Mathematical Modeling of the Thermal State of the Brush-Holders Device in a Three-Dimensional Setting

This article examined design options for high-speed Turbogenerators of medium and high power. Particular attention was paid to the operating features of the generator cooling system. The probabilities of occurrence of emergency situations at electric generators of power plants caused by failures of various types are given, based on the results of statistical data processing. The detailed analysis of the design of the brush-holders device of Turbogenerators was carried out. The factors influencing the design of brush-holders are indicated. The main causes of damage are considered and the ways of development and improvement of the existing design structure are determined. The analysis of the calculation methods of the ventilation and heat removal systems was carried out. The temperatures values were obtained as the result of modeling the brush-holder thermal state in the SolidWorks Flow Simulation environment. The principles of three-dimensional calculation of the thermal state of the brush-holders device of Turbogenerators in a three-dimensional formulation by the CFD method using the results of analytical calculations are considered.