What is the function of an Emergency Shutdown (ESD) system on gas carriers?
Direct Answer
Option D: Stop pumps/compressors and close ESD manifold valves in emergency
The Emergency Shutdown (ESD) system is a critical safety interlock mandated by the IGC Code designed to swiftly halt potential cargo release. Activating the ESD stops cargo pumps and compressors while pneumatically closing manifold and tank liquid/vapor valves to isolate the vessel from shore facilities.
All Options
Detailed Explanation & Context
The Emergency Shutdown (ESD) system is a critical safety interlock mandated by the IGC Code designed to swiftly halt potential cargo release. Activating the ESD stops cargo pumps and compressors while pneumatically closing manifold and tank liquid/vapor valves to isolate the vessel from shore facilities.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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