Considers the problem of priority in the field of safety assessment of potentially dangerous objects. The current level of anthropogenic loads on the environment is approaching a critical value. Studies of risk as a research area is still only in its infancy. The current scientific basis of risk analysis is not adequate to the needs of social development, although the accumulated potential allows us to implement specific projects related to risk analysis.

The benchmarking technique fitted for identification of reliability and profitability reserves has been developed to improve the indicators of thermal power plant units. Efficiency of the technique for example of main thermal mechanical equipment benchmarking of power plant units Т-250 and CHPP-130 units has been shown.

One of the key indicators of heat supply organizations is the reliability of energy facilities. The index of reliability of heat supply organization is of interest to potential investors, to assess the risks of investing projects. We propose a method of determining the reliability of heat supply organizations with the use of SAW (simple additive weighting method). We developed a versatile program and the analysis of heat supply organizations on the example of the Republic of Tatarstan.

Influence of local heat transfer coefficient on thermal strain of inlet and outlet pipelines of supercharged piston-type internal combustion engines at different turbine compressor rotor rotation frequencies is considered. A method is suggested for reducing the local heat transfer coefficient, on average, by 25% in an inlet pipeline of a supercharged engine.

The problem of calculation of static characteristics of sleeve-type bearings used in today’s power units is considered. The traditional calculation method cited in reference books on calculation of bearings involves using an isothermal model of flow in a layer of lubricant. The paper takes into account heating and alteration of all the lubricant properties as related to temperature. Exemplary calculations are provided for static characteristics for a six-shoe segmental journal bearing including results of calculations of the bearing capacity, losses for friction and heating of lubricant with consideration of alteration of the lubricant properties upon heating and with non-uniformity of temperature distribution taken into account.

The problems connected with increased reliability of high-speed electrical systems, including high-speed microturbine generator installations were discussed. The review of foreign constructions of hybrid magnetic bearings that are used to improve the reliability of high-speed generators is presented. Identified their main development trends and prospects of using in various industries. The recommendations on the practical application of hybrid magnetic bearings are given.

The aim is the optimization of industrial heating cogeneration (CHP) by the criterion of marginal profit when working on the wholesale electricity market. There is given technique of optimization that allows at each step to determine the increment of the variables of the objective function, ensuring maximum change of the objective function in the direction of increase within a given step and while respecting the given constraints. The example of the cogeneration heating plant optimization calculation is considered.

To the article gas-dynamic characteristics of the deferent trunk of the industrial smoke pipe. It is shown that surplus pressures into the trunk of flue in relation to atmospheric pressure assist destruction of walls of pipe. Methods over of calculation of gas-dynamic characteristics of streams of smoke gases, and also results of calculations, are brought on unidimensional and three-dimensional to the models of flow.

The main purpose of the article is to determine the effect of the height of divider on collection efficiency Ekibastuz ash IVAC. The ANSYS CFX was made experiments with collection, which showed a steady trend of the efficiency of the installation height divider.

Issues of raising efficiency of maintenance and durability of power transformers are considered. The optimum period is found for undertaking preventive measures aimed at extending the service life of dielectric fluid in transformers. A model is developed for forecasting the residual service life of service oils of transformers.

Considerable duration of natural cooling of steam turbines extends the time of their idling for repair, reduces the installed capacity utilization factor, makes necessary a larger capacity margin in energy systems. The above factors suggest the necessity of introducing various technologies for accelerated withdrawal of steam turbines for scheduled maintenance and emergency repair. Results are stated of a study on shutdown conditions of an off-unit steam turbine with cooldown as a single unit comprising a boiler.

Considered the effectiveness of continuous monitoring of the technical condition of HRSG, the main purpose of which is assisting staff TPS to correctly identify the main cause of deviations or infringements of modes of operation to prevent damage to the equipment. As criterion of evaluation of the technical condition and basis for the development of the equipment maintenance steam part of CCGT proposed method of calculating equivalent hours of operation or equivalent starting conditions.

Definition of economic benefit of actions on replacement of switching devices in low-voltage shop networks 0,4 kV. Influence of an increase of resistance of contact connection of devices on equivalent resistance of a site of a network.

Equipment of thermal power plants is updated with slow rate. Wide application of advanced thermal barrier, wear and corrosion resistant, electrical insulation, superconducting composition coatings for repair and manufacture of the thermal power plants equipment will be allowed to improve efficiency of carried out works, extend service life and increase competitiveness of domestic power-plant engineering.