COMPLETE POWER PLANT, 66 MWEL HARD COAL FIRED
This power plant with one line 60 MWel started its commercial operation in 1967. The plant design was for base load with local lignite fuel. In 1985 the steam turbine was equipped with a 0 - 100 % extraction for 114 °C / 80 °C district heating for up to 20 MWth. In 1997 the power plant was modified and refurbished to use hard coal fuel, the power output increased from 60 to 66 MWel. System efficiency of power generation was measured in 1999 with 33,39 %.
Owner did a remaining life time assessment with the result of > 10 years without major investment but permanent maintenance and component control. Detailed revision reports are available. Plant was shut down on 24.04.2008 based on the commissioning of a new 400 MWel Gas Turbine Combined Cycle and is hold in cold reserve. Total operating hours were 231.000 with OEM recommended maintenance/repair/overhaul. Coal transport system with covered conveyor belts from rail car unloading via intermediate storage to boiler is available.
Technical data
Boiler
Manufacturer Simmering-Graz-Pauker (SGP)
STEINMÜLLER for modification and refurbishment in
1997
Thermal cycle type forced circulation, two pass design.
Desing hanging in heavy steel construction
Max. hight above ground 44 m
Max. continuous rating 240 t/h
Max. pressure rating 110 bar
Live steam conditions 90 bar, 530° C
Min. Boiler load 50 % operational
Fuel Hard Coal
Lower Heating value 25.500 to 31.500 kJ/kg
Average Water content 6 to 10 %
Sulphur content 0,4 %
Ash 5 to 14 %
Volatiles 25 to 40 %
SiO2 in ash 32 to 60 %
Hardgrove 45 to 60
Firing Tangential coal dust firing on 3 levels each 4 burners
Ignition Natural Gas and HFO burners
Casing Bricklined walls
Slag removal Wet
Air preheating 2 x LJUNGSTROEM type
Fresh air blower 2
ID fan 1
Flue gas quantity 310.000 Nm³/h dry
Flue gas temperature 95 °C
Boiler efficiency measured 92,44 %
Coal Feeding
Underground silo with chain conveyor 300 t/h
Belt conveyor to day bin 130 t/h
Chain conveyors to feed 2 x 130 t/h
Coal Mills
Manufacturing 1997
Manufacturer ALSTOM/EVT
Type Bowl Mill SM 14/9
Number of Mills 3
Rated capacity 9,2 t/h each
Coal mill motors 160 kWel each, 5 kV
Motor Rpm 985
Coal Mill Air Blower
Rated Air Volume 8,6 m³/s
Rpm 1.480
Power 132 kW
Dust control
Manufacturing 1985
System Electric Precipitator
Arrangement Double 2 Zone
Active area 5.400 m²
Filtering 99,81 %
Voltage 2 x 96 kV
Ash extraction pneumatic
Dust in flue gas < 30 mg/m³
Desulphurisation
Manufacturing 1993
System Rotating spray absorber with injection and wet sorption
Additive for desulphurisation Limestone
SO2 in raw gas design max. 4.000 mg/m³
SO2 cleaning efficiency > 90 %
Flue gas temperature into stack 85 – 90 °C
Steam turbine
Manufacturer BBC (ALSTOM)
Casing 1 x HP, 1 x LP double flow
Max. continuous rating 66 MW
District heating rating 57 MW
Live steam conditions 89 bar, 525 OC
Vacuum at 50 MW and 20 °C Water 0,047 bara
Condenser
Cooling surface 3.270 m²
Cooling water flow 7.500 m³/h
Tube material 70 % Cu, 29 % Zn, 1 % Sn
Number of tubes 6.400 22/24 mm
Length of tubes 6.500 mm
Feed pumps
System 2 x 50 % electric driven, 6 stages, variable RPM by
VOITH hydraulic coupling.
Manufacturer of Pumps KSB
Rating 276 t/h
Pressure 128 bar
Manufacturer of feed pump motors ABB
Rated power 1.500 kWe each, 5 kV
Synchronous Generator
Manufacturer BBC (ALSTOM)
Generator capacity 75 MVA
Voltage 10,6 kV +/- 5 %
Power factor 0.8
Speed 3 000 rpm
Exciter 250 V, 1.450 A
Cooling H2
Step-Up Transformer
Manufacturer ELEKTRO-BAU A.G.
