Improvement Potential for Energy Consumption in Discrete Part Production Machines

a b s t r a c tCurrently available life cycle assessment (LCA) tools provide only a rough estimation of the environmental impact of different manufacturing operations (e.g. energy consumption). To address this limitation, a web-based and application programming interface (API) based process analysis software tools were developed to estimate the energy consumption of a computer numerically controlled (CNC) machine tool operation and to evaluate its environmental impact as a first step towards sustainable manufacturing analysis. Acceleration/deceleration of machine tool axes and the direction of axes movement were considered to estimate the total energy demand and processing time of the machine tool operation. Several tool path generation schemes were tested to analyze the energy consumption and resulting green house gas emission of CNC machine tool operation. It showed that tool path generation schemes affect the amount of energy and the processing time required to machine the same part, and location of the machining resulted in different amount and characteristics of green house gas emission.

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“…The tare energy still accounts for larger portion of the total energy consumption than the material removing behavior does [18]. Fig.…”

Section: Breakdown Of Energy Consumptionmentioning

confidence: 93%

Software-based tool path evaluation for environmental sustainability

Kong

Choi

Yasui

et al. 2011

Journal of Manufacturing Systems

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“…Substantial research has been targeted to document, analyze and reduce process emissions for a wide range of available and emerging manufacturing processes (Devoldere et al, 2007) (Herrman et al, 2007).…”

Section: Related Workmentioning

confidence: 99%

Energy Audit Analysis by Business Intelligence Application

Firdaus

Amrina

2015

Sinergi

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INTRODUCTIONAn energy audit consists of a detailed examination of how a facility uses energy, what the facility pays for that energy, and finally, a recommended program for changes in operating practices or energy-consuming equipment that will cost-effectively save money on energy bills. The energy audit is sometimes called an energy survey or an energy analysis, so that it is not hampered with the negative connotation of an audit in the sense of a financial audit. Energy audits are performed by several different groups. Large commercial or industrial customers may hire an engineering consulting firm to perform a complete energy audit. Other companies may elect to hire an energy manager or set up an energy management team whose job is to conduct periodic audits and to keep up with the available energy efficiency technology. The Indonesian Ministry of Energy and Mineral

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“…These comprise coolant pumps, lubrication supply and compressed air supply that perform the auxiliary processes [33,42,43]. Studies show that less than 13 % of energy expenditures have been utilized for productive operations [44].…”

Section: Energy Efficiency At the Machine Levelmentioning

confidence: 99%

On a generalized approach to manufacturing energy efficiency

Fysikopoulos

Pastras

Alexopoulos

et al. 2014

Int J Adv Manuf Technol

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Energy efficiency has become a very significant factor, requiring its inclusion in the manufacturing decision-making attributes. This paper proposes a generalized approach to manufacturing energy efficiency. The basic element of the approach is the division of energy efficiency definition and study into four manufacturing levels, namely process, machine, production line, and factory. Process-level definitions are provided for the majority of manufacturing processes. A machine-level study indicates and solves difficulties, generated by the workpiece geometry, and points out the interaction with the process level through factors, such as the process time. Moreover, machine tool peripherals are responsible for a significant portion of the consumed energy, and classification based on the dependence of their consumption on process variables is required. Studies made on the production line and factory levels show that energy efficiency, at these levels, is heavily dependent on production planning and scheduling and can be improved through the appropriate utilization of machines, with the inclusion of shutdown and eco-modes. Finally, a case study is presented, showing that many of the difficulties towards the optimization of energy efficiency can be dealt with successfully, using the proposed generalized approach.

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Improvement Potential for Energy Consumption in Discrete Part Production Machines

Cited by 90 publications

References 2 publications

Software-based tool path evaluation for environmental sustainability

Software-based tool path evaluation for environmental sustainability

Energy Audit Analysis by Business Intelligence Application

On a generalized approach to manufacturing energy efficiency

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