Term Paper Final Report Emgt354

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Term Paper Final Report (Emgt354)

• Reuse Strategies
• By Jakapun Mepokee

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Introduction

• The goal is to provide a better understanding of
  the role of product reuse and the work presented
  is the broad picture of environmental
  sustainability.

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Product Life Cycle
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What is the factors force manufacturers to go
reuse?

• Legislation
• Customer demand
• Landfill and disposal cost
• Limited resource

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Why reuse is the best?

• Save energy and resource in producing the new
  one.
• Less process.
• Reduce environment impact.

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Why reuse is not really practical?

• The customer prefer the brand-new product over
  the used product
• The economic of scale
• The variety of product
• Technology change too fast

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The benefits of product reuse

• Environmental benefit of reuse
• Other societal benefits of reuse
• Benefits of reuse to remanufacture
• Benefits unique to OEM Remanufactures

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Guideline for Reuse

• 1) Components Intended for Reuse are not Damaged
• 2) The product is Returned to the Remanufactures
• 3) As many Components a Possible are Reusable

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Guideline for Reuse

• 4) Design Product for Disassembly and Assembly
• 5) Reused Components are Easily Cleaned and
  Refurbished
• 6) Reused Components are Easily tested and
  Inspected

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Factors of Reuse Systems(for more efficiency and
economic )

• 1) Volume
• 2) Value of Product
• 3) Time

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Reuse process in 4 phases

• Product Design
• Product Recovery
• Remanufacturing Processes
• Resale of Product

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Product Family
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Function Degradation Model (Using Markov Chain)

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Function Degradation Model (Using Markov Chain)

• Transition rate
• aij 1/b ij
• Probability (product in state i at time t )
• P(t)(Ps1(t),Ps2(t),Psm(t))P(0)eAt

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Function Degradation Model (Using Markov Chain)
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Function Degradation Model (Using Markov Chain)

• The expected function limit at time t
• function limit(t)
• P(t) functionlevel
  ?Psi(t)functionlevel(i)

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Example

• Three Products share one component
• Disassembly cost of each product different
• Product A 0.20
• Product B 0.25
• Product C 0.35

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Model
A
B
C
1
4
2
3
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Value of part reclaim

• Value Function-performance/Total cost

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Result
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Conclusion

• Product A year 4
• Product A year 3
• Product B year 3
• Product A year 2
• This is the first 4 for the best alternative in
  reclaim product for reuse.

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Future work

• Add more constraint to model
• Return rate
• Holding cost
• Penalty cost
• Make model less assumptions and more realistic