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WHY PISTON COOLING OIL GOES FROM BOTTOM TO TOP AND NOT TOP TO BOTTOM
IN THE MAIN ENGINE WITH PISTON COOLING OIL, WE SEE THAT COOLING OIL GOES FROM BOTTOM OF THE PISTON ROD THEN MOVES UP TO PISTON. […]
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NOX REDUCTION METHOD- “THE MILLER PRINCIPLE”
IT IS A METHOD OF REDUCING THE NOX EMISSION FROM THE ENGINE. FOR NOX REDUCTION BY MILLER PRINCIPLE THE SCAVENGE AIR PORTS ARE LOWER AND THEIR OPENINGS ARE MADE NARROW. […]
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AIR CONDITIONER UNLOADER
IN THE FIGURE ABOVE WE CAN SEE THAT THE LUBE OIL PUMP IS SUPPLYING OIL TO THE UNLOADER. BUT DURING START THE SUCTION VALVES ARE ALREADY UNLOADED. NOW WHEN SOLENOID […]
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WHY FUELS HAVE 2 CALORIFIC VALUES
CALORIFIC VALUE OF FUEL IS THE QUANTITY OF HEAT PRODUCED BY IT’S COMBUSTION AT CONSTANT PRESSURE AND STANDARD CONDITION I.E AT 0°C AND UNDER A PRESSURE OF 1013 mbar. HIGHER […]
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WHY CETANE NUMBER NOT USED FOR RESIDUAL FUEL
Cetane Number is indicator of quality of lighter distillate fuels. It is an inverse function of a fuel’s ignition delay i.e. higher the cetane no. quicker the fuel will burn. […]
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WHY PISTON CROWN OF A/E AND M/E IS NOT FLAT
PISTON CROWNS ARE NORMALLY CONCAVE IN SHAPE. THEY ARE NEVER MADE FLAT. THE REASON BEHIND THIS IS THAT, DUE TO AS THE GAS PRESSURE INCREASES AND DECREASES, THE FLAT PISTON […]
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“PINCH POINT” IN EXHAUST GAS BOILER
PINCH POINT IN EXHAUST GAS BOILER IS THE DIFFERENCE IN TEMPERATURE BETWEEN THE EXHAUST GAS LEAVING THE EVAPORATOR SECTION AND SATURATED STEAM. LOWER THE PINCH POINT, HIGHER THE E.G.B EFFICIENCY […]
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IMPORTANCE OF BACK PRESSURE VALVE IN VEGETABLE ROOM
VEGETABLE ROOM TEMPERATURE IS MAINTAINED AT 4°C WHILE THAT OF FISH AND MEAT ROOM ABOUT -15 TO -20°C. THE REFRIGERANT REQUIREMENT OF FISH AND MEAT ROOM IS MORE THAN THAT […]
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HOW TO INCREASE THE EFFICIENCY OF AIR COMPRESSOR
AIR COMPRESSOR IS REQUIRED FOR PRODUCING COMPRESSED AIR AND THIS AIR IS USED TO START MAIN ENGINE AND SERVICE ALSO. TO INCREASE THE EFFICIENCY OF AIR COMPRESSOR FOLLOWING STEPS CAN […]
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ALPHA LUBRICATION
INTRODUCTION It is a well known fact that the actual need for cylinder oil quantity varies with the operational conditions such as load and fuel oil quality. Consequently, in order […]
