21 Result(s)

Article

Develo** Models of Turbine Thermal Processes in Low-Steam and Motor Modes

The main purpose of the motor mode is to keep the turbine in hot standby (with the boiler off) without generating electricity to the grid. To do this, the generator is switched to the engine mode, which rotate...

G. A. Pikina, E. K. Arakelyan, F. F. Pashchenko, G. A. Filippov in Thermal Engineering (2021)

Article

Ways for Improving Efficiency and Reliability of Steam Turbines at Nuclear Power Stations

The current state and ways for improving the effectiveness of steam turbine units at nuclear power stations (NPS) are examined. The specifics of NPS turbines is described. The comparison of NPS steam turbine p...

G. A. Filippov, E. B. Yurchevskii in Thermal Engineering (2018)

Article

Steam injection impact on the performances of nozzle grid in wet-vapor stream

Results of experimental study of the efficiency of intra-channel steam injection on the surface of nozzle grids of steam turbines operating in the wet steam flow are presented. The main objective of this study...

G. A. Filippov, V. G. Gribin, A. A. Tishchenko, I. Yu. Gavrilov… in Thermal Engineering (2016)

Article

Analyzing the influence exerted by individual components of wetness losses on the efficiency of steam turbine stage and compartments

The influence exerted by dispersed moisture on the economic efficiency of steam turbine stages and compartments operating in the wet steam region is analyzed. A procedure for generalizing experimental data is ...

G. A. Filippov, V. G. Gribin, A. R. Avetisyan, A. S. Lisyanskii in Thermal Engineering (2015)

Article

Properties of austenitic chromium-nickel steels alloyed with nitrogen and silicon

Results of a study of austenitic corrosion-resistant steels of the Fe – Cr – Ni–N–Si alloying system are studied. The steels possess higher parameters of strength (by 25 – 30%) and corrosion resistance (by a f...

A. P. Shlyamnev, G. A. Filippov, V. V. Naumenko in Metal Science and Heat Treatment (2011)

Article

A calculated study of wet steam flow in the combined exhaust from steam turbines at nuclear power stations

Results from a study of the behavior of polydispersed moisture with a high fraction of large droplets in the flow path of a turbine equipped with a combined exhaust are presented.

G. A. Filippov, A. R. Avetisyan in Thermal Engineering (2010)

Article

Ways of improving efficiency of turbine stages having high blade height to mean diameter ratio

We propose an approximate method for profiling the blades of steam-turbine last stages with a high height to mean diameter ratio taking into account a variable slope along the height that allows better efficie...

G. A. Filippov, A. R. Avetisyan in Thermal Engineering (2009)

Article

The effect of surfactant on flow of spontaneously condensing steam in Laval nozzles

Different mechanisms of the possible effect of surfactant on the condensation of supercooled steam in transonic nozzles are considered.

A. R. Avetisyan, V. M. Alipchenkov, L. I. Zaichik, A. N. Kukushkin… in Thermal Engineering (2008)

Article

Effect of Long-Term Service on the Structural Strength of Reinforcing Wire

The main factors influencing the structural strength of high-strength reinforcing wire serving for a long period under the conditions of preliminarily stressed structures of reinforced concrete bridges are con...

V. K. Blokhin, E. Yu. Narusova, O. V. Livanova… in Metal Science and Heat Treatment (2003)

Article

Annealing Brittleness of Low-Alloy Ferrite-Pearlite Steels

S. M. Glazkova, D. L. D'yakonov, O. V. Livanova… in Metal Science and Heat Treatment (2001)

Article

Properties of springs fabricated from steel molten from metallized pellets

The properties of springs depend considerably on the metallurgical quality of the steel. Melting on the base of directly reduced iron diminishes the content of admixtures in the steel. The present work concern...

M. G. Isakov, V. V. Tell’, G. A. Filippov in Metal Science and Heat Treatment (2000)

Article

Effect of nitrogen on the susceptibility of austenitic Cr-Ni-Mn steels to delayed fracture under the action of stresses and hydrogen

The creation of austenitic steels with a supraequilibrium nitrogen concentration increases their strength substantially. However, their plasticity and fracture toughness can lie decreased. In particular, such ...

S. O. Sovorova, G. A. Filippov in Metal Science and Heat Treatment (1996)

Article

Influence of impurities and microalloying on the delayed failure resistance of steels

S. M. Glazkova, I. V. Kislyuk, G. A. Filippov in Metal Science and Heat Treatment (1987)

Article

Study of factors governing steel toughness after high-temperature thermomechanical treatment

1. Formation during HTTT of recrystallized austenite grains may lead to a sharp reduction in fracture toughness ...

G. V. Shcherbedinskii, G. S. Tsukar, D. Bezel'… in Metal Science and Heat Treatment (1983)

Article

Effect of loading parameters on the mechanism of small plastic deformation in tungsten subjected to uniaxial tension

1. Irreversible changes in structure that can be observed by means of a field-ion-microscope occur in the elasti...

A. V. Volkov, P. P. Shiryaev, G. A. Filippov in Metal Science and Heat Treatment (1980)

Article

Effect of the degree of dispersion, the drop concentration and their fine subdivision on the energy and flow characteristics of vapor-drop flows

The degree of dispersion of the condensed phase and its concentration are the most important parameters of high-speed two-phase flows, which determine, in particular, their energy and discharge characteristics.

G. A. Filippov, G. A. Saltanov, K. G. Georgiev in Journal of engineering physics (1978)

Article

Brittleness of martensite

V. I. Sarrak, G. A. Filippov in Metal Science and Heat Treatment (1978)

Article

The nature of delayed fracture of quenched steel

Delayed fracture occurs at stresses exceeding the stress at the beginning of microdeformation. Nucleation of microcracks under load occurs due to the development of microtears in areas of peak residual stresse...

V. I. Sarrak, G. A. Filippov in Metal Science and Heat Treatment (1976)

Article

Variation of the strength of quenched steel

1. Elastically distorted microvolumes in freshly quenched martensite serve as "sinks" for hydrogen, leading to l...

V. I. Sarrak, T. K. Sergeeva, G. A. Filippov in Metal Science and Heat Treatment (1976)

Article

Some results of investigations of low-temperature heat pipes, working against gravity

A number of constructional details and results are given for investigations of water and acetone heat pipes.

Yu. F. Gerasimov, Yu. F. Maidanik, Yu. E. Dolgirev… in Journal of engineering physics (1976)