Section 1 General

101. Application

1. The requirements in this Chapter apply to regasification system installed in the unit with Regasification notation specified in Ch 2. For the regasification system installed in the unit without Regasification notation, safety related requirements of this Chapter including facility layout, safety system, process shutdown systems shall be applied.

2. In this Chapter, the boundary between regasification systems and other onboard systems are as the following.

(1) from the flange connected to the outlet flange of the storage tank for liquefied gas piping

(2) to the last outlet flange in the unit connected to the vaporized gas export system

3. The requirements not specified in this Guidance are to be in accordance with relevant requirements in Ch 8, Ch 9, Ch 10.

102. General

1. Regasification system and associated equipment are to be designed to minimize the risk of hazards to personnel and property caused by potential threats to safety, with considering the followings:

(1) Prevent an abnormal condition from causing an upset condition

(2) Prevent an upset condition from causing a release of hydrocarbons

(3) Safely collect and dispose of hydrocarbon gasses and vapors released

(4) Prevent formation of explosive mixtures

(5) Prevent ignition of flammable liquids or gases and vapors released

(6) Limit exposure of personnel to fire hazards

2. Structure designed

that supports regasification systems or forms an integral part of the equipment is to be to a recognized standard. Plans and calculations are to be submitted for the Society

review. Process liquid weights and dynamic loads due to installation motions and other loads, such as wind imposed loads, are to be considered.

103. Codes and standards

1. The requirements not specified in this Guidance are to be in accordance with recognized national or international standards.

2. The following standards may be adequately referred as recognized national or international standards.

104. Definition

1. Blow down system is to system to maintain safety of facility by removing process gas.

2. Suction Drum is the drum to supply LNG stable to HP LNG Pump of liquefied natural gas re- gasification and boil-off gas recovery that occurs during evaporation to return back to the cargo tank acts.

3. Booster Pump the pump to pressurize LNG from suction drum to high pressure and transfer it to vaporizer.

4. LNG Vaporizer is the equipment to vaporize LNG supplied from HP LNG pump to NG.

105. Design conditions

The Regasification systems are to be designed to account for all applicable tional, and test loads, or combination thereof. These include the following:

1. Environmental Conditions

(1) Earthquake

(2) Wind Ice

(3) Ice

(4) Temperature

(5) Current, waves

(6) 1, 10, 50, 100 year storm event, as applicable

2. Operational Condition

(1) Static pressure

(2) Vibration

(3) Transient pressure excursion

(4) Acceleration loads due to movement of installation

(5) Temperature excursion

(6) Fluid static head and properties

(7) Tension

(8) Bending

3. Transportation

4. Installation

5. Commissioning

6. Storage and maintenance

7. Test loads

environmental, opera-

106. Classification survey during construction

1. Plans and data to be submitted

(1) Plans and data for approval

(A) General arrangement of regasification systems

(B) Hazardous area classification plans and ventilation

(C) Piping and instrument diagrams (P&ID)

arrangement

(D) Pressure relief and depressurization vent systems arrangement

(E) Flare/gas release systems arrangements

(F) Spill containment, closed and open drain systems arrangements

(G) Major equipment documentation of regasification systems

(2) Plans and data for reference

(A) Process flow sheets showing major process equipment components, balance, normal pressures and temperatures at the inlet and outlet of

(B) Safety Analysis Function Evaluation Chart

process piping, material each major component

(C) Philosophy of emergency shut down system and process shut down system

(D) Document for stress analysis of the high-pressure pipes, the impact analysis in accordance with the immediate loss of the heating medium, stress analysis according to the piping leak-

age and piping vibration analysis, etc.

2. Certification of equipment

(1) The manufactured equipment and components are to be verified for satisfactory compliance with

the requirements of this Chapter and the requirements of applicable Rules for Classification of Steel Ships.

(2) The tests and surveys for pressure vessels, heat exchangers, pumps, compressors, valves piping of regasification system are to comply with Pt 7, Ch 5, Sec 5 of Rules

Classification of Steel Ships. However, regarding the devices for refrigerants which are

the

and for not

in direct contact with the cargo are to comply with other appliable Rules for the classi- fication of steel ships.

3. Onboard test

(1) Onboard installation tests of all regasification systems are to be verified by the Surveyor and are to be in accordance with the Society agreed test procedures.

(2) Onboard tests and Surveys of regasification systems are to comply with Pt 7, Ch 5, Sec 5 of

Rules for Classification of Steel Ships. However, regarding the devices for refrigerants

which are not in direct contact with the cargo are to comply with other appliable Rules for the classification of steel ships.