useful pics

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                                   .::ManindarKumar::.

          .::"I have no money, no resources, no hopes. I am the happiest man alive !"::.

       

useful notes for all marine engineering people across the world.

http://marineinsight.com/news/featured/converting-seawater-to-freshwater-on-a-ship-fresh-water-generator-explained/

 

http://marineinsight.com/marine/what-is-ballast-water-management-plan/

 

http://marineinsight.com/tech/proceduresmaintenance/everything-you-ever-wanted-to-know-about-crankcase-inspection-on-a-ship/

 

http://marineinsight.com/tech/permanent-magnet-moving-coil-instrument-pmmc-working-and-application-on-ship/

 

http://marineinsight.com/tech/preferential-trips-on-ship-construction-and-working/

 

http://marineinsight.com/tech/marine-electrical/single-phasing-in-electrical-motors-causes-effects-and-protection-methods/

 

http://marineinsight.com/tech/high-speed-centrifuge-on-ship-construction-and-working/

 

http://marineinsight.com/tech/auxiliary-machinery/bow-thrusters-construction-and-working/

 

http://marineinsight.com/tech/what-are-breaking-in-and-running-in-in-marine-diesel-engines/

 

http://marineinsight.com/tech/intelligent-engines-the-new-generation-machines/

 

http://marineinsight.com/marine/an-overview-of-common-rail-system-in-marine-engines/

 

http://marineinsight.com/tech/the-most-popular-marine-propulsion-engines-in-the-shipping-industry/

 

http://marineinsight.com/tech/what-are-breaking-in-and-running-in-in-marine-diesel-engines/

 

http://marineinsight.com/tech/marine-electrical/what-is-azipod-propulsion-system-on-ship/

 

http://marineinsight.com/marine/how-is-power-generated-and-supplied-on-a-ship/

 

http://marineinsight.com/marine/how-to-adjust-the-load-sensors-on-the-mooring-winches/

 

http://marineinsight.com/misc/maritime-law/what-is-ship-to-ship-transfer-sts-and-requirements-to-carry-out-the-same/

 

http://marineinsight.com/marine/a-comprehensive-list-of-different-types-of-sea-waves/

 

http://marineinsight.com/marine/a-comprehensive-list-fuel-diesel-and-lube-oil-tanks-on-a-ship/

 

http://marineinsight.com/tech/auxiliary-machinery/boiler-mountings-a-comprehensive-list/

 

http://marineinsight.com/tech/auxiliary-machinery/understanding-diesel-engine-performance/

 

http://marineinsight.com/tech/how-is-marine-engine-repair-done-on-board-a-ship/

 

http://marineinsight.com/careers-2/what-is-marine-engineering/

 

http://marineinsight.com/marine/the-most-important-engine-room-documents-a-ship-cannot-sail-without-3/

 

http://marineinsight.com/careers-2/duties-of-electrical-officer-on-board-ship/

 

http://marineinsight.com/news/featured/converting-seawater-to-freshwater-on-a-ship-fresh-water-generator-explained/

 

http://marineinsight.com/news/featured/boiler-operation-made-easy-procedure-for-starting-and-stopping-a-boiler/

 

http://marineinsight.com/tech/proceduresmaintenance/air-compressor-on-a-ship-checks-for-starting-and-stopping-a-compressor/

 

http://marineinsight.com/news/featured/blow-down-procedure-for-marine-boilers/

 

http://marineinsight.com/marine/life-at-sea/challenges-of-a-job-at-sea-difficulties-of-a-shipping-job/

 

http://marineinsight.com/tech/what-is-local-or-emergency-manoeuvring-on-ship/

 

http://www.automotive-magazine.com/2009/12/16/my-what-big-pistons-you-have/

 

http://marineinsight.com/tech/general-overview-of-types-of-pumps-on-ship/

 

http://marineinsight.com/news/headline/viscosity-meter-and-viscosity-controller-used-on-ships/

 

http://marineinsight.com/tech/hydraulic-starting-of-emergency-generator/

 

http://marineinsight.com/tech/procedure-for-starting-and-stopping-generators-on-a-ship/

 

http://marineinsight.com/news/featured/how-to-synchronize-generators-on-a-ship/

 

http://marineinsight.com/marine/a-woman-chief-engineer-from-brazil-describes-her-interesting-life/

 

http://marineinsight.com/tech/proceduresmaintenance/bunkering-is-dangerous-procedure-for-bunkering-operation-on-a-ship/

 

http://marineinsight.com/category/tech/main-engine/

 

http://marineinsight.com/tech/everything-you-ever-wanted-to-know-about-scavenge-fires/

 

http://marineinsight.com/tech/main-engine/what-is-turbocharger-surging/

 

http://marineinsight.com/tech/proceduresmaintenance/sounding-and-different-methods-of-taking-sounding-on-a-ship/

