An economic feasibility study of peak loads passing in a power system owing to the hydrogen cycle in nuclear power plants
R.Z. Aminov, A.N. Bairamov, D.M. Pron
Department of Energy Problems, Saratov Scientific Center, Russian Academy of Sciences
Keywords: Cost-effectiveness, peak electric load, nuclear power, methods, electrolysis, cost price, consumer-regulator.
Abstract
According to the given methodological propositions the economic feasibility study of using consumer-regulators is done. The work is carried out on the example of the hydrogen cycle at NPPs used to provide a nuclear power plant with base electrical load in the period of the minimum energy consumption occurring at night and to generate peak electric power in the energy system. It is shown that in comparison with gas turbine plants the use of the hydrogen cycle on the basis of nuclear power station is reasonable when it is charged taking into account only the fuel cost.
NEW TECHNOLOGIES of THERMAL DEAERATORS MANAGEMENT at THERMAL POWER STATIONS
V.I. Sharapov, M.R. Fetkullov
Ulyanovsk State Technical University
vlad-sharapov2008@yandex.ru, mfetkullov@ yandex.ru
Keywords: Thermal deaeration, perfection of technologies, thermal power stations, increasing to efficiency of the heat sources, protection against internal corrosion
Abstract
The paper presents the analysis of basic ways to manage the processes of thermal deaeration of water. It is offered that thermal deaerators at thermal power stations can be controlled on the basis of several regulating and regulated parameters that allows to improve reliability, quality and profitability of heat power installations due to removal of corrosive gases at the minimum power cost. Dynamic characteristics of an industrial thermal deaerator as the object of regulation are received experimentally.
NUMERICAL SIMULATION OF BURNERS WITH THERMAL PRETREATMENT OF THE PULVERIZED COAL STREAM at THERMAL POWER PLANTs
Dubrovsky V. А.1, Tretyak N.V. 1, Potylicyn M. Y.1, Chernetsky M. Y.1,2, Dekterev А.А.1,2
vitdubrov@mail.ru, klepa_nadejda@mail.ru, mihailpot@yandex.ru, micch@yandex.ru , dekterev@mail.ru
1The Siberian federal university
2 Institute of thermal physics of S.S.Kutateladze IТ the Siberian Branch of the Russian Academy of Science
Keywords: numerical simulation, energy-saving, burner, coal gasification, coal burning, mathematical model
Abstract
The problem of replacement of masut is actual at kindling and illumination of a jet of furnace of boiler by cheap coals of Kansko-Achinsk basin, which cost more than 10 times less cost of liquid fuel – masut.
The work is devoted to the study of the burners with thermal pretreatment of a pulverized coal stream to burn brown coal of Kansko-Achinsk basin at thermal power plants. Numerical simulation of a burner muffle to specify the design and determine required operating regimes of the object under study is performed.
The findings will provide practical recommendations to develop energy efficient universal burners.
CFD SIMULATION OF FLOW AROUND ISOLATED HELICOPTER FUSELAGES
A.N. Kusyumov*, S.A. Mikhailov*, E.I. Nikolaev*, A.O. Garipov**, G. Barakos***
postbox7@mail.ru, michailov@kai.ru, nikjhon@yandex.ru, garipov_ao@kazanhelicopters.com, g.barakos@liverpool.ac.uk
*Kazan National Research Technical University named after A.N. Tupolev
**Kazan Helicopters Joint Stock Company
*** University of Liverpool
Key words: computational fluid dynamics, tetra grid, helicopter fuselage drag, actuator disk, uniform theory
Abstract
This paper aims to investigate the aerodynamic drag of the ANSAT helicopter wind tunnel fuselages models. This is achieved using Computational Fluid Dynamics and, in particular, the commercial tool of ANSYS Fluent. The CAD model of the fuselage was meshed using an unstructured grid and computed using viscous flow models under the assumption of steady flow conditions. To account for the influence of the helicopter rotor the actuator disk model available in Fluent was used and the results were compared with computations for the isolated fuselage. The contributions to the total drag of the individual helicopter fuselage components were also studied using the different turbulence models. The key components of the fuselage drag are identified.
Municipal solid waste treatment, recycling and energy recovery
Islamova S.I., Muhametshina E.I.
Research Center for Rower Engineering Problems of the Russian Academy of Sciences
Keywords: municipal solid waste (MSW), waste processing, recycling, alternative sources of energy, environmental safety.
Abstract
The article aims to consider the most common technological solutions for municipal solid waste management. The technologies, equipment used, their advantages and disadvantages are described. The experience of European countries in the use of waste treatment technologies and their application to the Russian communal services are shown.
AUTOMATED SYSTEMS for MONITORING AND OPERATION OF reCIRCULATING COOLING TOWERS
A.A.Chichirov, N.D.Chichirova, S.M.Vlasov, O.V. Ilyin
pinpin3@yandex.ru, ndchichirova@mail.ru, vlasovsm@list.ru, oleg-ili@yandex.ru
Kazan State Power Engineering University
Keywords: software systems, automated system, computer program, recirculating cooling system, cooling tower, condensers of turbines, reagents, adjournment.
Abstract
The applied computer programs, hardware and software suites and automated monitoring and management systems of recirculating cooling towers were considered. The main technical characteristics of computer programs for optimization of recirculating cooling towers mode at power stations were stated. The advantages and disadvantages of the computer programs, hardware and software suites and automated monitoring and management systems of recirculating cooling towers were shown. The industrial facilities for automated recirculating cooling tower management systems realization in the Russian Federation were presented.
DEPENDENCES OF HEAT AND MASS TRANSFER CHARACTERISTICS on the Frank-Kamenetskii parameter in the critical regime of non-Newtonian fluid heat transfer IN THE REACTOR
B.R. Abajdullin, E.K. Vachagina
cyberincorp@mail.ru, evachagina@mail.ru
Research Center for Power Engineering Problems of the Russian Academy of Sciences
Keywords: non-Newtonian liquid, the Frank-Kamenetskii parameter, critical heat exchange, coaxial reactor, monomer and initiator diffusion coefficients
Abstract
Mathematical model of heat and mass transfer in polymerization process in coaxial reactors is presented in the paper. The model allows considering the process parameters distributions in the critical mode of heat and mass transfer in the non-Newtonian fluid flow. The results of a numerical study are presented in the form of distributions of temperature, axial and radial velocity components, viscosity and concentration of a monomer and initiator by varying the Frank Kamenetskij parameter. Constant temperature boundary conditions are given at the channel walls.