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Wartsila, W20V34SG, 2018, 18.76 MW, 60 Hz, 13.8 kV, Gas Engine Generator Sets (New)

Wartsila, W20V34SG, 2018, 18.76 MW, 60 Hz, 13.8 kV, Gas Engine Generator Sets

Description

  1. Overview
    1. Wartsila generator W20V34SG engine-generator sets
    2. 2 x 9.38 MW = 18.76 MW total capacity
    3. 60 Hz frequency
    4. 13.8 kV voltage
    5. Year: 2018
    6. New, never used, surplus
    7. Pre-designed, single engine power plant solution using W20V34SG (Gascube)
    8. 16V34SG option available
    9. Targeted for power plants with 1 to 3 engines
  2. Features
    1. High electrical efficiency through minimization of plant own consumption
    2. Simple technical solutions
    3. 100% detail design
    4. No changes in the cube, options outside (tanks, switchgear room, etc.)
  3. Engine Specifications
    1. Cylinder bore: 340 mm
    2. Piston stroke: 400 mm
    3. Speed: 720 / 750 rpm
    4. Mean effective pressure: 20.0 / 19.8 bar
    5. Piston speed: 9.6 / 10 m/s
    6. Natural gas specification for nominal load: lower heating value ≥ 28 MJ/m³N
  4. Technical Data – 50 Hz / 750 rpm
    1. Electrical power: 4343 kW, 7744 kW, 9730 kW
    2. Heat rate: 7843 kJ/kWh, 7819 kJ/kWh, 7779 kJ/kWh
    3. Electrical efficiency: 45.9%, 46%, 46.3%
  5. Technical Data – 60 Hz / 720 rpm
    1. Electrical power: 4169 kW, 7434 kW, 9341 kW
    2. Heat rate: 7843 kJ/kWh, 7819 kJ/kWh, 7779 kJ/kWh
    3. Electrical efficiency: 45.9%, 46%, 46.3%
  6. Generating Set Dimensions and Dry Weight
    1. Length: 10400 mm, 11300 mm, 12890 mm
    2. Width: 2780 mm, 3300 mm, 3300 mm
    3. Height: 3840 mm, 4240 mm, 4440 mm
    4. Weight: 77 tonne, 120 tonne, 130 tonne
  7. Performance Notes
    1. Heat rate and electrical efficiency at generator terminals, including engine driven pumps, ISO 3046 conditions and gas LHV > 28 MJ/m³N
    2. Tolerance: 5%
    3. Power factor: 0.8
    4. Gas methane number > 80
    5. Nm³ defined at NTP (273.15 K and 101.3 kPa)
  8. Mechanical Drive Specifications
    1. Cylinder bore: 340 mm
    2. Piston stroke: 400 mm
    3. Speed: 720 / 750 rpm
    4. Mean effective pressure: 20.0 / 19.8 bar
    5. Piston speed: 9.6 / 10 m/s
    6. Natural gas specification for nominal load: lower heating value ≥ 28 MJ/m³N
  9. Mechanical Drive Technical Data – 750 rpm
    1. Shaft power: 4050 kW (5431 hp), 7200 kW (9655 hp), 9000 kW (12069 hp)
    2. Heat rate: 7724 kJ/kWh
    3. Shaft efficiency: 46.6%
  10. Mechanical Drive Dimensions and Dry Weight
    1. Length: 6844 mm, 7803 mm, 8925 mm
    2. Width: 2366 mm, 3619 mm, 3670 mm
    3. Height: 3437 mm, 4100 mm, 4404 mm
    4. Weight: 46.1 tonne, 70.8 tonne, 78.3 tonne
  11. Mechanical Drive Performance Notes
    1. Heat rate and efficiency at shaft, including engine driven pumps, ISO 3046 conditions and gas LHV > 28 MJ/m³N
    2. Tolerance: 5%
    3. Gas methane number > 80
    4. Nm³ defined at NTP (273.15 K and 101.3 kPa)
  12. Scope of Supply – Power Generation Equipment
    1. Generating set: Wartsila 20V34SG engine, D-stage (quantity: 2)
    2. Common base frame (quantity: 2)
    3. Set of flexible connections between engine and external piping - flexible rubber bellows for water pipes (quantity: 1)
    4. Generating set assembly (quantity: 2)
    5. Set steel springs isolators (quantity: 2)
    6. Language plates - other than English (quantity: 2)
    7. Engine maintenance platform - prefabricated (quantity: 2)
