The electric heating circulation and insulation system for ships is mainly used for the temperature control of fuel oil and main engine jacket water, ensuring the normal operation of equipment in low - temperature environments and optimizing energy efficiency. This system is widely used in LNG carriers, polar ships, oil tankers, and ships operating in high - latitude areas.

The energy - saving principle of the electric heating circulation and insulation system is that during the long - term mooring of the ship, the system is used to provide insulation for the fuel oil tank and jacket water system, eliminating the need for traditional boiler ignition and steam - based insulation, which would otherwise consume fuel oil.

Energy - saving advantages (compared with traditional steam heating)

Index

Electric Heating Circulation System

Steam Heating System

Energy efficiency

Over 90%

60% - 70% (due to significant heat loss)

Control accuracy

±1℃

±5℃

Maintenance cost

Low (no boiler corrosion issues)

High (regular inspection of piping required)

Carbon emissions

Zero direct emissions (if powered by green electricity)

Dependent on fuel - oil - fired boilers, generating CO₂