Energy Engineering

Technologies of energy saving and energy supply of industrial and civil objects

Efficient power supply and energy saving are one of the priority state tasks. The efficiency of energy supply is influenced by the degree of centralization of energy generation. The combined generation of electricity, heat and cold in one energy complex (trigeneration) has a number of very significant advantages. Due to the mutual utilization of energy, fuel efficiency is significantly increased. When choosing the degree of centralization in the case of trigeneration, it is necessary to consider the peculiarities of production and transportation of each of the components. The optimal degree of centralization of the trigeneration is shifted to the area of power generating installations based on gas turbine units (GTU) of low power. The goal is to develop methods, technologies and means of energy saving, local energy supply of facilities remote from the CHP plants. For this, it is necessary to solve the problem of designing low-power GTU. The fields of application of GTU are the infrastructure of residential and industrial complexes of agglomerations.

Technologies for reducing friction losses and changing the thermal stress of parts of an internal combustion engine

For various parts and assemblies of internal combustion engines, the thermal stress during operation is uneven. Various factors influence the thermal stress: the type of fuel, the design of the internal combustion engine, the operating conditions, etc. Heat balance in different forms and types of internal combustion engines also varies. During the operation of the internal combustion engine in the units and mechanisms, friction occurs. It is also different according to the types and groups of parts. Reducing friction losses and changing the thermal stress of ICE components, especially the cylinder-piston group, is an important task for scientific research. Research objective – a reduction of friction and thermal stress of the engine parts. The task of research is to determine the operating modes of the internal combustion engine with minimal mechanical losses hence to increase the efficiency of its operation. Field of application - motor transport companies; enterprises operating motor-and-tractor equipment; service stations.