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20 v R = c v 2 v P = R v = v 3 v n P = n 3

21 v 1 v = n 1 n P 1 P = c 1 c P 1 P = n 1 c 1 n 3 c = v 1 v c P P = c v 4.5 P = c v 4 P = c v 3.5 v 1 = 24 v 2 = 18 c 1 c = v 1 c 2 v = = 3.65 c

22 c 2 = c 1 C 2 = C 1 C 2 = C 1 C

27 S + O 2 SO 2 SO O 2 SO 3 SO 3 + H 2 O H 2 SO

31 o

32 o C o C o C

39 2 primary secondary primary

51 Air Filter Pressure drop (mmw) Comparative diagram of air filter pressure drop Shop test Simulation Engine load (%) Comparative diagram of compressed air temperature at the air cooler inlet Air Temperature at the Cooler Inlet ( o C) Shop test Simulation Engine load (%)

52 35000 Comparative diagram of main engine s brake power Brake power(kw) Shop test Simulation Engine load (%) Comparative diagram of specific fuel oil consumption Shop test Simulation bsfc (gr/kwhr) Engine load (%)

53 Compression Pressure (bar(g)) Comparative diagram of cylinder compression pressure Engine load (%) Shop test Simulation Cylinder Temperature ( o C) Comparative diagram of cylinder temperature Shop test Simulation Engine load (%)

54 Exhaust Gas Backpressure (mmw) Comparative diagram of exhaust gas backpressure 50 Shop test Simulation Engine load (%) 3 Comparative diagram of exhaust gas pressure Exhaust Gas Pressure (bar(g)) Shop test Simulation Engine load (%)

55 Exhaust Gas Temperature at the Turbine Inlet ( o C) Comparative diagram of exhaust gas temperature at the turbine inlet Shop test Simulation Engine load (%) Exhaust Gas Temperature at the Turbine Outlet ( o C) Comparative diagram of exhaust gas temperature at the turbine outlet Shop test Simulation Engine load (%)

56 Comparative diagram of turbocharger rotational speed N(RPM) Shop test Simulation Engine load (%) Maximum Pressure (bar(g)) Comparative diagram of cylinder maximum pressure Shop test Simulation Engine load (%)

57 Scavenge Air Pressure (bar(g)) Comparative diagram of scavenge air pressure Engine load (%) Shop test Simulation Scavenge Air Temperature (Celsius) Comparative diagram of compressed air temperature at the air cooler outlet (Scavenge air temperature) Engine load (%) Shop test Simulation

59 o

60 max comp

62 70 60 Indicator diagram comparison at 15% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.) Indicator diagram comparison at 20% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.)

63 Indicator diagram comparison at 25% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.) Indicator diagram comparison at 31% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.)

64 Indicator diagram comparison at 35% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.) Indicator diagram comparison at 40% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.)

65 Indicator diagram comparison at 45% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.) Indicator diagram comparison at 50% of engine load normal T/C cut-out Pressure (bar) Crankshaft angle (Deg.)

66 Pressure (bar) Indicator diagram comparison Normal condition Crankshaft angle (Deg.) 15% 20% 25% 31% 35% 40% 45% 50% Pressure (bar) Indicator diagram comparison Condition with one turbocharger cut out 15% 20% 25% 31% 35% 40% 45% 50% Crankshaft angle (Deg.)

67 100 Cylinder pressure increase over the engine load due to T/C cut-out Mean increase in Cylinder Pressure (%) Engine load(%) o

68 Heat release rate comparison at 15% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.)

69 Heat release rate comparison at 20% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.) Heat release rate comparison at 25% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.)

70 Heat release rate comparison at 31% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.) Heat release rate comparison at 35% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.)

71 Heat release rate comparison at 40% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.) Heat release rate comparison at 45% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.)

72 Heat release rate comparison at 50% of engine load normal T/C cut-out HRR (Joules/Deg.) Crankshaft angle (Deg.) HRR (Joules/Deg.) Heat release rate comparison-normal condition 15% 20% 25% 31% 35% 40% 45% 50% Crankshaft angle (Deg.)

