Contents

HEAT-AND-POWER ENGINEERING FUNDAMENTALS

EXPERIMENTAL AND NUMERICAL STUDIES OF AERODYNAMIC CHARACTERISTICS OF TRANSVERSALLY-MOUNTED PLATES
V.V. Zherehov, O.A. Ledyankina, A.R. Sungatullin
e-mail: led_o@mail.ru
Kazan State Technical University named after A.N.Tupolev
Keywords: wind tunnel, bluff bodies, plate, choked flow, distribution of pressure, jet deflection, account of flow boundary influence, calculation, Fluent software
Abstract
This paper presents experimental studies of aerodynamic characteristics of square-shaped plates mounted transversally in the flow in the low-speed open-jet wind tunnels. As a result, we obtained the aerodynamic characteristics that meet the conditions of infinite flow around bodies. On processing the so-obtained data we derived the formula that makes it possible to account for the influence of flow free boundaries upon values of the plate drag coefficients. The data on these aerodynamic characteristics are compared with those obtained in the course of numerical calculations with use of the Fluent software.

INDUSTRIAL HEAT-AND-POWER ENGINEERING

THE FLOW OF FLUID MEDIUM IN ROTATING CHANNELS OF A ROTOR DEVICE IN THE FIELD OF THE INERTIAL BODY FORCES
W.M. Chervyakov, A.I. Chetyrin, M.W. Chervyakov
e-mail: victcher@mail.ru
Tambov state technical university
Keywords: radial canal of rotor, radial canal of stator, centrifugal force, Coriolis force, Coriolis criterion, modulus of negative acceleration, negative dynamic pressure, cavitation pressure pulse
Abstract
The influence of mass inertial forces on flow of fluid medium in rotating channels of rotor device is studied. The experimental method based on the similarity theory is used. Coriolis criterion, used as the basic parameter characterizing the features of flow show the correlation between centrifugal force and Coriolis forces. The description of half-industrial installation and experimental study procedure are presented. It is shown that the best operating condition for a rotor device is the flow with dominating influence of Coriolis forces in the range of Coriolis factor values from 0.3 to 0.5. For effectiveness of the work it is necessary to increase angular velocity of rotor rotation and its radius, the liquid consumption with limits of power consumption.

POWER GENERATION STATIONS

COMPARISON OF CALCULATION DEPENDENCY OF COOLING TOWER SPRINKLERS
V.A. Kalatuzov
e-mail: irvik@irvik.ru
SPA IRVIK  LLC
Keywords: a cooler, a sprinkler, heat-mass exchange facilities, steam, water, air.
Abstract
In this article investigation results of heat-mass exchange facilities (sprinklers) of coolers and their application in practical calculations are considered. The derivation of mass exchange volume factor and basic dependences of relative air consumption are presented. The accuracy of laboratory findings and their reliability is estimated. Results of laboratory investigations are compared with full scale ones. Ways of receiving hard data are offered.
 
TECHNOLOGIES OF FREE CARBON DIOXIDE REMOVAL FROM WATER ON THERMAL WATER TREATMENT PLANTS
M.A.Rotova, V.I. Sharapov
e-mail: m.rotova@rambler.ru
Ulyanovsk State Technical University
Keywords: water treatment, carbon dioxide, technology of regulation, decarbonization.
Abstract
An experimental study of industrial decarbonators was carried out and control technologies for these apparatuses were developed. These technologies allow to provide the required water quality at minimal costs for their realization.
 
MATHEMATICAL MODELING OF ISOLATED TYPE COOLING SYSTEM USING REAGENT STABILIZING WATER PROCESSING ON THE EXAMPLE OF NABEREZHNYE CHELNY THERMAL POWER STATION (TPS)
A.A.Chichirov, N.D.Chichirova, M.A.Volkov, S.M.Vlasov
e-mail: ndchichirova@mail.ru
Kazan State Power Engineering University
Keywords: circulatory cooling system, cooling tower, condensers of turbines, reagents, adjournment
Abstract
The analysis of the circulatory cooling system (CCS) of an isolated type (disconnected from the water treatment installation and with a blast), with complex reagent water processing has been carried out. Mathematical model of non-conjugated CCS was worked out which makes it possible to calculate all the main material flows, physical-chemical and biological processes. A system of chemical control (monitoring), CCS with reagent water treatment has been worked out. A rational mode of CCS TPS function has been chosen. Material flow at Naberezhnye Chelny TPS has been analyzed; content and structure of sediments in CCS at TPS have also been studied.
 

