Environmental Impacts of Selective Laser Melting: Do Printer, Powder, Or Power Dominate?

In the below linked research paper published by Yale University's Journal of Industrial Ecology (now owned and managed by the International Society of Industrial Ecology), researchers from the University of Nottingham and Dartmouth University use a Yokogawa Test&Measurement CW240 Clamp-On Power Analyzer to measure the real power consumption of the investigated printing systems.

  • Title: Environmental Impacts of Selective Laser Melting: Do Printer, Powder, Or Power Dominate?
  • Authors: Jeremy Faludi, Martin Baumers, Ian Maskery, Richard Hague
  • Abstract: This life cycle assessment measured environmental impacts of selective laser melting, to determine where most impacts arise: machine and supporting hardware; aluminum powder material used; or electricity used to print. Machine impacts and aluminum powder impacts were calculated by generating life cycle inventories of materials and processing; electricity use was measured by in‐line power meter; transport and disposal were also assessed. Impacts were calculated as energy use (megajoules; MJ), ReCiPe Europe Midpoint H, and ReCiPe Europe Endpoint H/A. Previous research has shown that the efficiency of additive manufacturing depends on machine operation patterns; thus, scenarios were demarcated through notation listing different configurations of machine utilization, system idling, and postbuild part removal. Results showed that electricity use during printing was the dominant impact per part for nearly all scenarios, both in MJ and ReCiPe Endpoint H/A. However, some low‐utilization scenarios caused printer embodied impacts to dominate these metrics, and some ReCiPe Midpoint H categories were always dominated by other sources. For printer operators, results indicate that maximizing capacity utilization can reduce impacts per part by a factor of 14 to 18, whereas avoiding electron discharge machining part removal can reduce impacts per part by 25% to 28%. For system designers, results indicate that reductions in energy consumption, both in the printer and auxiliary equipment, could significantly reduce the environmental burden of the process.

To access the full research paper, click here: Environmental Impacts of Selective Laser Melting: Do Printer, Powder, Or Power Dominate?

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Clamp-on Power Analyzer CW240

The CW240 is a portable three-phase power analyzer for field testing, maintenance, and service of equipment such as transformers, motors, and electrical distribution systems. It is a complete tool for measuring power quality, enhancing energy efficiency, assessing and improving equipment life cycles.

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The Yokogawa CW500 is a portable power analyzer that logs transient power phenomena in addition to measuring single to three phase power. 

 

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Accessories for digital power analyzers include various voltage and current transformers, clamp-on current probes, and a selection of test leads.

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Measure characteristics of devices that generate, transform or consume electricity. Also called power meters or wattmeters, these devices measure parameters such as true power (watts), power factor, harmonics, and efficiency.

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Yokogawa's Power Analyzer software manages numeric, waveform, and harmonic data measurements. It enables data logging and instrument configuration from your computer.

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