Rancangan PLTT Supercritical
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Transcript of Rancangan PLTT Supercritical
Perancangan Pembangkit Listrik Tenaga TermalPerancangan Pembangkit Listrik Tenaga Uap 2x600 MW
Tahun Comissioning : 2020Jenis Pembangkit:
SupercriticalJumlah UnitUkuran Pembangkit: 2 x 600 MW NetFrekuensi:
50 Hz, 3000 rpmSteam Turbine Type:
Single reheat condensing (3000+3000, 3000+3000, 3000)Boiler feed pump:
Electric motorFeed water heater:
Number of FWH : 7 Boiler feed pump position (setelah 4 LPH)
FWH option Type:
o Contact Heatero Flash back heater with drain coolero Flash back heatero Pump forward heatero Eksternal drain cooler-flash typeo Eksternal drain cooler-liquid phase
Specification Modeo Feedwater exit temperature dictatedo Feedwater exit temperaturelimitedo Source pressure set by feedwater exit temperature
Site Condition:
Ambient temperature : 31oC Altitute : 16 m/ 52 ft Ambient pressure : 1 atm Ambient relative humidity : 60 Ambient wet bulb temperature Makeup water temperature : Site cooling water temperature : 26,1
Site allowable cooling water temperature rise (lihat UU lingkungan ttg limbah bahang)
Fuel:
PT Bukit AsamPerusahaan ini menghasilkan berbagai produk batubara dengan kualitas konten berbeda,yaitu:
Jenis Fuel yang di pilih :
Coal Brand = BA 70 HS Heating value/Calorific Value= 7.000 kcal/kg
ultimate analaysis = Proximate analysis = Other property (HGI) = 55 Ash Analysis = Ash Characteristic =
Cooling system type: Water cooling with natural draft cooling tower (no stack)
Other auxiliaries: (many) Steam jet air ejector Desuperheating source for process steam
Piping loss assumption (many:HPT inlet Cold Reheat, hot reheat, LP cold/hot reheat, SAHTR (steam air heater) heating pipe, dll.)
Pressure (%) Enthalpy (kJ/kg)
Miscellaneous assumption: Miscellaneous plant auxiliary load (% of gross power) Constant plant auxiliary load (kW) Power transformer loss (% generator power) Dll.
Site charcteritic: Climate (tropical, cold,…) Length pipe (to cooling tower, to water source, makeup water, dll) Soil classification
Stack: concrete , tinggi : 195 mRegional CostCooling condenser:
water fresh water
pressurevacuum 0,0832 bar abs
tube material and type seam welded
non condensable removal steam jet air ejector
Hotwell condensate storage requirement (minute)
Head loss in cooling water piping (m)
Cooling water pipe materialTitanium
Inlet Cooling water Temp26,1 0C
Outlet Cooling water Temp33,1 0C
Circulating water flow 1,780 m3/min
Number of tubes34,047
Tube Surface area27,523 m2
Steam turbine input and portGeneratorType : 3 phase synchronous gen. totally enclosed◦ Stator Wind. Cool. : Direct water cooled◦ Stator Core Cooling : Hydrogen cooled◦ Rotor Wind. Cool. : Direct hydrogen cooled
◦ Excitation System : Static excitation with thyristor rectifier◦ Active Power : 721.8 MW◦ Apparent Power: 802 MVA◦ Power Factor 0.9 (lag) –0.95 (lead)◦ Voltage 22.8 kV◦ Speed Rotation: 3,000 rpm◦ Frequency : 50 Hz◦ Rated H2 Pressure: 4.12 bar
Generator TransformerRated power : 786 MVA at 65 oC winding temp.◦ Phase : 3◦ Voltage : 22.8/525 kV◦ Vector Groups : YNd11◦ Cooling : ODAF◦ Tap Changer : NO-LOAD, + 5 %, 5 stepsElectricalSteam leakFWH PumpBoiler
Supercritical Temperatur : 571 oC Tekanan : 25,5 MPa
Water plant and WWTP option
WWTP option
Fire protection Neutralize & pretreated tankSea Discharge
WATER INTAKE
WATER DISCHARGE
Environtment (ESP, FGD)economic