GB 21258-2024 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 21258-2024: Norm of energy consumption per unit production of coal-fired power generation Status: Valid GB 21258: Historical versions
Basic dataStandard ID: GB 21258-2024 (GB21258-2024)Description (Translated English): Norm of energy consumption per unit production of coal-fired power generation Sector / Industry: National Standard Classification of Chinese Standard: F01 Classification of International Standard: 27.010 Word Count Estimation: 10,149 Date of Issue: 2024-09-29 Date of Implementation: 2025-04-01 Older Standard (superseded by this standard): GB 21258-2017,GB 35574-2017 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB 21258-2024: Norm of energy consumption per unit production of coal-fired power generation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.ICS 27.010 CCSF01 National Standard of the People's Republic of China Replaces GB 21258-2017, GB 35574-2017 Energy consumption limit per unit product of coal-fired power generation units Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Energy consumption limit level 2 5 Technical Requirements 2 6 Statistical scope and calculation method 5 7 Implementation of standards 5ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB 21258-2017 "Energy consumption limits per unit product of conventional coal-fired power generation units" and GB 35574-2017 " Compared with GB 21258-2017 and GB 35574-2017, in addition to structural adjustments and editorial In addition to the modifications, the main technical changes are as follows. a) The scope of application of the standard has been changed (see Chapter 1, Chapter 1 of GB 21258-2017 and GB 35574-2017); b) Added terms and definitions (see Chapter 3); c) The energy consumption level index values have been changed (see Chapter 4, GB 21258-2017 and Chapter 4 of GB 35574-2017); d) The technical requirements for energy consumption limit values have been changed (see 5.1, 5.1 of GB 21258-2017 and 5.2 of GB 35574-2017); e) The technical requirements for energy consumption entry values have been changed (see 5.2, 5.2 of GB 21258-2017 and 5.3 of GB 35574-2017); f) The influencing factors and correction coefficients of energy consumption limit values have been changed (see 5.3, 5.3 of GB 21258-2017 and GB 35574-2017 5.4); g) Added altitude correction factor (see 5.3.5); h) Added the correction method for coal consumption of heating units (see 5.3.6). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Standardization Administration. The previous versions of this document and the documents it replaces are as follows. ---First published in.2007 as GB 21258-2007 "Energy consumption limits per unit product of conventional coal-fired generating units", and revised in.2013 The first revision was carried out in.2011 and the second revision was carried out in.2017; --- This is the third revision, and the revision incorporates GB 35574-2017 "Energy consumption limits for combined heat and power unit products" content. Energy consumption limit per unit product of coal-fired power generation units1 ScopeThis document specifies the limit level, technical requirements, statistical scope and calculation of unit product energy consumption (hereinafter referred to as energy consumption) of coal-fired power generation units. Calculation method. This document is applicable to the calculation and assessment of the coal consumption rate for power supply and heating of coal-fired generating units, as well as the energy consumption control of newly built units. This document is not applicable to back pressure units and comprehensive resource utilization units.2 Normative referencesThe contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 2589 General rules for comprehensive energy consumption calculation GB/T 12723 General rules for the compilation of energy consumption limits per unit product DL/T 904 Calculation methods for technical and economic indicators of thermal power plants DL/T 1365 Terminology and Terms Electricity Energy Saving DL/T 1752 Calculation method for design energy efficiency index of cogeneration unit DL/T 1929 Energy efficiency evaluation method for coal-fired units3 Terms and definitionsThe terms and definitions defined in GB/T 2589, GB/T 12723, DL/T 904, DL/T 1365, DL/T 1929 and the following terms and definitions apply to This document. 3.1 net[standard]coalconsumptionrate During the statistical period, the average amount of standard coal consumed by the unit for each 1kW·h of electricity provided externally. [Source. DL/T 1365-2014, 5.3.1.19, modified] 3.2 Heating [standard] coal consumption rate During the statistical period, the average amount of standard coal consumed by the unit to provide 1GJ of heat to the outside. [Source. DL/T 1365-2014, 5.3.1.18, modified] 3.3 During the statistical period, the ratio of the average output power of the unit to the rated power of the unit, that is, the ratio of the unit utilization hours to the operating hours. [Source. DL/T 1365-2014, 4.2.12, modified] 3.4 heat-supplyratio During the statistical period, the percentage of the heat supplied to the outside by the unit through the steam turbine to the heat consumption of the steam turbine unit. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 21258-2024_English be delivered?Answer: Upon your order, we will start to translate GB 21258-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB 21258-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 21258-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
