250MW COMBINED HEAT & POWER GENERATION PLANT
2 Identical Units – 125 MW Electric / 145 MW Heat Transfer
Year of manufacture: 1980
Operating hours: 160,000 h approx.
Special features: - New Generator protection inside
- preserved with dry air since shut down
- able to modify for coal- firing
Feed water vessel
Quantity: 1 unit
Capacity: 120 m3
Design pressure: 25 bar
Design temperature: 210 C
Steam boiler: Babcock Benson Steam Boiler
Type: Oil or gas
Quantity: 2
Output capacity 365 t/h
Design Pressure 205 bar
Design temperature 540 C
Operation of HP 182 bar / 535 C
Operation of IP 58 bar / 540 C
Fuel medium: Natural gas or light fuel oil
Turbine
Type: Condensing- turbine /Siemens
Output capacity 2x 128 MW
Life steam flow nominal /max: 365 t/h
Operating conditions HP: 182 bar / 535 C
Operating conditions IP: 58 bar / 535 C
Operating conditions LP: 3 bar / 240 C
Generator
Type: Siemens
Active Power: 2 x 128 MW
Nominal Voltage: 10.5 kV +/-5%
Nominal speed: 3,000 rpm
Condenser: Cooling Water outlet
Condensate pump, P1a/b
Qty of pumps: 2 + 2
Discharge quantity: 225 m3/h
Discharge pressure: <20 bar
Feed water pump, P2a/b
Discharge quantity: 225 m3/h
Discharge pressure: <200 bar
Calculation
Straight condensing mode: Cooling water temp.
Auxiliary equipment
All safety and control systems, for safe operating
Condition of the equipment: Good condition
material test during last revision: no material aging or critical parts
Location: Europe
Originally the boiler was designed for coal and can realitvely easy be converted to coal. The waste incineration plant with a capacity of 40 t/h was transfered to a different location. The main boiler was either used alone or in line with the incineration boiler which warmed the feed water. It is possible to add another waste incineration system with a waste heating factor Hu 1,000 – 2,000 kcal/kg
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