INDUSTRIAL HEAT-AND-POWER ENGINEERING

STRESS-STRAIN FIELDS FOR BLADES OF TURBINE К-210-130 UNDER OPERATION LOADING
B.V.Ilchenko, R.Z.Gizzatullin, R.R.Yarullin
e-mail: yarullin_r@mail.ru
Researches Center for Power Engineering Problems of the Russian Academy of Sciences
Keywords: power steam turbine blades, finite element method, stress and strain fields, operation loading
Abstract
Both the total and local stress-strain fields for stages 12, 23, 27 of blocks № 3, 7, 10 for the power steam turbine К-210-130 under operation loading conditions are obtained. The three-dimensional full-size FEA models of the power steam turbine rotor used for elastic-plastic numerical calculations. Special attention is paid on contact interaction between turbine disk, blades and rivets. Numerical calculations are performed for blades subjected to rotation loading with take into account external pressure acting on the blade surface.
 
INVERSE PROBLEMS SOLUTIONS IN THE MODEL PARAMETERS IDENTIFICATIONS
Chr. Bojadjiev
e-mail: chboyadj@bas.bg
Bulgarian Academy of Science, Institute of Chemical Engineering, Sofia 1113, Bl.103, Bulgaria
Keywords: model parameters identification, incorrect inverse problem, iterative method regularization
Abstract
A method for model parameters identification as an incorrect inverse problem solution has been proposed. An iterative regularization procedure and numerical algorithm has been developed.

ECONOMICS, ECOLOGY, INNOVATIVE TECHNOLOGIES AND PROCESSES IN POWER ENGINEERING

EXPERIMENTAL STAND FOR THE STUDY OF ELASTIC VIBRATIONS INFLUENCE MECHANISM ON OIL VISCOSITY
E.A. Marfin, Ja.I. Kravtsov
e-mail: marfin@mail.knc.ru
Research Center for Power Engineering Problems of the Russian Academy of Sciences
Keywords: oil, viscosity, elastic vibrations, the wave impact, viscometer, flow
Abstract
This article examines the impact of wave action on the viscosity of liquid. It is shown that the effect of elastic vibrations on oil, which is associated with liquid, will destroy the molecular structure. Decrease in viscosity by significant increase of wave action will speed up the fluids flow in porous media ensuring more effective production. Experimental stand allowing to determine the flow properties of the liquid medium in a channel with a circular cross section was designed for the pilot study of the elastic vibrations influence on the fluid viscosity. 
NATURAL GAZ FLOW METER DEVELOPMENT ON THE BASIS OF TURBINE MEASUREMENT METHOD WITH DENSITY CORRECTION
S.V. Smirnova, S.R. Rakhimberdiyeva
e-mail: smirnova@piis.kstu-kai.ru
The Kazan state technical university of A.N.Tupolev
Keywords: gas flow meter, electric diagram of the gas flow meter, turbine unit layout, calculation of turbine flow meter basic characteristics, the calculation of turbine, rotor wheel, blast pipe, inlet guide vane
Abstract
To measure the flow it is necessary to convert rotation frequency of turbine into an electrical signal. To realize this, electric circuits with different converters such as optoelectronic, inductive and others are used, but not all of them can be applied, because they do not meet all the requirements on accuracy. Inductive converter is simple and has a good output signal, but its main drawback is a high retarding torque of the converter. Entirely new direction in this area is the application of optoelectronic converters. The most viable option is the application of optoelectronic converter which operates on the reflected radiation from the turbine.