信息与通信某半导体分立器件封装测试厂厂务能源管理系统介绍课件

EnergyStatistics&Management

SystemVishayMicro-electronics(Xi’an)Co.,Ltd.January16,2008EnergyStatistics&ManagementGeneralDescriptionofEnergyAdministrationSystemEnergysupplyspecificationOutsourcingspecificationSupplyspecificationUserenergymanagementsystemEstablishtreechartofenergysupplysystemApplicationsystemforuserdemandmodificationoraddition.Energymanagementfortemporaryuser.Oct12,20072GeneralDescriptionofEnergyGeneralDescriptionof

EnergyAdministrationSystemEnergystatistics&analysissystem.RoutinerecordofenergyconsumptionWeeklystatisticsofenergyconsumptionAnalysisonweeklystatisticsdataQuantityofenergyconsumptionCostofenergyconsumptionCostperkproductsforeachoutsourcingenergies.EnergycostperkproductsFeedbackabnormaldatatorelevantpersonnelofproduction,maintenanceandIEHStofindthereason.ReportingProvideenergystatisticsdatatofinance.ReportenergystatisticsdatatoAsiaIEHSdirector.Oct12,20073GeneralDescriptionof

EnergyEnergyoutsourcingspecificationNo.ItemSpecificationSupplierRemarks1Power50Hz,3phase,10KV±10％MunicipalBureauofPowerSupplyStateGridNorthwestCompany2N2Bulknitrogentank,puritynotlessthan99.999％,Dewpoint-60℃,Oxygenlessthan10PPMTaidaLowTemperatureEquipmentCo.,Ltd.

3H2Cylinder,puritynotlessthan99.999％,Dewpoint-60℃,Oxygenlessthan10PPMTaidaLowTemperatureEquipmentCo.,Ltd.

4TapwaterP≥0.3MPa，qualitytomeetrelevantstandardofdrinkingwaterqualityMunicipalUtilityServiceMunicipalUtilitypipeline5NaturalgasP≥8KPa,methanenotlessthan94%(V/V)，LowHeatValuenotlessthan33MJ/Nm3QinhuaNaturalGasCo.,Ltd.MunicipalUtilitypipelineOct12,20074EnergyoutsourcingspecificatiEnergysupplyspecificationNo.ItemTypeSpecificationRangeofSupplyRemarks1Power3phase380VAC50Hz,3phase380V，±10％Allbuilding(Exceptforoffice)1.Plug-inBussupplyinProductionarea21phase220VAC50Hz,1phase220V,±10％Allbuilding2.TN-Spowersupplysystem33phase380VEPS50Hz，3phase380V，±10％Firefighting,EPS,exhaustscrubbersystem3.Beaker+terminalconnectionshallbeusedifpowerloadmorethan5Kw.Powersocketcouldbeusedwhenloadlessthan5Kw4Normallighting400LUXOffice,controlroom,warehouse1.Theluminanceoffluorescentlampreducesslowly.IEHSmakesplantoreplaceregularly.5600LUXProductionarea,lab,IQC2.LuxofEmergencylightingwillbelowerthannormal.6200LUXHallway3.Theluminanceofoutdoorandexteriorwallslightingcomplieswithrelevantspecification.7Emergencylighting50LUXOtherindividualbuilding,emergencylightingofeachroom4.Emergencyexitindicationlampsinstalled8GasNitrogenPuritynotlessthan99.999％，Pressure0.7~0.85MPa(systempressure)Dewpointlowerthan-60℃,Oxygencontentlessthan10PPMDIwaterstation,FGwarehouse,ReliabilityLab,FELab,DieBank,IQC,FOL/Mold/SolderDiparea.

9ForminggasN2:89%~87%，H2:11%~13%,pressure0.34~0.41MPa(systempressure),Dewpointlessthan-60℃,Oxygencontentlessthan10PPMDiebond

10Compressedair0.6~0.7MPa，压力露点不大于+5℃，经精密过滤ReliabilityLab,FOL/Mold/SolderDip/testing/platingarea

11VacuumVacuum≥0.8BarFOL

12SteamPressure0.3~0.4barHeatingofFacilitystation,Facilityofficeandcontrolroom,heatingandhumidificationofAHU,heatsupplyofFCUheatexchanger.