  13. Scope of Supply – Generator
    1. Generator – 13800 V (quantity: 2)
    2. Flexible coupling (quantity: 2)
    3. Flywheel cover (quantity: 2)
  14. Scope of Supply – Mechanical Auxiliary Systems
    1. Engine auxiliary module (quantity: 2)
    2. Engine auxiliary module appendix (quantity: 2)
    3. Exhaust gas module (quantity: 2)
    4. Engine auxiliary module platform (quantity: 2)
  15. Scope of Supply – Fuel System – Purge Gas System
    1. Plant isolation valve (manual) – DN80 (quantity: 1)
    2. Gas flow measuring unit for purge gas (quantity: 1)
    3. Gas compressor unit (2 x 100%) (quantity: 1)
    4. Gas pressure reduction system (quantity: 1)
  16. Scope of Supply – Fuel System – Natural Gas System
    1. Plant isolation valve (manual) – DN80 (quantity: 1)
    2. Gas flow measuring unit for natural gas (quantity: 1)
    3. Gas pressure reduction station (2 x 100%) (quantity: 1)
    4. Main safety shut off valve - engine specific (quantity: 2)
    5. Gas regulating unit (quantity: 2)
    6. Flow meter for gas regulating unit (quantity: 2)
  17. Scope of Supply – Lubricating Oil System
    1. Lubricating oil unloading pump unit - single (quantity: 1)
    2. Lubricating oil storage tank – 13 m³ (quantity: 1)
    3. Lubrication oil storage tank equipment (quantity: 1)
    4. Lubrication oil used / service tank - 13 m³ (quantity: 1)
    5. Lubrication oil used / service tank equipment (quantity: 1)
    6. Lubrication oil transfer pump - stationary (quantity: 1)
    7. Oil mist separator (quantity: 1)
    8. Lubricating oil heat exchanger (mounted on the engine) (quantity: 2)
    9. Lubricating oil thermostatic valve (mounted on the engine) (quantity: 2)
  18. Scope of Supply – Lubrication Oil System Piping
    1. Piping and valves - insulated, lubrication oil system, day tank area (quantity: 1)
    2. Piping and valves - insulated, lubrication oil system, engine hall (quantity: 1)
  19. Scope of Supply – Compressed Air System
    1. Instrument air compressor unit - 69 m³/h (quantity: 2)
    2. Starting air compressor unit (2 x 100%) – 70 m³/h (quantity: 1)
    3. Starting air bottle – 4.8 m³ (quantity: 1)
  20. Scope of Supply – Compressed Air System Piping
    1. Piping and valves - compress air system, pipes route between day tank area and (quantity: 1)
    2. Piping and valves - compress air system, day tank area (quantity: 1)
    3. Piping and valves - compress air system, engine hall area (quantity: 1)
    4. Piping and valves - compress air system, outdoor auxiliary area (quantity: 1)
  21. Scope of Supply – Cooling System
    1. Set cooling horizontal remote radiators (quantity: 2)
    2. Set cooling radiators ladder and railings (quantity: 1)
    3. Set cooling radiator legs (quantity: 1)
    4. Low temperature circuit expansion vessel - 600 l (quantity: 2)
    5. Maintenance water tank unit - 6 m³ (quantity: 1)
    6. High temperature circuit preheating unit (mounted on the engine auxiliary module) (quantity: 2)
    7. Low temperature thermostatic valve (mounted on the engine auxiliary module) (quantity: 2)
    8. High temperature thermostatic valve (mounted on the engine auxiliary module) (quantity: 2)
  22. Scope of Supply – Cooling System Piping
    1. Set of piping and valves - insulated, cooling system engine hall (quantity: 1)
  23. Scope of Supply – Intake Air System
    1. Charge air filter - combined oil wetted and dry (quantity: 2)
    2. Rain hood for charge air filter (quantity: 2)