C. Duan, Yaqun He, Yuemin Zhao, X. Wen, Haifeng Wang, S. Song
{"title":"The fundamental study on the reutilization of electronic scrap by passive pulsed air classifiers","authors":"C. Duan, Yaqun He, Yuemin Zhao, X. Wen, Haifeng Wang, S. Song","doi":"10.1109/ISEE.2005.1437003","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437003","url":null,"abstract":"As the electric and electronic technology being developed so quickly, the amount of electronic scrap (ES) becomes more and more enormous. The reutilization of ES is an urgent and challenging task achieved by adopting high efficiency, environmental friendly separation methods for reuse and recycle of electronic scrap. A practical and efficient separation method using passive pulsed air classifiers is introduced in this paper. In the pulsing air classifier, expansions and contractions separation of the throats impose a distance-varying airflow which alternately accelerates and decelerates the particles. Dynamics of the moving particles were analyzed by applying of advanced high-speed dynamic analyzing equipment. The ANSYS simulation results show that the accelerating region and symmetrical vortexes in the passive pulsed air separator are the basic reasons to achieve excellent separation based on density-dominant difference in passive pulsed air classifier. The results of the laboratory experiments indicate that the pulsing classifiers achieve more effective results of separation and get a wider range of operating velocities of the airflow than the non-pulsing ones. The acceleration and deceleration phenomenon of the air currents in the column of the passive pulsed separator provides a density dominant separation. It is concluded that this is favorable for electronic scrap processing.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129182280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Whitley, M. Watson, B. Hilton, M. Martínez, C. Banks, R. Hays
{"title":"A non-profit/municipality/corporate partnership: innovative model for collecting end-of-life electronics","authors":"A. Whitley, M. Watson, B. Hilton, M. Martínez, C. Banks, R. Hays","doi":"10.1109/ISEE.2005.1436988","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1436988","url":null,"abstract":"Residential collection rates and public awareness of properly disposing/recycling of computer equipment are still low. Although many computer collection schemes exist, e.g. OEM recycling offers, donation, resale, municipality events, etc., participation rates suggests residential users are continuing to store outdated computer equipment and/or disposing of equipment improperly. In order to continue to build awareness for properly recycling end-of-life computer equipment and investigate innovative partnerships, several interested stakeholders agreed in early 2004 to form a partnership that would leverage the distinctive experiences and skills of each partner. The goals of the partnership, and subsequent pilot program, were to: (1) improve the collection volumes of residential computer equipment in the target area; (2) provide additional methods for residential consumers to reuse/recycle their electronics; (3) conduct surveys that would provide behavior/perception data and lessons learned for other stakeholders and interested communities; (4) continue to educate the public through a highly-publicized program; and (5) develop a best practices guidebook for other communities to use when launching similar programs. This unique partnership consisted of a non-profit organization, a municipality, and a private/corporate entity - in this case, Goodwill Industries of Central Texas, the City of Austin, and Dell Inc. A one-year pilot program, titled the Austin Computer Recycling Project, was launched in October 2004 in order to meet the goals of the project and gather and evaluate data to determine program effectiveness, track volumes of equipment collected, record demographics and program participants, understand consumer behavior and barriers to recycling, and test the underlying fundamentals of such partnerships. A second paper is published to evaluate the results of the pilot program.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132078540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Todd Brady, Deva Bodas, Doug Gabel, Brian Griffith, Tom Niemela, David Perchlik
{"title":"PC power consumption - a challenge and opportunity","authors":"Todd Brady, Deva Bodas, Doug Gabel, Brian Griffith, Tom Niemela, David Perchlik","doi":"10.1109/ISEE.2005.1437010","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437010","url":null,"abstract":"As Moore's law drives increasing computing power year after year, managing the power consumption of the PC becomes an increasing challenge. With such challenges come opportunities. Intel has been a leader in developing innovative solutions to address and resolve power challenges by tackling the issue at multiple levels: silicon, package, circuit design, platform and software. Some of the recent accomplishments are explained in this paper. In addition, future challenges that remain are identified.