Rated power 75.000 kVA
Voltage 10,5 / 117 kV
Consumption Transformer
Manufacturer SIEMENS / Wiener Starkstrom Werke
Rated power 8.000 kVA
Voltage 10,5 / 5 kV
Process Control System
Installed in steps 1993 – 1997
Manufacturer SIEMENS
Type Teleperm M
Operating System
Installed 2003
Manufacturer ETM
Type PVSS
Auxiliaries
All auxiliaries for safe operation of the plant are available, including turbine and generator control, fuel system, cooling water system, deionisation plant, etc. and a remarkable lot of spare parts are available.
Documentation
Complete documentation, operation manuals, maintenance reports, log books. etc. is available in the plant.
Ref : 11229
MAN B&W - LEROY SOMER - DIESEL GENERATOR PLANT 7 MWEL / 4.5 MWTH
Engine
Manufacturer: MAN B&W
Type: 12 V 40 / 45
Commissioning Date: 2001
Electrical Output: 7260 kWmech, 6970 kWel
Operating Hours 21.000 h
Fuel: HFO / Diesel
Optional vegetable Oil
Fuel Consumption: 189 g/kWh
at HFO100% load
Cylinders: 12 in V
Speed: 600 rpm
Alternator
Manufacturer: Leroy Somer
Type: LSA 60.95/10P
Rating: 8712 kVA
Voltage: 600V
Cos φ: 0.8
Frequency: 50 Hz
Speed: 600 rpm
Steam Boiler
Thermal Production
Heat Recovery Power:
Thermal Output: 4557 kWth
Steam: 3.5 t/h
8 bar
175°C
Hot Water: 34 m³/h
65 °C
HFO Burner Power:
Thermal Output: 4433 kWth
Steam: 6.5 t/h
8 bar
175°C
Ref : 11231
294 MW SUPERCRITICAL STEAM BOILER TURBINE GENERATOR UNIT THAT OPERATES ON COAL
This sale features 2 of 7 units:
• Unit 1 is a 294 megawatt (MW) supercritical steam boiler-turbine generator unit that operates on coal
• Unit 2 is a 294 megawatt (MW) supercritical steam boiler-turbine generator unit that operates on coal
Ref : 2123
GE 9 MW LM1500A GAS TURBINE GENERATOR
Featuring
1 – 9 mW LM1500A Gas Turbine Generator
Engine Make: GE
Generator End Make: IDEAL ELECTRIC
Model: 9 MW Continuous
Model Year: 2001
Hz: 60
KW: 9000
Phase: Three Phase
Fuel Type: Dual Fuel
Serial#: 1274NGT
Unit#: 45330
Description: LM1500, 9 MW Continuous, Continuous Rating, Three Phase, 60 Hz, Ideal Electric, Generator End, Housing Type SAE, Engine Model LMA1500, Engine Serial # 1274-NGT, # of Leads: 6, Reconnectable, Alternator 13800 Volts, Zero-hour, never been installed. Currently configured for natural gas.
LM1500A Gas turbine – complete with the following equipment:
• Bellmouth
• Bullet nose
• Gas turbine complete with fuel nozzles and manifolds for natural gas firing and metering valve for diesel fuel firing
• Power turbine
• Lubrication system components
o Lube supply manifold
• Instrumentation:
o (2) Gas turbine speed sensors (magnetic pickup type)
o (2) Power turbine speed sensors (magnetic pickup type)
o (11) Power turbine inlet temperature probes (Chromel/Alumel type)
o (1) Gas generator vibration sensor (accelerometer type)
o (1) Power turbine vibration sensor (accelerometer type)
o (1) Oil supply temperature sensor (RTD single-element type)
o (5) Oil scavenge temperature sensors (RTD single-element type)
o (1) Lube oil supply pressure sensor
o (1) Scavenge oil pressure sensor
o (2) Pressure sensors for compressor discharge pressure
o (1) Power turbine inlet pressure sensor
• Single ignition system (igniter, high-tension cable, exciter)
• Inlet screen kit
• Weather/sound enclosure (fire and gas detection systems included in gas turbine enclosure)
• Fire detection/suppression system (for gas turbine enclosure)
• Gas detection system (for gas turbine enclosure)
• Gas turbine skid and separate generator/gearbox skid
2. (1) Gearbox and coupling
• Lufkin Gears parallel horizontal offset gear box designed for input speed of 5500 rpm and output speed of 1800 rpm
• Coupling Corporation of America Flexxor 400C high speed diaphragm coupling
3. (1) Generator
• Ideal Electric “SAB” horizontal brushless air-cooled AC generator rated for 13.8 KV @ 60 Hz (1800 rpm); with integral lube system
• Voltage regulator cabinet (NEMA 12)
4. (1) Control package
• Turbine monitoring and control package based on MicroNet Series control system with non-redundant processor
• NEMA 12 cabinet housing vibration monitor and control system
• Vibration monitor
• Synchronizer
• Gas shutoff, control and vent valves (to be piped at site)
5. (1) Lube system and starter skid
• Lube oil reservoirs, duplex filters, pumps, local indicators, temperature regulation, cooler
• Electric/hydraulic starter system
• On-board motor starters
6. (Lot) Switchgear
Unit will be supplied with isolation breaker cubicle complete with generator protection relays, power monitoring displays.