 

http://marineinsight.com/marine/everything-you-ever-wanted-to-know-about-container-refrigeration-unit/

 

http://marineinsight.com/tech/proceduresmaintenance/safety-features-and-maintenance-procedure-for-air-compressor-on-a-ship/

 

http://marineinsight.com/tech/piston-skirt-piston-rod-and-trunk-piston/

 

http://marineinsight.com/tech/duties-of-a-4th-engineer-on-a-ship/

 

http://marineinsight.com/tech/proceduresmaintenance/procedure-for-boiler-gauge-glass-maintenance-on-a-ship/

 

http://marineinsight.com/tech/auxiliary-machinery/the-basics-of-air-compressor-on-a-ship/

 

http://marineinsight.com/news/featured/efficiency-of-air-compressor-and-uses-of-compressed-air-on-a-ship/

 

http://marineinsight.com/tech/auxiliary-machinery/different-parts-of-a-marine-air-compressor-used-on-a-ship/

 

http://marineinsight.com/tech/proceduresmaintenance/procedure-for-starting-breathing-air-compressor-on-a-ship/

 

http://marineinsight.com/tech/proceduresmaintenance/safety-features-and-maintenance-procedure-for-air-compressor-on-a-ship/

 

..............

                                   .::ManindarKumar::.

          .::"I have no money, no resources, no hopes. I am the happiest man alive !"::.

       

useful information for all the upcoming marine engineers.

http://marineinsight.com/tech/piston-skirt-piston-rod-and-trunk-piston/

http://marineinsight.com/tech/duties-of-a-4th-engineer-on-a-ship/

http://marineinsight.com/tech/proceduresmaintenance/bunkering-is-dangerous-procedure-for-bunkering-operation-on-a-ship/

http://marineinsight.com/marine/a-woman-chief-engineer-from-brazil-describes-her-interesting-life/

http://marineinsight.com/news/featured/how-to-synchronize-generators-on-a-ship/

http://marineinsight.com/tech/procedure-for-starting-and-stopping-generators-on-a-ship/

http://marineinsight.com/tech/hydraulic-starting-of-emergency-generator/

http://marineinsight.com/news/featured/boiler-operation-made-easy-procedure-for-starting-and-stopping-a-boiler/

..............

                                   .::ManindarKumar::.

          .::"I have no money, no resources, no hopes. I am the happiest man alive !"::.

       

Why only 2 stroke engine rather than 4 stroke engine ?

Why 2-stroke Engines are Used More commonly than 4-stroke on Ships?

When a ship is being constructed in a shipyard, the most important machinery that is to be selected is the main propulsion machinery. Both 2 stroke and 4 stroke engines are widely available in the market but for large ocean going merchant vessel, a 2 stroke engine is more commonly used as main engine and has much better market.

Even with wide variety of advantages that 4 stroke engine offers like compact size of plant, much more RPM or speed etc, a 2 stroke engine outshines with few but vital advantages.

Some of the important reasons why 2 stroke engines are more popular than 4 stroke engines as main propulsion engine on ships

Fuel Selection: The fuel prices have gone sky high and better grade fuel is adding higher costs to vessel operation. A two stroke engine can burn low grade fuel oil and hence reduce running cost of the ship.

Efficiency: The thermal and engine efficiency of 2 stroke engine is much better than that of a 4 stroke engine.

Power: Most of the 2 stroke engines are now large stroke engines that produce more power. Hence they have high power to weight ration as compare to 4 stroke engine.

More Cargo: Ship can carry more weight and hence more cargo with 2 stroke engines because of high power to weight ratio.

Reliability: Two stroke engines are more reliable in operation as compare to 4 stroke engine.

Less Maintenance: The maintenance requirement of two stroke engine is much lesser than 4 stroke engine.

Direction control: Direct starting and reversing is easier with two stroke engine.

No reduction attachments: As two stroke engines are low speed engine, there are no requirement of reduction gear or speed reduction arrangement as required for high speed four stroke engine.

However, the ease-of-manoeuvring a two stroke engine is less than that of a four stroke engine and the initial cost of installation of a two stroke propulsion plant is also much higher than running and maintenance cost of a 4 stroke engine. In 2 stroke engine, the amount saved on high grade fuel can compensate all other disadvantages and also reduce the whole operating cost of a ship.

Refered from: http://marineinsight.com/news/featured/why-2-stroke-engines-are-used-more-commonly-than-4-stroke-on-ships/

??.:: Request Your Doubts Here ::.??

you need to know about these ..useful information.

..............

                                   .::ManindarKumar::.

          .::"I have no money, no resources, no hopes. I am the happiest man alive !"::.