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BS EN ISO 20257-2:2021

BS EN ISO 20257-2:2021

$189.07

Installation and equipment for liquefied natural gas. Design of floating LNG installations – Specific FSRU issues

Published By Publication Date Number of Pages
BSI 2021 50
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The objective of ISO 20257 is to provide functional guidelines and recommend practices for the design of floating liquefied natural gas (LNG) installations in order to have a safe and environmentally acceptable design and operation of floating LNG installations. ISO 20257 gives functional guidelines for the design and operation of all floating LNG installations including those for the liquefaction, storage, vaporisation, transfer and handling of LNG.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
8 Foreword
9 1 Scope
2 Normative references
10 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
11 4 Basis of design
4.1 General description of FSRU
13 4.2 Main design criteria for process facilities
14 4.3 Reliability, availability and maintainability of LNG floating installation
4.4 Specific requirements for FSRU operating as LNG carrier
4.5 Specific FSRU studies
4.5.1 General
4.5.2 Environmental impact of seawater intake and discharge study
15 4.5.3 Recirculation study
4.5.4 Scour protection study
5 Specific health, safety and environmental issues
5.1 General
5.2 Environmental considerations related to water heating and cooling issues
16 5.3 Safety considerations
5.3.1 General requirements
5.3.2 Layout constrains
17 5.3.3 Layout constraints with respect to surroundings
18 5.3.4 Layout constraints with respect to facility arrangement
19 5.3.5 Risk prevention measures
24 6 Mooring and stationkeeping
7 Hull design
25 8 LNG storage
8.1 Specific requirements for cargo tank pressure management
8.2 Specific requirements for LNGC overpressure protection
8.3 Rollover risk
9 Transfer systems
9.1 General
9.2 Send-out natural gas: NG gas transfer requirements
9.2.1 Functional requirements
26 9.2.2 Transfer systems design
27 9.2.3 Emergency disconnection
9.2.4 Operating envelope
28 9.3 LNG sampling
29 10 BOG handling and recovery
10.1 General
10.2 LNG tank design pressure flexibility
10.3 Specific requirements for recondenser
30 10.4 Specific requirements for gas compressors
10.4.1 General
10.4.2 Specific functional requirements for LD compressors
10.4.3 Specific functional requirements for HD compressors
10.4.4 Specific functional requirements for HP or MSO compressors
31 11 Regasification equipment requirements
11.1 LNG pumps
11.1.1 General
11.1.2 Functional requirements
11.1.3 Materials selection
11.1.4 In-tank LNG pump
11.1.5 HP LNG pump
32 11.2 LNG vaporization system
11.2.1 Functional requirements
11.2.2 Vaporization type
33 11.2.3 Materials selection
11.2.4 Protective coating
11.2.5 Marine growth
11.2.6 Stability/vibration
11.2.7 Safety relief valves
34 11.3 Trim heater
11.4 Venting from regasification systems
12 Gas send out
12.1 High integrity pressure protection system
12.1.1 Send-out pressure control
35 12.1.2 Typical description of HIPPS
36 12.1.3 Design requirements for HIPPS
37 12.2 Send-out gas metering
12.2.1 Uses of send-out gas metering
12.2.2 Measurement devices type
12.2.3 Accuracy
12.2.4 External influences
38 12.2.5 Gas chromatograph – Gas analyser
12.2.6 Sparing philosophy
12.2.7 Z-configuration
12.3 Odorization systems
13 Utilities
13.1 General
13.2 Cooling and heating medium
13.2.1 Cooling medium
39 13.2.2 Heating medium
13.2.3 Nitrogen system
13.2.4 Fuel gas
40 14 Process and safety control systems
14.1 General requirements
14.2 Interfaces between FSRU and gas export connection
14.3 Communication onshore/offshore
15 Security management
16 Commissioning
41 17 Inspection and maintenance
17.1 General requirements
17.2 Cargo tank
17.3 In-tank LNG pump
17.4 Regasification equipment
17.4.1 HP LNG pump
17.4.2 LNG vaporizer
17.5 Recondenser
17.6 Handling/Crane equipment
42 18 Preservation and corrosion protection
19 Conversion of existing unit to floating LNG installations
43 Annex A (informative) Regasification system description
48 Bibliography

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BS EN ISO 20257-2:2021
$189.07