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heavy carbon deposits will buildup on the valves and in the exhaust fuel dilution is increased at low load exhaust valves may be damaged all of the above
improperly seating intake valves leaking cylinder liner seal rings late fuel injection timing carbon deposits on the piston
H0：P1＝P2＝P3＝P4＝P5 H0：P1＝P2＝P3＝P4＞P5 H0：π1＝π2＝π3＝π4＝π5 H0：π1≠π2≠π3≠π4≠π5 H0：π1＝π2≠π3＝π4＝π5
decrease the velocity of gases flowing past the tubes increase the rate of heat transfer reduce accumulations carbon deposits direct the flow of gases
residual carbon deposits lube oil viscosity breakdown uneven heat expansion of the rings uneven heat expansion of the piston
carbon deposits on the compressor suction valves the evaporator temperature to increase rapid corrosion of the thermal expansion valve no operating problems
avoid using liquid-cooled nozzles whenever possible avoid low cooling water temperatures avoid prolonged overloading of the engine make certain the gasket seal between the nozzle and cylinder head is tight
loss of additives from the lube oil carbon deposits in the lube oil excessive centrifuging excessive fuel dilution
micro-seizure sticking scratched breakage / collapse
Ho：P1＝P2＝P3＝P4＝P5 Ho：P1＝P2＝P3＝P4＞P5 Ho：π1=π2=π3=π4=π5 Ho：π1≠π2≠π3≠π4≠π5 Ho：π1=π2≠π3=π4=π5
H0：p1=p2=p3=p4=p5 H0：p1=p2=p3=p4>p5 H0：π1=π2=π3=π4=π5 H0：π1≠π2≠π3≠π4≠π5 H0：π1=π2≠π3=π4=π5
Low viscosity index Low carbon forming tendencies High film strength High non-corrosive qualities
carbon deposits on the flame scanner high fuel oil temperature low fuel oil viscosity high steam pressure
faulty combustion excessive ring temperature over lubrication all of the above
overheated compressor bearings excess lube oil viscosity carbon deposits on the compressor piston rings wax crystals forming in the lubricant
H0：p1＝p2＝p3＝p4＝p5 H0：p1＝p2＝p3＝p4＞p5 H0：π1＝π2≠π3＝π4＝π5 H0：π1≠π2≠π3≠π4≠π5 H0：π1＝π2＝π3＝π4＝π5
The oil oxidizes and forms carbon deposits The viscosity increases Engine oil consumption decreases Lubricating qualities of the oil are enhanced
increase exhaust gas velocity through the boiler reduce accumulations of carbon deposits on the heat transfer surfaces eliminate exhaust gas pulsations and noise increase the rate of heat transfer to the waterside
Dim pi As Integer Dim pi(7)As Integer Dim pi As Single Dim pi As Long
turbocharger efficiency engine power output carbon deposits on fuel injectors cylinder scavenging
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