7. (1) Documentation Package
• Installation Design Manual
• Operation and Maintenance Manuals
8. (Lot) 480 VAC Power Distribution Center.
Power distribution center to be supplied for isolating disconnects of all auxiliary skid motors, enclosures, etc.
1 - Waukesha – 4.2 mW – Continuous NG Power CoGeneration Plant, with Absorption Chiller and Waste Heat Recovery Heat Exchangers
ENGINE AND COGENERATION UNIT SPECIFICATIONS2 - WAUKESHA 2100 KW NATURAL GAS GENERATOR SETS, with absorption chiller and exhaust heat recovery system. These can run a small community or a large campus easily and efficiently.
Engine Make: Waukesha
Generator End Make: KATO
Model: 2100 kW
Model Year: 2004 (Never installed and unused)
Hz: 60
KW: 2100
Phase: Three Phase
Fuel Type: NG
Serial Numbers: C94554/1 and C94554/2
Unit Number: 84160
Description: Waukesha, 2100 kW, Continuous Rating, 1215 Amps @ 7200/12470 Volts, Three Phase, 60 Hz, KATO Generator End, Generator End Model AA27493000, Generator End Serial#: 16421-01, Housing Type Open, Engine Make Waukesha, Engine Model 12V-AT27GL, Engine Serial # C945542, 2625 kVa, # of Leads: 6, Non-Reconnectable, @ 900 RPM, Auto Start/Stop, Safety Shut Down, Air Cleaner, Muffler, Generator Panel, Digital, Engine Panel, Digital, Skid Mounted, 2 identical 2100 kW Waukesha's Overall Dimensions 355" L x 96" W x 133" H, Overall Weight (Lbs) 115000
Brand new 2004 natural gas generators with zero hours!
• The robust construction of this Cogeneration Plant are comprised of two (2) complete 2100 kW engine/generators
• Exhaust heat recovery system and absorption chiller
• Meets all the California EPA/emissions and sound requirements
• Recent emissions and load bank testing confirms that units exceed typical emissions standards (reports available upon request)
• Complete OEM installation and maintenance documentation included
• Engines are equipped with SCR's and urea injection systems
GENERATORS: 2 – End Models: KATO Engineering Inc.
Model # 8P10.5-4200 2/3 pitch generator rated 2100kW / 2625 KVA
Serial Numbers: C94554/901/1 and C94554/901/2
Model Details: Model 8P10.5-4200, 2955@2204 kW HP,
@900 RPM, 2/3 pitch generators rated 2,100 kW /2625 kVA.
Class F 105 Degrees C rise. Voltage Rating of 12,470 Volts, 3 Phase, 60 Hz. 0.8
Leads: 6, Non Reconnectable,
Controls: Auto Start/Stop Safety Shut Down, Air Cleaner, Muffler, Digital Panel, Digital Engine Panel, Skid Mounted
More Details: Power Factor. Generator is six wire WYE connected equipped with a PMG. The enclosure is TECF with top mounted air to air heat exchanger with stainless Steel Tubes. Side mounted High Voltage Terminal box with differential and cross current compensation CT’s. 100 ohm winding temperature, bearing temperature and air discharge RTD’s. Generator bearings are self lubricated with onboard lube pump, oil cooler and filtration system. Generator controls including voltage regulator, var/pf controller and synchronizer. Avtron 200 amp, 40 ohm, 10 second neutral grounding resistors.
Shipping Weight 36,000 pounds.