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116702692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sony's Green Partner program","authors":"K. Hirai, J. Mabee, D. Smith, M. Small","doi":"10.1109/ISEE.2005.1436993","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1436993","url":null,"abstract":"Increased regulatory attention on substances used in electronic products has changed the way electronics industry manages its supply chain. As manufacturers expand their scope of responsibility, new types of supply chain management programs have been examined and initiated. This paper describes Sony's challenges with its global supply chain to control chemicals and materials in its products by making changes to its conventional ways of business. Regulatory background, rationale for the initial launch, reestablishing vendor relationships with new focus on environment, setting threshold limits for chemicals of concern, specifying the testing protocol and technology used, database construction are examined in this paper. Results and prospectus of the future as a sustainable business practice are covered as means of sharing lessons learned from initiation of its supply chain management program. On its course of implementation of the program, it was revealed that effects from such a green procurement program are not limited to a relationship between a manufacturer and its suppliers, but have also placed on multi-industries, giving new opportunities for some industries while restricting business for others. While many initiatives to standardize and simplify the environmental compliance system for products have been taken, how to tackle the green procurement in advance of regulatory requirements can determine the long term survival of each electronic manufacturer.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131275656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"E-waste and the consumer: improving options to reduce, reuse and recycle","authors":"C. N. Cairns","doi":"10.1109/ISEE.2005.1437033","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437033","url":null,"abstract":"Growth in the electronics sector and rapid changes in technology mean that more consumers are generating growing volumes of waste electronic equipment, much of which is still operational. Faced with a limited and fragmented recycling and reuse infrastructure, many consumers are storing old equipment in their homes or discarding it with their regular trash. Consumers union has drawn from its own tests of electronics products, consumer survey data and research and analysis of existing e-waste recycling programs to assess the need for changes that will enable consumers to reduce, reuse and recycle greater volumes of this growing category of waste. Our findings suggest that more workable solutions are needed at every stage of the product life cycle to protect consumers, public health and the environment.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127734463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Opportunities and recommendations for reducing the energy consumption of consumer electronics products","authors":"N. Horowitz, C. Calwell, S. Foster","doi":"10.1109/ISEE.2005.1437008","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437008","url":null,"abstract":"Over the past few years entire new categories of consumer electronics products including DVD players, TiVo recorders, broadband modems, and large high definition TVs have entered the market place. While these products provide features consumers value, they consume considerable quantities of electricity. Residential electricity use by consumer electronics products has essentially doubled over the past decade, and is now responsible for up to 15% of household electricity use. Unlike consumer white goods, (i.e. refrigerators and clothes washers) which have over time made dramatic reductions in their annual energy use, most classes of new electronics products use more power than the ones they are replacing. Part of the reason for this category's escalating power use is that energy efficiency is typically not a consideration during the manufacturer's design process. For example, TV set top boxes used to receive and decode cable or satellite signals operate at essentially full power levels in the middle of the night even though the user is not watching or recording a show. For other product categories such as TVs and computers, the power used during periods of extended inactivity has been successfully reduced, but little progress has been made to address the more significant energy use when the product is being operated. In this paper, we summarize the work of the Natural Resources Defense Council (NRDC) and Ecos Consulting have performed to assess the power consumption of selected consumer electronics products. Per our analysis, if all of today's computers, TVs, and TV set top boxes (STBs) were to meet minimum efficiency requirements recommended by NRDC/Ecos, their combined energy consumption would drop by more than 25%. This has the effect of preventing the need to operate seven large (500 MW) power plants and eliminates the emission of approximately 22 million tons/yr of carbon dioxide, a key global warming pollutant.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134317650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Case study: multi life cycle center for electronic products","authors":"R. Knoth, B. Kopacek, P. Kopacek","doi":"10.1109/ISEE.2005.1437022","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437022","url":null,"abstract":"This case study shows the implementation of a highly innovative re-use and recycling system for waste of electric and electronic equipment (WEEE). This so-called multi life cycle centre will make use of the latest development in automation and information technology in order to obtain an efficient economical and ecological process. In this centre, implemented as pilot plant in Vienna, Austria, WEEE will be transformed back into valuable products. The product groups treated for re-use include IT and telecommunication equipment, consumer electronics, electrical and electronic tools, toys and leisure equipment. Regarding all other product groups the collection and recycling will be organized. The management of the reverse logistic system is based on RFID technology (radio frequency identification). The multi life cycle centre follows the philosophy to recover WEEE at the highest possible level, starting with re-use of the whole product down to the subassembly and component level and finally to the recycling of materials. This approach is unique in the world and we are going to prove that an eco-efficient re-use of WEEE on a large scale can be feasible by using highly sophisticated technologies. The presented paper gives an overview of the various functions of the multi life cycle centre and highlights two key technologies: semi automatic disassembling and reverse logistic based on RFIDs.