排气管压力降计算VIP免费

NotedbyGL:19.11.2004RefNo:133197-04Approvedby"SEATRADE"withletterdated:07.12.2004Approvedby"VEGA"withletterdated:1.MAINENGINE-100%MCR1.1ASSUMPTIONS1.1.1GeneralTypeofFuel=ViscosityofFuelν=DensityofFuel(max.)=991,00kg/m³GravityAccelerationg=9,81m/sec2AirDensity(ISO)at1013,25mbarand25°C=1,184kg/m³1.1.2MainEngineTypePower9.730kWSpeed428rpmmax.allowableExh.GasBack-PressuredHBPA=30mbar(=mbar*10,19746777mmHC/mbar)=305,92mmHC1.2EQUIPMENT1.2.1Exh.GasValuesafterMainEngineandbeforeHeaterExh.GasFlowat100%MCRandISOAmbientCondition(=q1*Ps1)Q1=72.473kg/h(=Q1/Ps1)q1=133000,00m³/hExh.GasTemperatureat100%MCRandISOAmbientConditiont1=375,00°CAbsoluteExh.GasTemperaturT1=648,00KExh.GasDensity=0,54kg/m³Exh.GasdynamicViscosity=2,86752E-05Ns/m²Exh.GaskinematicViscosity=1,56254E-05Ns/m²1.3MainSilencerDatawithsparkarrestornoNumbers=1pcs.Type=DiameterNominalDN=1.100mmBack-PressuredHs=40,00mmHC1.4.1Exh.GasHeaterDataNumbers=1pcs.Type=Capacityat100%MCR=1.100kWBack-PressuredHTH=148,00mmHCExh.GasInletTemperatur=369,59°CExh.GaslostTemperaturinHeater=17,00KExh.GasOutletTemperaturt2=352,59°CAbsoluteExh.GasTemperatur=625,74KAbsorption25dB(A)HFOMANB&W7L58/64IF700cStat50°C(-0,3°Cperlengthofpipebeforeheater)1115273152732931+t,,,=Ps111sρ•υ=η1T∆1t2TPROJECT4-931.01SCHIFFKOGMBHHAMBURGCV1100PLUSCalculationofExhaustGasPipeBack-PressureACCOMP.DRWG.:493101-096-212801CFρ)(1018,562,0171T=υ**rρPage1of20493101-095-210101B.xls/MainEnginePROJECT4-931.01SCHIFFKOGMBHHAMBURGCV1100PLUSCalculationofExhaustGasPipeBack-PressureACCOMP.DRWG.:493101-096-212801C1.4.1.1Exh.GasValuesafterHeaterExh.GasDensity=0,56kg/m³Exh.GasdynamicViscosity=2,80604E-05Ns/m²Exh.GaskinematicViscosity=1,5838E-05Ns/m²Exh.GasFlowafterHeater=128.401,07m³/h1.4.2CombinedExh.GasHeaterwithSilencerandSparkArrestorDataNumbers=pcs.Type=Power(85%)=kWBack-Pressure(chosen)dHTHS=0,00mmHCExh.GasInletTemperatur=0,00°CExh.GaslostTemperaturinHeater=0,00KExh.GasOutletTemperaturt2=0,00°CAbsoluteExh.GasTemperatur=0,00K1.4.2.1Exh.GasValuesafterHeaterwithSilencerandSparkArrestorExh.GasDensity=0,00kg/m³Exh.GasdynamicViscosity=0Ns/m²Exh.GaskinematicViscosity=0Ns/m²Exh.GasFlowafterHeater=0,00m³/h1.4.3TotalBack-PressurefromEquipment-dHEQU=188,00mmHC2.PIPESYSTEM2.1SectionbeforeExh.GasHeater2.1.1GeneralValuesPipe1120x6,0-DIN86009InnerDiameterD1=1108,00mmCrossSectionofthePipeF1=0,96m2TotalLengthoftheMainExh.GasPipebeforeheaterL1=18,04mTotalHeightoftheMainExh.GasPipebeforeheaterhV1=9,50mVelocityinpipe=38,34m/sReynoldNumber=1481267Frictioncoefficient=0,01081t1T∆2T22s+t15,27315,273293,1=p)T(,,62027210185∗∗=−υ222sρυη∗=2215,27315,273293,1t+=ps222sρ•υ=η212sQQρ∗=11113600FQWs∗∗=ρ1111sDWReρη∗∗=237011221000320.Re,,+=λ212/sρQ=Q)dHdH(dHdHTHSTHSEQU⇔+=)(1018,562,0172t**=υPage2of20493101-095-210101B.xls/MainEnginePROJECT4-931.01SCHIFFKOGMBHHAMBURGCV1100PLUSCalculationofExhaustGasPipeBack-PressureACCOMP.DRWG.:493101-096-212801C2.1.2NaturalThrustbeforeheater-HNT1=6,07mmHC2.1.3PressurelossesarisedfromfrictionResistance-dHFRA2.1.3.1PressurelossesinPipes-dHFR1=7,19mmHC2.1.3.2PressurelossesinCompensators-dHFR2NumbersofCompensatorsn=3pcs.LengthofCompensatorsl=0,3mLocalResistance=0,72mmHC2.1.3.2TotalPressurelossesarisedfromfrictionResistance-dHFRA=7,91mmHC2.1.4PressurelossesarisedfromsharpResistance-dHSRA2.1.4.1SharpBend-dHSR1Nbs.ofSharpBendsn=4pcs.An...