GB/T 27748.2-2022 PDF English
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Stationary fuel cell power system - Part 2: Performance test methods
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| GB/T 27748.2-2013 | English | 810 |
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GB/T 27748.2-2022: Stationary fuel cell power system - Part 2: Performance test methods---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT27748.2-2022
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.070
CCS K 82
GB/T 27748.2-2022 / IEC 62282-3-200.2015
Replacing GB/T 27748.2-2013
Stationary fuel cell power system - Part 2.Performance test
methods
(IEC 62282-3-200.2015, Fuel cell technologies - Part 3-200.Stationary fuel cell
power systems - Performance test methods, IDT)
Issued on. MARCH 09, 2022
Implemented on. OCTOBER 01, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword... 4
Introduction... 6
1 Scope... 7
2 Normative references... 8
3 Terms, definitions, operating process and symbols... 12
3.1 Terms and definitions... 12
3.2 Operating process... 19
3.3 Symbols... 20
4 Reference conditions... 24
4.1 General... 24
4.2 Temperature and pressure... 24
4.3 Heating value base... 24
5 Item of performance test... 24
6 Test preparation... 25
6.1 General... 25
6.2 Uncertainty analysis... 25
7 Measurement instruments and measurement methods... 26
7.1 General... 26
7.2 Measurement instruments... 26
7.3 Measurement methods... 27
8 Test plan... 38
8.1 General... 38
8.2 Ambient conditions... 39
8.3 Maximum permissible variation in steady-state operating conditions... 39
8.4 Test operating procedure... 40
8.5 Duration of test and frequency of readings... 41
9 Test methods and computation of test results... 41
9.1 General... 41
9.2 Efficiency test... 41
9.3 Electric power and thermal power response characteristics test... 59
9.4 Start-up and shutdown characteristics test... 65
9.5 Purge gas consumption test... 70
9.6 Water consumption test (optional)... 71
9.7 Exhaust gas emission test... 71
9.8 Noise level test... 73
9.9 Vibration level test... 74
9.10 Discharge water quality test... 75
10 Test reports... 76
10.1 General... 76
10.2 Title page... 76
10.3 Table of contents... 77
10.4 Summary report... 77
10.5 Detailed report... 77
10.6 Full report... 78
Annex A (Normative) Uncertainty analysis... 79
Annex B (Normative) Calculation of fuel heating value... 83
Annex C (Normative) Reference gas... 87
Annex D (Informative) Maximum acceptable instantaneous power output transient 90
Bibliography... 91
Foreword
This document is drafted in accordance with GB/T 1.1-2020 "Directives for
standardization - Part 1.Rules for the structure and drafting of standardizing
documents".
The document is Part 2 of GB/T 27748 "Stationary fuel cell power system". GB/T
27748 has issued the following parts.
- Part 1.Safety;
- Part 2.Performance test methods;
- Part 3.Installation;
- Part 4.Performance test methods for small fuel cell power systems.
This document replaces GB/T 27748.2-2013 "Stationary fuel cell power systems - Part
2.Performance test methods". Compared with GB/T 27748.2-2013, in addition to
structural adjustment and editorial changes, the main technical changes are as follows.
- Delete the terms and definitions of "Audible noise level", "Emission
characteristics", "Parasitic load", "Pressure", "Secondary thermal power", and
"Standby state (idle state)" (see 3.1.1, 3.1.8, 3.1.18, 3.1.21, 3.1.25, and 3.1.29 of
the 2013 edition);
- Add terms and definitions of "External thermal energy", "Noise level", "Pre-
generation state", "Rated power", "Total power input", and "Waste water" (see
3.1.7, 3.1.14, 3.1.20, 3.1.22, 3.1.33, and 3.1.35);
- Add the content of operating process (see 3.2);
- Modify some test contents in Table 2 (see Table 2; Table 2 of the 2013 edition);
- Delete "Exhaust gas flow measurement" and "Hydrogen concentration
measurement" (see 7.3.7 and 7.3.7.9 of the 2013 edition);
- Add requirements for gas sampling (see 7.3.7.1);
- Modify "Audible noise level measurement" to "Noise level test" (see 7.3.9; 7.3.9
of the 2013 edition);
- Add criteria for attaining the steady-state set value (see 9.3.2);
- Add requirements for maximum acceptable instantaneous power output transient
(see Annex D).
This document is identical to IEC 62282-3-200.2015 "Fuel cell technologies - Part 3-
200.Stationary fuel cell power systems - Performance test methods".
