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GB/T 45234.302-2025: Solar thermal electric plants - Part 3-2: Systems and components - General requirements and test methods for large-size parabolic-trough collectors
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Solar thermal electric plants - Part 3-2: Systems and components - General requirements and test methods for large-size parabolic-trough collectors
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GB/T 45234.302-2025
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Basic data | Standard ID | GB/T 45234.302-2025 (GB/T45234.302-2025) | | Description (Translated English) | Solar thermal electric plants - Part 3-2: Systems and components - General requirements and test methods for large-size parabolic-trough collectors | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F12 | | Classification of International Standard | 27.160 | | Word Count Estimation | 22,245 | | Date of Issue | 2025-01-24 | | Date of Implementation | 2025-08-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45234.302-2025: Solar thermal electric plants - Part 3-2: Systems and components - General requirements and test methods for large-size parabolic-trough 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.
National Standard of the People's Republic of China
ICS 27.160CCS F 12
Solar thermal power station
Part 3-2.Systems and components Large-scale parabolic surfaces
General requirements and test methods for trough collectors
Solar thermal electric plants-Part 3⁃2.Systems and components-
General requirements and test methods for large⁃size parabolic⁃trough collectors
(IEC TS 62862⁃3⁃2..2018, IDT)
2025-01-24 Release
2025-08-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface Ⅲ
1 Scope...1
2 Normative references ...1
3 Terms, definitions and symbols 1
4 Test requirements 2
5 Measuring instruments...2
5.1 Solar radiation measurement 2
5.2 Flow Measurement 2
5.3 Temperature Measurement 2
5.4 Wind speed measurement 2
5.5 Data Collection 2
5.6 Tracking Accuracy Measurement 2
6 Test steps 3
6.1 Sample Description 3
6.2 Test equipment (installation/assembly/cleaning) ...3
6.3 Measurement Procedure 4
6.4 Calculation and test results 5
7 Report Format 7
Appendix A (Informative) Description/Requirements of Parabolic Trough Collectors 8
A.1 General description 8
A.2 Operation Mode 10
Appendix B (Normative) Requirements for the contents of collector description documents 11
B.1 General Configuration of Parabolic Trough Collectors 11
B.2 Geometric characteristics of parabolic trough collectors 11
B.3 Mechanical properties of parabolic trough collectors 11
B.4 Optical performance of parabolic trough collectors 12
B.5 Parabolic Trough Collector Operation Mode Description 12
B.6 Optics and Tracking Accuracy 12
B.7 Requirements for parabolic trough collector components 12
Appendix C (Informative) Test report content requirements 14
C.1 Overview 14
C.2 Collector Characteristics 14
C.3 Collector Limits 15
C.4 Description of the test apparatus 15
C.5 Test Results 15
References ...16
Foreword
This document is in accordance with GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is equivalent to IEC TS 62862-3-2..2018 "Solar thermal power plants Part 3-2.Systems and components - Large size
General requirements and test methods for surface trough collectors.
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 was proposed by the China Electricity Council.
This document is under the jurisdiction of the National Technical Committee for Solar Thermal Power Generation Standardization (SAC/TC 565).
This document was drafted by. Changzhou Longteng Solar Thermal Technology Co., Ltd., China Datang Group Science and Technology Research Institute Co., Ltd.,
China Datang Group Technology Innovation Co., Ltd. and CGN Wind Power Co., Ltd.
The main drafters of this document are. Lu Zhiheng, Hu Qiao, Tang Hongfen, Yin Hang, Wang Jinsong, Zhu Bin, Chen Hongsheng, Liu Yingli, Zhao Xiong, Yan Jingshu,
Wang Qiang, Chen Chuanchao, Guo Lei, Zhang Ji, Wang Zhiliang, Che Sheng, Liu Junwei, and Chen Chen.
Solar thermal power station
Part 3-2.Systems and components Large-scale parabolic surfaces
General requirements and test methods for trough collectors
1 Scope
This document describes the performance characteristics and test methods for large parabolic trough collectors.
This document covers the optical and thermal performance of parabolic trough collectors and the methods for determining the tracking accuracy of the collector single-axis tracking system.
The test method is only suitable for outdoor testing.
This document applies to trough collectors equipped with matching tracking devices.
The test methods in this document are not applicable to collectors where the working fluid undergoes phase changes under operating conditions.
This document applies to complete collectors.
2 Normative references
The contents of the following documents constitute the 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.
IEC TS 62862-1-1 Solar thermal electric plants - Part 1-1.Terminology
1.Terminology）
Note. GB/T 40104-2021 Terminology of solar thermal power plants (IEC TS 62862-1-1..2018, IDT)
ISO 9488 Solar energy - Vocabulary
Note. GB/T 12936-2007 Terminology for solar thermal utilization (ISO 9488.1999, NEQ)
ISO 9806.2017 Solar energy - Solar thermal collectors - Test methods
methods)
3 Terms, definitions and symbols
3.1 Terms and Definitions
For the purpose of this document, the terms and definitions defined in ISO 9488 and ISO 9806.2017 apply.
3.2 Notation
The following symbols apply to this document.
β real. Tilt angle (measured by tilt sensor) (°)
ρ test. The measured value of the reflectance of the mirror obtained during the test (-)
ρnorm. Nominal value of reflectance of the reflector installed in the collector (-)
qT. Tilt error of the tracking system (°)
FC. Ratio of the product of the reflectance of the mirror and the transmittance of the glass tube measured during the test to the product of the nominal values of reflectance and transmittance
creflector. The ratio between the measured value of the specular reflectance of the reflector and the nominal value of the specular reflectance of the reflector
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