STX-MAN, 8L27/38, 2640 kW, 720 rpm, 60 Hz, Diesel Generator Set (New)

STX-MAN Diesel Generator Set, Model 8L27/38, Power Output 2640 kW (2500 kW continuous)

1. General Principles

1.1 General Description

• Project: Power Station Project
• Stock new unit: 8L27/38 main generator set
• Quantity: 4 × 8L27/38 units

1.2 Design Standard

All related standards comply with the latest versions. The equipment is supplied according to:

• ISO standard / GB standard
• IEC standard
• MAN standard
• Manufacturer’s own standard

1.3 Design Operation Environment

• SO environment conditions

1.4 Unit and Language

• Technical documents and drawings include values in MPa/bar for pressure and °C for temperature.

2. Gen-Sets Main Performance Parameters

2.1 Technical Specification of Gen-Sets

Table 1: Nominal Maximum Continuous Rating

2.1.2 Diesel Engine Generator Mounting

• The diesel engine and generator are rigidly coupled and mounted on a common base frame.
• The base frame is resiliently mounted against the foundation.

2.1.3 Gen-Sets Nameplate

• Material: Brass
• Language: English

2.2 General Information of Engine

1. Engine Type: STXMAN 8L27/38
2. Cycle/Configuration: Four-stroke, inline, 8 cylinders
3. Bore/Stroke: 270 mm (10.63) / 380 mm (14.96)
4. Air Intake: Turbocharged and intercooled
5. Rated Power/Speed: 2640 kW at 720 rpm
6. Crankshaft Rotation: Clockwise (viewed from flywheel)
7. Air Intake Vacuum Requirement: ≤ 2.5 kPa (≤ 0.36 psi) at rated condition
8. Exhaust Back Pressure: ≤ 2.5 kPa (≤ 0.36 psi) at rated condition
9. Fuel Designation: MDO/HFO (HFO must satisfy ≤ 380 cSt/50 °C (122 °F))
10. Fuel Consumption (at rated condition): 195 ± 5% g/kWh (not including engine-driven pump)
11. Lube Oil Specification: SAE CF40 or better
12. Lube Oil Consumption (MCR condition): 0.8 g/kWh
13. Cooling Water Additives:
    1. The cooling water must include anti-corrosion and anti-cavitation additives.
    2. Indices of the treated cooling water must conform to the diesel engine manufacturer’s specification.

2.3 General Information of Alternator

1. Model: HFJ7 718-14K
2. Manufacturer: HYUNDAI
3. Capacity: 3125 kVA
4. Voltage: 450 V
5. Protection Degree: IP44
6. Ambient Temperature (rated): 50 °C (122 °F)
7. Rated Speed: 720 rpm
8. Frequency: 60 Hz
9. Power Factor: 0.8
10. Connection/Rating: Y / Continuous
11. Insulation Class: F

2.4 Rated Ambient Condition of Diesel Engine

1. Atmospheric Pressure: 100 kPa (≈ 14.5 psi)
2. Air Pressure: 60% (Note: original text unclear, possibly referring to relative humidity or partial pressure.)
3. Air Relative Humidity: 45 °C
4. Environment Temperature: 32 °C (89.6 °F)
5. Seawater Temperature: (Not fully specified in the text; user note.)

If actual ambient conditions differ from the above, the power and consumption must be adjusted according to the manufacturer’s standard.

2.5 Engine Overall Dimension and Weight

Table 2: Engine & Generator Set Dimensions and Weight

3. Generator Set Main Equipment Composition

(Scope of supply for each machine)

3.1 Basic Composition

• Body assembly, front box, back-end cover, oil pan, driving mechanism, cylinders, etc.

3.2 Fuel System

Standard Supply

1. Injection pump, high-pressure pipe, injection valve for each cylinder
2. Leakage alarm box for leaking oil, LAH42

3.3 Lubrication System

Standard Supply

1. Wet oil sump (in base frame)
2. Engine-driven lubricating oil pump
3. Plate-type lubricating oil cooler (stainless steel)
4. Electrically driven pre-lubricating pump
5. Duplex filter
6. Thermostatic 3-way valve
7. Lubricating oil centrifugal by-pass filter
8. Lubricating oil viscosity requirement: SAE 40 CD class
9. Connection for lubricating oil to/from separator
10. Lubrication oil overflow connection

3.4 Cooling Water System

Standard Supply

1. HT (high-temperature) and LT (low-temperature) cooling water system (two-string type)
2. Engine-driven H.T. water pump
3. Engine-driven L.T. water pump
4. Thermostatic 3-way valve (for H.T. water system)
5. Thermostatic 3-way valve (for L.T. water system)

3.5 Compressed Air System

Standard Supply

1. DC 24 V solenoid valve for local/remote start and emergency start valve
2. Air starter for engine starting, max. working pressure 1.0 MPa (≈ 145 psi)
3. Reduced pressure valve set (includes safety valve, filter, and pressure gauge), 1 set/engine—loosely supplied; the owner must supply up to 3.0 MPa (≈ 435 psi) compressed air. (Not included, optional)
4. Electric turning motor

3.6 Combustion Air System

Standard Supply

1. Turbocharger
2. Charge air cooler
3. Water washing connection for turbocharger compressor

3.7 Exhaust Gas System

Standard Supply

1. Gas outlet for vertical pipe connection (after turbocharger)
2. Dry cleaning connection for turbocharger turbine
3. Exhaust bellows between cylinder and exhaust pipe (with heat insulation cover), and between cylinder and turbocharger

3.8 Governor System

• Governor Type: Mechanical hydraulic governor (electronically controlled)

3.9 Control and Monitoring System

Standard Supply

1. Alarm and shutdown sensors in accordance with classification society standard and MAN standard
2. MAN control system, including:
   • Control module (for engine control, monitoring, and alarm)
   • Indication module (for displaying engine and safety system data)
3. Safety shutdown system for:
   • Overspeed
   • Low lubricating oil pressure
   • High cooling water temperature
   • Emergency stop
4. Note: Owner must supply two-way (redundant) DC 24 V uninterrupted power sources.

3.10 Alternator

Standard Supply

1. Model: HFJ7 718-14K
2. Brand: HYUNDAI
3. Voltage: 450 V
4. Frequency: 60 Hz
5. Power Factor: 0.8
6. Protection Class: IP44
7. Insulation Class: F

4. Standard Spare Parts (Not Included, Optional)

Below is the spare parts list for Generator Sets 8L27/38 (optional supply, not included by default).

Table 3: Standard Spare Parts

5. List of Standard Tools (Not Included, Optional)

Table 4: Standard Tools

QUANTITY available: 1