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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 27698.1-2023: Test methods for the performance of heat exchangers and heat exchange elements - Part 1: General requirements Status: Valid GB/T 27698.1: Historical versions
Basic dataStandard ID: GB/T 27698.1-2023 (GB/T27698.1-2023)Description (Translated English): Test methods for the performance of heat exchangers and heat exchange elements - Part 1: General requirements Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J75 Classification of International Standard: 27.060.30 Word Count Estimation: 28,235 Date of Issue: 2023-05-23 Date of Implementation: 2023-05-23 Older Standard (superseded by this standard): GB/T 27698.1-2011,GB/T 27698.8-2011 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 27698.1-2023: Test methods for the performance of heat exchangers and heat exchange elements - Part 1: General requirements---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. ICS27:060:30 CCSJ75 National Standards of People's Republic of China Replacing GB/T 27698:1-2011, GB/T 27698:8-2011 Performance test method of heat exchanger and heat transfer element Part 1: General requirements Part 1: General requirements 2023-05-23 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols and units 2 5 Test method 3 5:1 Test System 3 5:2 Measuring instruments 7 5:3 Measurement method 7 5:4 Measurement parameters and raw data 9 5:5 Industrial Calibration 10 6 Data processing 10 6:1 Data calculation 10 6:2 Performance determination 11 6:3 Uncertainty12 7 Test report 12 Appendix A (Normative) Industrial Calibration of Heat Exchangers 13 A:1 Test method 13 A:2 Data processing 15 A:3 Calibration report 17 Appendix B (Informative) Calculation of Uncertainty 18 B:1 Measurand18 B:2 Random uncertainty18 B:3 System uncertainty18 B:4 Combined uncertainty18 Appendix C (Informative) Thermophysical Properties of Water, Saturated Water Vapor and Dry Air 19 Reference 22forewordThis 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 is part 1 of GB/T 27698 "Test Methods for Performance of Heat Exchangers and Heat Transfer Elements": GB/T 27698 has been issued the following sections: --- Part 1: General requirements; --- Part 2: Heat exchangers; --- Part 3: Heat transfer elements; --- Part 4: Determination of air cooler noise: This document replaces GB/T 27698:1-2011 "Test methods for performance of heat exchangers and heat transfer elements - Part 1: General requirements" and GB/T 27698:8-2011 "Performance Test Methods for Heat Exchangers and Heat Transfer Elements Part 8: Industrial Calibration of Heat Exchangers": This document ends with GB/T 27698:1-2011 is the main content, integrating the contents of GB/T 27698:8-2011: Compared with GB/T 27698:1-2011, except knot In addition to structural adjustments and editorial changes, the main technical changes are as follows: a) Added the terms and definitions of "heat exchanger", "heat transfer element", "performance" and "industrial calibration" (see Chapter 3); b) Added pool boiling heat transfer performance test system (see 5:1:4); c) The accuracy requirements for measuring instruments have been changed (see 5:2:1, 4:2:1 and 4:2:2 of GB/T 27698:1-2011); d) Added the regulations on the measurement parameters and original data of the pool boiling heat transfer performance test (see 5:4:4); e) Change the regulations on the calculation of performance test data (see 6:1, Chapter 7 of GB/T 27698:1-2011); f) Added provisions for data processing of pool boiling heat transfer performance test (see 6:1:4); g) Changed the provisions for determining the performance of the vapor-liquid condensation performance test (see 6:2:2, 5:3:2 of GB/T 27698:1-2011); h) Changed the provisions for determining the performance of the vapor-liquid flow boiling and evaporation performance test (see 6:2:3, GB/T 27698:1-2011 5:3:3); i) Added the provisions for determining the performance of the pool boiling heat transfer performance test (see 6:2:4); j) Increased uncertainty requirements (see 6:3); k) Changed the test report requirements (see Chapter 7, Chapter 9 of GB/T 27698:1-2011): Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Standardization Technical Committee of Boilers and Pressure Vessels (SAC/TC262): This document is drafted by: Gansu Lanke Petrochemical High-tech Equipment Co:, Ltd:, Shanghai Lanbin Petrochemical Equipment Co:, Ltd:, Xi'an Jiaotong Tong University, Tsinghua University, Sinopec Engineering Construction Co:, Ltd:, Sinopec Guangzhou Engineering Co:, Ltd:, Shanghai Lanhai Kechuang Testing Co:, Ltd: Division, Shanghai Special Equipment Supervision and Inspection Technology Research Institute, China Special Equipment Inspection and Research Institute, Machinery Industry Lanzhou