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GB/T 42855-2023: Technical requirements of fuelling protocols for hydrogen fuel cell vehicles Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 42855-2023: Technical requirements of fuelling protocols for hydrogen fuel cell vehicles---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/GBT42855-2023GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 27.180 CCS F 19 Technical Requirements of Fueling Protocols for Hydrogen Fuel Cell Vehicles Issued on. AUGUST 6, 2023 Implemented on. DECEMBER 1, 2023 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 4 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 5 4 Basic Requirements... 7 5 General Requirements for Fueling Protocol... 10 6 Fueling Boundary Conditions... 10 6.4 Fueling Mode... 11 7 Fueling Process... 11 8 Fueling Process Control... 13 Appendix A (informative) Schematic Diagram of Hydrogen Fueling Process... 17 Appendix B (informative) Fueling Process Control Flow... 19 Appendix C (informative) Recommended Values of Pressure Ramp Rate Based on Pressure Control... 26 Appendix D (informative) Recommended Values of Average Flow Rate Based on Flow Control... 391 ScopeThis document specifies the basic requirements, general requirements, fueling boundary conditions, fueling process and fueling process control requirements for high-pressure hydrogen fueling protocols for hydrogen fuel cell vehicles. This document is applicable to the fueling protocols for the hydrogen fueling facilities of hydrogen fuel cell vehicles. The fueling protocols for the hydrogen fueling facilities of hydrogen internal combustion engine vehicles, hydrogen energy ships, hydrogen energy tramcars, hydrogen energy aircrafts, hydrogen energy engineering vehicles, hydrogen energy power generation devices and hydrogen transportation vehicles, etc. may also take this document as a reference.2 Normative ReferencesThe contents of the following documents constitute indispensable clauses of this document through the normative references in this text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 31138 Hydrogen Dispensers3 Terms and DefinitionsThe terms and definitions defined in GB/T 31138, and the following terms and definitions are applicable to this document. 3.1 fueling protocol Fueling protocol refers to the operating boundary conditions and fueling strategies followed by the hydrogen fueling facilities for fueling hydrogen fuel cell vehicles. 3.2 mass capacity of onboard hydrogen storage system Mass capacity of onboard hydrogen storage system refers to the total mass of hydrogen stored by the onboard hydrogen storage system when the hydrogen is at 15 C and under the nominal working pressure. 3.3 dispenser pressure Dispenser pressure refers to the hydrogen pressure in the hydrogen fueling pipeline within 1 m upstream of the hydrogen dispenser breakaway valve. 3.4 target pressure Target pressure refers to the hydrogen pressure expected from the onboard hydrogen storage system at the end of fueling. 3.5 fuel delivery temperature Fuel delivery temperature refers to the temperature of hydrogen in the hydrogen fueling pipeline within 1 m upstream of the hydrogen dispenser breakaway valve. 3.6 pre-cooling temperature of hydrogen Pre-cooling temperature of hydrogen refers to the temperature of hydrogen in the hydrogen dispenser after passing through the pre-cooling heat exchanger.4 Basic Requirements4.1 Composition of Fueling Protocol The fueling protocol shall include requirements for fueling performance target, boundary conditions, fueling method, process control, fueling speed and target pressure, etc. 4.2 General Rules 4.2.1 The fueling protocol shall be formulated in combination with the hydrogen fueling method and fueling performance target. In accordance with the parameters, such as. 4.3 Fueling Speed The fueling speed shall satisfy the requirement that the onboard hydrogen storage cylinders do not exceed the maximum allowable working temperature under the following conditions. 4.4 Target Pressure The target pressure shall satisfy the requirement that the onboard hydrogen storage system does not exceed the maximum working pressure under the following conditions. 4.5 Classification of Fueling Levels 4.5.2 Pressure rating 4.5.3 Fuel delivery temperature level The pre-cooling temperature level shall be determined in accordance with the hydrogen temperature range of the hydrogen fueling station. Hydrogen dispensers with the same pressure rating at the hydrogen fueling station should use the same fuel delivery temperature level. 4.5.4 Category of on-board hydrogen storage system capacity The category of on-board hydrogen storage system capacity is shown in Table 3.5 General Requirements for Fueling ProtocolThe fueling protocol shall satisfy the safe service conditions of the on-board hydrogen storage system and shall ensure the on-board hydrogen storage system has the maximum state of charge under the condition that the maximum allowable working temperature and maximum working pressure are not exceeded.6 Fueling Boundary Conditions6.1 Basic Requirements The fueling boundary conditions shall include fueling pressure rating, fuel delivery temperature level, onboard hydrogen storage system capacity, hydrogen storage cylinder type, as well as the ranges of initial fueling pressure, ambient temperature and maximum hydrogen fueling flow rate, etc., among which, the initial fueling pressure, ambient temperature and fuel delivery temperature shall comply with the requirements of GB/T 31138. 