Case Studies

Marine Fuel Monitoring Case Study

Object: Give the vessel owner full fuel transparency by measuring real consumption of each engine and comparing it with actual fuel volume in the tank.

Project: Fuel monitoring solution for a service vessel in Indonesia: main engine, auxiliary engine / genset and fuel tank.

Note: calculation is a realistic marketing example based on the provided marine materials and onboard installation photos. Actual savings depend on vessel operation, fuel price and route profile.

Challenge & Eurosens Solution

Full fuel balance for every voyage

Before monitoring

  • Fuel reports were based mainly on manual records and approximate tank checks.
  • The owner could not separate main engine consumption from
    auxiliary engine / genset consumption.
  • Unexplained fuel differences appeared after some operations.
  • It was difficult to confirm remaining fuel and real voyage cost.

Installed solution

  • Fuel flowmeter on the main diesel engine.
  • Fuel flowmeter on the auxiliary engine / genset.
  • Eurosens Dominator fuel level sensor in the tank.
  • Data transfer to GPS tracker and software platform
    for remote monitoring.

 

Fuel filled -> real engine consumption -> remaining tank volume

The owner receives a transparent fuel balance instead of assumptions.

 

Example Voyage Result

How the owner saved fuel and money

Assumptions for one marine operation

Operation time: 52 hours | Fuel: marine diesel | Fuel price: 0.95 USD/L

 

Parameter Before monitoring After Eurosens Improvement
Main engine fuel use ~3,500 L (estimated) 3,180 L (measured) 320 L
Auxiliary engine / genset ~780 L (estimated) 690 L (measured) 90 L
Unexplained fuel difference ~300 L ~40 L 260 L
Total fuel accounted ~4,580 L ~3,910 L 670 L

 

Estimated saving

USD 636

per voyage

Fuel controlled / saved

670 L

670 L × 0.95 USD/L

 

Monthly saving estimate: 8,040 L / USD 7,632 (12 voyages/month)

 

Fuel balance comparison

 

What created the saving?

The sensors did not mechanically reduce consumption. The saving came from operational control:
reduced unnecessary auxiliary engine operation, fewer idle hours, elimination of reporting errors, and
detection of unexplained fuel differences.

Onboard Installation & Result

Indonesia marine project photos

 

Flowmeter installation – engine room

Fuel lines and onboard mounting

 

Direct flowmeter on fuel line

Field visit in Indonesia

 

Result for the vessel owner

  • Separate real consumption of the main engine and auxiliary engine / genset.
  • Actual fuel volume in the tank with refueling and possible drain events.
  • Fuel balance after every voyage: filled fuel, consumed fuel and remaining fuel.
  • Remote reports for technical, operational and financial control.

 

Eurosens Delta / Direct + Eurosens Dominator

Full fuel transparency for marine operations – from engine consumption to tank level.

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