scholarly journals The Research on Shredding Models of Light Metal Scrap of End-of-life Vehicles and Household Appliances

IERI Procedia ◽  
2012 ◽  
Vol 1 ◽  
pp. 146-154 ◽  
Author(s):  
Liu Jianxiong ◽  
Peng Juntao ◽  
Yang Bangcheng ◽  
Hou Jie
Keyword(s):  
End Of Life ◽  
Light Metal ◽  
Metal Scrap ◽  
Household Appliances

A Data Envelopment Analysis Approach for Household Appliances and Automobile Recycling

2011 ◽  
pp. 378-387
Author(s):  
Elif Kongar ◽  
Surendra M. Gupta
Keyword(s):  
Data Envelopment Analysis ◽  
End Of Life ◽  
Technical Efficiency ◽  
Value Added ◽  
Performance Criteria ◽  
Environmental Damage ◽  
Data Envelopment ◽  
Household Appliances ◽  
Technology Products ◽  
Technological Developments

Rapid technological developments are leading to a significant decrease in the demand for old technology products. As a result, old technology products are rushed to their end-of-lives (EOLs) even though they still function properly and have the ability to satisfy stated needs. It is therefore important to find environmentally and economically benign ways to handle this accumulating waste to regain the value added to such products and to reduce the environmental damage. However, EOL recovery options are not always economically justifiable due to the complexity and uncertainty involved in the process. To reduce these setbacks, it is crucial to perform an analysis prior to taking any action and rank the products according to the importance of their EOL processing outcomes. To this end, this chapter proposes a data envelopment analysis (DEA) algorithm to determine the technical efficiency of end-of-life processing of household appliances and automobiles depending on various tangible and intangible performance criteria.

Solid State Recycling of Aluminium Sheet Scrap by Means of Spark Plasma Sintering

2015 ◽  
Vol 639 ◽  
pp. 493-498 ◽  
Author(s):  
Dimos Paraskevas ◽  
Kim Vanmeensel ◽  
Jef Vleugels ◽  
Wim Dewulf ◽  
Joost R. Duflou
Keyword(s):  
Solid State ◽  
Oxide Film ◽  
Spark Plasma Sintering ◽  
Sheet Metal ◽  
Light Metal ◽  
Metal Scrap ◽  
Mechanical Pressure ◽  
Microstructural Investigation ◽  
Plasma Sintering ◽  
Spark Plasma

Various solid state or ‘meltless’ recycling techniques have recently been developed for light metal scrap in form of chips. Main objective of all approaches is to bypass the need for remelting in order to reduce the overall required energy, and to avoid the material losses that occur during this step. Within this paper, the use of Spark Plasma Sintering (SPS) is proposed as a novel solid state recycling/welding technique for sheet metal scrap. Aluminium 5182 alloy scrap, derived from sheet metal, was successfully consolidated into a fully dense billet via SPS. The use of pulsed electric current heating, in temperatures well below the alloy melting point, combined with mechanical pressure, enchased the densification process resulting into a void-less material. The recycled SPS sample was fully densified and microstructural investigation has been performed in order to confirm effective oxide film breakage. The results illustrate the effectiveness of SPS in aluminium scrap consolidation, also in form of sheet scrap, providing additional means in solid state recycling. The involved mechanisms that contribute to oxide film fracture and scrap consolidation in SPS are being discussed.Keywords: Aluminium, recycling, spark plasma sintering (SPS)

A Data Envelopment Analysis Approach for Household Appliances and Automobile Recycling

2010 ◽  
pp. 367-377
Author(s):  
Elif Kongar ◽  
Surendra M. Gupta
Keyword(s):  
Data Envelopment Analysis ◽  
End Of Life ◽  
Technical Efficiency ◽  
Value Added ◽  
Performance Criteria ◽  
Environmental Damage ◽  
Data Envelopment ◽  
Household Appliances ◽  
Technology Products ◽  
Technological Developments

Rapid technological developments are leading to a significant decrease in the demand for old technology products. As a result, old technology products are rushed to their end-of-lives (EOLs) even though they still function properly and have the ability to satisfy stated needs. It is therefore important to find environmentally and economically benign ways to handle this accumulating waste to regain the value added to such products and to reduce the environmental damage. However, EOL recovery options are not always economically justifiable due to the complexity and uncertainty involved in the process. To reduce these setbacks, it is crucial to perform an analysis prior to taking any action and rank the products according to the importance of their EOL processing outcomes. To this end, this chapter proposes a data envelopment analysis (DEA) algorithm to determine the technical efficiency of end-of-life processing of household appliances and automobiles depending on various tangible and intangible performance criteria.

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