ABSORPTION CHILLER: Trane – Model ABSD) 800H Horizon
Single Stage absorption Chiller,
Rated: 781 tons, 460 Volt, 60 Hz
Water Flow Rates:
Hot Water Flow rate: 1,442 GPM @250 – 230 F.
Chilled Water Flow rate: 1245 GPM @59 F / 44 F.
Copper tube Heat exchangers in the evaporator, condenser and absorber sections
Trane UCP2 Chiller Control Panel with all monitoring, control and protection functions.
VFD controlled solution pumps. Hot water and cooling water flanged connections
Shipping Weight: 34,843 pounds.
WASTE HEAT RECOVERY / SCR UNITS –
(2) Exhaust Heat Recovery Heat Exchangers
Vapor phase ECXW-Model #5411-2
Exhaust Flow Rate: 32619.00
Heat Exchanged: 3.5 MMBTU exhaust gas 3557 lb/hr liquid (demin water)
(2) SCR Exhaust Systems: Johnson-Matthey; 200 CPSI, Expected emissions of 0.15 grams/bhp-hr Nox and 0.6 grams/bhp-hr CO.
Exhaust Silencer: GT 6100 Super Critical Hospital Grade
Exhaust flow rate: 32619 (lb/hr) +/-6%.
Exhaust temp.: 700 Degrees +/- 75 Degrees
Expected sound reduction: 42dBA @ 250 Hz.
HEAT EXCHANGERS
(2) Aux. Water Heat Exchangers: Alfa Laval Model TS20-MFG Plate and Frame Heat Exchanger rated 2,592 MBH/hr. Shipping weight of 2,770 lbs.
(2) Waster Heat Service Heat Exchangers: Alfa Laval Model TS20-MFG Plate and Frame Heat Exchanger rated 6.500 MBH/hr. Shipping Weight of 2,530 lbs.
(2) Chiller Water Heat Exchangers: Alfa Laval Model M15-BFG Plate and Frame Heat Exchanger rated 6,500 MBH/hr. Shipping weight of 4,550 lbs.
ENGINE / GENERATOR CONTROLS AND SWITCHGEAR – Square D Modicon based control system including engine generator sequencing, Woodward 701A speed governor, Woodward Load Sharing Module, Synchronizer, voltage regulator and Var/PF control, Touchscreen HMI, Bently Nevada Vibration Monitor and all operating software. The 15 kV switchgear includes two 1200 A generator breakers and a 1200 A main breaker with a 1200 A, 15 kV isolation switch. Generator Protective Relay package. All instrument transformers with Powerlogic CM 4000 power meter included.
HEAT EXCHANGERS
(2) Aux. Water Heat Exchangers – Alfa Laval Model TS20-MFG Plate and Frame Heat Exchanger rated 2,592 MBH/hr. Shipping weight of 2,770 lbs.
(2) Waste Heat Service Heat Exchangers – Alfa Laval Model TS20 – MFG Plaste and Frame Heat Exchanger rated 6,500 MBH/hr. Shipping weight 2,530 lbs.
(2) Chiller Water Heat Exchangers – Alfa Laval Model M15-BFG Plate and Frame Heat Exchanger rated 6,500 MBH/hr. Shipping Weight of 4,550 lbs.
STARTING AIR SYSTEM:
Atlas Copco Model: GA30FF Air Compressor, Oil Injected Rotary Screw Type 40 HP, 142 CFM @ 175 psi.
(2) Air receiver: Vertical 1000 gallon 48” x 144”
ENGINE LUBE OIL SKIDS
(2) Lube Oil Skids – Includes lube pump, oil filters and shell and tube oil coolers
UREA INJECTION SYSTEM
(2) Urea Injection Skids – includes urea clay tanks, forwarding pumps and controls
Urea Storage Tank – 2500 Gallon Capacity
REMOTE ENGINE CONTROL PANELS
(2) Waukesha Engomatic Engine Control and Gauge Panels
EXHAUST PIPING COMPONENTS
Exhaust Y pipes, expansion joints, SCR Transition piping, urea injection run, and exhaust silencers and stacks
DESIGN DRAWINGS AND DOCUMENTATION
Complete design drawings and specifications of the Cogeneration Plant including bill of materials, major vendor information, specification sheets on all major components, proposed equipment layout drawings, schematics and P&ID drawings and single line diagrams
Ref : 2125
