Performance evaluation of waste electrical and electronic equipment disassembly layout configurations using simulation
Ozan Capraz1, Olcay Polat2, Askiner Gungor2()
1. Department of Industrial Engineering, Namık Kemal University, Corlu/Tekirdag 59860, Turkey 2. Department of Industrial Engineering, Pamukkale University, Pamukkale/Denizli 20160, Turkey
Alternative layout configurations for WEEE disassembly systems (WDS) are evaluated.
An efficient modeling approach for simulation of manual WDS is proposed.
Effect of various transfer systems on the performance criteria is investigated.
Learning curve effect in WDS layout simulation models is investigated.
Managerial implications are provided to increase the practical impact of the study.
Recycling of waste electrical and electronic equipment (WEEE) is crucially important since it handles hazardous waste according to ever tightening laws and regulations and it adds benefits to economy and sustainable environment. Disassembly is one of the most important processes performed during the recovery of WEEE. The overall goal of disassembly is to maximize the retrieval of various metals and plastics contained in WEEE in order to reduce their negative effects on human health and environmental sustainability and to increase economic gains. This study aims to evaluate alternative layout configurations for WEEE disassembly systems (WDS). In this context, various configurations were compared in terms of pre-defined performance criteria, such as the total number of disassembled WEEE and the total revenue from sales, using simulation models. The results of this study show that the performance of a WDS was significantly affected by output transfer systems along with the specialization of operators on certain types of WEEE.
Disassembly line- divergent and convergent material flow
System design
Disassembly workstation
Disassembly line
Disassembly line
Disassembly line
Conveyor type
N/A
Straight
Circular
Straight & Circular
Output classification
By workstation operators
By workstation operators
By a classification operator
By a classification operator
Difficulty of output classification
High
High
Moderate
Moderate
Number of workstations
3
3
3
3
Number of operators
3
4
4
5
Non-value added times
High
Medium
Medium
Low
Flexibility of the system
High
Medium
Medium
Low
Reconfiguration cost
Low
Medium
Medium
High
Tab.1
Fig.5
Process
Config.-1
Config.-2
Config.-3
Config.-4
Config.-1 with classification
Distribution
Unit
Distribution
Unit
Distribution
Unit
Distribution
Unit
Distribution
Unit
Arrivals
PC
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
CRT TV
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
CRT monitor
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
LCD TV
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
LCD monitor
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Based on a schedule
–
Picking time
PC
TRIA (50,60,70)a)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
CRT TV
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
CRT monitor
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
LCD TV
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
LCD monitor
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
TRIA (3,5,7)
Sec.
TRIA (50,60,70)
Sec.
Disassembly time
PC
TRIA (130,150,170)
Sec.
TRIA (130,150,170)
Sec.
TRIA (130,150,170)
Sec.
TRIA (130,150,170)
Sec.
TRIA (85,105,125)
Sec.
CRT TV
TRIA (370,390,410)
Sec.
TRIA (370,390,410)
Sec.
TRIA (370,390,410)
Sec.
TRIA (370,390,410)
Sec.
TRIA (235,255,275)
Sec.
CRT monitor
TRIA (370,390,410)
Sec.
TRIA (370,390,410)
Sec.
TRIA (370,390,410)
Sec.
TRIA (370,390,410)
Sec.
TRIA (235,255,275)
Sec.
LCD TV
TRIA (1030,1050,1070)
Sec.
TRIA (1030,1050,1070)
Sec.
TRIA (1030,1050,1070)
Sec.
TRIA (1030,1050,1070)
Sec.
TRIA (650,670,690)
Sec.
LCD monitor
TRIA (940,960,980)
Sec.
TRIA (940,960,980)
Sec.
TRIA (940,960,980)
Sec.
TRIA (940,960,980)
Sec.
TRIA (595,615,635)
Sec.
Placement time
PC
TRIA (50,60,70)
Sec.
TRIA (50,60,70)
Sec.
TRIA (20,30,40)
Sec.
TRIA (20,30,40)
Sec.
TRIA (50,60,70)
Sec.
CRT TV
TRIA (50,60,70)
Sec.
TRIA (50,60,70)
Sec.
TRIA (20,30,40)
Sec.
TRIA (20,30,40)
Sec.
TRIA (50,60,70)
Sec.
CRT monitor
TRIA (50,60,70)
Sec.
TRIA (50,60,70)
Sec.
TRIA (20,30,40)
Sec.
TRIA (20,30,40)
Sec.
TRIA (50,60,70)
Sec.
LCD TV
TRIA (50,60,70)
Sec.
TRIA (50,60,70)
Sec.
TRIA (20,30,40)
Sec.
TRIA (20,30,40)
Sec.
TRIA (50,60,70)
Sec.
