生命周期评估.ppt

文档介绍：LifeCycleAssessment生命週期評估福島康裕助理教授國立成功大學環境工程學系RecyclingratesThereareanumberofwaystoexpressrecyclingrateRecyclingrate(reuserate)Collectionrate:d/(c+d)Recyclingrateafterlosses:f/(c+d)Returnrate:g/(g+a)TripnumberProductionUseRecycling~~abcdefgQ:Howcanweconverttripnumberintorecyclingrates?RecyclingratesForsimplicity,assumethatlossinrecyclingisnegligible,,recyclingrateafterlosses,andreturnrateareequivalentunderthisassumptionProductionUseRecycling~~abcdefgProduction1Use1Recycling1Production2Use2Recycling2ProductionNUseNcab=c+dc=b/Nd=c(N-1)recyclingrater=d/(c+d)r=1–1/NN=1/(1-r)Whatdoesitimply?BecauseLCIresultsdependlinearlytor,IfNishigh,increasingtripnumberisnotsoi