissipation of available energy) is the essence of the energy crisis. As such, exergy is one of the indexes to evaluate the energy efficiency of TPE. It enables a
41、 fair comparison among heating furnaces with different heating conditions or heated materials as a result of a common thermodynamic viewpoint. Improvement in exergy efficiency leads to essential efficiencyenhancing measures in energy usage.vi ISO 2017 All rights reservedBS ISO 1357911:2017ISO 13579-
42、11:2017(E)IntroductionThe Kyoto Protocol of the UN Framework Convention on Climate Change defines a system for emission reduction called the Clean Development Mechanism (CDM). In order for the industrial furnace manufacturers industry to address global warming based on the Kyoto Protocol, it is nece
43、ssary to have fair guidelines to make use of CDM.ISO 135791 to ISO 135794 focus on evaluating the overall efficiency of industrial furnaces and associated processing equipment (TPE) system, including electrical energy consumption as fuel equivalent energy, to help the industry facilitate implementat
44、ion of CDM.However, these documents do not define and specify efficiencies of each specific component of TPE (e.g. heat recovery equipment, heating chambers, etc.), which are directly related to and available for energysaving measures. With this in mind, this document has been developed to specify a
45、nd provide the following information: definitions of the various kinds of efficiency of TPE using designation systems and by defining energy balance boundaries within the TPE based on its elements;NOTE The definition for TPE efficiency varies according to region. evaluation formulae of energy reduct
46、ion factors, which are available for actual energy conservation based on the energy balance measurements.In addition to these evaluations in terms of enthalpy, this document also deals with energy efficiency based on exergy, i.e. efficiency based on availability of fuel energy, for the following rea
47、sons. The whole amount of “energy” in the “closed” terrestrial system is preserved due to the conservation law of energy while “exergy” inherently decreases. The term “energy” related to energy crisis or energy issue is “exergy”. Therefore, it may be said that controlling the degrees of a decrease i
48、n exergy (or dissipation of available energy) is the essence of the energy crisis. As such, exergy is one of the indexes to evaluate the energy efficiency of TPE. It enables a fair comparison among heating furnaces with different heating conditions or heated materials as a result of a common thermod
49、ynamic viewpoint. Improvement in exergy efficiency leads to essential efficiencyenhancing measures in energy usage.vi ISO 2017 All rights reserved Industrial furnaces and associated processing equipment Method of measuring energy balance and calculating energy efficiency Part 11: Evaluation of various kinds of efficiency1 ScopeThis document specifies classifications and designations in the methodology of energy efficiency evaluation of industrial furnaces and associated processing equ
