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首页> 外文期刊>International Journal of Sustainable Manufacturing >Energy related environmental impact reduction opportunities in machine design: case study of a laser cutting machine
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Energy related environmental impact reduction opportunities in machine design: case study of a laser cutting machine

机译：机械设计中与能源相关的减少环境影响的机会：激光切割机的案例研究

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摘要

Energy consumption is responsible for a substantial part of the environmental impact generated by industrial production (Gutowski et al, 2006). Currently, minimising the energy consumption is hardly a priority for many machine designers, since they concentrate; primarily on improving functionality, accuracy and safety. Nevertheless, alternative machine designs with improved energy consumption are emerging. This paper investigates the case of a laser cutting machine as common sheet metal processing machine tool. This paper verifies the potential for energy improvement by means of a case study. The analysis covers both the energy consumption during productive and non-productive time. Energy consumption improvement opportunities are identified. For this purpose a conventional CO_2 laser-cutting machine was investigated and compared with a possible fibre laser based machine configuration. The analysis shows that the CO_2 laser source and the chiller unit are the largest energy consumers during productive time. During non-productive time, 12% of the yearly energy consumption is required to keep the chiller and other components active. For the alternative machine configuration it is assumed that no energy is needed during off-mode. The same scenario saves 16.6 MWh during productive time because of the improved efficiency of a fibre laser source.
机译：能源消耗是工业生产对环境影响的很大一部分（Gutowski等，2006）。目前，对于许多机器设计人员来说，由于他们集中精力，因此将能耗降至最低几乎不是优先事项。主要在改善功能，准确性和安全性上。然而，出现了具有改善的能耗的替代机器设计。本文研究了激光切割机作为普通钣金加工机床的情况。本文通过案例研究验证了改善能源的潜力。该分析涵盖了生产时间和非生产时间的能源消耗。确定能源消耗的改善机会。为此，研究了传统的CO_2激光切割机，并将其与可能的基于光纤激光器的机器配置进行了比较。分析表明，在生产时间内，CO_2激光源和冷却器单元是最大的能源消耗者。在非生产时间内，要使冷却器和其他组件保持活动状态，每年需要消耗12％的能源。对于替代的机器配置，假设在关闭模式期间不需要能量。由于提高了光纤激光源的效率，相同的方案在生产时间内节省了16.6 MWh。

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