BANGLADESH POWER DEVELOPMENT BOARD TENDER ... - BPDB

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12. FUEL OIL SYSTEM AND HANDLING FACILITIES12.1 Fuel systemAt present HSD (High Speed Diesel) will be used as fuel along with natural gasfuel. So provision of dual fuel system (Liquid fuel system and natural gas fuelsystem) shall be made in the fuel system of gas turbine unit.12.1.1 Liquid Fuel oil systemThe unit shall be provided with liquid fuel oil system. The liquid fuel oil systemshall have the necessary heating arrangement, pressure regulating valves, shutoffvalves, pipes, pumps, metering device, pressure gauge and other indicatinginstruments. The liquid fuel system shall be provided with necessary protectiveequipment for proper control and safe operation of the unit.The distillate fuel oil system shall consist of two pumps (One standby, oneoperative) of suitable capacity for the maximum output of the turbine at lowestambient temperature at the site, along with necessary valves, piping, regulatingdevices, metering device, instrumentation, pressure switches and indicators.Scope of supplyOne distillate fuel supply system shall include, at least, the following equipment:-One off-base standardized forwarding skid consisting of the pumping andregulating equipment- One off-base standardized filtering (duplex cartridge type filterss) located nearthe unit-Piping between forwarding and filtering skid and from the filtering skid up to thegas turbine unit-Unloading Fuel skid-2 (Two) 50.00 lakh litre distillate fuel storage tank with fixed roof having floatingsuction type delivery (if existing tanks are not serviceable)-Piping from unloading area to fuel tank.-For unloading: Two 100% (100m 3 /h) transfer pumps + Filters-Piping between the 50.00 lac fuel storage tank and pumping skid-Fuel strainers-Flowmeter and totalise to measure fuel consumption-Pressure gauges on each side of fuel strainers, at pump suctions and discharge,and other critical points- Fuel oil pumps-Over speed and emergency trip stop valves-Control valves for starting and operating-Necessary isolation valves-All piping-Automatic control valvesGhorasal 200 MW to 300 MW Gas Turbine Peaking Power Plant Project (Vol-2 of 3)114
12.2 Liquid Fuel Handling systemThe contractor shall design, manufacture, inspect, test, deliver to the site andinstall of liquid fuel oil handling, conditioning and regulating facilities with allaccessories as specified hereunder for the plant.The unit shall be furnished with a complete liquid fuel oil system. The liquid fueloil handling system shall also be provided.12.2.2 Fuel forwarding skidFuel forwarding skid brings liquid fuel to the gas turbine at a pressure consistentwith the gas turbine fuel supply requirements.Equipment list:-Two (2) 100% fuel forwarding AC motor driven centrifugal pumps (one duty, onestandby), each for the maximum fuel flow necessary to the gas turbine-Three suction Strainers-One fuel pressure regulating valve-One relief valve-Complete set of piping including valves, gauges and fittings of all linesterminating at the skid boundary12.2.3 Fuel oil filters SkidThis unit provides liquid fuel filtration up-stream the unit turbine and includes thefollowings:-Two fuel filters (one duty, one standby) : Filter cartridge -5 microns-One pressure metering panel board including : one manostat (fuel pressurecontrol), one different pressure gauge-One fuel accumulator-One stop valve-Complete set of piping including valves, gauges and fittings of all linesterminating at the skid boundary12.2.4 Fuel storage tankThe fuel storage tank is a vertical with fixed roof tank. Its capacity of each Tankshall be minimum 50.00 lac litre if existing tanks are not serviseable. The fuelstorage tank will be assembled in site and includes the followings:-One fuel inlet flange-One fuel outlet flange with floating suction-Two manholes located in shell and in roof-Two foam chambers for fire protections-One visual level gauge-Various levels switch to provide alarm at subsequent level-one gas vent-One water drain-One spiral stairway and one top peripherical handrailing12.2.5 Unloading Fuel skidRequired piping, along with, other facilities that will be required for the systemGhorasal 200 MW to 300 MW Gas Turbine Peaking Power Plant Project (Vol-2 of 3)115
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Volume - 2Technical RequirementsSec
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GHORASAL 200 MW to 300 MW GAS TURBI
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2. Scope Of Work2.0 Scope of work2.
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3. Generator switchgeara. Outdoor e
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Rated frequency: 50 HzRated nominal
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Lighting impulseWithstand voltage(1
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h. One (1) Lot Control and instrume
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2.13 TestsThe Contractor shall be r
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Section 3Power Plant ArrangementGho
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3.0 Power Plant Arrangement3.1 Gene
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3.3.2.4 Compressor Wet Washing Syst
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The distillate fuel oil system shal
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6. Sump tankThe sump tank allows dr
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provide necessary protection for ma
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4. Generator And Ancillary Equipmen
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4.1.4 Temperature RiseThe temperatu
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4.1.12 Accessoriesa. Temperature de
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- Secondary wiring including cable
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4.3.6 Voltage TransformerThe voltag
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3) The rated service voltage shall
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Section 5TransformersGhorasal 200 M
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5. TRANSFORMERS5.1 GENERALThe trans
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. The tank shall be of the welded s
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The wiring shall be connected at th
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5.3 UNIT AUXILIARY TRANSFORMER5.3.1
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h. Anchor devicei. Oil preservation
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6. 230 kV OUTDOOR SWITCHGEAR, EQUIP
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-Power frequency withstand voltage(
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eaker.(6) Dielectric Test Voltagea.
