DOOSAN INFRACORE GENERATOR ENGINE Gross Engine Output - without Cooling Fan Net Engine Output - with Cooling Fan Ratings Definitions The power ratings of Emergency Standby and Prime are in accordance with ISO 8528. Fuel Stop power in accordance with ISO 3046. Electric power(kWe) should be estimated by considering generator efficiency, cooling fan power loss and power derating due to altitude and ambient temperature. STANDBY POWER RATING is applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. A standby rated engine should be sized for a maximum of an 70% average load factor and 200 hours of operation per year. This includes less than 25 hours per year at the Standby Power rating. PRIME POWER RATING is available for an unlimited of hours per year in variable load application. Variable load should not exceed a 70% average of the Prime Power rating during any operating period of 24 hours. The Total operating time at 100% Prime Power shall not exceed 500 hours per year. A 10% overload capability is available for a period of 1 hour within a 12 hour period of operation. Total operating time at the 10% overload power shall not exceed 25 hours per year. ◎ GENERAL ENGINE DATA ㅇEngine Model ㅇEngine Type 4-Cycle, V-type, 8-Cylinder, Turbo charged & intercooled (air to air) ㅇCompression ratio Counter clockwise viewed from Flywheel ㅇFiring order ㅇInjection timing ㅇDry weight ㅇDimension (LxWxH) ㅇFly wheel housing ㅇFly wheel ㅇNumber of teeth on flywheel ◎ ENGINE MOUNTING ㅇMaximum Bending Moment at Rear Face to Block ◎ EXHAUST SYSTEM ㅇMaximum Back Pressure ◎ AIR INDUCTION SYSTEM ㅇMaximum Intake Air Restriction . With Clean Filter Element . With Dirty Filter Element ㅇMax. static pressure after Radiator

◎ COOLING SYSTEM Water circulation by centrifugal pump on engine. ㅇCooling method Fresh water forced circulation ㅇCoolant capacity Engine Only : Approx. 20 lit, With Radiator(*Air On 43℃) : Approx 79 lit. ㅇCoolant flow rate ㅇWater Temperature - Maximum for standby and Prime - Before start of full load ㅇWater pump Centrifugal type driven by belt ㅇThermostat Type and Range Wax – pellet type, Opening temp. 71°C , Full open temp. 85°C Blower type, plastic , 915 mm diameter, 7 blade ㅇMax. external coolant system restriction * Two radiator options are provided, based on allowable maximum Air temperature...

◎ VALVE SYSTEM ㅇ Type Overhead valve type Intake 1, exhaust 1 per cylinder ㅇ Valve lashes at cold ㅇ Valve timing Opening -. Intake valve -. Exhaust valve Prime Power Standby Power ㅇGoverned Engine speed ㅇEngine Idle Speed ㅇOver speed limit ㅇGross Engine Power Output ㅇBreak Mean effective pressure ㅇMean Piston Speed ㅇFriction Power ㅇSpecific fuel consumption ㅇFan Power ㅇSound Pressure at 1m from the each side of Cylinder Block (without Fan) The all data and the specific fuel consumption are based on ISO 3046/1, Standard reference conditions are in accordance with 298 K(25˚ Celsius) air temperature,...

◎ DERATING FROM ISO 3046 STANDARD CONDITIONS The maximum power is the STANDBY rating when assessing derate prameters. Ambient temperature is air inlet temperature. Derate(%) (Ambient Temp) (52℃) (45℃) (38℃) 35% (30℃) (Ambient Temp) ◆ CONVERSION TABLE in. = mm x 0.0394 PS = kW x 1.3596 psi = kg/cm2 x 14.2233 in3 = lit. x 61.02 hp = PS x 0.98635 lb = kg x 2.20462 kW = kcal/sec x 0.239 lb/ft = N.m x 0.737 U.S. gal = lit. x 0.264 kW = 0.2388 kcal/s lb/PS.h = g/kW.h x 0.00162 cfm = m3/min x 35.336 MPa = kPa x 1000 = bar x 10 Doosan Infracore Co., Ltd. 21st Floor, Doosan Tower, 18-12, Euljiro 6-ga,...