Petrochemical Equipment Inspection Ltd: The main drafters of this document: Jiang Chen, Zhou Wenxue, Bai Bofeng, Jiang Peixue, Gao Liping, Zhang Yingkai, Xu Ruina, Chen Zhiwei, Deng Fangyi, Chen Zhanyang, Ren Bin, Ma Yiming, Zhang Yanfeng: This document was first released in:2011; this is the first revision, incorporating GB/T 27698:8-2011 "Heat exchangers and heat transfer elements Component Performance Test Method Part 8: Industrial Calibration of Heat Exchangers" (GB/T 27698:8-2011 was first released in:2011):IntroductionPerformance testing is the most accurate method of determining the flow and heat transfer characteristics of heat exchangers and heat transfer elements: In order to ensure that the performance test is carried out in an orderly manner GB/T 27698 aims to establish the test system, test conditions and data processing generally applicable to the performance test of heat exchangers and heat transfer elements: The method and test report requirements are proposed to be composed of four parts: --- Part 1: General requirements: The purpose is to establish a test system and test system suitable for performance testing of various heat exchangers and heat transfer elements: General requirements for measuring instruments, measuring methods, data processing methods and test reports: --- Part 2: Heat exchangers: The purpose is to establish product parameter information, test procedures, Data processing results and test report requirements: --- Part 3: Heat transfer elements: The purpose is to establish the steam-gas condensation test methods and products for performance testing of various typical heat transfer elements Parameter information, test procedures, data processing results and test report requirements: --- Part 4: Determination of air cooler noise: The purpose is to establish the measurement parameters, test environment, test instruments, Test methods and test report requirements: Since it is impossible and unnecessary for GB/T 27698 to include all the technical details of performance testing of heat exchangers and heat transfer elements, Therefore, on the premise of meeting the accuracy requirements, there are no restrictions on the technical content not specifically mentioned in this document: GB/T 27698 does not restrict the use of advanced testing techniques and methods in performance testing, but engineers and technicians use advanced techniques When using technical methods, it is appropriate to make reliable judgments about their scientificity and accuracy: Performance test method of heat exchanger and heat transfer element Part 1: General requirements1 ScopeThis document describes a general method for performance testing of heat exchangers and heat transfer elements, including test systems, measuring instruments, measurement methods, data Processing methods and test report requirements: This document is applicable to test fluids which are liquid-liquid, steam-liquid, steam-air liquid-liquid without phase change, vapor-liquid condensation with phase change, Performance test of phase transition between vapor-liquid boiling and evaporation, and phase transition between vapor-gas condensation:2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 151 heat exchanger GB/T 7724 Electronic Weighing Instrument GB/T 27418 Evaluation and Expression of Measurement Uncertainty NB/T 47004:1 Plate heat exchangers Part 1: Removable plate heat exchangers NB/T 47004:2 Plate heat exchangers Part 2: Welded plate heat exchangers NB/T 47007 Air-cooled heat exchanger NB/T 47045 Brazed plate heat exchanger NB/T 47048 spiral plate heat exchanger3 Terms and DefinitionsGB/T 151, GB/T 27418, NB/T 47004:1, NB/T 47004:2, NB/T 47007, NB/T 47045, NB/T 47048 defined and the following terms and definitions apply to this document: 3:1 heat exchanger heatexchanger Equipment that transfers heat from a hot fluid to a cold fluid to meet specified process requirements: 3:2 heat transfer element heatexchangeelement Parts in the heat exchanger that directly participate in heat transfer: 3:3 performance performance The properties and functions of machinery, equipment, objects, etc: Note: The performance in this document refers to the heat transfer and flow functional characteristics of heat exchangers and heat transfer elements, as well as the noise characteristics of air-cooled heat exchangers: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 27698.1-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 27698.1-2023_English as soon as possible, and keep you informed of the progress. 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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/T 27698.1-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 27698.1-2023 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. |
