ops mgt 29_CLSC_Spring09-1

ops mgt 29_CLSC_Spring09-1 - Obj100 Solutions to CLSC...

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Obj10 Click to edit Master subtitle style © 2006 Atasu, Guide, Van Wassenhove Solutions to CLSC Problems
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Obj10 Click to edit Master subtitle style © 2006 Atasu, Guide, Van Wassenhove Supply Side Design, Accessibility and Life Cycles
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Obj101 © 2006 Atasu, Guide, Van Wassenhove End-of-use Returns Perfect Substitution Value Recovery Design, Accessibility and Life Cycles
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Obj102 © 2006 Atasu, Guide, Van Wassenhove Accessibility Technical feasibility Model : Manufactur ing Remanufacturi ng Deman d Collecti on Leakag e Dispos al z, τ c n rc
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Obj103 © 2006 Atasu, Guide, Van Wassenhove Economic Model Obj104 Product flow diagram of a production system with remanufacturing Obj105 Obj106 Obj107
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Obj108 © 2006 Atasu, Guide, Van Wassenhove r = 110 111 Reuse yield = 0.99 Collection rate c = 0.1 Total collected 111 Total reused 110 1000 1 100 10 1000 Example: Average number of lives n= 3 Limited component durability 1 Collection rate c Reuse yield r 1
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Obj108 © 2006 Atasu, Guide, Van Wassenhove r = 750 875 Reuse yield = 0.86 Collection rate c = 0.5 Total collected 875 Total reused 750 1000 125 500 250 1000 Example: Average number of lives n= 3 1 Collection rate c Reuse yield r 1 Limited component durability
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Obj108 © 2006 Atasu, Guide, Van Wassenhove r = 1710 2439 Reuse yield = 0.70 Collection rate c = 0.9 Total collected 2439 Total reused 1710 1000 729 900 810 1000 Example: Average number of lives n= 3 1 Collection rate c Reuse yield r 1 Limited component durability
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Obj109 © 2006 Atasu, Guide, Van Wassenhove Manuf Reman Collect Leak Dispose Life 2 3 to (n-1) n Total - = 1 1 n i i M c - = 1 0 n i i M c = n i i M c 1 ( 29 - = - 1 0 1 n i i M c c ( 29 M c n 1 - ( 29 M c n 1 - ( 29 M c n 1 - M c n M c n ( 29 ( 29 M c c n 1 1 - - ( 29 ( 29 M c c n 2 1 - - M c 2 M c 2 ( 29 cM c - 1 ( 29 M c - 1 cM cM cM M M M M c n Use Limited component durability
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Obj103 © 2006 Atasu, Guide, Van Wassenhove Accessibility vs. Technical Feasibility ( 29 1 : n n n c c c rc - - = (rc)n= 0.58 c=0.6 n=6 Remanufacturing rate c = Collection rate n = Durability Collection Durability Market rc
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Obj103 © 2006 Atasu, Guide, Van Wassenhove The Economic Impact of Limited Component Durability: Accessibility vs. Technical Feasibility Obj13 Change in the average production cost for two different designs: (Cman(n=2), Cman(n=4), Creman, Ccoll, Cdisp) = (1,1.3,0.3,0.2,0.1) Average cost saving per product with constant unit costs Obj135 ΔC/Cman
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Obj103 © 2006 Atasu, Guide, Van Wassenhove Finite Life Cycles Accessibility vs. Market Conditions sales data 0 2000 4000 6000 8000 10000 12000 1988 1990 1992 1994 1996 1998 year Product life cycle of a photocopier model (Source: Marx-Gomez & Rautenstrauch 1999) Collecti on Durabil ity Mark et rc
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ops mgt 29_CLSC_Spring09-1 - Obj100 Solutions to CLSC...

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