NPPSPL LOGO
Contact Us
NPPSPL LOGO

CASE STUDY

Major Faults Accurately Pinpointed on Naval Ship Engine During its Operation with Engine Condition Monitoring System by Neptunus

Background

The maintenance of a naval ship is of paramount importance for ensuring it is ready for combat, carrying out its duties, and fulfilling its mission. Without a proactive approach to its maintenance, it may be unable to perform its tasks effectively and could even become a liability during a battle.

Industry Segment

Defence

Arm Solution

Engine Condition Monitoring

Equipment

Navy Fleet tanker

Objectives

 To test its ability to provide accurate data as well as pinpoint existing and emerging faults in a naval ship engine.

Highlights Of Our Product

Easy To Install And Operate

Pinpoint emerging defects

Remote monitoring of all assets under a single central command,

Increased uptime of engines

Engine
Agnostic

Scientifically Extend Overhaul Intervals with Significant Cost Savings

Evaluation Process

  • 8 MPU Sensors were installed to monitor health of the Port and Stbd main engine & torque of the individual propeller shafts
  • The diagnosis was done in a dual-cylinder setup due to the absence of provision to mount a TDC sensor on the cam gear.
  • Data stored in Vib360: engine condition monitoring system , can be periodically downloaded for trend analysis.
  • The system was installed and monitored by Naval Command for over six months for the evaluation process.

Discovery/Insights From Our System

  •  Some issues highlighted by the system during the trial period are described below

Port Engine

  • Operating efficiency is high at higher loads as compared to lower loads
  • Power loss at low loads is 2.3% and 0.9% at high loads.

Stbd Engine:

  • Significant torsional twist on the crankshaft is observed during low loads and idling (359 RPM), indicating non-uniform power strokes
  • Compression issues on cylinders observed – due to worn piston rings & fuel leakage

Conclusion