Oct12,20075EnergysupplyspecificationNo.EnergysupplyspecificationNo.ItemTypeSpecificationRangeofSupplyRemarks13Feed&DischargeProcesscoolingwater0.2MPa~0.3MPa，≤28℃Mold/SolderDip,Testarea,Rel.LabTotalhardnesslessthan5PPM14DIwaterResistance≥15MΩ，≥0.３MPaMold/SolderDip,Testarea,calibrationLab,Rel.Lab,FELab,Plating

15Hotwater≥0.15MPa，40~60℃Toilets(mainbuilding)andkitchen16Tapwater≥0.2MPaSolderDip,Plating,Toilets,Kitchen,FELab,Rel.Lab,CalibrationLabForeyewashandwaterreplenishment&washingofsomeequipment17IndustrialwastewaterdischargeDischargeddirectly,max.flow7.5M3/HDIwaterStation,FOL,SolderDip,FELab,ReliabilityLab,Kitchen.

18DomesticWastewaterdischargeDischargedthroughoilseparation/septictankToiletsandkitchen

19IndustrialwastewaterdischargeDischargedafterwastewatertreatmentPlating

20HVACAmenityairconditionerT=18~25℃Offices,Meetingroom,cafeteria,trainingroom.

21Industrialairconditioner1.T&H:TestingT=25℃，±2℃,RH=40~60,PlatingT=23℃,±2℃，RH=30~70%,othersT=25℃,±5℃,RH=40~60%;

2.Pressuredifference:Mold,SolderDip,Plating:negativepressure(-10±5Pa),FOL,Testing,DieBank:positivepressure(+10±5Pa);Lab(0±5Pa)

3.Cleanliness:ISO8levelinK1areaandISO9levelinotherarea.FOL,Mold,SolderDip,Test,Plating,DiseBank,IQC,Rel.Lab,FELab,CalibrationLab

Oct12,20076EnergysupplyspecificationNo.UserEnergyManagement1EstablishtreechartofeachkindofenergysuppliesFacilitysupplypipelinessystemdiagramUserofeachmainlinesandbranchesCapacityofeachmainlinesandbranchesOccupiedcapacityofeachmainlinesandbranchescanbecalculatedautomaticallybasedonequipmentinstallationinformation.Ifoccupiedcapacityofonesupplylinereaches80%ofdesigncapacity,alarmwillbegiveninthesystemthatnoendequipmentshallbeaddedinthisline.Oct12,20077UserEnergyManagement1EstablSupplypipe&linesystemdiagram

