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DUEL FUEL ENGINE TYPES
DUAL FUEL ENGINE PRE-MIXED LOW-PRESSURE GAS INJECTION: Advantages: Low-pressure gas supply means low investment costs and low power consumption Pilot fuel quantity below 1% of total heat release DF engine […]
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ALPHA LUBRICATION CONTD.
Alpha cylinder lubrication system, is designed to supply cylinder oil intermittently, every 2 to 20 engine revolutions with electronically controlled timing and dosage at a defined position. […]
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WHY LOWER TBN CYLINDER OIL IS USED FOR LOW SULPHUR OIL
FUEL OIL CONTAINS SULPHUR WHICH REACTS WITH WATER WHILE BURNING INSIDE THE CYLINDER TO FROM H2SO4. THIS H2SO4 CAUSES COLD CORROSION, WHICH LEAD TO LINER WEAR. TO COUNTERACT IT THE CYLINDER […]
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DEADBAND OF GOVERNOR
DEADBAND OF GOVERNOR IS THE RANGE OF SPEED, ONLY AFTER WHICH THE GOVERNOR STARTS RESPONDING. IN OTHER WORDS WE CAN SAY THAT; DEADBAND IS INVERSELY PROPORTIONAL TO […]
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FACTORS AFFECTING VOLUMETRIC EFFICIENCY OF AIR COMPRESSOR
FOLLOWING FACTORS EFFECT THE VOLUMETRIC EFFICIENCY OF AIR COMPRESSOR:- CLEARANCE BETWEEN THE PISTON AT T.D.C AND CYLINDER COVER. LARGER THE CLEARANCE, LESSER THE AIR DISCHARGED PER STROKE AND LESSER WILL […]
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“SPEED DROOP” IN GOVERNOR
IT IS DEFINED AS DIFFERENCE IN ROTATIONAL SPEED OF THE GOVERNED ENGINE BETWEEN NO LOAD SPEED AND FULL LOAD SPEED. A SMALL DROOP MEANS A SENSITIVE GOVERNOR WHICH IS ACTIVATED […]
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HUNTING OF GOVERNOR
IN PREVIOUS POST OF GOVERNOR “SENSITIVITY AND STABILITY” WE CAME TO KNOW WHAT IS SENSITIVITY OF GOVERNOR. HUNTING OF GOVERNOR IS CAUSED DUE TO OVER SENSITIVE GOVERNOR. WHEN […]
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GOVERNOR “SENSITIVITY AND STABILITY”
SENSITIVITY OF A GOVERNOR IS A MEASURE OF ITS ABILITY TO CONTROL THE SPEED OF THE ENGINE WITHIN NARROW LIMIT. THIS WILL LEAD TO A LARGE MOVEMENT OF CONTROL SLEEVE […]
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COLD CORROSION
COLD CORROSION IS A PHENOMENON WHICH IS CAUSED DUE TO THE FORMATION OF SULFURIC ACID FORMED INSIDE THE CYLINDER DUE TO CONDENSATION OF WATER. THIS WATER CONDENSES AS THE DEW […]
