秸秆回收外文翻译--收获系统和分析草本植物的产量

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1、12HarvestsystemsandanalysisforherbaceousbiomassAbstractBiomassfeedstocksincludingcropresiduesandenergycropsholdgreatpotentialforenergysource.Theyarecurrentlybeingconsideredforuseindirectcombustionsystemsandforvalueaddedbyproductssuchasbiofuelsorbiocrude.Amajorroadblockassociat

2、edwithutilizationofbiomassfeedstocksisthehighcostofhandlingandstorageduetolowenergyandbulkdensityofthesefeedstocks.Inaddition,awidevarietyofexistingharvestsystemscreateslogisticsdifficultiesforbioenergyindustries.Theutilizationofherbaceousbiomassrequiresoptimizedhandlingsystem

3、stocollect,store,andtransportyearround.Thisthenrequiresselectingthemosteconomicalmethodsfromvariousexistinghandlingsystemsforlooseandbaledbiomassmaterials.Howthesedifferentharvestingsystemscanbeintegratedintoacost-effectivesupplysystemisachallenge.Thenumberofharvestdaysorthewi

4、ndowofharvestdependsonthetypeofcrops,geographicandclimateconditions,soilandnutrientmanagementstrategies,etc.Thewindowofharvestcouldgreatlyimpactonharvest,handlingandstoragecosts.Efficientuseofexistingharvestingandhandlingequipmentinalimitedharvestwindowisdesired.Thischapterpro

5、videsprinciplesofselectingfieldharvestmachinesystemstoincreasesystemefficiencyandproductivity.Practicalexamplesareusedtodemonstratecostanalysismethodsofdifferentharvestsystems.Fieldobservationresultsareusedtoquantitativelydescribefieldcapacitiesoftypicalbiomassharvestandhandli

6、ngmachinesystems.Optimizationmodelsbasedontypicalbiomasslogisticssystemsaredescribed.Thischapterwillguidereadersthroughthedecisionprocesstoaddressthemethodologyrequiredtodesign,orspecify,abiomasslogisticssystembasedonthesizeofthebioenergyplantbeingsupplied.Costanalysismethodsa

7、ndexamplesareusedtodemonstratecomponentsoftheprocessthatwillenablebiorefineryindustriesandlandownerstodeterminethemostcost-effectivewaytoharvest,store,andtransportbiomassfeedstocks.1.IntroductionBiomassisadistributedenergyresource.Itmustbecollectedfromproductionfieldsandaccumu

8、latedatstoragelocations.Previousstudiesofherbaceousbiomassasa