silicon powder dispensing system
DESCRIPTION
Silicon Powder Dispensing System. Team GE : Mike Bauman Ben Binder-Macleod Kait Hatton Eric Persak Sponsor Contact: Dave Cook Advisor: Robert Hartman. Presentation Goal. To present path taken to final design Detail each subsystem Validation of concept through testing - PowerPoint PPT PresentationTRANSCRIPT
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Silicon Powder Dispensing System
Team GE:Mike Bauman
Ben Binder-MacleodKait HattonEric Persak
Sponsor Contact: Dave CookAdvisor: Robert Hartman
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Presentation Goal
• To present path taken to final design• Detail each subsystem• Validation of concept through testing• Present path forward
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Background Information
• PV solar panels• Buy pre-made
silicon wafers and assemble at plant
• Want to produce their our wafers
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Current Method
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Current Method
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Project Definition
• To enhance the silicon powder dispensing method for the use in PV solar panels:– Automate dispensing of silicon– Design a support structure
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Specific Wants
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Technical Performance Measures
• Level of automation• Convenience of use• Simplicity of device• Shape/Size• Stability
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Benchmarking Results
assuredautomation.com/butterflyvalves/index.phpwww.accuratefeeders.com/solidsflowfeeders.html
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Powder Dispensing System
Actuator
Pneumatic
Electric
On Structure
Mounting
On Tote
Manual (Button)
Structure
Mechatronics
ElectromagnetSolid Frame
Wheel Track Under Wing
Under Tote
Conveyor Belt
Control System
Time Magnetic
PersonOptical
Load/force
Subsystems
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Structure
Mechatronics
ElectromagnetSolid
Frame
Wheel Track Under Wing
Under Tote
Conveyor Belt
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Structure
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Actuator
Pneumatic
Electric
On Structure
Mounting
On Tote
Manual (Button)
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Actuator
• Bray 70-series Actuator
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Control System
TimeMagnetic
Optical
Load/force
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Control Logic
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Whole System
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Actuator
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Final Assembly
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Wheel Alignment Validation
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Positioning Validation
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Valve Alignment Validation
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FEA Validation
Minimum Factor of Safety
For 2 totes correctly loaded4.8
Minimum Factor of Safety
For 1 tote correctly loaded3.8
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Extreme Conditions
Minimum Factor of SafetyFor 1 tote loaded at the end
2.6
Minimum Factor of SafetyFor Load place on center beam
4.5
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Compared Performance MeasuresTPM Target Values Current Values Final Design Values
Level of automation 3 human interactions >7 human interactions 3 human interactions
Convenience of use < 5 steps > 5 steps 4 Steps
Complexity of device < 4 moving parts 2 4 Moving parts
Shape must fit in plant none fits area
Waste of time < 5 minutes Hours 5 minutes
Accuracy of measurement 1/2 lb none -
Force <10 ft*lb by user by user 100 ft*lb Push of a button
Stability of object <1/4" of movement no stabilization stabilizes tote w/o sway
Strength safety factor 4 n/a 3.8 (1 tote) 4.3 (2 totes)
Reliability 15 years n/a -
Power 110-480V none 120V
Complexity of control 1 switch n/a on/off switch
Adaptability can be refitted very easily redesignable
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Cost Analysis
Item Cost
Materials $8,400.00
Labor $600.00
Engineering and Design $7,000
E & D Compensated -$7,000
15% Contingency $1,400.00
Total $10,400.00
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Progress Completed to Date
• Wheel track complete• Alignment Testing Complete• Design Drawings Delivered to GE
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Path Forward
• Complete Structure• Install Structure into Facility• Install automated control system
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Questions?