73 Heat release rate comparison-condition with one turbocharger cut out HRR (Joules/Deg.) Crankshaft angle (Deg.) 15% 20% 25% 31% 35% 40% 45% 50%

74 Percentage difference of the total amount of heat released (%) Fluctuation of the total heat released over the engine load due to T/C cut-out Engine load(%)

75 Average temperature comparison at 15% of engine load normal T/C cut-out T( o C) Crankshaft angle (Deg.)

76 Average temperature comparison at 20% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.) Average temperature comparison at 25% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.)

77 Average temperature comparison at 31% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.) Average temperature comparison at 35% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.)

78 Average temperature comparison at 40% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.) Average temperature comparison at 45% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.)

79 Average temperature comparison at 50% of engine load normal T/C cut-out 800 T( o C) Crankshaft angle (Deg.)

80 Cylinder mean temperature decrease over the engine load due to T/C cut-out 0 Mean decrease in Cylinder Temperature (%) Engine load(%)

84 Comparative diagram of main engine s brake power normal (simulation) T/C cut out (simulation) Brake power(kw) Engine load (%)

85 Maximum Pressure (bar(g)) Comparative diagram of cylinder maximum pressure normal (simulation) T/C cut out (simulation) Engine load (%)

86 Compression Pressure (bar(g)) Comparative diagram of cylinder compression pressure normal (simulation) T/C cut out (simulation) Engine load (%)

87 Cylinder Temperature ( o C) Comparative diagram of cylinder temperature normal (simulation) T/C cut out (simulation) Engine load (%)

88 Comparative diagram of turbocharger rotational speed normal (simulation) T/C cut out (simulation) 8000 N(RPM) Engine load (%)

89 Scavenge air Pressure (bar(g)) Comparative diagram of scavenge air pressure normal (simulation) T/C cut out (simulation) Engine load (%)

90 Exhaust gas Pressure (bar(g)) Comparative diagram of exhaust gas pressure normal (simulation) T/C cut out (simulation) Engine load (%)

91 Comparative diagram of air mass flow normal (simulation) T/C cut out (simulation) Air mass flow (kg/hr) Engine load (%)

92 Exhaust gas mass flow (kg/hr) Comparative diagram of exhaust gas mass flow normal (simulation) T/C cut out (simulation) Engine load (%)

93 Exhaust gas Backpressure (mmw) Comparative diagram of exhaust gas backpressure normal (simulation) T/C cut out (simulation) Engine load (%)

94 Exhaust gas Temperature at turbine inlet ( o C) Comparative diagram of exhaust gas temperature at the turbine inlet normal (simulation) T/C cut out (simulation) Engine load (%)

95 Exhaust gas Temperature at turbine outlet ( o C) Comparative diagram of exhaust gas temperature at the turbine outlet normal (simulation) T/C cut out (simulation) Engine load (%)

96 Air Temperature at the air cooler inlet ( o C) Comparative diagram of compressed air temperature at the air cooler inlet normal (simulation) T/C cut out (simulation) Engine load (%)

97 Scavenge Air Temperature ( o C) Comparative diagram of compressed air temperature at the air cooler outlet (Scavenge air temperature) normal (simulation) T/C cut out (simulation) Engine load (%) o C o C o C

98 Air filter Pressure drop (mmw) Comparative diagram of air filter pressure drop normal (simulation) T/C cut out (simulation) Engine load (%)

99 90 Comparative diagram of A/C pressure drop A/C Pressure drop (mmw) normal (simulation) T/C cut out (simulation) Engine load (%)

100 Comparative diagram of specific fuel oil consumption normal (simulation) T/C cut out (simulation) bsfc (gr/kwhr) Engine load (%)

101

102 x

103

104 Decrease in specific fuel consumpion and corresponding increase of the maximum pressure due to T/C cut-out 0 BSFC reduction P max increase bfsc (gr/kwhr) P max (bar) Engine load (%)

105

106

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