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Computer Residuals De-manufacturing Method and Its Economic Value

Computer Residuals De-manufacturing Method and Its Economic Value. Project Site: PSE&G Resource Recovery Center Paulsboro, N.J. Group Members: Sheila Navarro Hazel Savellano Rebecca Sutton. Dilbert by Scott Adams. Outline. Problem Statement Current Solution Scope of Project

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Computer Residuals De-manufacturing Method and Its Economic Value

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  1. Computer ResidualsDe-manufacturing Method and Its Economic Value Project Site: PSE&G Resource Recovery Center Paulsboro, N.J. Group Members: Sheila Navarro Hazel Savellano Rebecca Sutton

  2. Dilbert by Scott Adams

  3. Outline • Problem Statement • Current Solution • Scope of Project • Operational Analysis • Economic Analysis • Recommendations • Conclusion

  4. Problem Statement • Approximately 2000 computers per year • 50% refurbished and donated • 40% remanufactured and resold • 10% residual Problem: What to do with the residuals?

  5. Current Solution Contracted to outside source • Take Monitors and CPU • Storage required • Optimal truckload capacity • “Out of sight, out of mind.”

  6. Scope of Project Alternative Solution • Establish a method of de-manufacturing • consider CPU only • environmental issues with monitors • Economic evaluation against current solution • target costing • break-even analysis • comparing alternatives

  7. Operational Assumptions • IBM family of CPU • Optimal working environment • Tools allow for easiest disassembly

  8. Establishing the Work Standard MOST (Maynard Operation Sequence Technique) • Predetermined motion time system • Determines amount of time required • planning • performance rating • establishing costs

  9. Basic MOST Technique • General Move (for movement of object through air) • Controlled Move (for the movement of object in contact with surface or other object) • Tool Use (for use of hand tools)

  10. Application of MOST Removing Fasteners or Screws LH: A1 B0 G3 A1 B0 P1 A1 RH: A1 B0 G1 A1 B0 (P3 A0 L16) A1 B0 P1 A0

  11. Operations of Disassembly Remove Metal Casing Remove Power & Data Cables from Floppy Drive Unfasten Floppy Drive Unfasten Supporting Bar

  12. Operations of Disassembly Remove Support & Floppy Drive Remove Power & Data Cables from Power Supply Remove Mother Board Unfasten& remove PowerSupply

  13. Operations of Disassembly UnfastenDriveHousing RemoveRubberFeet Work Area ** Pictures taken from actual disassembly at PRCC**

  14. Work Method Results • Assume 2 hour work period per day • Allowances taken into consideration (26%) • Use of force, energy 5% • Mental Strain 1% • Monotony 1% • Personal allowance 5% • Unavoidable delay 10% • Basic fatigue 4% De-manufacturing rate for one unit: 8.16 units per hour = 7.35 minutes per unit

  15. Economic Assumptions • Costs are analyzed as present economy studies • Analysis designed to break-even • No MARR

  16. Economic Data Outside service costs: Labor = $10 per unit Transportation = $1.70 per unit Total = $11.70 per unit* * prices based on full capacity truck load

  17. Tools and Equipment * • Computer Screwdriver $20.55 • Grip Floor Mat $14.79 • Hammer $5.91 • Industrial Stool $59.38 • Protective Eyewear $3.77 • Utility Bar $4.24 • Utility Knife $0.59 • Utility Table Bin $0.45 • Wire Cutter $9.90 • Wood Table $310.00 • Worker’s Gloves $6.50 *(unit prices)

  18. Target Cost Analysis * U.S. Department of Labor, Bureau of Labor Statistics - March 1998

  19. Cost & Time Evaluation • Equipment cost per worker = $286.03 • Set-up cost of $1,893.47 = 6 workers • Disassembly rate for 200 units = 24.5 hours

  20. Recommendations • Demanufacturing task as part of unused computer handling operation • Schedule 2 workers per week for demanufacturing • Set-up 2 workstations • 1 workstation for CPU disassembly • 1 workstation for sub-disassembly • Set-up cost = $572.06

  21. Final Thought Implementing an efficient de-manufacturing operation will result in a 70% cost reduction.

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