TY - JOUR N2 - In this article the main problems related with the proper choice of the design and operation parameters of vacuum installation in vacuum moulding system have been discussed. In such system a vacuum are generated using electric-driven vacuum pumps. The aim of the experiment is to evaluate the performance of a vacuum system basing on registered plots of selected electric power parameters of the power-supplying system of the pumps with parallel measurements instantaneous values of pressure in selected points of model stand. The measurements system for power-supply unit has incorporated the recorders of instantaneous current and voltage values. Following the suitable numerical procedure, the experimental data are analysed to yield mathematical relationships between the variations of the generated vacuum pressure levels and variations of selected electric power parameters. According to the authors, the applied measurements system of the parameters of a vacuum-assisted installation may become an effective and easy practical method of evaluating the performance of such installations, used also in industry. L1 - http://journals.pan.pl/Content/87152/PDF/23_paper.pdf L2 - http://journals.pan.pl/Content/87152 PY - 2012 IS - No 4 DO - 10.2478/v10266-012-0121-y KW - Mechanisation and Automation of Foundry Processes KW - Electric Power Measurements KW - Vacuum-Assisted Moulding Processes A1 - K. Smyksy A1 - Ziółkowski, E. A1 - Brzeziński, M. A1 - Wrona, R. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2012 T1 - Analysis and Assessment of Measurements Results of Electric Power Demand in a Model Vacuum-assisted Moulding Installation UR - http://journals.pan.pl/dlibra/publication/edition/87152 T2 - Archives of Foundry Engineering ER -