Khalid El Sheikh, Ryabov, G. A. Hamid, Mahar Diana Bukharkina, T. V. Hussain, Mohmad Azlan
Published in
Thermal Engineering
AbstractIt is shown that combustion of solid fuels in an oxygen atmosphere with recycled flue gases is an efficient method for capture of CO2. The use of the circulating fluidized bed (CFB) technology in the oxy-fuel combustion process reduces the CO2 capture costs and nitrogen oxide emissions compared with flare combustion. The mechanisms of gener...
Ilinkov, A. V. Shchukin, A. V. Takmovtsev, V. V. Khabibullin, I. I. Zaripov, I. Sh. Enizerkin, D. I.
Published in
Thermal Engineering
AbstractResults are discussed of the experimental investigations into the effect of mass forces, longitudinal pressure gradient, and other factors on convective heat transfer enhancement in a turbulent flow. Heat transfer intensifiers include protrusions on and dimples in a heat transfer surface. It has been demonstrated that, depending on the inte...
Tarelin, A. A. Surdu, N. V. Nechaev, A. V.
Published in
Thermal Engineering
Abstract—The phenomenon of droplet impingement erosion of a wet-steam turbine’s last-stage blades is conditionally considered in the aspect of two “opposing” processes: the force impact of droplets on metal and “resistance” of the metal to this impact. The article places its focus on “resistance” of the metal surface layer to the force impact under...
Petrova, T. I. Egoshina, O. V. Voronov, V. N. Isaeva, Yu. V.
Published in
Thermal Engineering
AbstractOne of the main causes of equipment damage at TPPs is corrosion of structural materials and deposit formation on the heat-transfer surfaces of the steam-water tract. This process occurs during stationary operation of the equipment and during start-ups and shutdowns of the power unit. In this paper, we assess the deposit formation of corrosi...
Pikina, G. A. Nguyen, T. S. Pashchenko, F. F.
Published in
Thermal Engineering
Abstract—The article addresses matters concerned with developing the linear theory of constructing multipoint models intended for synthesizing automatic closed loop control systems of thermal power facilities. The multipoint approximation models are oriented at solving practical problems to an extent greater than the models with distributed paramet...
Kharitonova, N. L. Tyapkov, V. F.
Published in
Thermal Engineering
AbstractForeign and domestic software products designed for quantitative description of the flow accelerated corrosion (FAC) rate and modeling erosion–corrosion use physicochemical computational models based on the assumption that the oxide film that protects the surface of steel consists of magnetite. Investigations of the phase composition and st...
Sosin, D. V. Litun, D. S. Ryzhii, I. A. Shtegman, A. V. Shaposhnikov, N. A.
Published in
Thermal Engineering
AbstractOne of the TPP’s electricity cost price components is the fuel cost. An increase in the performance of TPPs is possible by using cheaper alternative coal, the main characteristics of which are close to those of standard quality coal. Recently, there has been a tendency for using other types of coal and nonstandard types of fuel in pulverize...
Burganov, R. T. Gilmullina, A. R. Kirilova, M. A. Kovrizhnykh, E. A.
Published in
Thermal Engineering
AbstractThe results of laboratory studies concerning corrosion inhibitors that make it possible to decelerate the metal dissolution in heat-and-power equipment during its chemical cleaning are presented. The features of the decrease in the carbon steel corrosion rate using commonly known corrosion inhibitors, such as urotropin, captax, and thiourea...
Kuzishchin, V. F. Ismatkhodzhaev, S. K.
Published in
Thermal Engineering
Abstract—The article considers the possibility of achieving more efficient performance of a TP-13B industrial steam boiler fitted with a spray desuperheater and operating in the mode of buffer consumption of blast-furnace gas as applied to the superheated steam temperature automatic closed-loop control system. The main problem stems from the fact t...
Nazolin, A. L. Polyakov, V. I. Gnezdilov, S. G.
Published in
Thermal Engineering
AbstractA promising solution to the problem of early detection for the growth of fatigue cracks in shaft trains of large turbine units at nuclear and thermal power stations based on the results of torsional vibration monitoring by the method of time intervals is considered. It has been demonstrated in the laboratory that this method enables us to d...