LCD monitor
TRIA (50,60,70)
Sec.
TRIA (50,60,70)
Sec.
TRIA (20,30,40)
Sec.
TRIA (20,30,40)
Sec.
TRIA (50,60,70)
Sec.
Output classification time
–
–
–
–
TRIA (8,10,12)
Sec.
TRIA (8,10,12)
Sec.
–
–
Setup time
TRIA (20,30,40)
Sec.
TRIA (10,15,20)
Sec.
TRIA (20,30,40)
Sec.
TRIA (10,15,20)
Sec.
–
–
Cleaning time
TRIA (20,30,40)
Sec.
TRIA (10,15,20)
Sec.
TRIA (20,30,40)
Sec.
TRIA (10,15,20)
Sec.
TRIA (20,30,40)
Sec.
Tab.2
Alternative configurations
PC
CRT TV
CRT monitor
LCD TV
LCD monitor
Total WEEE
Config.-1
8558
8921
9263
4666
4313
35721
Config.-2
9549
9602
9559
5202
4451
38363
Config.-3
9954
10323
10530
4864
4682
40353
Config.-4
10332
9853
10296
4980
5272
40733
Tab.3
WEEEtypes
Output types
Sales price (€/kg)
Amount (kg)
Revenue of Config.-1 (€)
Revenue of Config.-2 (€)
Revenue of Config.-3 (€)
Revenue of Config.-4 (€)
PC
Precious PCB
4.25
0.86
31277.66
34901.60
36381.87
37763.46
Plastic
0.2
0.34
581.91
649.33
676.87
702.58
Metal (Fe)
0.32
5.11
13993.22
15614.52
16276.78
16894.89
Cable and wire
1.5
0.18
2310.53
2578.23
2687.58
2789.64
CPU
30
0.02
5134.50
5729.40
5972.40
6199.20
Memory
5
0.04
1711.50
1909.80
1990.80
2066.40
Battery
-0.2
0.05
-85.58
-95.49
-99.54
-103.32
CD driver
0.31
0.86
2281.43
2545.76
2653.74
2754.51
Floppy driver
0.31
0.37
981.55
1095.27
1141.72
1185.08
Power supply
0.37
1.32
4179.48
4663.73
4861.53
5046.15
Loudspeaker
0.07
0.04
23.96
26.74
27.87
28.93
Hard drive
1.35
0.5
5776.31
6445.58
6718.95
6974.10
Rest
-0.02
0.02
-3.42
-3.82
-3.98
-4.13
LCD TV
Precious PCB
4.25
0.05
991.50
1105.36
1033.62
1058.25
Normal PCB
1.5
0.07
489.92
546.18
510.73
522.90
Cheap PCB
0.34
0.23
364.87
406.77
380.37
389.44
Plastic
0.2
1.07
998.50
1113.16
1040.92
1065.72
Metal (Fe)
0.32
0.56
836.13
932.14
871.65
892.42
Mixed metal (Fe)
0.44
0.75
1539.75
1716.56
1605.15
1643.40
Cable and wire
1.5
0.07
489.92
546.18
510.73
522.90
Loudspeaker
0.07
0.01
3.27
3.64
3.40
3.49
LCD Panel
0.25
0.52
606.57
676.22
632.33
647.40
Film
0.6
0.14
391.94
436.94
408.58
418.32
CCFL back light
0.1
1.14
531.91
592.99
554.51
567.72
Rest
-0.02
0.01
-0.93
-1.04
-0.97
-1.00
LCD Monitor
Precious PCB
4.25
0.05
916.53
945.86
995.01
1120.34
Normal PCB
1.5
0.28
1811.50
1869.46
1966.61
2214.32
Cheap PCB
0.34
0.33
483.93
499.41
525.37
591.54
Plastic
0.2
1.73
1492.33
1540.08
1620.11
1824.18
Metal (Fe)
0.32
2.66
3671.31
3788.78
3985.66
4487.70
Mixed metal (Fe)
0.44
0.39
740.13
763.81
803.50
904.71
Cable and wire
1.5
0.08
517.57
534.13
561.89
632.66
Loudspeaker
0.07
0.2
60.38
62.32
65.55
73.81
LCD Panel
0.25
0.55
593.05
612.03
643.83
724.93
Film
0.6
0.11
284.66
293.77
309.04
347.97
CCFL back light
0.1
0.85
366.61
378.34
398.00
448.14
Rest
-0.02
0.01
-0.86
-0.89
-0.94
-1.05
CRT TV
Cheap PCB
0.34
1.31
3973.46
4276.78
4597.86
4388.35
Plastic
0.2
5.14
9170.89
9870.96
10612.04
10128.47
Metal (Fe)
0.32
0.35
999.16
1075.44
1156.18
1103.49
Cable and wire
1.5
1.54
20607.74
22180.85
23846.13
22759.51
CRT
-0.07
23.6
-14737.66
-15862.67
-17053.60
-16276.50
Deflection unit
1.13
0.78
7863.06
8463.29
9098.69
8684.08
Shadow mask
0.15
1.47
1967.10
2117.26
2276.22
2172.50
Ray gun
0.15
0.03
40.14
43.21
46.45
44.34
Rest
-0.02
0.05
-8.92
-9.60
-10.32
-9.85
CRT Monitor
Cheap PCB
0.34
1.81
5700.70
5882.55
6479.92
6336.16
Plastic
0.2
2.71
5020.76
5180.92
5707.04
5580.43
Metal (Fe)
0.32
0.83
2460.36
2538.84
2796.66
2734.62
Cable and wire
1.5
0.91
12644.54
13047.90
14372.90
14054.04
CRT
-0.07
8.16
-5291.25
-5460.04
-6014.51
-5881.08
Deflection unit
1.13
0.79
8269.44
8533.23
9399.77
9191.24
Shadow mask
0.15
0.78
1083.82
1118.39
1231.96
1204.63
Ray gun
0.15
0.03
41.69
43.02
47.38
46.33
Rest
-0.02
0.02
-3.71
-3.82
-4.21
-4.12
Tab.4
Performance criteria