Oct12,20078Supplypipe&linesystemdiagFacilitysupplysystemdiagramOct12,20079FacilitysupplysystemdiagraFacilitysupplysystemdiagramOct12,200710FacilitysupplysystemdiagramFacilitysupplysystemdiagramPowersystemisanalyzedbylogisticsheetOct12,200711FacilitysupplysystemdiagramUserenergymanagement2EstablishApplicationFormforsupplydemandchangeApplicationforsupplyincreaseorchange.Ensuresupplychangewillnotaffectfacilitysystemnegatively.InsufficientcapacityofsupplylinesDuetouserequipmentaddition,someequipmentaffectsotherequipmentnegatively.Reviewfacilitysupplysystemwhileuserequipmentcapacityincrease.Oct12,200712Userenergymanagement2EstablStartUsersubmittechnicalspecificationtoconfirmtechnicalrequirementandsupplydemandUsersubmitApplicarionformforFacilitySupplyIncreaseIEHSreviewthesystemcapacityandmakeassessmentFeasibleIEHSmanagerapproveandsignontechnicalspecificationYESNOPRandPurchasePlantobemodifiedYESSupplyupgradingEndNOIssupplytobeincreasedInstallationYESNOPlantGMapproveProcessofSupplyIncreaseApplicationOct12,200713StartUsersubmittechnicalspeApplicationforfacilitysupplychangeOct12,200714ApplicationforfacilitysupplApplicationforfacilitysupplychangeOct12,200715ApplicationforfacilitysupplEnergymanagementfortemporaryuserOct12,200716EnergymanagementfortemporarEnergystatistics&analysissystemTheresponsibilityandrequirementofenergyconsumptionrecord,statisticsandanalysisarespecifiedinEnergyManagementRegulation.Routineparametersandconsumptionrecord(byoperationengineer).Weeklystatisticsandanalysis(byPMengineer)Abnormaldatawillbefedbacktorelevantpersonneltofindthereason.Statisticsinformationisprovidedtorelateddepartmentsregularly.Monitoringifenergychargesareconsistentwithactualconsumption.Oct12,200717Energystatistics&analysissStatistics&analysisofenergyconsumptionOriginaldatarecordRecordreadingsofpowersupply,watersupply,naturalgassupply,nitrogenflow,hydrogenflowat8o’clockoneverySunday.Theserecordsaretobeusedasoriginaldataofenergystatistics&analysis.Calculateweeklyconsumptionquantitiesandcosts.CalculateenergycostsperkproductsConfirmifthedataisabnormalaccordingtothecomparisonwithhistoricaldata.Usethetoolssuchaslinechart,columnchart,piecharttocompare&analyzeenergycosts.Findthereasonofabnormaldataandeliminatetheproblems.Oct12,200718Statistics&analysisofenergEnergystatisticsprocessStartOperationengineersubmitsoriginaldatatoPMengineerPMengineerhandles&analyzesdataPMengineerprovidesanalysisresultstofinanceEndIsdatanormal?InformoperationandmaintenancesupervisortofindreasonandresolveintimeYseNoOct12,200719

EnergystatisticsOriginalrecordOct12,200720EnergystatisticsOriginalrecoEnergystatisticsEnergyconsumptionOct12,200721EnergystatisticsEnergyconsumWeeklyenergycostOct12,200722WeeklyenergycostOct12,20072Weeklyenergyconsumptiontrend(exceptN2andH2)Oct12,200723WeeklyenergyconsumptiontrenAdvantageandlimitationoftrenddiagramsAdvantageReflectthetrendofenergyconsumptionsDetectabnormaldataaccordingtocomparisonbetweentotalconsumptionandconsumptionperkproducts.Judgewhetherthereasonisfromsupplylinesanduserequipmentaccordingtovariationtrendsofconsumption.LimitationNaturalgasconsumptiononlycorrelateswithoutdoortemperatureinsteadofproductoutput.Sowhentheefficiencydrops,abnormaldatacannotbefoundonthetrenddiagram.Abnormaldatawillbedetectedwhenwaterconsumptionrisesinsummer.Butitishardtojudgeifthedataisreasonable.Oct12,200724AdvantageandlimitationoftrMonthlycostanalysisPurposeofcostcomparisoncolumnchartReflecttherelativescaleofeachcostaccountsintotalcost.Showthevariationtrendofeachcost.Oct12,200725MonthlycostanalysisPurposeoThepurposeofpiechart：

