GB/T 17581-2021 English PDFUS$609.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17581-2021: Evacuated tube solar collectors Status: Valid GB/T 17581: Historical versions
Basic dataStandard ID: GB/T 17581-2021 (GB/T17581-2021)Description (Translated English): Evacuated tube solar collectors Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: F12 Word Count Estimation: 32,319 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 17581-2021: Evacuated tube solar collectors---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.Evacuated tube solar collectors ICS 27:160 CCSF12 National Standards of People's Republic of China Replaces GB/T 17581-2007 Evacuated Tube Solar Collector Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols and Units 2 5 Product classification and marking 2 6 Technical Requirements 4 7 Test method 6 8 Inspection rules 11 9 Marking, packaging, transportation, storage 12 10 Inspection report 12 Appendix A (Normative) Symbols and Units 13 Appendix B (Informative) Recommended External Dimensions of Evacuated Tube Solar Collectors 14 Appendix C (Normative) Inspection Report Format for Evacuated Tube Solar Collectors 16 Figure 1 Schematic diagram of arrangement of vacuum tube solar collectors 2 Figure 2 The basic structure and main components of the evacuated tube solar collector 3 Figure 3 Schematic diagram of the measurement of the daylighting area of the evacuated tube solar collector with reflector7 Table 1 Collector power6 Table 2 Test sequence of test items for vacuum tube solar collectors 6 Table A:1 Symbols and units 13 Table B:1 Recommended outline and plane dimensions of evacuated tube solar collectors 14 forewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document replaces GB/T 17581-2007 "Evacuated Tube Solar Collectors": Compared with GB/T 17581-2007, except for structural adjustment In addition to the adjustment and editorial changes, the main technical changes are as follows: a) The definitions, technical requirements and test methods of medium temperature efficiency and medium temperature power are added (see 3:1, 3:2, 6:2:13, 7:14); b) The recommended structural dimensions of the evacuated tube solar collectors have been changed (see 5:1:3, Appendix B, 5:1:3 and Appendix B of the:2007 edition); c) Changed the marking of evacuated tube solar collectors (see 5:2, 5:2 of the:2007 edition); d) Added technical requirements for all-glass vacuum solar collector built-in metal heat pipes with fins (see 6:1:3); e) Added technical requirements for all-glass heat pipe vacuum solar collectors (see 6:1:4); f) Added technical requirements for medium temperature all-glass vacuum solar collectors (see 6:1:5); g) Changed the technical requirements for heat-resistant temperature and environmental protection of thermal insulation materials (see 6:1:8, 6:1:9, 6:1:5 of the:2007 edition); h) Added the technical requirements and test methods for the deviation of the nominal daylighting area for the appearance test of the vacuum tube type solar collector (see 6:2:1, 7:2); i) The strength is deleted (see 6:2:4 and 7:5 of the:2007 edition), and the technical requirements and test methods for mechanical load are added (see 6:2:4 and 7:5); j) Added technical requirements and test methods for standard stagnation temperature of vacuum tube solar collectors (see 6:2:6, 7:8); k) Added technical requirements and test methods for the maximum working temperature of vacuum tube solar collectors (see 6:2:12, 7:13); l) Changed the technical requirements and test methods for the thermal performance of vacuum tube solar collectors (see 6:2:13, 7:14,:2007 edition 6:2:11, 7:12); m) Changed the technical requirements and test methods for impact resistance of vacuum tube solar collectors (see 6:2:15, 7:16,:2007 edition of 6:2:13, 7:14); n) Changed the content of the test sequence (see 7:1, 7:1 of the:2007 edition); o) Modified the test method of vacuum tube type solar collectors for air drying (see 7:7, 7:7 of the:2007 edition); p) Changed the rain test method for evacuated tube solar collectors (see 7:11, 7:10 of the:2007 edition); q) Changed the content of Appendix A; r) Changed the content of Appendix C: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Solar Energy Standardization Technical Committee (SAC/TC402): This document was drafted by: China National Institute of Standardization, China Academy of Building Research Co:, Ltd:, Sunrise Oriental Holdings Co:, Ltd:, Shandong Linorite New