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SHORT CYCLING OF REFRIGERATION COMPRESSOR
SHORT CYCLING MEANS CONTINUOUS STARTING AND STOPPING OF COMPRESSOR. THERE ARE FOLLOWING REASON FOR SHORT CYCLING :- LOW PRESSURE CUT OUT FAULTY. LOW PRESSURE CONTROL DIFFERENCE TOO SMALL. WRONGLY ADJUSTED […]
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REFRIGERATION CONDENSER PRESSURE TOO HIGH
NORMAL CUTTING OUT PRESSURE OF REFRIGERATION COMPRESSOR FOR HIGH DISCHARGE PRESURE IS NORMALLY 18 BAR. BUT WHEN THE HIGH CUT OUT HAPPENS COMPRESSOR DO NOT START ON ITS OWN. IT […]
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WHICH TYPE OF PUMP IS MAIN ENGINE L.O PUMP AND WHY?
WELL ANY GUESS, IT SHOULD BE A POSITIVE DISPLACEMENT PUMP RIGGGHHHHHHHHTTTTTTT. OBVIOUSLY IT DOES NOT NEED PRIMING SO BEST OPTION FOR A MAIN ENGINE L.O PUMP. WILL START AND DIRECTLY […]
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REASON FOR COMPRESSOR RUNNING CONTINUOUSLY
COMPRESSOR IS ONE OF THE MOST IMPORTANT MACHINERY ON-BOARD. ITS MAINTENANCE IS OF PRIME IMPORTANCE FOR EFFICIENT RUNNING OF THE SHIP. […]
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FISH ROOM TEMPERATURE NOT DECREASING
ONE DAY WHILE TAKING ROUND, YOU FOUND OUT THAT THE TEMPERATURE OF FISH ROOM IS NOT NORMAL I.E ITS HIGH. NOW THE QUESTION IS HOW COME OTHER ROOM TEMPERATURE IS […]
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REASON FOR HIGH EXHAUST TEMPERATURE
DURING DAILY ROUNDS OF THE ENGINE ROOM, CHECKING THE EXHAUST TEMPERATURE IS A NORMAL AND MOST IMPORTANT OBSERVATION. IT TELLS THE WORKING CONDITION OF THE ENGINE AND ANY POSSIBLE DEVIATION […]
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WHAT TO DO IF BURSTING DISC OF COMPRESSOR BURST DURING MANEUVERING
BURSTING DISC IS PROVIDED IN INTER-COOLER TO PROTECT IT’S CASING IN CASE INTER-COOLER LINE BURST. BURSTING OF INTER-COOLER WILL MAKE PRESSURIZED AIR TO ENTER THE CASING AND MAY LEAD TO […]
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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 […]
