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Vessel Performance System

To optimize the energy consumption of ships, the KONGSBERG Vessel Performance System (VPS) addresses engine optimization, speed profile, optimal trim, speed and rpm/pitch – to reduce operating costs. The system is installed and proven successful on a variety of ship types.


KONGSBERG Vessel Performance System
Vessel Performance System enables ship operators to manage their vessels in a more economical and environmentally beneficial way.
A segment controller unit, one of our family of processing units.
Metapower installations showing optical sensors installed on rotating shaft.
Cylinder pressure sensor used for monitoring diesel and gas engines.

The Vessel Performance System provides a set of tools that enable ship operators to manage their vessels in a more economical and environmentally beneficial way, all in compliance with the present safety regulations.

The system can be delivered as an integrated part of the K-Chief 600 automation system, or as a stand-alone system, with independent operator stations. The system offers a user-friendly human-machine interface and a practical selection of process pictures.

System modules

The Vessel Performance System is based on our distributed and modular automation technology and consists of three main modules:

  • Fuel Performance Monitoring
  • Engine Performance Monitoring
  • Energy Management

Fuel Performance Monitoring

This module is designed to give the operator a tool to monitor the fuel consumption. By aiming specifically at the propulsion system, the operator receives invaluable information on the most economical operation. The module provides an overview of the propeller, shaft and main engine. Based on the acquired measurements, a set of performance parameters is calculated, including:

  • Momentary fuel consumption for each engine in kg/hrs
  • Total momentary fuel consumption in kg/hrs
  • Hull efficiency in kg/NM
  • Engine efficiency for each engine in g/kWh
  • Shaft power for each shaft in MW
  • Total shaft power in MW
  • Duration of voyage in hrs
  • Distance travelled in NM
  • Accumulated fuel consumption for each engine in tons
  • Total accumulated fuel consumption in tons
  • Accumulated propeller shaft power for each shaft in MWh
  • Total accumulated propeller shaft power in MWh

The KONGSBERG MetaPower® torque and power measurement system measures torque on the rotating shaft. The system's patented optical technology provides high accuracy and long term stability. Reliable flow (mass) meters, having accuracy better than ±0.25 %, shall be installed to ensure successful consumption measurements of fuel oil and diesel oil. Flow meters can also be supplied, when required.

Benefits of fuel performance monitoring

  • Continuous measurements of fuel consumption and engine power output
  • Monitoring of parameters for improving the vessel's overall performance

Engine Performance Monitoring

This module is designed to give the operator instantaneous status of the engines' operational performance.

By advanced cylinder pressure measurements, subsequent analysis of the combustion process offers diagnosis algorithms based on empirical results and physical models. The module gives engine status and hints based on expert advices. Changing of fuel quality is a challenge, to which the analysis tool provides a detailed guide for adjustments and tuning of the engines.

The emission of CO2, NOX and SOX is calculated based on combustion process analysis, torque measurements, fuel quality and fuel consumption.

The system normally equip the main engine with fixed (on-line) combustion pressure sensors, while a portable (off-line) combustion pressure sensor is employed for each auxiliary engine.

Benefits of engine performance monitoring

  • Reduction of fuel consumption
  • Monitoring of cylinder load
  • Calculation of CO2, NOX and SOX
  • Reduction of maintenance costs and improved planning of maintenance
  • Reduced risk for engine damage

Energy Management

This module is designed to give the operator systematic methods to measure, register and analyze the energy usage of the ship. This approach identifies specific actions that operators can take in order to reduce energy consumption. The primary objective of the methodology is to optimize the use of fuel and minimize environmental effects.

Other objectives are to increase the knowledge regarding energy issues, maintain effective monitoring and reporting of fuel usage and reduce the risk of discontinued service of energy systems.

The Energy Management system can connect to a shore portal. This is a web based on-shore fleet management system that makes ships' operational information available to stakeholders throughout the shore organization. The portal allows for on-shore reporting, monitoring and comparison of sister ships or of an entire fleet.

Benefits of energy management

  • Fuel savings
  • Reduced emissions
  • A complete operational overview
  • Decision support
  • Reliable and clear reports
  • Operational history
  • Voyage tracking
  • Inventory overview
  • Calculation of CO2, NOX and SOX