Directlyshowsrelativeratioofeachcosts.Oct12,200726Thepurposeofpiechart：

Piechartofannualaveragecostperkproductsprovidesfinancedetailedinformationofcostanalysis.Oct12,200727PiechartofannualaveragecoLinechart-EnergycostperkproductsvsoutputTheunitofoutputis100K.Throughthecomparisonbetweenoutputandenergycostcorrelationbetweenthemisreflecteddirectly.Oct12,200728Linechart-EnergycostperkApplicationpracticeofenergystatistics&analysisinactualcostcontrol1Energybudgetcanbemadebasedontheresultofenergystatistics&analysis.Energybudgetiscalculatedaccordingtoenergycostperkproductsandplannedoutput.Duetoequipmentmove,theoutputvarieseverymonthwhichleadstothevariationofcostperkproducts.Thecostperkproductscanbecalculatedaccordingtotheresultofanalysis.Thedifferencebetweenbudgetenergycostandactualcostiscontrolledwithin5%.Oct12,200729ApplicationpracticeofenergyApplicationpracticeofenergystatistics&analysisinactualcostcontrol2DuringtheweekfromJuly2toJuly9,totalconsumptionincreasedslightlywhiletheconsumptionperproductsincreasedgreatly.Itwasabnormaldataandgasleakagewasdetected.Aftertheleakageproblemwaseliminatedtheconsumptionperkproductstrendedstable.DuringtheweekfromNovember21toNovember27,bothtotalconsumptionandconsumptionperkproductsincreasedalotwhichwasalsoanabnormaldata.Afterinspectionitisfoundthatproductionoperatoradjustedplowrateofequipment.ThenaftercoordinationwithMDandEngineering,thegasflowwasadjustedproperlyandthegasconsumptioncamebacktonormalvalue.Oct12,200730ApplicationpracticeofenergyY07EnergyPurchaseCoststatisticsMonthOutputTapwater

PowerTransformerBasicchargeNGH2N2Subtotal

KUSDUSDUSDUSDUSDUSDUSDJan-07672123762578365101431830661558061123Feb-07657122892611065101011328951520956615Mar-0772312170262633255787127961559454695Apr-0763532335269733255527425211439751500May-0768662536281943255424928181624354040Jun-0778322696342133255372132602250966399Jul-0767133002289493255365129872130459893Aug-0797772396312733255366738852759668817Sep-07114392758335843255528246412668672950Total6950322558261342358075814528869175120546034Annualaveragecost/k(USD/k)0.323.760.510.220.492.517.86Applicationpracticeofenergystatistics&analysisinactualcostcontrol3Oct12,200731Y07EnergyPurchaseCoststatiExperienceofenergymanagement1Energymanagementsystemshallbeestablishedtobeapplicabletoalldepartmentsespeciallyprocessengineeringandequipmentmaintenancedepartment.PotentialconsumptionincreasecanbefoundandresolveASAP.EnergyConsumptioncanbecontrolledwithinareasonablerange.Coordinationandcooperationbetweeneachdepartmentsisneededtoeffectivelycontroltheconsumption.Theoutputaffectsconsumptionperkproductsgreatly.Forfixedfacilitysystemthemostefficientwaytoreduceenergyconsumptionperkproductsistoincreaseproductionoutput.Oct12,200732ExperienceofenergymanagemenExperienceofenergymanagement2Thelargestenergyreductionshallbeprocessenergyreduction.Itisimportanttoconcernsystemenergysavingduringplanninganddesign.Compressedairconsumptionwillbereducedifsupplyisclassifiedbypressure.Buttheinvestmentwillbeincreased.ItaffectsthepowerconsumptionofAHUsystemgreatlythatwhetherbuildingenclosurestructureandtemperatureandhumidityparameterarereasonable.Itaffectstapwaterconsumptiongreatlythatwhetherindustrialwastewatercouldberecycled.ProcessenergyreductionandsystemenergyreductionisconsideredaskeysubjectinPhaseIIproject.Sotheenergyconservationoffuturecompletedprojectisguaranteedinplanninganddesignstage.Oct12,200733ExperienceofenergymanagemenThanksYou!VishayMicro-electronics(Xi’an)Co.,Ltd.October12,2007Oct12,200734ThanksYou!VishayMicro-electEnergyStatistics&Management

SystemVishayMicro-electronics(Xi’an)Co.,Ltd.January16,2008EnergyStatistics&ManagementGeneralDescriptionofEnergyAdministrationSystemEnergysupplyspecificationOutsourcingspecificationSupplyspecificationUserenergymanagementsystemEstablishtreechartofenergysupplysystemApplicationsystemforuserdemandmodificationoraddition.Energymanagementfortemporaryuser.Oct12,200736GeneralDescriptionofEnergyGeneralDescriptionof

