关键词: 能量效率评价, 能量利用率, 产品单位产量能量效率, 能量监测, 机械加工系统

Abstract: To recognize the energy consumption of mechanical machining industry for building a set of energy efficiency evaluating method with strong operability and appliability,based on the research achievements on energy efficiency model and assessing index sytem,a general method for energy efficiency evaluation in the mechanical machining system and its key technologies were proposed,The method included six steps,which were boundary definition,index selection,data collection,evaluating tool selection,result output and efficiency level analysis.Specially,oriented to the application,a set of energy efficiency evaluating index system was researched,which was costomerized to the process (machine tool) layer and workshop layer resepectively;oriented to the availability,a data acquisition method combining structuralization feature with object-oriented feture was given.The effectivenenss of the proposed method was verified with case study.The method specified the evaluating process and its key technologies,which could help the implementation of energy efficiency evaluation in the machining workshop.

Key words: energy efficiency evaluation, energy utilization, energy efficiency of unit physical production, energy monitoring, machining system