Energy Co:, Ltd:, Shandong Sangle Group Co:, Ltd:, National Solar Water Heater Quality Supervision and Inspection Center (Beijing), Beijing Building Materials Inspection and Research Institute Co:, Ltd:, Huangming Solar Energy Co:, Ltd:, Sun Rain Group Co:, Ltd:, Four Seasons Muge Technology Collection Group Co:, Ltd:, Beijing University of Technology, Tianpu New Energy Technology Co:, Ltd:, Sump Energy Technology Co:, Ltd:, Chinese Academy of Sciences Engineering Thermophysics Research Institute, Zhongke Future Energy System Research Institute, National Key Laboratory of Market Supervision (Energy Efficiency, Water Efficiency and Greening), Hebei Daorong New Energy Research Institute Technology Co:, Ltd:, Shandong Dongpu Solar Technology Co:, Ltd:, Shandong Sunshine Doctor Solar Engineering Co:, Ltd:, Shandong Guangpu Solar Energy Engineering Co:, Ltd:, Jiangsu Onpitburg Energy Group Co:, Ltd:, Zhejiang Yulu New Energy Technology Co:, Ltd:, Chinese Academy of Sciences Chongqing Green Intelligent Technology Research Institute, Jianke Environmental Energy Technology Co:, Ltd: The main drafters of this document: He Tao, Liu Meng, Zhang Xinyu, Jiao Qingtai, Su Shiqiang, Li Bojia, Gu Xiuzhi, Geng Gang, Wang Min, Zhang Lei, Huang Zhulian, Liu Haibo, Li Kaichun, Wang Shuhuai, Quan Zhenhua, Ding Haibing, Sun Shoujian, Zhang Liangliang, Yang Jie, Zhang Hualiang, Xu Junxiao, Xue Daorong, Qiu Discovery, Zhong Yang, Min Qingxi, Song Minhua, Zhu Xiaodong, Deng Yu, Lu Shirong, Wang Conghui, Yu Yinghe, Wang Boyuan, Bian Mengmeng, Shao Jiajia: This document was first published as GB/T 17581-1998 in:1998, the first revision was in:2007, and this is the second revision: Evacuated Tube Solar Collector1 ScopeThis document specifies the symbols and units, product classification and marking, technical requirements, test methods, inspection Inspection rules, signs, packaging, transportation, storage and inspection reports: This document is applicable to all-glass vacuum tube solar collectors, glass-metal junctions, all-glass vacuum tube solar collectors, which are heated by solar radiation and the heat transfer working medium is liquid: The vacuum tube type solar collector and the heat pipe type vacuum tube type solar collector are constructed:2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 191 Graphical signs of packaging, storage and transportation GB/T 1800:1-2020 Product Geometric Specifications (GPS) Linear Dimension Tolerance ISO Code System Part 1: Tolerances, Basis of Deviation and Fit GB/T 4271 Test method for thermal performance of solar collectors GB/T 6424 Flat-plate solar collector GB/T 12467:3 Quality requirements for fusion welding of metallic materials Part 3: General quality requirements GB/T 12936 Terms for Solar Thermal Utilization GB/T 13384 General technical conditions for packaging of mechanical and electrical products GB/T 17049 All-glass vacuum solar collector tube GB/T 19775 Glass-metal sealed heat pipe vacuum solar collector GB/T 26975 All-glass heat pipe vacuum solar collector tube GB/T 28738 All-glass vacuum solar collector tube built-in metal heat pipe with fins GB/T 33297 Medium temperature (100℃~150℃) all-glass vacuum solar collector tubes3 Terms and DefinitionsThe terms and definitions defined in GB/T 4271, GB/T 6424, GB/T 12936 and GB/T 33297 and the following terms and definitions apply to this document: 3:1 mediumtemperatureefficiency The total irradiance on the lighting surface of the collector is 1000W/m2, the working temperature of the collector is in the range of 100℃~150℃, and the collector is flat: When the temperature difference between the average temperature and the ambient air temperature is 100 °C, the efficiency value of the solar collector is based on the instantaneous efficiency of the collector based on the lighting area: calculated by the rate equation: 3:2 mediumtemperaturepower The total irradiance on the lighting surface of the collector is 1000W/m2, the working temperature of the collector is in the range of 100℃~150℃, and the collector is flat: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17581-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 17581-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 17581-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 17581-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 17581-2021?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 17581-2021 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. |
