Description Overview Caterpillar G3520C generator set Year: 2011 Hours: approx. 30,000 Application: genset Specifications Voltage: 10500 Kva: 2500 Rpm: 1500 Frequency: 50 hz Engine speed: 1500 Fuel: nat gas Compression ratio: 11.3:1 Fuel system: caterpillar low pressure with air fuel ratio control Aftercooler - stage 1 max. inlet: 92 °c Aftercooler - stage 2 max. inlet: 32 °c Fuel press. range: 3.4 - 34.5 kpag Jacket water - max. outlet: 99 °c Min. methane number: 80 Cooling system: jw+oc+1ac, 2ac Rated altitude: 390 m Ignition system: adem3 At air to turbo. temp.: 25 °c Exhaust manifold: dry Nox emission level: 500 mg/nm3 Combustion: low emission Fuel lhv: 35.6 mj/nm3 Rating And Efficiency Engine power (without fan) at 100% load: 2070 kw Engine power (without fan) at 75% load: 1553 kw Engine power (without fan) at 50% load: 1035 kw Generator power (without fan) at 100% load: 2000 ekw Generator power (without fan) at 75% load: 1500 ekw Generator power (without fan) at 50% load: 1000 ekw Engine efficiency (iso 3046/1) at 100% load: 41.6% Engine efficiency (iso 3046/1) at 75% load: 40.4% Engine efficiency (iso 3046/1) at 50% load: 38.7% Engine efficiency (nominal) at 100% load: 40.6% Engine efficiency (nominal) at 75% load: 39.4% Engine efficiency (nominal) at 50% load: 37.8% Thermal efficiency (nominal) at 100% load: 42.8% Thermal efficiency (nominal) at 75% load: 43.7% Thermal efficiency (nominal) at 50% load: 45.0% Total efficiency (nominal) at 100% load: 83.3% Total efficiency (nominal) at 75% load: 83.1% Total efficiency (nominal) at 50% load: 82.7% Engine Data Fuel consumption (iso 3046/1) at 100% load: 8.67 mj/bkw-hr Fuel consumption (iso 3046/1) at 75% load: 8.91 mj/bkw-hr Fuel consumption (iso 3046/1) at 50% load: 9.31 mj/bkw-hr Fuel consumption (nominal) at 100% load: 8.88 mj/bkw-hr Fuel consumption (nominal) at 75% load: 9.13 mj/bkw-hr Fuel consumption (nominal) at 50% load: 9.54 mj/bkw-hr Air flow (0 °c, 101.3 kpa) at 100% load: 4.22 nm3/bkw-hr Air flow (0 °c, 101.3 kpa) at 75% load: 4.29 nm3/bkw-hr Air flow (0 °c, 101.3 kpa) at 50% load: 4.43 nm3/bkw-hr Air flow at 100% load: 5.46 kg/bkw-hr Air flow at 75% load: 5.55 kg/bkw-hr Air flow at 50% load: 5.72 kg/bkw-hr Compressor out pressure at 100% load: 323 kpa (abs) Compressor out pressure at 75% load: 245 kpa (abs) Compressor out pressure at 50% load: 168 kpa (abs) Compressor out temperature at 100% load: 179 °c Compressor out temperature at 75% load: 138 °c Compressor out temperature at 50% load: 94 °c Aftercooler air out temperature at 100% load: 35 °c Aftercooler air out temperature at 75% load: 34 °c Aftercooler air out temperature at 50% load: 34 °c Inlet man. pressure at 100% load: 279 kpaa Inlet man. pressure at 75% load: 213 kpaa Inlet man. pressure at 50% load: 149 kpaa Inlet man. temperature (measured in plenum) at 100% load: 35 °c Inlet man. temperature (measured in plenum) at 75% load: 34 °c Inlet man. temperature (measured in plenum) at 50% load: 34 °c Timing at 100% load: 32 °btdc Timing at 75% load: 32 °btdc Timing at 50% load: 32 °btdc Exhaust stack temperature at 100% load: 450 °c Exhaust stack temperature at 75% load: 476 °c Exhaust stack temperature at 50% load: 496 °c Exhaust gas flow (0 °c, 101.3 kpa) at 100% load: 4.48 nm3/bkw-hr Exhaust gas flow (0 °c, 101.3 kpa) at 75% load: 4.56 nm3/bkw-hr Exhaust gas flow (0 °c, 101.3 kpa) at 50% load: 4.7 nm3/bkw-hr Exhaust mass flow at 100% load: 5.65 kg/bkw-hr Exhaust mass flow at 75% load: 5.74 kg/bkw-hr Exhaust mass flow at 50% load: 5.93 kg/bkw-hr Emissions Data Nox (as no2) (corr. 5% o2) at 100% load: 500 mg/nm3 (dry) Nox (as no2) (corr. 5% o2) at 75% load: 500 mg/nm3 (dry) Nox (as no2) (corr. 5% o2) at 50% load: 500 mg/nm3 (dry) Co (corr. 5% o2) at 100% load: 981 mg/nm3 (dry) Co (corr. 5% o2) at 75% load: 958 mg/nm3 (dry) Co (corr. 5% o2) at 50% load: 921 mg/nm3 (dry) Thc (corr. 5% o2, molecular weight of 15.84) at 100% load: 2633 mg/nm3 (dry) Thc (corr. 5% o2, molecular weight of 15.84) at 75% load: 2985 mg/nm3 (dry) Thc (corr. 5% o2, molecular weight of 15.84) at 50% load: 3285 mg/nm3 (dry) Nmhc (corr. 5% o2, molecular weight of 15.84) at 100% load: 395 mg/nm3 (dry) Nmhc (corr. 5% o2, molecular weight of 15.84) at 75% load: 448 mg/nm3 (dry) Nmhc (corr. 5% o2, molecular weight of 15.84) at 50% load: 493 mg/nm3 (dry) Co2 (corr. 5% o2) at 100% load: 208587 mg/nm3 (dry) Co2 (corr. 5% o2) at 75% load: 210050 mg/nm3 (dry) Co2 (corr. 5% o2) at 50% load: 209875 mg/nm3 (dry) Exhaust o2 at 100% load: 9.4% dry Exhaust o2 at 75% load: 9.5% dry Exhaust o2 at 50% load: 9.3% dry Lambda at 100% load: 1.77 Lambda at 75% load: 1.75 Lambda at 50% load: 1.73 Heat Balance Data Lhv input at 100% load: 5104 kw Lhv input at 75% load: 3937 kw Lhv input at 50% load: 2741 kw Heat rejection to jacket at 100% load: 585 kw Heat rejection to jacket at 75% load: 506 kw Heat rejection to jacket at 50% load: 413 kw Heat rejection to atmosphere at 100% load: 138 kw Heat rejection to atmosphere at 75% load: 115 kw Heat rejection to atmosphere at 50% load: 92 kw Heat rejection to lube oil at 100% load: 129 kw Heat rejection to lube oil at 75% load: 114 kw Heat rejection to lube oil at 50% load: 97 kw Heat rejection to exhaust (lhv to 25°c) at 100% load: 1684 kw Heat rejection to exhaust (lhv to 25°c) at 75% load: 1375 kw
