JUNE-JULY 2018 Nov-Dec 2017 - Copy - Page 48

CASE STUDY POWER AND WATER CONSUMPTION REDUCED BY ABOUT 30% PERCENT A t the BMW Group’s engine plant in Steyr (Austria), in a reference project accompanied by the Technical University of Vienna, Ecoclean Monschau has significantly raised the energy efficiency of a flexible EcoCFlex Classic robot cell that had been in service for several years. The system’s electric power and water consumption were each cut by around 30 percent. These energy efficiency measures are now intended to be implemented on another 95 systems of the same type installed at various sites throughout Europe and Asia. The BMW Group has been using EcoCFlex Classic robot cells made by Ecoclean Monschau for around 12 years in several of their factories to debur and clean engine parts such as, e.g., cylinder heads for diverse car models. At the Steyr (Austria) engine plant, 30 first-generation units of this flexible cleaning machine are in use. Now as before, their cleaning performance is beyond reproach. However, in terms of energy efficiency – a parameter closely monitored by the BMW Group – the systems are no longer up to today’s standards. Their water consumption in particular has proved too high. BMW Steyr therefore contacted the equipment manufacturer, inquiring if and how the machines could be energetically optimized. Potential analysis revealed saving options Ecoclean has developed a potential analysis especially for this type of task. In their investigation, the equipment maker’s service staff will focus on factors such as the water consumption, cleaning agent input, electricity demand of power drawing equipment, and the consumption of compressed air. Flow measurements revealed that large quantities of vapour were extracted from the cleaning cell, causing the machine’s elevated water consumption. Furthermore, the analysis identified a major electricity saving potential in operation of the feed pumps. 48 Photo: Ecoclean Energy efficiency measures yielded an approx. 30 percent reduction in the electric power and water consumption of an EcoCFlex Classic robot cell that had been in service for several years. Small measures, large effect: 30 percent savings One measure taken to reduce the water www.ghmediabusiness.com