Source
Sum of squares
df
Mean square
F
Sig.
TD
Between groups
1.582E+ 08
3
5.273E+ 07
86.68
0.000
Within groups
2.190E+ 07
36
608346.89
Total
1.801E+ 08
39
TR
Between groups
3.402E+ 09
3
1.134E+ 09
29.73
0.000
Within groups
1.373E+ 09
36
3.815E+ 07
Total
4.775E+ 09
39
Tab.5
Performance criteria
Alternative configurations
1
2
3
TD
Config.-1
35721.00
Config.-2
38362.80
Config.-3
40353.10
Config.-4
40732.80
TR
Config.-1
146144.88
Config.-2
158459.36
Config.-3
167297.84
Config.-4
169654.32
Tab.6
Performance criteria
Alternative configurations
PC
CRT TV
CRT Monitor
LCD TV
LCD Monitor
Total WEEE
TD
Config.-1 wo/C
8558
8921
9263
4666
4313
35721
Config.-1 w/C
17236
7714
7826
7167
7500
47444
TR
Config.-1 wo/C
68163.05
29874.98
29926.34
7243.34
10937.16
146144.88
Config.-1 w/C
137289.91
25832.64
25283.00
11126.36
19019.01
218550.92
Tab.7
1
Dinler E, Güngör Z. Planning decisions for recycling products containing hazardous and explosive substances: A fuzzy multi-objective model. Resources, Conservation and Recycling, 2017, 117(Part B): 93–101 https://doi.org/ 10.1016/j.resconrec.2016.11.012
2
EC. Directive 2000/53/EC of the European Parliament and of the Council of 18 September 2000 on end-of life vehicles. Official Journal of the European Communities, 2000, L 269: 34–42
3
EU. Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. Official Journal of the European Union, 2003, L 37: 19–23
4
EU. Directive 2011/65/EU of the European Parliament and of the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (recast). Official Journal of the European Union 2011, L 174: 88–110
5
EU. Directive 2012/19/EU of the European Parliament and of the Council of 4 July 2012 on waste electrical and electronic equipment (WEEE) (recast). Official Journal of the European Union, 2012, L 197: 38–71
6
EU. Directive 2002/96/EC of the European Parliament and of the Council of 27 January 2003 on waste electrical and electronic equipment (WEEE). Official Journal of the European Union, 2003, L 37: 24–38
7
Kang H Y, Schoenung J M. Electronic waste recycling: A review of U.S. infrastructure and technology options. Resources, Conservation and Recycling, 2005, 45(4): 368–400 https://doi.org/10.1016/j.resconrec.2005.06.001
Ilgin M A, Gupta S M. Environmentally conscious manufacturing and product recovery (ECMPRO): A review of the state of the art. Journal of Environmental Management, 2010, 91(3): 563–591 https://doi.org/10.1016/j.jenvman.2009.09.037
10
Gungor A, Gupta S M. Issues in environmentally conscious manufacturing and product recovery: A survey. Computers & Industrial Engineering, 1999, 36(4): 811–853 https://doi.org/10.1016/S0360-8352(99)00167-9
Gungor A, Gupta S M. A solution approach to the disassembly line balancing problem in the presence of task failures. International Journal of Production Research, 2001, 39(7): 1427–1467 https://doi.org/10.1080/00207540110052157
13
Altekin F T, Kandiller L, Ozdemirel N E. Profit-oriented disassembly-line balancing. International Journal of Production Research, 2008, 46(10): 2675–2693 https://doi.org/10.1080/00207540601137207
14
Güngör A, Gupta S M. Disassembly line in product recovery. International Journal of Production Research, 2002, 40(11): 2569–2589 https://doi.org/10.1080/00207540210135622
15
Ilgin M A, Gupta S M, Battaïa O. Use of MCDM techniques in environmentally conscious manufacturing and product recovery: State of the art. Journal of Manufacturing Systems, 2015, 37(Part 3): 746–758 https://doi.org/10.1016/j.jmsy.2015.04.010
16