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134408023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Residential computer usage patterns in Japan and associated life cycle energy use","authors":"E. Williams, Taku Hatanaka","doi":"10.1109/ISEE.2005.1437019","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437019","url":null,"abstract":"Computer purchase, operation and disposition patterns are characterized via a survey of about 1,000 Japanese residential users. The mains purposes are a) to better characterize the energy burden of the national IT infrastructure and b) to understand the status and prospects of the market for used equipment. Results include that the average length between buying new PCs in is 2.9 years, older computers typically spend 2.8 years unused in closets before next disposition (donation, recycling, or other). These and other results are used to estimate that annual life cycle energy burden of home PCs in Japan is 9.7 /spl times/ 10/sup 10/ megajoules (MJ), 0.64% of total energy demand. Considering prospects for the used market, apparently there is a large untapped potential supply of used computers: only about 13% of users reported having sold or purchased a used PC, and 55% said that they had never considered selling a computer. There is likely a \"hole\" in the supply of mid-level used PCs (2-4 years old), with high-end ones (1-2 years old) being sold by power users buying new machines, and low-end ones (5-6 year) coming from storage. Potential demand is less promising: users report many concerns about purchasing used computers, such as warranties, reliability, and desire to have \"my own\" computer. There is likely much higher demand for used PCs in neighboring countries in developing Asia. Prompt reselling of used computers by Japanese users could potentially open a door to supplying inexpensive, quality computers for the export market.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"429 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133849452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of an adaptive fuzzy system for disassembly process planning","authors":"M. Turowski, Ying Tang, M. Morgan","doi":"10.1109/ISEE.2005.1437037","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1437037","url":null,"abstract":"As product lifecycles are getting shorter and shorter, manufacturers are facing a great deal of economic and political pressure to reclaim and recycle their obsolete products. Disassembly, as one of the natural solutions, is of increasing importance in material and product recovery. However, most of the existing works on disassembly process planning use a deterministic model to characterize the high levels of uncertainty (e.g., uncertainty in product structure and condition and human factors) inherent in the process. This paper builds upon our previous work (Tang, et al., 2004, Tang, et al. 2005) to explicitly address the dynamics in disassembly using fuzzy Petri nets. An adaptive fuzzy system with an enhanced learning method is proposed to predict the impact of human factors and product uncertainty on disassembly. Simulation software is also developed to validate the proposed method and the robustness of the adaptive fuzzy system.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115620436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Schischke, A. Middendorf, H. Reichl, H. Griese, M. Kasper, K. Ong
{"title":"Green MST design from a designer's perspective: how to base decisions on environmental issues","authors":"K. Schischke, A. Middendorf, H. Reichl, H. Griese, M. Kasper, K. Ong","doi":"10.1109/ISEE.2005.1436984","DOIUrl":"https://doi.org/10.1109/ISEE.2005.1436984","url":null,"abstract":"Eco-design is a frequently applied concept, but mostly as a case study or based on a given product, which has to be improved. Rarely design for environment is used as part of the development of a new product, because environmental assessments usually need a sound data basis; see e.g. common life cycle analysis concepts. Hence, this paper presents an integrated approach, how to deal with environmental issues during product design, when knowledge about the later product is still fairly limited - and the possibility to implement major changes is still given. The approach presented focuses on lean and smart measures, which work without additional extensive data acquisition and scenarios. However, they impose uncertainties, but remain applicable for the designer. This approach is shown for one of the most advanced tasks in electronics: Design of micro systems technology (MST) devices, known also as micro electro mechanical systems (MEMS). Furthermore, overlaps with other disciplines, such as microelectronics design is inevitable.","PeriodicalId":397078,"journal":{"name":"Proceedings of the 2005 IEEE International Symposium on Electronics and the Environment, 2005.","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123851807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}