EnergyAdministrationSystemEnergystatistics&analysissystem.RoutinerecordofenergyconsumptionWeeklystatisticsofenergyconsumptionAnalysisonweeklystatisticsdataQuantityofenergyconsumptionCostofenergyconsumptionCostperkproductsforeachoutsourcingenergies.EnergycostperkproductsFeedbackabnormaldatatorelevantpersonnelofproduction,maintenanceandIEHStofindthereason.ReportingProvideenergystatisticsdatatofinance.ReportenergystatisticsdatatoAsiaIEHSdirector.Oct12,200737GeneralDescriptionof

EnergyEnergyoutsourcingspecificationNo.ItemSpecificationSupplierRemarks1Power50Hz,3phase,10KV±10％MunicipalBureauofPowerSupplyStateGridNorthwestCompany2N2Bulknitrogentank,puritynotlessthan99.999％,Dewpoint-60℃,Oxygenlessthan10PPMTaidaLowTemperatureEquipmentCo.,Ltd.

3H2Cylinder,puritynotlessthan99.999％,Dewpoint-60℃,Oxygenlessthan10PPMTaidaLowTemperatureEquipmentCo.,Ltd.

4TapwaterP≥0.3MPa，qualitytomeetrelevantstandardofdrinkingwaterqualityMunicipalUtilityServiceMunicipalUtilitypipeline5NaturalgasP≥8KPa,methanenotlessthan94%(V/V)，LowHeatValuenotlessthan33MJ/Nm3QinhuaNaturalGasCo.,Ltd.MunicipalUtilitypipelineOct12,200738EnergyoutsourcingspecificatiEnergysupplyspecificationNo.ItemTypeSpecificationRangeofSupplyRemarks1Power3phase380VAC50Hz,3phase380V，±10％Allbuilding(Exceptforoffice)1.Plug-inBussupplyinProductionarea21phase220VAC50Hz,1phase220V,±10％Allbuilding2.TN-Spowersupplysystem33phase380VEPS50Hz，3phase380V，±10％Firefighting,EPS,exhaustscrubbersystem3.Beaker+terminalconnectionshallbeusedifpowerloadmorethan5Kw.Powersocketcouldbeusedwhenloadlessthan5Kw4Normallighting400LUXOffice,controlroom,warehouse1.Theluminanceoffluorescentlampreducesslowly.IEHSmakesplantoreplaceregularly.5600LUXProductionarea,lab,IQC2.LuxofEmergencylightingwillbelowerthannormal.6200LUXHallway3.Theluminanceofoutdoorandexteriorwallslightingcomplieswithrelevantspecification.7Emergencylighting50LUXOtherindividualbuilding,emergencylightingofeachroom4.Emergencyexitindicationlampsinstalled8GasNitrogenPuritynotlessthan99.999％，Pressure0.7~0.85MPa(systempressure)Dewpointlowerthan-60℃,Oxygencontentlessthan10PPMDIwaterstation,FGwarehouse,ReliabilityLab,FELab,DieBank,IQC,FOL/Mold/SolderDiparea.

9ForminggasN2:89%~87%，H2:11%~13%,pressure0.34~0.41MPa(systempressure),Dewpointlessthan-60℃,Oxygencontentlessthan10PPMDiebond

10Compressedair0.6~0.7MPa，压力露点不大于+5℃，经精密过滤ReliabilityLab,FOL/Mold/SolderDip/testing/platingarea

11VacuumVacuum≥0.8BarFOL

12SteamPressure0.3~0.4barHeatingofFacilitystation,Facilityofficeandcontrolroom,heatingandhumidificationofAHU,heatsupplyofFCUheatexchanger.

