A process based modeling approach for economic and environmental assessment of nano-assisted manufacturing Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/w9505461f

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  • Micro- and nanotechnologies are promising advancements across many industrial sectors, including alternative energy, chemical processing, and healthcare. In particular, a focus of research has been in manufacturing process development aimed at microdevice cost reduction and quality improvement. Microdevices take advantage of enhanced heat and mass transfer to improve energy and material efficiencies, yet device production uncertainties inhibit broad commercialization. Nickel nanoparticle (NiNP) assisted diffusion brazing has been shown to improve bond qualities and reduce processing time in microlaminated stainless steel devices. However, environmental impacts and cost differentials in comparison to conventional techniques remain largely uncertain. A prior life cycle assessment study compared this novel process to a more traditional diffusion brazing approach using nickel phosphorus electroplated laminae. The study found the former to be less environmentally impactful. A major limitation was in the modeling of the NiNPs, which were assumed to be an equivalent mass of bulk nickel. To extend the prior work, this research develops life cycle inventories for NiNP synthesis and undertakes process-based cost modeling encompassing capital investment and cost-of-goods-sold as a function of annual production volume. Several manufacturing process scenarios are explored and compared on both an environmental and economic cost basis for the production of a microchannel air preheater.
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  • description.provenance : Submitted by Malcolm Brown (brownma@onid.orst.edu) on 2011-07-05T20:50:31Z No. of bitstreams: 1 BrownMalcolmO2011.pdf: 910904 bytes, checksum: 55e284c9bf6eafa939f1ba3876e6790d (MD5)
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  • description.provenance : Rejected by Julie Kurtz(julie.kurtz@oregonstate.edu), reason: Rejecting because the last part of the pretext pages have page numbers creating the first page of your thesis to start on page 5, instead of page one. Everything else looks good! Thanks, Julie on 2011-07-05T21:04:16Z (GMT)
  • description.provenance : Rejected by Julie Kurtz(julie.kurtz@oregonstate.edu), reason: Rejecting because it's not a PDF. Before changing your Word document to one PDF, move the Summary of Relevant Work and List of Acronyms and Abbreviations to appear after the List of Tables. Once revised, open the item that was rejected. Replace the attached file with the revised file and resubmit. Thanks, Julie on 2011-07-05T20:14:19Z (GMT)
  • description.provenance : Submitted by Malcolm Brown (brownma@onid.orst.edu) on 2011-06-29T19:13:56Z No. of bitstreams: 1 BrownMalcolmO2011.pdf: 918775 bytes, checksum: da08d657cad36d84400addea5e7ad749 (MD5)
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  • description.provenance : Submitted by Malcolm Brown (brownma@onid.orst.edu) on 2011-07-05T21:22:13Z No. of bitstreams: 1 BrownMalcolmO2011.pdf: 909146 bytes, checksum: bd518308a3098dbfe241c963940d5c01 (MD5)
  • description.provenance : Rejected by Julie Kurtz(julie.kurtz@oregonstate.edu), reason: Rejecting to revise your name to be consistent throughout the document. Only have one title page, remove the extras especially the one with your telephone number and email address. The pages after the Table of Contents put in the order listed in the thesis guide. Once revised, open the item that was rejected. Replace the attached file with the revised file and resubmit. Thanks, Julie on 2011-07-01T21:04:40Z (GMT)

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