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WHY VIT IS EFFECTIVE AFTER 40% MCR.
We know that V.I.T gets effective after 40% of M.C.R. But why is that it is not functional below 40% though V.I.T will improve sfoc and gives better efficiency. […]
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FUEL QUALITY SETTING (FQS)
FQS IS A MANUAL ADJUSTMENT OF FUEL INJECTION TIMING. THIS SETTING IS USED WHEN WE GET FUEL OF DIFFERENT IGNITION LAG. WHEN A FUEL IS RECEIVED, IT IS SENT TO […]
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BREAKING-IN AND RUNNING-IN OF M/E
BREAKING-IN PERIOD:- THE RUNNING IN OF THE NEW LINER AND PISTON RINGS IS CARRIED OUT DURING INITIAL RUNNING IN PERIOD, WHICH IS CALLED BREAKING-IN PERIOD AND DURING SUBSEQUENT SERVICE PERIOD […]
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MC ENGINE VS MC-C ENGINE
MC-C ENGINE IS COMPACT. MC-C OUTPUT PER CYLINDER IS MORE. MC-C HAS INCREASED STROKE TO BORE RATIO. TURBOCHARGER HAS BETTER EFFICIENCY IN MC-C. MC-C POWER TO WEIGHT RATIO IS MORE. […]
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OIL MIST DETECTOR SMOKE ALARM TEST
WITH THE DETECTOR FITTED , ELECTRICALLY CONNECTED, FUNCTIONING AND CONFIGURED, COMMENCE THE SMOKE ALARM TEST AS FOLLOWS :- A) CUT A LENGTH OF WICK OF ABOUT 30 MM LONG. ASSEMBLE […]
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M/E CHAIN DRIVE INSPECTION
FOLLOWING INSPECTION IS CARRIED OUT IN CHAIN DRIVE :- MAKE GENERAL INSPECTION FOR LOOSE SCREWS AND BOLTS. INSPECT FOR DAMAGE IN L.O PIPES AND NOZZLES. CHECK NOZZLE FOR DEFORMATION AND […]
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WHY CROSSHEAD BEARING PRESSURE OF M.A.N B&W IS MUCH LOWER THAN THAT OF SULZER
CROSSHEAD BEARING HAS AN OSCILLATING MOTION AND LOWER PART IS ALWAYS LOADED. HENCE IT IS NOT EASY TO LUBRICATE THIS BEARING. M.A.N B&W ENGINES INJECTS L.O TO CRANKCASE AT ABOUT […]
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HOT CORROSION IN EXHAUST VALVE
VANADIUM IS A FOUND IN FUEL USED IN MAIN ENGINE. THIS VANADIUM CAUSES A SERIOUS CORROSION IN EXHAUST VALVE WHEN PRESENT WITH SODIUM IN A RATIO OF 3:1 I.E (V/Na)=(3:1). […]
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TURBOCHARGER SURGE STABILITY TEST
ENGINE IS MADE TO RUN AT 100% LOAD AND THEN LOAD IS REDUCED SUDDENLY TO 75%. NO SURGING SHOULD BE OBSERVED FOR STABLE TURBOCHARGER. ENGINE IS MADE TO RUN AT […]
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WHY M/E EXHAUST VALVE DOENOT HAVE SPRING?
SPRINGS FOR EXHAUST VALVE WILL BE LARGE WITH LARGE DIAMETER AND COIL DIAMETER IS ALSO THICK. HEAVY COILS WILL BE UNDER THE EFFECT OF BENDING AND TWISTING CYCLICALLY AT EVERY […]