Pérez-Belis V, Bovea M D, Ibáñez-Forés V. An in-depth literature review of the waste electrical and electronic equipment context: Trends and evolution. Waste Management & Research, 2015, 33(1): 3–29 https://doi.org/10.1177/0734242X14557382
17
UNEP. Call for Global Action on E-waste. Nairobi: United Nations Environment Programme, 2006
18
UNEP. E-waste 2.0: Recycling for Sustainability. Nairobi: United Nations Environment Programme, 2016
19
Seliger G, Kernbaum S. Planning for remanufacturing and recycling. In: Seliger G, ed. Sustainability in Manufacturing: Recovery of Resources in Product and Material Cycles. Berlin: Springer, 2007, 313–341
20
Opalić M, Kljajin M, Vučković K. Disassembly layout in WEEE recycling process. Strojarstvo. Journal for Theory and Application in Mechanical Engineering, 2010, 52(1): 51–58
21
Lim H H, Noble J S. The impact of facility layout on overall remanufacturing system performance. International Journal of Industrial and Systems Engineering, 2006, 1(3): 357–371 https://doi.org/10.1504/IJISE.2006.009793
22
Ma H, Tang Y, Li L, Li C. An optimal solution to the remanufacturing facility layout problem. In: Proceedings of 11th World Congress on Intelligent Control and Automation. Shenyang, China: IEEE, 2014, 1729–1734
23
Noble J S, Lim H H. Evaluation of facility layout alternatives for a remanufacturing environment. In: Proceedings of Environmentally Conscious Manufacturing II, 2002.Boston, MA: SPIE, 2002, 158–166
24
Scharke H. Comprehensive Information Chain for Automated Disassembly of Obsolete Technical Appliances. 1st ed. Berlin: GITO Verlag, 2003
25
Opalić M, Vučković K, Panić N. Consumer electronics disassembly line layout. Polimeri, 2004, 25(1–2): 20–22
26
Limaye K, Caudill R J. System simulation and modeling of electronics demanufacturing facilities. In: Proceedings of International Symposium on Electronics and the Environment, 1999.Danvers, MA: IEEE, 1999, 238–243
27
Hesselbach J, Westernhagen K V. Disassembly simulation for an effective recycling of electrical scrap. In: Proceedings of First International Symposium on Environmentally Conscious Design and Inverse Manufacturing, 1999.Tokyo: IEEE, 1999, 582–585
28
Ranky P G, Morales L C, Caudill R J. Lean disassembly line layout, and network simulation models. In: Proceedings of International Symposium on Electronics and the Environment, 2003.Boston, MA: IEEE, 2003, 36–41
29
Herrmann C, Luger T, Ohlendorf M. SiDDatAS- Analysis and economic evaluation of alternative disassembly system configurations. In: Proceedings of Fourth International Symposium on Environmentally Conscious Design and Inverse Manufacturing, 2005.Tokyo: IEEE, 2005, 210–215
30
Sim E, Kim H, Park C, Park J. Performance analysis of alternative designs for a vehicle disassembly system using simulation modeling. In: Baik D K, ed. Systems Modeling and Simulation: Theory and Applications. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005, 59–67
31
Wiendahl H P, Scholz-Reiter B, Bürkner S, Scharke H. Flexible disassembly systems-layouts and modules for processing obsolete products. Proceedings of the Institution of Mechanical Engineers. Part B, Journal of Engineering Manufacture, 2001, 215(5): 723–732 https://doi.org/10.1243/0954405011518520
Capraz O, Polat O, Gungor A. Planning of waste electrical and electronic equipment (WEEE) recycling facilities: MILP modelling and case study investigation. Flexible Services and Manufacturing Journal, 2015, 27(4): 479–508 https://doi.org/10.1007/s10696-015-9217-3
34
Chung C A. Simulation Modeling Handbook: A Practical Approach. Boca Raton, FL: CRC Press, 2003
35
Wright T P. Factors affecting the cost of airplanes. Journal of the Aeronautical Sciences, 1936, 3(4): 122–128 https://doi.org/10.2514/8.155