variable_speed_pumping

《variable_speed_pumping》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、VVARIABLEARIABLESSPEEDPEEDPPUMPINGUMPINGAGAGUIDEUIDETOTOSSUCCESSFULUCCESSFULAAPPLICATIONSPPLICATIONSEXECUTIVESUMMARYVVARIABLEARIABLESSPEEDPEEDDDRIVESRIVESAWAWAYAYTTOOLLOWEROWERLLIFEIFECCYCLEYCLECCOSTSOSTSU.S.DepartmentofEnergyEnergyEfficiencyandRenewableEnergyu

2、ropumpIndustrialTechnologiesProgramBringingyouaprosperousfuturewhereenergyisclean,abundant,reliable,andaffordableTableofContentsIntroduction..........................................1PumpingSystems.....................................1SelectionProcess—NewSystem

3、s.......................8SelectionProcess—RetrofittingtoExistingEquipment....10BenefitsofVSDs.....................................10PotentialDrawbacksofVSDs..........................10EstimatingPumpingEnergyCosts......................12CapitalCostSavings.......

4、...........................13FinancialJustification.................................13Example:VariableSpeedDrivesFittedonaPrimaryFeedPumpandProductTransferPumpinaRefinery.......14AcknowledgmentVariableSpeedPumping—AGuidetoSuccessfulApplications,ExecutiveSummary

5、istheresultofacollaborationbetweentheHydraulicInstitute,Europump,andtheU.S.DepartmentofEnergy’s(DOE)IndustrialTechnologiesProgram.ExecutiveSummaryIntroductionPumpingsystemsaccountfornearly20%oftheworld’senergyusedbyelectricmotorsand25%to50%ofthetotalelectricale

6、nergyusageincertainindustrialfacilities.Significantopportunitiesexisttoreducepumpingsystemenergycon-sumptionthroughsmartdesign,retrofitting,andoperatingpractices.Inparticu-lar,themanypumpingapplicationswithvariable-dutyrequirementsoffergreatpotentialforsavings.

7、Thesavingsoftengowellbeyondenergy,andmayincludeimprovedperformance,improvedreliability,andreducedlifecyclecosts.Mostexistingsystemsrequiringflowcontrolmakeuseofbypasslines,throttlingvalves,orpumpspeedadjustments.Themostefficientoftheseispumpspeedcon-Pumpingappl

8、ica-trol.Whenapump’sspeedisreduced,lessenergyisimpartedtothefluidandlesstionswithvariable-energyneedstobethrottledorbypassed.Speedcanbecontrolledinanumberofdutyrequirementsw