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Energy Resources Use Metrics, Rahul Y. Nehete
Energy Resources Use Metrics, Rahul Y. Nehete
Theses and Dissertations--Mechanical Engineering
Energy resources use has been considered as a key component of sustainable development. Data related to global, regional, state, sector, industry and process demonstrate that a significant reduction of energy resources for a given production rate in manufacturing processes requires an introduction of transformational technologies at the process level, propagating the impact to higher scales, leading not just to a gradual improvement of traditional technologies but to more sustainable development.
The study offers two approaches to the formulation of the limits of energy use in the context of sustainable development. The first is to construct a map of key selected …
A Metrics-Based Sustainability Assessment Of Cryogenic Machining Using Modeling And Optimization Of Process Performance, Tao Lu
Theses and Dissertations--Mechanical Engineering
The development of a sustainable manufacturing process requires a comprehensive evaluation method and fundamental understanding of the processes. Coolant application is a critical sustainability concern in the widely used machining process. Cryogenic machining is considered a candidate for sustainable coolant application. However, the lack of comprehensive evaluation methods leaves significant uncertainties about the overall sustainability performance of cryogenic machining. Also, the lack of practical application guidelines based on scientific understanding of the heat transfer mechanism in cryogenic machining limits the process optimization from achieving the most sustainable performance.
In this dissertation, based on a proposed Process Sustainability Index (ProcSI …