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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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WHY CENTRIFUGAL PUMPS ARE STARTED WITH DISCHARGE VALVE CLOSED
IT IS A NORMAL PRACTICE TO START THE CENTRIFUGAL PUMP WITH ITS DISCHARGE VALVE CLOSED. THE REASON BEHIND THIS CAN BE FOUND OUT BY LOOKING AT THE CHARACTERISTIC CURVE OF […]
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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 […]
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WHY AUXILIARY ENGINE NOT LOADED INSTANTANEOUSLY
IT IS ADVISABLE TO LOAD TO AUXILIARY ENGINE SLOWLY. THIS IS BECAUSE SUDDEN LOADING LEAD TO OVERHEATING. THIS IS BECAUSE, THE CONTACT BETWEEN THE LINER AND SKIRT IS A LINE […]
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HOW TO VENT AIR FROM STEERING GEAR SYSTEM
AIR IN THE STEERING GEAR SYSTEM WILL LEAD TO HUNTING OF THE STEERING GEAR. HENCE REMOVAL OF AIR IS A NECESSITY FOR PROPER FUNCTIONING OF STEERING GEAR AND SAFE NAVIGATION. […]
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WHY CON-ROD OF 4-STROKE ENGINE IS I-SECTION
THE CON-ROD OF 4-STROKE ENGINE IS SUBJECTED TO AN INERTIA WHIP LOADING DUE TO MASS OF THE PISTON SWINGING ABOUT THE PISTON AND HIGH SPEED OF ROTATION. IN 2 STOKE […]