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. Rated insulation level- Lighting
Page 64 and 65: f. Unless otherwise specified, the
Page 66 and 67: 6.3.2 DESIGN CRITERIAThe steel stru
Page 68 and 69: 6.4 INSULATORS AND WIRING MATERIALS
Page 70 and 71: Section 76.6 Kv SwitchgearAndLow Te
Page 72 and 73: 7. 6.6 kV SWITCHGEAR AND LOW TENSIO
Page 74 and 75: - Number of circuit :Determined by
Page 76 and 77: Section 8Control And ProtectionGhor
Page 78 and 79: 8. CONTROL AND PROTECTION EQUIPMENT
Page 80 and 81: - Automatic synchronising equipment
Page 82 and 83: ee. AVR failure xff. Emergency Trip
Page 84 and 85: can be seen through the window with
Page 86 and 87: Required no. of 6.6 kV and 415 V vo
Page 88 and 89: 8.10.3 CONTROL EQUIPMENT(1) Transmi
Page 90 and 91: The test block shall be of the back
Page 92 and 93: Section 9Cabling And GroundingGhora
Page 94 and 95: 9. CABLING AND GROUNDING9.1 GENERAL
Page 96 and 97: 9.2.4 CONTROL AND INSTRUMENT CABLES
Page 98 and 99: 9.4 CABLE ERECTIONConcrete lined ca
Page 100 and 101: Section 10DC Power Supply SystemGho
Page 102 and 103: 10 DC POWER SUPPLY SYSTEM10.1 BATTE
Page 104 and 105: float charge as well as boost charg
Page 106 and 107: Section 11Lighting And Small Power
Page 108 and 109: 11. LIGHTING AND SMALL POWER SUPPLY
Page 110 and 111: (ii)Three phase plug socketOutdoor-
Page 112 and 113: Section 12Fuel Handling FacilitiesG
Page 116 and 117: from unloading base to the fuel tan
Page 118 and 119: 13. FIRE PROTECTION FACILITIES13.1
Page 120 and 121: System of lock off to (but not exit
Page 122 and 123: Section 14Communication FacilitiesG
Page 124 and 125: 14. COMMUNICATION FACILITIES14.1 GE
Page 126 and 127: (2) General CommunicationWhen the o
Page 128 and 129: (1) BatteryType of batteryCapacityN
Page 130 and 131: 15. MAINTENANCE FACILITIESPage15.1
Page 132 and 133: 15.1.4 RATINGThe rating of the cran
Page 134 and 135: The main power supply shall have a
Page 136 and 137: Static tests of all automatic seque
Page 138 and 139: Section 16Tests And InspectionsGhor
Page 140 and 141: 16 TESTS AND INSPECTIONS16.1 GENERA
Page 142 and 143: subjected to the following tests by
Page 144 and 145: c. Stranded Conductors for Overhead
Page 146 and 147: days from the receipt of the said n
Page 148 and 149: circuit of unit motor control centr
Page 150 and 151: Special measures may have to be tak
Page 152 and 153: Checks shall be made of the local a
Page 154 and 155: Section 17Civil WorksGhorasal 200 M
Page 156 and 157: 17.9 Sewage Works17.9.1 General17.9
Page 158 and 159: 17.1.4 SITE LABORATORYThe Contracto
Page 160 and 161: where directed by the Board extra s
Page 162 and 163: approval regarding the re-measureme
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igidly in position down to the lowe
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on piles together with the apparatu
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than 15 cm in size containing suita
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aggregates shall be washed prior to
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17.6.13 FORMWORK AND TIMBERINGFormw
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he Contractor shall repair at his o
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Sieve designationPercentage by(Squa
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(b) Transverse Joints: The transver
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17.7.2 Gravel SurfacingThe Contract
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extended with sufficient number of
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A written record of the drilling in
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) Control EquipmentThe control equi
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17.12.2 GatesSliding metal gates of
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18 Building WORKS18.1 General18.1.1
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18.1.4 RecordsThe Contractor shall
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FrameRoofExterior wallPartition wal
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18.5 Materials And Workmanship18.5.
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(7) PaintPrior to delivery after sh
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oof cladding shall be less than 1.1
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. Wooden doorsPlywood for panelThic
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The terrazzo is to be trowelled to
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to suit. Stud shall be formed of ap
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Section 19Spare PartsGhorasal 200 M
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19. SPARE PARTS19.1 GENERALThe Cont
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BACKGROUND INFORMATION:Bangladesh P
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- Overhauling of all electrical mot
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3. BASIS OF PRICE3.1 Basis of price
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the delayed services or such other
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13. GENERAL CLAUSES CONCERNING TERM
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17. INSURANCEThe insurance includin
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Appendixes20.1 Site Layout20.2 Grid
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BANGLADESH POWER DEVELOPMENT BOARD TENDER ... - BPDB

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