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