Product development continues to be at the core of manufacturing industries and the heartland of global competition in the 21st century. The e-commerce technologies will have a profound impact on the practice and performance of product development. This paper examines the roles of web applications in collaborative product design and manufacture. The emphasis is placed not only upon the geographical and disciplinary dimensions, but also on the time dimension of collaboration. A case study is used to demonstrate how synchronised web applications can be used to facilitate collaborative product definition. The project team members share the common workspace that maintains the integrity and consistency of product and process information.
A comprehensive field data collection campaign is reported on in which operational data are being obtained from microturbine generators located in the South Coast Air Quality Management District (AQMD). The data obtained are archived in a SQL database, which provides the ability to look at various performance aspects as a function of many parameters interactively on the Internet. An overview of the program is provided along with details regarding the data collection and archiving strategies. To provide a framework relative to optimal operation of these systems in the region, economics associated with various operational schedules as a function of various rate structures in Southern California are provided. In addition to quantitative operational characteristics and performance results, some general end-user impressions of the technology and of the overall installation process are also documented.Details from three representative sites are presented. BACKGROUNDMicroturbine generators (MTGs) are being deployed worldwide for a number of applications. MTGs enable end users to generate their own power during times when power is in short supply, thus alleviating peak stress on the grid, reducing the likelihood of rolling blackouts that utilities may have to impose, and displacing emissions from the highest-emitting and least energy-efficient peaking units.MTGs are available from a number of manufacturers including Bowman, Capstone, Elliott, Ingersol Rand, and Turbec, and represent an option for on-site power generation technology (known generically as "distributed generation"). MTGs can, in principle, be installed relatively quickly and require little maintenance. In addition to providing electricity, a
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