Engine condition monitoring

Kongsberg Maritime Sensor Applications

ENGINE CONDITION MONITORING

NK-200

THE FULL PICTURE

THE MIP NK-200 SYSTEM MIP is an abbreviation for Mean Indicated Pressure, which is a calculated average cylinder pressure throughout one complete engine cycle. MIP is a parameter representation of the actual work created by the combustion inside the cylinder. To be able to calculate the MIP accurately the scavenging air pressure (PScav) needs to be measured. PScav is the pressure of the fresh air flowing into the engine representing the current load of the engine.

Monitoring the cylinder pressure allows evaluating: Ignition properties of the fuel, Injection timing of the fuel and Condition of the engine parts influencing the combustion properties (fuel nozzles, piston rings, etc.)

Why? NK-200 MIP contributes to: Reduced fuel consumption Reduced maintenance costs and improved planning of maintenance Reduced risk for engine damage Cylinder load balance inspection Optimisation of engine-running conditions Documentation of engine condition to class societies and insurance companies

Saving costs at every stroke!

EXAMPLE: A one degree to advanced fuel injection timing may increase the fuel consumption up to 2%. A 10 000 kW engine running at 90% load uses approximately 1.5 tons of fuel per hour. This additional fuel consumption alone accounts for more than USD 35 000 per year.

For overall engine safety and fuel economy SYSTEM LAYOUT

CONTROL ROOM PC

LAP-TOP COMPUTER

COLOUR PRINTER

AUTOMATION SYSTEM C20

SHIP-SHORE COMMUNICATION

HUB

ETHERNET NETWORK

ENGINE ROOM ENGINE SIGNAL PROCESSING UNIT NK-210

ESPU

FUEL PRESSURE SENSOR GT-33 TO BE MOVED FROM CYLINDER TO CYLINDER GT-25

CYLINDER PRESSURE SENSOR GT-25 TO BE MOVED FROM CYLINDER TO CYLINDER

GT-33

GT-300 RPM PICK-UP GF-1 GF-1

SCAVENGING AIR PRESSURE SENSOR GT-300

Main components are: Cylinder Pressure Sensor Scavenging Air Pressure Sensor Fuel Pressure Sensor on slow-speed engines only RPM Pickup Engine Signal Processing Unit BASELINE Software

The 5th generation of MIP calculators, NK-200, was launched in 2001 replacing the NK-100 which had been in service since 1994. Kongsberg Maritime has over the years been an important contributor to modern condition monitoring of diesel engines.

BASELINE Software NK-200 is equipped with BASELINE software as standard reducing the search time for fault indications of cylinder curves. The operator is able to detect potential engine damages or indications of wrong adjustments on the engine at a glance. BASELINE is a collection of 9 data comparison curves which together give a very clear indication of the current condition of every cylinder of the engine. Measured data and model curve data are all corrected to ISO environmental temperature of 25°C minimizing discrepancies between temperature at model curve and actual data. The NK-200 MIP system is delivered with a separate scavenging air pressure sensor as a standard to ensure that all cylinder pressure measurements are performed during stable engine load conditions. A unique feature of the system is that the scavenging air pressure is measured simultaneously and presented together with each cylinder measurement.

Installed on more than 1500 vessels Many ship owners use the NK-200 MIP system as standard on new vessels and are regular customers of Kongsberg Maritime since the beginning of the 1970's.

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YOUR SENSOR SUPPLIER Kongsberg Maritime has through the brands AUTRONICA and KONGSBERG been in the marine sensor market for more than 40 years. Close relations with customers, tailor made products and worldwide service makes Kongsberg Maritime an attractive sensor and spare part supplier. During this extensive period of operation we have created a range of sensors and accessories that have been designed especially for ship and offshore use. Our product range consists of more than 2000 different sensors and our equipment is installed onboard more than 15.000 vessels.

SENSOR SPARE PARTS Kongsberg Maritime has designed a new sensor spare part supply program. Through this initiative we offer our customers the following commitments and services; World wide availability throughout our sales network 24 hours response time on request Immediate delivery of sensors and spare parts which are on stock to any port or destination around the world ISO-9001 certified production Engine manufacturer approved design Class approval by all major classification societies

AROUND THE WORLD You can find Kongsberg Maritime in 14 countries around the World and more than 2000 employees are ready to serve our customers' needs.

Canada British Columbia

Canada Nova Scotia

Canada Newfoundland

Germany Hamburg

Norway Trondheim Kongsberg Horten

Sweden Gothenburg

USA Lynnwood

South Korea Busan

China Shanghai USA Houston USA Saint Rose USA West Mystic

UK Waterlooville Wick Aberdeen

Nederlands Spijkenisse

Kongsberg Maritime AS Haakon VIIs gate 4 NO-7005 Trondheim NORWAY Telephone +47 73 58 10 00 Telefax +47 73 58 10 75 [email protected] www.km.kongsberg.com/sensors

Italy Rome

Singapore Singapore

www.kongsberg.com

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Printing: Skipnes ©Kongsberg Maritime 2007

www.km.kongsberg.com/sensors [email protected] Telephone +47 73 58 10 00 Telefax +47 73 58 10 75

Photo: JPD/In-house

We are innovative We are always incorporating the latest technologies, in order to increase value for our customers. We look beyond conventional approaches and established methods to find new reliable solutions. Our competence is used to push back boundaries and to create new solutions.

Design: Jess ProfilDesign

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