Energy metrics for product assembly equipment and processes

A key factor deciding the capacity to increase the sustainability of final products is the energy efficiency. The energy embodied in a product is an aggregation of all of the energy embodied in the products' components and subsystems, expended through its manufacturing processes and logistical...

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Veröffentlicht in:Journal of cleaner production 2014-02, Vol.65, p.142-151
Hauptverfasser: Feng, Shaw C., Senthilkumaran, Kumaraguru, Brown, Christopher U., Kulvatunyou, Boonserm
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container_end_page 151
container_issue
container_start_page 142
container_title Journal of cleaner production
container_volume 65
creator Feng, Shaw C.
Senthilkumaran, Kumaraguru
Brown, Christopher U.
Kulvatunyou, Boonserm
description A key factor deciding the capacity to increase the sustainability of final products is the energy efficiency. The energy embodied in a product is an aggregation of all of the energy embodied in the products' components and subsystems, expended through its manufacturing processes and logistical activities. Currently, accurate estimation of this energy metric is hindered due to the unavailability of energy use data traceable to individual processes and equipment associated with the product's assembly. In this paper, we propose using minimally-required energy to compute energy efficiency of a product assembly process. Based on the proposed approach, efficiency metrics established on the process, product, material and equipment characteristics have been presented at the assembly activity and equipment level. A case study has been presented for a hybrid laser welding process to demonstrate the computational methods used to arrive at these efficiency metrics. Major contributions of this paper are the metrics development and exemplifying the metrics through an actual assembly process (hybrid laser welding) case study. We will explain how these metrics can provide industries with a capability to identify opportunities to improve their sustainability performance across their assembly processes. •Metrics development and exemplifying the metrics through an assembly process.•Efficiency metrics on the process, product, material and equipment characteristics.•Computational theoretical minima to identify energy saving opportunities.•Sustainability performance improvement across the assembly processes.
doi_str_mv 10.1016/j.jclepro.2013.09.044
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subjects Animal, plant and microbial ecology
Applied ecology
Applied sciences
Assembly equipment
Assembly process
Biological and medical sciences
Conservation, protection and management of environment and wildlife
Energy metrics
Environment and sustainable development
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Pollution
Sustainability measurement
Sustainable manufacturing
title Energy metrics for product assembly equipment and processes
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