Modelling of carbon utilisation efficiency and its application in milling parameters optimisation

Abstract

At present, the evaluation index for low carbon manufacturing was mainly focused on the relationship between carbon emission and economic benefits or removal volume. But there was rarely comprehensive evaluation index to evaluate the carbon utilisation level of processing. Based on this, this paper presented the carbon utilisation efficiency as the comprehensive evaluation index in low carbon manufacturing. The carbon utilisation efficiency was defined as the ratio of the carbon emission of materials removal to the whole carbon emission in manufacturing process. A carbon utilisation efficiency model was established in milling process, based on flow characteristics and removal mechanism of carbon emission during milling. Then a multi-objective optimisation model was established based on Particle Swarm Optimisation, and the minimum processing time and high carbon utilisation efficiency were set as the optimisation objectives. And the experiment was performed to confirm the undetermined constant in the optimisation model and verify the effectiveness of the optimisation model. The optimised milling parameters were verified to reduce the processing time and improve the carbon utilisation efficiency.

Keywords:

• Low carbon manufacturing
• milling process
• carbon utilisation efficiency
• particle swarm optimisation
• process parameters optimisation

Additional information

Funding

This work was supported by National Natural Science Foundation of China [grant number U1809221]; Natural Science Foundation of Hunan Province of China [grant number 2017JJ4007]; Green Manufacturing System Integration Project of Ministry of Industry and Information Technology of China.