​​Jetty 1/2/3 Flashcards

1
Q

What is the LNG loading facility comprised of?

A

3 stand alone LNG berthing docks

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2
Q

What is the designed LNG loading ship rate?

A

12,000 M3/Hr 52,835 GPM

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3
Q

Explain the jetty arms configuration at each dock.

A

2 LNG loading arms
1 vapor
1 Hybird

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4
Q

What can the Hybrid arm function as?

A

Loadding or Vapor Arm

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5
Q

What is the primary function of the LNG berth?

A

Export LNG to tanker

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6
Q

Each berth includes:

A

Loading Platform, 6 mooring dolphins, 4 breasting dolphins and walkways

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7
Q

As the LNG Tanker continues to cool, and nitrogen continues to be displaced, once the displaced vapor nitrogen/inert gas content is less than 20% where is the vapor routed?

A

Bog Compressors

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8
Q

How are the arm operation controlled?

A

Radioremote controller or local control panel

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9
Q

During ship loading mode, what is the LNG ship pressure?

A

36 PSIG (Design PSI)

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10
Q

Before LNG can be loaded at the design flow rate, a small stream of LNG flows through the bypass of the HIC valves, located near the loading arm, to?

A

Cool down the loading arms & Ships piping

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11
Q

What is the purpose of having a small stream of LNG always circulating through loading lines?

A

To keep cold conditions in the piping

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12
Q

What is the minimum required LNG circulation rate through the ship loading lines?

A

holding 900 GPM
Loading 660 GPM

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13
Q

LNG is loaded through two loading headers full of liquid and at the same temperature as the tank liquid, what size piping are the loading headers?

A

36”

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14
Q

LNG from the LNG Tanks will be used to gas-up (and then cool down) the warm ship. Where will the provision for gas pressure isolation be located?

A

Jetty 2 only

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15
Q

When the displaced vapors from the LNG Carrier exceed 20% nitrogen/inert gases, the system is lined up such that the displaced ship vapors are sent to?

A

Marine Flare

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16
Q

As the LNG Carrier continues to cool and nitrogen continues to be displaced, once the displaced vapor nitrogen/inert gas content is less than 20%, the system is lined up such that the displaced ship vapors are sent to?

A

Bog Compressors

17
Q

ESD 1

A

jetties isolation

18
Q

ESD 2

A

Jetties Isolation and perk release

19
Q

Perk Release

A

seperation of arms from the ship caused by arms moving outside of designed spec

20
Q

SIS-1040:

A

ESD Level 0
Local or Control Room ESD
Activation of ESD-1 from Jetty 1 or 2
LO-LO LNG Tank Level
LO-LO LNG Tank Pressure

21
Q

Alarms

A

Pressure and Temp Indicators detect pipe leakage on outter pipe.
Fiberoptic leak detection system (DTS) is installed on the PIP system:
Alarms when:
Outer pipe drops below ambient temp by 30F.
Outer pipe temp decreases by 2F/min over a period of 5 min.

22
Q

Note:

A

PIP runs to loading arms. Inner pipe 36” outer pipe 42”
Maintained under a vacuum @ 6 to 12 inH2O.