The following editorial change has been made to this document.
- Change the standard name to "Stationary fuel cell power system - Part 2.
Performance test methods".
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The issuing authority of this document shall not be held
responsible for identifying any or all such patent rights.
This document was proposed by China Electrical Equipment Industry Association.
This document shall be under the jurisdiction of National Technical Committee 342 on
Fuel Cell and Flow Battery of Standardization Administration of China (SAC/TC 342).
Drafting organizations of this document. North China Electric Power University;
Guangzhou Yunqing Testing Technology Co., Ltd.; Shanghai Shenli Technology Co.,
Ltd.; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Nanjing
University; Wuhan University of Technology; Tongji University; Tsinghua University;
China Quality Certification Centre; Machinery Industry Beijing Electrotechnical
Institute of Economic Research; Wuxi Institution of Supervision & Testing on Product
Quality; Shenzhen Institute of Standards and Technology; Shanghai Pearl Hydrogen
Energy Technology Co., Ltd.; Xinyan Hydrogen Energy Technology Co., Ltd.; Weichai
Power Co., Ltd.; Yutong Bus Co., Ltd.; Beijing Long March Tian Min Hi-Tech Co.,
Ltd.; Nekson Power Technology Co., Ltd.; China Automotive Technology and Research
Center Co., Ltd.; No. 712 Research Institute of China Shipbuilding Industry
Corporation; Global Energy Interconnection Research Institute Co., Ltd.; Great Wall
Motor Co., Ltd. Baoding Hydrogen Testing Branch; Weifu High-Technology Group Co.,
Ltd.; China Automotive Engineering Research Institute Co., Ltd.; Haidriver (Qingdao)
Energy Technology Co., Ltd.; Shanghai Hydrogen Propulsion Technology Co., Ltd.;
Tianjin University.
Main drafters of this document. Liu Jianguo, He Wenxiang, Wang Gang, Qi Zhigang,
Yu Hongmei, Hou Ming, Tan Jinting, Ma Tiancai, Pei Pucheng, Zhang Liang, Zhou Bin,
Chen Yao, Wang Yiqun, Dong Hui, Pan Fengwen, Jiang Shangfeng, Jin Yinshi, Hou
Xiangli, Hao Dong, Ye Donghao, Liang Danxi, Duan Zhijie, Zhang Yihuang, Mao
Zhanxin, Xie Jiaping, Chen Pei, Chen Guanyi, Ma Wenchao.
The previous editions of this document and the documents it replaces are as follows.
- It was first issued in 2013 as GB/T 27748.2-2013;
- This is the first revision.
1 Scope
This document covers operational and environmental aspects of the stationary fuel cell
power systems (hereinafter referred to as "power systems") performance.
This document applies to the following test methods.
2 Normative references
The contents of the following documents, through normative references in this text,
constitute indispensable provisions of this document. Among them, for dated references,
only the edition corresponding to that date applies to this document. For undated
references, the latest edition (including all amendments) applies to this document.
ISO 3648 Aviation fuels - Estimation of net specific energy
3 Terms, definitions, operating process and symbols
For the purposes of this document, the following terms and definitions apply.
Mechanical oscillations caused by the environment that affect vibration level readings.
4 Reference conditions
The heating value of fuel is based on the lower heating value (LHV) in principle. Energy
efficiency is expressed as follows.
5 Item of performance test
The performance assessment of the power systems shall be considered from the
following two points of view.
6 Test preparation
An uncertainty analysis shall be performed on the four test items below to indicate the
reliability of the test results and to comply with customer requests. The following test
results shall be analysed to determine the absolute and relative uncertainty. A test shall
be planned so that the reliability of the results can be evaluated for the following items.
7 Measurement instruments and measurement methods
The electric power measurement may be used to calculate the electric energy over the
test duration.
8 Test plan
The maximum permissible variations over the test duration are given in Table 4.
The maximum permissible variations in Table 4 do not apply for start-up and shutdown
testing.
The appropriate duration and frequency of readings are determined according to the
type of power system tested. A sufficient number of measurements and number of
measurement sets shall be established on the basis of requirements for data fluctuations,
stability of average values and the uncertainty analysis of this document.
9 Test methods and computation of test results
The average gaseous fuel input may be described either as the volumetric flow rate of
fuel, qVf0 in m3/s, or as the mass flow rate of fuel, qmf in kg/s.
Vibration produced by the power system shall be measured through the operating
sequence (from start-up, rated load to shutdown) in accordance with 7.3.10 to find the
maximum vibration level.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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