Oct12,200739EnergysupplyspecificationNo.EnergysupplyspecificationNo.ItemTypeSpecificationRangeofSupplyRemarks13Feed&DischargeProcesscoolingwater0.2MPa~0.3MPa，≤28℃Mold/SolderDip,Testarea,Rel.LabTotalhardnesslessthan5PPM14DIwaterResistance≥15MΩ，≥0.３MPaMold/SolderDip,Testarea,calibrationLab,Rel.Lab,FELab,Plating

15Hotwater≥0.15MPa，40~60℃Toilets(mainbuilding)andkitchen16Tapwater≥0.2MPaSolderDip,Plating,Toilets,Kitchen,FELab,Rel.Lab,CalibrationLabForeyewashandwaterreplenishment&washingofsomeequipment17IndustrialwastewaterdischargeDischargeddirectly,max.flow7.5M3/HDIwaterStation,FOL,SolderDip,FELab,ReliabilityLab,Kitchen.

18DomesticWastewaterdischargeDischargedthroughoilseparation/septictankToiletsandkitchen

19IndustrialwastewaterdischargeDischargedafterwastewatertreatmentPlating

20HVACAmenityairconditionerT=18~25℃Offices,Meetingroom,cafeteria,trainingroom.

21Industrialairconditioner1.T&H:TestingT=25℃，±2℃,RH=40~60,PlatingT=23℃,±2℃，RH=30~70%,othersT=25℃,±5℃,RH=40~60%;

2.Pressuredifference:Mold,SolderDip,Plating:negativepressure(-10±5Pa),FOL,Testing,DieBank:positivepressure(+10±5Pa);Lab(0±5Pa)

3.Cleanliness:ISO8levelinK1areaandISO9levelinotherarea.FOL,Mold,SolderDip,Test,Plating,DiseBank,IQC,Rel.Lab,FELab,CalibrationLab

Oct12,200740EnergysupplyspecificationNo.UserEnergyManagement1EstablishtreechartofeachkindofenergysuppliesFacilitysupplypipelinessystemdiagramUserofeachmainlinesandbranchesCapacityofeachmainlinesandbranchesOccupiedcapacityofeachmainlinesandbranchescanbecalculatedautomaticallybasedonequipmentinstallationinformation.Ifoccupiedcapacityofonesupplylinereaches80%ofdesigncapacity,alarmwillbegiveninthesystemthatnoendequipmentshallbeaddedinthisline.Oct12,200741UserEnergyManagement1EstablSupplypipe&linesystemdiagram

Oct12,200742Supplypipe&linesystemdiagFacilitysupplysystemdiagramOct12,200743FacilitysupplysystemdiagraFacilitysupplysystemdiagramOct12,200744FacilitysupplysystemdiagramFacilitysupplysystemdiagramPowersystemisanalyzedbylogisticsheetOct12,200745FacilitysupplysystemdiagramUserenergymanagement2EstablishApplicationFormforsupplydemandchangeApplicationforsupplyincreaseorchange.Ensuresupplychangewillnotaffectfacilitysystemnegatively.InsufficientcapacityofsupplylinesDuetouserequipmentaddition,someequipmentaffectsotherequipmentnegatively.Reviewfacilitysupplysystemwhileuserequipmentcapacityincrease.Oct12,200746Userenergymanagement2EstablStartUsersubmittechnicalspecificationtoconfirmtechnicalrequirementandsupplydemandUsersubmitApplicarionformforFacilitySupplyIncreaseIEHSreviewthesystemcapacityandmakeassessmentFeasibleIEHSmanagerapproveandsignontechnicalspecificationYESNOPRandPurchasePlantobemodifiedYESSupplyupgradingEndNOIssupplytobeincreasedInstallationYESNOPlantGMapproveProcessofSupplyIncreaseApplicationOct12,200747StartUsersubmittechnicalspeApplicationforfacilitysupplychangeOct12,200748ApplicationforfacilitysupplApplicationforfacilitysupplychangeOct12,200749ApplicationforfacilitysupplEnergymanagementfortemporaryuserOct12,200750EnergymanagementfortemporarEnergystatistics&analysissystemTheresponsibilityandrequirementofenergyconsumptionrecord,statisticsandanalysisarespecifiedinEnergyManagementRegulation.Routineparametersandconsumptionrecord(byoperationengineer).Weeklystatisticsandanalysis(byPMengineer)Abnormaldatawillbefedbacktorelevantpersonneltofindthereason.Statisticsinformationisprovidedtorelateddepartmentsregularly.Monitoringifenergychargesareconsistentwithactualconsumption.Oct12,200751Energystatistics&analysissStatistics&analysisofenergyconsumptionOriginaldatarecordRecordreadingsofpowersupply,watersupply,naturalgassupply,nitrogenflow,hydrogenflowat8o’clockoneverySunday.Theserecordsaretobeusedasoriginaldataofenergystatistics&analysis.Calculateweeklyconsumptionquantitiesandcosts.CalculateenergycostsperkproductsConfirmifthedataisabnormalaccordingtothecomparisonwithhistoricaldata.Usethetoolssuchaslinechart,columnchart,piecharttocompare&analyzeenergycosts.Findthereasonofabnormaldataandeliminatetheproblems.Oct12,200752Statistics&analysisofenergEnergystatisticsprocessStartOperationengineersubmitsoriginaldatatoPMengineerPMengineerhandles&analyzesdataPMengineerprovidesanalysisresultstofinanceEndIsdatanormal?InformoperationandmaintenancesupervisortofindreasonandresolveintimeYseNoOct12,200753

