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(6) Slightly Used Cooper Superior Model 2406

Item Number:
Make: Cooper Superior
Model: 2406
Fuel Type: Natural Gas
   
# Of Units: 6
MW Each 790 kW - 895 kW
MW Total: 4.47 - 5.37
Voltage: 400 - 480
Hertz: 60
RPM: 1200
$/kW:
   
Year:
Run Hours:
Rebuild Hours:
# Of Starts:
   
Unit Location:
Unit Price: SOLD
   
More Info:  
(6) Slightly Used Cooper Superior Model 2406 Natural Gas Generators Housed in a “Modular” Sound Attenuated Building Canceled Project @60 Hertz 895 kW Each Continuous 5.37 MW Total 480 Volts @ 50 Hertz 790 kW Each Continuous 4.74 MW Total 400 Volts (Presently configured @ 60 Hertz) (5) Units with Test Hrs Only (1) Unit with 3,000 Run Hrs PLUS: 1 MW Mitsubishi Diesel Prime Power Emergency Back-Up Generator with 4,561 Run Hrs. Load Tested Est. cost from by local rigger to dismantle and load plant on trucks = $70,000 General Information: This generating plant includes a 5.4 MW islanded generating system powered by six natural gas-fueled, lean-burn, spark-ignited, Cooper Superior Model 2406  reciprocating engines operating at 1200 RPM.  The plant is fully black start capable, and island or grid-parallel operating modes are possible.  Modular construction is used throughout, with six modules each containing one natural gas engine, its radiator and associated auxiliaries, and a seventh module containing a 1.0 MW diesel emergency generator and the plant switchgear and oil and compressed air utilities.  The modules can be removed and transported as individual units.  Only natural gas, oil, and compressed air piping, and power and control wiring tie one module to another.  A single ply membrane has been applied on top of the modules to provide a continuous leak-proof roof over the engine sections of the generator modules. Electrical Connections - Buss duct is used for all gas generator output power connections to the main switch, cable tray for all connecting control wiring.  The diesel generator is connected via conventional wire and wireway. Jacket Water and Auxiliary (Oil and Turbocharger Intercooler) Cooling Jacket water and auxiliary radiators are roof mounted (horizontally) above an air plenum room below, which is pressurized by four 5 HP electric motor-driven cast propeller fan assemblies.  The fans for each module are individually controlled based on return jacket water temperature by the house controller, to minimize parasitic fan energy losses.  The auxiliary radiator and jacket water are in series in the airflow, with air passing from the plenum room through the auxiliary radiator first, then through the jacket water radiator above. Block Heating - Each group of three gas engines is thermally coupled by a three pass welded plate heat exchanger that allows a single running engine to maintain 160 degF jacket water temperatures in its two companion gensets.  The three engines’ jacket water systems are completed isolated from one another by the plate heat exchanger.  The diesel engine has a conventional thermostatically controlled electric block heater. Utilities - Makeup oil is supplied from a central location via hard piping and permanent pump to each engine’s makeup oil tank and also directly to the oil sump fill point, ahead of the oil level regulator.  Spent oil from each engines’ sump and oil cooler is evacuated via permanent pump and hard piping to an outdoor waste oil tank capable of storing one complete set of oil changes for all six gas engines.  Using this system, oil replenishment and changes can be accomplished quickly and without risk of spill or wasted oil. Compressed air is supplied via a 10 HP Ingersoll Rand industrial air compressor with a vertical tank.  Compressed air is available for operating pneumatic engine controls and pneumatic service tools.  Engine pneumatics can also be operated using the high pressure natural gas fuel supply, although this mode of operation requires that fuel gas supply pressures be maintained above 50 psig in order to achieve full generating system output. Sound Attenuation - The generation modules are fully noise attenuated with engineered acoustical materials.  Exhaust noise is muffled with critical grade silencers. The system currently emits sound resulting in noise levels below 65 dBA at the property line approximately 100 ‘ away.  This noise drops to almost 55 dBA when the radiator fans are not operating.  Use of a variable speed drive to slow the fans rotational speed could be expected to lower overall sound levels to below 58 dBA at all times, under all load conditions. Cogeneration Equipment - Each gas generator is equipped with a welded plate jacket water heat exchanger sized for complete recovery of jacket water heat.  The secondary side of these heat exchangers is not currently connected to any of the plant thermal load. Equipment List Ratings Model 2406G CONTINUOUS 1,200 rpm        1,000 rpm        900 rpm bhp                  1,200               1,060              950 kWm                   895                 790               708 kWe                    850                 750               675 PRIME 1,200 rpm        1,000 rpm        900 rpm bhp                  1,320              1,110               990 kWm                   984                825               738 kWe                    935                785               700 INTERMITTENT 1,200 rpm        1,000 rpm        900 rpm bhp                  1,385              1,155            1,045 kWm                1,033                 861               779 kWe                    980                 820               740 Natural Gas Power Cogeneration Plant, consisting of the following components: Six (6) Cooper Superior Model 2406 Natural Gas Powered Generators; 1 MW Mitsubishi Diesel Prime Power Generating Back-Up Generator; Switch gear; Cooling tower; Outdoor oil waste tank; 10 HP Ingersoll Rand industrial air compressor; Gardiner Denver gas compressor unit; Exhaust stacks; Gas compressor; Modular generator building (3’ X 12’ bolt together panels) Two (2) transformers; Piping; Wiring; Sound attenuation; and Heat exchangers. Run Hours: Five of the Cooper Superior 2406 units have only test hours and the sixth unit has Thermal Efficiency Quick calculation for thermal efficiency =  2545 divided by bsfc in btu/bhp-hr times 100. From the data book the 2406GTL bsfc is 6900 btu/bhp-hr at 100% load, 1200 rpm. Therefore 2545/6900 x 100  = 36.88%. Maintenance Cost In regards to the maintenance cost for operating Cooper Superior natural gas reciprocating engines Jay Serve the technical representative for Cooper Compression said that he estimates 6/10th of a cent per kW hour ($.006) which equates to $9.00 per MW hour. Fuel Consumption 1200BHP * 6900 btu/bhp-hr/ 930 btu per scf/100ccf*1.30 = $115.75 per hr. Serial numbers for the six Cooper Superior natural gas generators are as follows: 338619 335519 338619 340069 340079 327489 Mitsubishi Diesel back-up generator serial # 10314-B420 More Information: Factory Technical Brochure
   









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