Presentation on theme: "Inline Granulation of Stretch Film"— Presentation transcript:
1 Inline Granulation of Stretch Film Precision AirConvey Team 5Jordan BellomoVictor CastroStephen KoellhofferZachary MagnoneMatthew Manzione
2 Outline Problem Definition Current System Concept Selection Detailed DesignFabricationConstructionTest Set Up / TestingPath Forward
3 Problem Definition System Function Proposed Problem Remove, Reprocess, Recycle Stretch FilmProposed ProblemCompetition has a similar, but more efficient systemUses less machineryConverts ribbon directly to fluff, with no intermediate stepsPAC is in danger of losing valued customers
8 Material and some air flow OUT Concept RefinementBest ConceptCylindrical enclosure, conical screenPressure membrane distributes airflowMaterial and some air flow OUTFlow restriction membraneConical screen, 50% open areaLow pressure ZoneSeparated air OUT100% Air and Material IN
14 Testing Measurements Taken: Target Values Pressure: Total Drop ≤ 25 in. H2OAir Velocity: ~6500 ft/min.Air Pulled Through Grinder: ≥ 1000 cfmFan Power: ≤ 60 HzBulk Density of End “Fluff”: 4-7 lb/ft3Material Velocity: ~2000 ft/min.
15 Testing Concept Validation Diversion of air was necessary Theoretical calculations match experimental resultsDiverting some airflowIncreased system efficiencyReduced fan speedIncreased airflow at inletPressure membrane was not criticalConical screen provided enough of a restriction
16 Granulation Success: The Rise and Fall of Stretch Film TestingGranulation Success: The Rise and Fall of Stretch Film
17 Path Forward Compile data CD with all relevant project data for PAC Longer length tests need to be conductedInstall access panel for cleaning purposesExperiment with different conical screensMay be able to further increase system efficiency
18 Summary Problem Definition Current System Concept Selection Detailed DesignFabricationConstructionTest Set Up / TestingPath Forward
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