6.3 Pipeline Pressure Loss When the hydrogen flow rate is 60 g/s, the hydrogen pressure loss between the hydrogen dispenser and the onboard hydrogen storage cylinder shall be 3 MPa ~ 25 MPa. 6.4 Fueling Mode Under the mode of fueling with communication, it shall be possible to obtain the following information. capacity of onboard hydrogen storage system, type of hydrogen storage cylinder, pipeline pressure loss, real-time temperature of hydrogen in onboard hydrogen storage system, real-time pressure of onboard hydrogen storage system, maximum allowable fueling flow rate and switching status of gas inlet globe valve of each hydrogen storage cylinder.7 Fueling ProcessNOTE. the schematic diagram of the hydrogen fueling process is shown in Appendix A. 7.1 Fueling with Non-communication 7.1.1 Fueling procedures The fueling with non-communication includes fueling startup, fueling table selection, main fueling process and fueling process detection, etc. The fueling startup shall include initial air 7.1.2 Shutdown of fueling The pressure of the hydrogen dispenser shall not be greater than the target pressure, ore the pressure of the hydrogen dispenser shall be set in accordance with the pressure difference between the hydrogen dispenser and the onboard hydrogen storage system, so as to ensure that the pressure of the onboard hydrogen storage system is not greater than the target pressure at the end of fueling. 7.2 Fueling with Communication 7.2.1 Fueling process The communication fueling process includes communication establishment, fueling startup, fueling table selection, main fueling process, fueling process detection, fuel delivery temperature level reduction and communication disconnected, etc. 7.2.2 Communication establishment Before the hydrogen dispenser starts fueling, it shall be confirmed that effective communication has been established with the onboard hydrogen storage system, and the following conditions are satisfied. 7.2.3 Communication disconnection When the hydrogen dispenser cannot obtain the data signal of the onboard hydrogen storage system or does not comply with the requirements specified in 7.2.2, if it satisfies the conditions of fueling with non-communication, the fueling shall be continued in accordance with the procedures of fueling with non-communication, and shall comply with the following requirements; otherwise, the hydrogen dispenser shall stop fueling within 3 s. 7.2.4 Shutdown of fueling The hydrogen dispenser shall adopt the real-time temperature of hydrogen in the onboard hydrogen storage system,8 Fueling Process Control8.1 Basic Requirements 8.1.1 Ambient temperature The accuracy and installation position of the temperature sensor for measuring ambient temperature shall comply with the requirements specified in GB/T 31138.During the fueling, the ambient temperature shall be not lower than 40 C and not greater than 50 C. If this temperature range is exceeded, it shall be handled in accordance with the ambient temperature over-limit requirements specified in GB/T 31138. 8.1.3 Pressure measurement of hydrogen dispenser The sampling frequency of pressure of the hydrogen dispenser shall not be less than 1 Hz, the accuracy and installation position of the pressure sensor for measuring the pressure of the hydrogen dispenser shall comply with the requirements specified in GB/T 31138. 8.1.7 Air tightness test For H35 main fueling process, at least one initial air tightness test shall be conducted. For H70 main fueling process, when the pressure of the hydrogen dispenser reaches 30 MPa and 60 MPa, the air tightness test on the fueling process shall be respectively conducted and shall comply with the requirements specified in GB/T 31138. 8.1.8 Determination of fueling parameters The determination of the fueling parameters shall comply with the following requirements. 8.2 Pressure Control Method Within the main fueling time range, the pressure of the hydrogen dispenser shall increase in accordance with the average pressure ramp rate of the target. Except for the first 15 s, within the effective fueling time of the main fueling process, if the pressure of the hydrogen dispenser is higher than the upper pressure limit or lower than the lower pressure limit of the hydrogen dispenser, hydrogen fueling shall be stopped within 3 s. 8.3 Flow Control Method Within the effective fueling time of the main fueling process, the average hydrogen fueling flow rate of the hydrogen dispenser shall not exceed 5% of the average flow rate of the target and shall comply with the following requirements. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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