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Comparison of Life Cycle Assessment of Two Toasters

[+] Author Affiliations
Raghunathan Srinivasan, Gaurav Ameta

Washington State University, Pullman, WA

Paper No. DETC2011-48772, pp. 1011-1017; 7 pages
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 31st Computers and Information in Engineering Conference, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5479-2
  • Copyright © 2011 by ASME


The objective of this paper is to determine and compare the environmental impacts of two toasters: standard and eco-friendly. The most rapidly growing sector for the e-waste world comes from Electronic household products. More than 2 million tons of electronic products are disposed off as solid waste to landfills in the US alone. The demand for energy supplies has been rapidly increasing in the past decade. Strict legislative measures should be enforced to protect the environment by making industries collect back the manufactured products at the End-of-Life (EOL) from the users and recycle the products. If these necessary steps are not taken, then these e-wastes will impose serious threat to society and the environment. In order to re-design environmentally friendly products and facilitate sustainable take-back planning, current products need to be evaluated for their environmental impacts. One of the widely used methodologies to assess the environmental impacts of a product is called Life Cycle Assessment (LCA). LCA is a cradle to grave approach for assessing the environmental impacts of a product. The cradle to grave approach includes raw material phase, manufacturing and assembly phase, use phase, recovery phase and disposal phase. The system boundary for LCA presented in this paper includes material phase, manufacturing phase, use-phase and disposal phase. The functional unit for the LCA is entire life of the toaster which is one year based on manufacturer’s warranty which also includes the rate of usage. The environmental impacts from the two toasters as presented in this paper include eutrophication, acidification, energy-use and global warming. The use phase energy impact is experimentally determined.

Copyright © 2011 by ASME



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