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BOILER GENERAL INFORMATIONTIN THANH 2014ANNEXUREDESCRIPTION1.PRODUCT FEATURES & ADVANTAGES2.DESIGN BASIS3.SCOPE OF SUPPLY & SERVICES4.PERFORMANCE GUARANTEESINDEXPRODUCT FEATURES & ADVANTAGESPRODUCT FEATURES & ADVANTAGES1. Low pollutant, firing completely.2. Additional furnace for longer residence time resulting in complete combustion and minimum carryover of fly ash.3. Boiler is designed to start with Light Diesel Oil.4. Machine welded membrane wall gas tight furnace.5. Strategically located Secondary air injection for creating turbulence to ensure complete combustion of Sawdust and for reducing carryover of fly ash, reduce un-burnt carbon loss & emissions6. Three pass boiler bank are arranged for efficient heat transfer with low flue gas velocities for reducing erosion.7. No moving parts inside the hot furnace.8. Ability to handle NOx and clinker-formation

DESIGN BASISDESIGN BASISNOPARAMETTERSUNITVALUETYPE OF BOILER-SUSPENSION BIOMASS BURNER BOILER(SBBB)NUMBER OF BOILERSTHREE1.0Capacity1.1Maximum Continuous Rating (BMCR)Lbs/hour44,0801.2Boiler turn down1:32.0Pressure2.1Steam Pressure at Stop valve outletpsi1502.2Design Pressurepsi2503.0TemperatureSteam temperature at main Steam Stop valve outlet0FSaturated steam99% (366 0F)Feed water temperature at economizer inlet for BMCR generation.0F230Flue gas temperature leaving Air Pre-heater at MCR0F320DESIGN BASIS4.0Fuel4.1Analysis of FuelSawdust4.1.1Ultimate analysis of FuelBy Weight4.1.2Quantity of Sawdust to be fired dry solidslbs/hr7550 /each boiler1Carbon%39.62Hydrogen%5.23Oxygen%34.44Sulfur%0.045Nitrogen%0.286Ash%0.487Moisture%208Gross colorific value (HHV)Kcal/kg37009Fuel sizingBelow 3mmDESIGN BASIS5.0EMISSION DETAILSUNITVALUEHg contentLb/TBtuComply to USA standardHCl contentLb/MMBTuCO @3% O2ppmPM (Particulate Matter)Lb/MMBtu6.0Feed water analysis at the inlet of economizerComply to USA standard7.0Blow down7.1Continuous blow down%3.07.2Intermittent blow down (once in 8 hours)%5.08.0BOILER WATERComply to USA standardDESIGN BASIS9.0Utilities9.1Electric PowerFor LT motor UP TO 900KWVoltageV480FrequencyHz60Combined variation of voltage and frequency%Max 5TypeAC, 3 phase, 4 wire9.2Electric powerFor instrumentation (field switches, Level gauge illumination, solenoid valve, etc)VoltageV24FrequencyHz-TypeDCFor instrumentation (field transmitters)VoltageV24DESIGN BASIS9.3Instrument airPressure (Min / Normal / Max / Design)Bar(g)60/90/100/120Temperature0C or 0FAmbientQualityDry & Oil freeDutyFlame scanner, ash conveying9.4COOLING WATERSupply Pressure (Min / Normal / Max / Design)Psi40/40/90/100Return Pressure (Min / Normal / Max / Design)Psi30/30/70/90Supply Temperature (Min / Normal / Max / Design)0F50/60/105 /115 Return Temperature (Min / Normal / Max / Design)0F105/120/140 /170 QualitySoftDutyBurner cooling, ID Fan CoolingDESIGN BASIS10.0Site conditions10.1City / Village nameMinnesotaCountry of installationUSA10.2Ambient air TemperaturesActual ConditionMinimum / Normal / Maximum / Design0FFor Performance0FFor electric design0F10.3Relative humidityActual ConditionFor Performance%Minimum / Normal / Maximum / Design%10.4SEISMIC DESIGNActual ConditionBasic horizontal seismic co-efficientImportance factorSoil condition factor10.5 Design wind velocityft/hrActual Condition10.6Boiler locationIN-DOORESP LocationIN-DOOR11.0Number of boilersTHREEDESIGN BASIS12.0Major codes12.1DesignPressure partsASME Section 1PipingASME B 31.1, 31.3Burner protection systemVendor standardFansVendor standardElectrical motorsUSA StandardProcess valvesVendor standardBoiler performance testingASME PTC 4.0 ENERGY BALANCE METHOD12.2MaterialsBoiler pressure partsASMEStructuresUSA StandardOthersVendor standard12.3MANUFACTURINGPressure PartsASME SECTION-1Stamp for boilerAccording legal requirementNon pressure partsVendor StandardSCOPE OF SUPPLY & SERVICESCOPE OF SUPPLY & SERVICENoDescriptionBy ABy BRemarks1.0Main Boiler BodyY2.0FurnaceY3.0FINAL STEAM OUTLETY5.0FEED WATER SYSTEMY5.1DEAERATORY5.2BOILER FEED WATER PUMPSY5.3Boiler feed water control stationYSCOPE OF SUPPLY & SERVICE6.0Boiler draught systemY6.1FD Fan Y6.2ID fanY6.3Fuel Feeding Fan FF FanY6.4Suspension FanY6.5Increasing Oxygen FanY6.6Blow Ash FanY6.7Suck Ash FanY7.0BIOMASS BURNERYDesign by A8.0FUEL FEEDING SYSTEMY9.0Economizer Modular formY10.0Air Pre-heaterYIn Modular form11.0Multi CycloneY12.0ELECTRO STATIC PRECIPITATOR (ESP)YDesign by BDuly fabricated & supplied in knock down conditionSCOPE OF SUPPLY & SERVICE13.0Air Ducting 4mm and Flue Gas Ducting 5mm thickness along with stiffenersY14.0HoppersY15.0STACK (Chimney)Y30 meters height steel chimney, free standing.16.0Blow down tankY17.0CHEMICAL DOSINGY18.0COOLING WATER SYTEMYUse for cooling Burner 18.1Cooling Water PumpsY18.2Cooling water tankY19.0Ash discharge system (dense phase pneumatic conveying) Y20.0PipingYAll piping will be seamless21.0REFRACTORYY22.0Insulation & Cladding forY23.0Electrical systemY24.0Instrumentation systemYAs per P&ID Diagram25.0CIVIL WORKYPERFORMANCE GUARANTEESPERFORMANCE GUARANTEESNo.DescriptionUnitValue1Steam output at the outlet on sawdust firing Lbs/hr44,0802Main steam pressure at main stop valvePsi2503Main steam temperature at main steam valve outlet0FSaturated 99.5% dry4Boiler thermal efficiency at 100% MCR output while firing performance guarantee fuel as listed in design basis%90TIN THANH 2014