In the article the analysis of airflow through electrical motor was conducted and optimal design solution was chosen in order to increase cooling efficiency. Numerical simulations allow to determine the areas of temperature occurrence which may have destructive in-fluence on electrical motor parts and on its safe operation. The numerical calculations of airflow was carried out for two different types of fans as well as for two different housings. An analysis of the construction was carried out by CFD method using Autodesk Simulation CFD 2013. Community results of the analysis, we can conclude that the better solution for machines with fixed direction of rotation is to use in-stead of the radial the axial fan. For axial fan the motor temperature in the same condition was lower by about 5°C.
Przedstawiono wyniki badań przeciwkorozyjnego i stabilizującego wodę działania związków fosfonowych i ich kompleksów z jonami Ca2+ i Zn2+ oraz weryfikacje tych badań w warunkach przemysłowego obiegu chłodzącego.
EN
The results of the anticorrosion and stabilizing action of phosphonic compounds and their complexes with Ca2+ and Zn2+ ions on the cooling water is presented. The revision of these investigations in the conditions of industrial cooling water plant is also done.
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