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Energy efficiency optimisation in industrial processes: Integral decision support tool

Iñigo Bonilla Campos, Nerea Nieto, Luis del Portillo Valdes, Jaio Manzanedo, Haizea Gaztañaga



Assessing and improving energy efficiency in manufacturing processes is a crucial issue for companies who wish to become competitive. In addition, there are high margins of technical energy efficiency improvement for practically each sector and kind of industry. There are many Energy Efficiency Measures (EEM)s and tools in the literature to assess energy efficiency. To fit an EEM to a specific process is a complicated task, due to the different characteristic and restrictions of each specific manufacturing process. Owing to the complexity of the non-continuous processes, each measure has to be deeply analysed. Consequently, this work presents an integral analysis, process optimisation and decision support tool to assess the implementation of EEMs in these processes. This tool allows us to analyse both the possible synergies that may be created among the EEMs and their impact on other parts of the process line. The optimum solution or combination of EEMs, and their sizing, are determined to reach the highest levels of energy efficiency. The impact on the overall energy efficiency and the synergies among EEMs is shown. Several packages of EEMs are analysed, with energy consumption reductions ranging from 21% to 50%.

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