The permitted effects of electromagnetic fields on the environment have been reduced recently in regard to those regulations covering the area of electromagnetic compatibility. As this is now also applicable for those household appliances made by BSH home appliances doo, Nazarje, a detailed analysis was carried out of scattered magnetic fields within the vicinity of their MUM86 universal appliance. Therefore, 3D simulations of magnetic fields were carried out for various operational states of the apparatus within a space having the form of a sphere with a radius of three meters. The simulation results were verified on a real appliance using magnetic measurements of situations at selected points of the space and selected routes. Those areas with the more intensive scattered fields within the vicinity of the appliance were determined through analysis. The sources of these fields were also identified, thus making it possible to reduce them by taking appropriate actions. The successes of different actions were verified by simulations, the most technologically acceptable and cost-effective action was then incorporated into the production by the manufacturer of these appliances. Thus, the manufacturer can now guarantee the suitability of their product within the stringent criteria, and the possibility of increased sales on the more demanding world markets.
F.07 Improvements to an existing product
COBISS.SI-ID: 16070678Coworkers of the programme group presented in the last period 26 contributions, which represent rounded area of work of the PG. The most important of them are in the areas: of magnetic measurements and modelling of magnetic fluid, of the electro mechanic systems, of the electromagnetic field numerical modelling, of the numerical solving of the coupled problems, of the electrical discharges in air, of the grounding systems modelling and of the optimization methods.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 16545302This program FIELD_GS_lf [COBISS.SI-ID 16647446] is designed to calculate, simulate, and design different earthing-systems for conditions of stady state electromagnetic fields. Ionization of the earth may also be considered in the calculation with the help of the classical model of ionization. The program enables the analysis of an arbitrary mesh of the grounding system in combination with rings and vertical and horizontal rods. It is used more layered soil model with the additional possibility of taking into account local inhomogeneities in the earth. The advanced designs of earthing-systems have certain advantages over other commercial programs (usage of finite-element methods, and a ten-layered earth model that takes into account the possibility of critical soil ionization strength for each layer of soil). It is fully interactive and allows for 3D visualization of all field quantities. The test version of this program was transferred to the FOE MMU in the year 2012. Within the scope of the program’s transfer, a 5-day seminar was held regarding the MMU [COBISS.SI-ID 16646678].
F.23 Development of new system-wide, normative and programme solutions, and methods
COBISS.SI-ID: 16647446