GB/T 43123-2023 Ships and marine technology—Performance test procedures for high-pressure pumps in LNG fuel gas supply systems (FGSS) for ships (English Version)
Ships and marine technology - Performance test procedures for high-pressure pumps in LNG fuel gas supply systems (FGSS) for ships
1 Scope
This document specifies the test arrangement, test procedures and additional tests for the performance of high-pressure pumps in marine fuel gas supply systems (FGSS) supplying liquefied natural gas (LNG) to ships.
It is applicable to positive displacement pumps (hereinafter "pumps") to assess the mechanical features of the pumps and their auxiliary devices.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1996-1 Acoustics- Description, measurement and assessment of environmental noise- Part 1: Basic quantities and assessment procedures
ISO 10816-6 Mechanical vibration- Evaluation of machine vibration by measurements on non-rotating parts - Part 6: Reciprocating machines with power ratings above 100 kW)
IGC Code International Code for the Construction and Equipment of Ships carrying Liquefied Gases in Bulk (IGC Code)
IGF Code International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF code)
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
3.1
high pressure
maximum working pressure greater than 1.0 MPa
3.2
lubricating oil system
LOS
system to supply lubricant to the pump crank chamber
3.3
seal gas
gas used to separate the pump piston from the driving part and to prevent ice formation
3.4
test temperature
temperature of the fluid during the test, designated by the client
3.5
test pressure
pressure of the fluid during the test, designated by the client
3.6
test flow rate
flow rate of the fluid during the test, designated by the client
3.7
temperature stabilization
state at the conclusion of cool-down, when the temperature variation of the pump is within +2 °C/min
4 Test arrangement
4.1 Test preparation
The client, prior to setting the test parameters, shall review the information provided by the
manufacturer to ensure that the test parameters at a minimum meet the requirements of the manufacturer.
The test arrangement used for the performance test shall supply a test fluid to the inlet of the pump and related devices, at the required test pressure, test temperature and test flow rate without disruption.
In order to prevent industrial accidents during the test, the test arrangement and/or the equipment shall be reviewed and checked in advance.
Figures 1 and 2 show a conceptual diagram of a typical test arrangement.
4.2 Test fluid
As a principle, LNG shall be used as the medium to verify the performance of the pumps.
A medium other than LNG, such as liquefied nitrogen or other fluids colder than the liquefied temperature of LNG, may be used to conduct the test as a reference to the performance of the pumps, in this case, the temperature designed shall be corresponding to the temperature of the medium.
If a fluid other than LNG is used, correction values should be applied as set forth in ISO 6976 (or equivalent standard) based on the actual testing result.
4.3 Test parameters
Pressure, temperature, and flow rate shall be measured as the minimum test parameters. Other additional factors listed in the example report of Annex A, item 3, may be measured.
The test parameters shall be measured by appropriately calibrated measuring instruments.
Measuring sensors shall be installed as close to the pump as practicable.
The test parameters in Annex A, item 3, shall be recorded twice, once every 5 min, during each load step.
Standard
GB/T 43123-2023 Ships and marine technology—Performance test procedures for high-pressure pumps in LNG fuel gas supply systems (FGSS) for ships (English Version)
Standard No.
GB/T 43123-2023
Status
valid
Language
English
File Format
PDF
Word Count
8000 words
Price(USD)
240.0
Implemented on
2024-1-1
Delivery
via email in 1~3 business day
Detail of GB/T 43123-2023
Standard No.
GB/T 43123-2023
English Name
Ships and marine technology—Performance test procedures for high-pressure pumps in LNG fuel gas supply systems (FGSS) for ships
Ships and marine technology - Performance test procedures for high-pressure pumps in LNG fuel gas supply systems (FGSS) for ships
1 Scope
This document specifies the test arrangement, test procedures and additional tests for the performance of high-pressure pumps in marine fuel gas supply systems (FGSS) supplying liquefied natural gas (LNG) to ships.
It is applicable to positive displacement pumps (hereinafter "pumps") to assess the mechanical features of the pumps and their auxiliary devices.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1996-1 Acoustics- Description, measurement and assessment of environmental noise- Part 1: Basic quantities and assessment procedures
ISO 10816-6 Mechanical vibration- Evaluation of machine vibration by measurements on non-rotating parts - Part 6: Reciprocating machines with power ratings above 100 kW)
IGC Code International Code for the Construction and Equipment of Ships carrying Liquefied Gases in Bulk (IGC Code)
IGF Code International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF code)
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
3.1
high pressure
maximum working pressure greater than 1.0 MPa
3.2
lubricating oil system
LOS
system to supply lubricant to the pump crank chamber
3.3
seal gas
gas used to separate the pump piston from the driving part and to prevent ice formation
3.4
test temperature
temperature of the fluid during the test, designated by the client
3.5
test pressure
pressure of the fluid during the test, designated by the client
3.6
test flow rate
flow rate of the fluid during the test, designated by the client
3.7
temperature stabilization
state at the conclusion of cool-down, when the temperature variation of the pump is within +2 °C/min
4 Test arrangement
4.1 Test preparation
The client, prior to setting the test parameters, shall review the information provided by the
manufacturer to ensure that the test parameters at a minimum meet the requirements of the manufacturer.
The test arrangement used for the performance test shall supply a test fluid to the inlet of the pump and related devices, at the required test pressure, test temperature and test flow rate without disruption.
In order to prevent industrial accidents during the test, the test arrangement and/or the equipment shall be reviewed and checked in advance.
Figures 1 and 2 show a conceptual diagram of a typical test arrangement.
4.2 Test fluid
As a principle, LNG shall be used as the medium to verify the performance of the pumps.
A medium other than LNG, such as liquefied nitrogen or other fluids colder than the liquefied temperature of LNG, may be used to conduct the test as a reference to the performance of the pumps, in this case, the temperature designed shall be corresponding to the temperature of the medium.
If a fluid other than LNG is used, correction values should be applied as set forth in ISO 6976 (or equivalent standard) based on the actual testing result.
4.3 Test parameters
Pressure, temperature, and flow rate shall be measured as the minimum test parameters. Other additional factors listed in the example report of Annex A, item 3, may be measured.
The test parameters shall be measured by appropriately calibrated measuring instruments.
Measuring sensors shall be installed as close to the pump as practicable.
The test parameters in Annex A, item 3, shall be recorded twice, once every 5 min, during each load step.