EnergystatisticsOriginalrecordOct12,200754EnergystatisticsOriginalrecoEnergystatisticsEnergyconsumptionOct12,200755EnergystatisticsEnergyconsumWeeklyenergycostOct12,200756WeeklyenergycostOct12,20072Weeklyenergyconsumptiontrend(exceptN2andH2)Oct12,200757WeeklyenergyconsumptiontrenAdvantageandlimitationoftrenddiagramsAdvantageReflectthetrendofenergyconsumptionsDetectabnormaldataaccordingtocomparisonbetweentotalconsumptionandconsumptionperkproducts.Judgewhetherthereasonisfromsupplylinesanduserequipmentaccordingtovariationtrendsofconsumption.LimitationNaturalgasconsumptiononlycorrelateswithoutdoortemperatureinsteadofproductoutput.Sowhentheefficiencydrops,abnormaldatacannotbefoundonthetrenddiagram.Abnormaldatawillbedetectedwhenwaterconsumptionrisesinsummer.Butitishardtojudgeifthedataisreasonable.Oct12,200758AdvantageandlimitationoftrMonthlycostanalysisPurposeofcostcomparisoncolumnchartReflecttherelativescaleofeachcostaccountsintotalcost.Showthevariationtrendofeachcost.Oct12,200759MonthlycostanalysisPurposeoThepurposeofpiechart：

Directlyshowsrelativeratioofeachcosts.Oct12,200760Thepurposeofpiechart：

Piechartofannualaveragecostperkproductsprovidesfinancedetailedinformationofcostanalysis.Oct12,200761PiechartofannualaveragecoLinechart-EnergycostperkproductsvsoutputTheunitofoutputis100K.Throughthecomparisonbetweenoutputandenergycostcorrelationbetweenthemisreflecteddirectly.Oct12,200762Linechart-EnergycostperkApplicationpracticeofenergystatistics&analysisinactualcostcontrol1Energybudgetcanbemadebasedontheresultofenergystatistics&analysis.Energybudgetiscalculatedaccordingtoenergycostperkproductsandplannedoutput.Duetoequipmentmove,theoutputvarieseverymonthwhichleadstothevariationofcostperkproducts.Thecostperkproductscanbecalculatedaccordingtotheresultofanalysis.Thedifferencebetweenbudgetenergycostandactualcostiscontrolledwithin5%.Oct12,200763ApplicationpracticeofenergyApplicationpracticeofenergystatistics&analysisinactualcostcontrol2DuringtheweekfromJuly2toJuly9,totalconsumptionincreasedslightlywhiletheconsumptionperproductsincreasedgreatly.Itwasabnormaldataandgasleakagewasdetected.Aftertheleakageproblemwaseliminatedtheconsumptionperkproductstrendedstable.DuringtheweekfromN