Chepil O. The development of methods of evaluation of operability drum steam boiler and thermal cycling on hydrogenation.

Object of investigation - a defect of the material in the vicinity of a stress concentrator for cyclic deformation and hydrogen absorption. Aim - development of methodology for assessing the performance of structural elements of power equipment, taking into account the effect of hydrogen on the metal to non-stationary thermopower loading. Methods of investigation - the main provisions of solid mechanics, energy criterion of destruction; finite element method. The method for determining the operational lifetime structural elements based on their hydrogenation in the presence of non-stationary temperature field uneven and variable pressure hydrogen. It was assessed the strength and durability of the drum stationary high pressure steam boiler, made of steel 22K in real operating conditions. The influence of loading and maintenance regimes samples in its lifetime. The technique developed study of stress-strain state of the elements of power equipment operating under different operating conditions, was used Ltd. "Plant Research" Promkotloservis ". Branches of application - power generating.