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Feasibility Study of Using Geothermal Heat-Pump Units for Substituting Small-Capacity Coal-Fired Boiler Houses (Taking the Baikal Natural Area as an Example)

... heat-pump unit operation is considered taking into account a shift for using a low-temperature space-heating system. The economic feasibility of substituting a coal-fired boiler house is estimated proceeding from the equality between the total discounted costs for implementing a space-heating system equipped with heat-pump units and costs for operation of the coal-fired boiler house for the considered period of time. The dependences of the total discounted costs for the alternatives being compared have ...

Теги: boiler house , coefficient of performance , ecology , economic feasibility , heat-pump units , low-grade heat sources , coal , coal fired boilers , costs , economic analysis , fossil fuel power plants , geothermal energy , geothermal heating , horizontal wells , houses
Раздел: ИСЭМ СО РАН
Use of gasifier-based electric power stations for improving the economy of autonomous power supply systems in Russia

... mathematical formulation of the problem of optimizing the structure and modes of operation of the power supply system is reduced to minimizing the objective function with a number of additional constrains. The objective function is equal to total discounted costs for the construction and operation of the system or the cost of electricity produced. Additional constrains are balances for power, primary, secondary and final energy. The power supply system was modeled for different values of diesel and wood ...

Теги: biomass , costs , diesel engines , diesel power plants , economics , electric power generation , electric power plants , electric power systems , functions , gas fuel storage , gasification , wind , wind turbines
Раздел: ИСЭМ СО РАН
Investigation of the Efficiency of a Cogeneration Gas Turbine Unit with Heat Recovery of Flue Gases in the Far North

... optimization calculations were carried out for climatic conditions of Yakutsk and different prices for fuel. The optimal design parameters of the equipment, the parameters of the working fluid and coolants at all points of the technological scheme, fuel costs in each characteristic mode of operation were found by the criterion of the minimum price of electricity. The obtained results allow concluding about sufficient energy and economic efficiency. The creation of a mathematical model of a cogeneration ...

Теги: cogeneration gas turbine unit , efficiency of heat power equipment , mathematical modeling , optimization , utilization of the flue gases heat , waste-heat recovery , calculations , cogeneration plants , computer systems programming , costs , flue gases , flues , gas
Раздел: ИСЭМ СО РАН
Comparison of Competitiveness of Renewable and Non-Renewable Energy Sources in Russia and in East Asian Countries

Marchenko O.V., Podkovalnikov S.V., Solomin S.V. Comparison of Competitiveness of Renewable and Non-Renewable Energy Sources in Russia and in East Asian Countries // 2019 International Multi-Conference on Industrial Engineering and Modern Technologies, FarEastCon 2019. ID: 8934359. ISBN (print): 9781728100616. DOI: 10.1109/FarEastCon.2019.8934359 The effectiveness of power plants of various types in Russia (Siberia and the Far East) and neighboring Asian countries (China, Korea, Japan) was evaluated...

Теги: carbon tax , competitiveness , economic efficiency , plants , renewable energy sources , carbon dioxide , competition , costs , electric power generation , emission control , fossil fuel power plants , fossil fuels , global warming , natural resources , nuclear fuels
Раздел: ИСЭМ СО РАН
Parametric optimization of supercritical power plants using gradient methods

Kler A.M., Zharkov P.V., Epishkin N.O. Parametric optimization of supercritical power plants using gradient methods // Energy. ID: 116230. 2019. DOI: 10.1016/j.energy.2019.116230 Gradient nonlinear optimization methods are among the most effective approaches to determine the optimal parameters of thermal power plants. These methods allow us to consistently optimize a large number of thermodynamic and design parameters and mass flow rates of actuation fluids and of heat-transfer fluids. This paper...

Теги: cost of electricity , gradient methods , mathematical modeling , nonlinear optimization , specific plant investments , supercritical power plants , costs , heat transfer , mathematical models , nickel alloys , nonlinear equations , nonlinear programming , superheater
Раздел: ИСЭМ СО РАН
Technical-economic evaluation of medium-power gas turbine plant with air bottoming cycle

... and economic analysis. The approach used in the study is aimed at solving two types of optimization problems: (1) to determine the maximum net efficiency of the power plant and (2) to adjust the equipment and operating parameters for achieving minimum costs of electricity production. The study shows that the air bottoming cycle provides an increase in the net efficiency up to 44 - 48% and adds about 20% to the installed power capacity. The minimum costs of electric energy production estimated for different ...

Теги: air bottoming cycle , efficiency , electric power , gas turbine , gas-turbine plant , waste heat recovery , combustion , costs , electric power generation , exhaust gases , gas turbine power plants , gas turbines , natural gasoline plants , waste heat , waste heat util
Раздел: ИСЭМ СО РАН
One approach to the study of gas pricing based on gas supply systems modelling (the case of Northeast Asia)

... of gas supply systems. The object of the study is the Northeast Asian gas market. The model of the excessive gas supply system in Northeast Asia is described. The primal problem of the model is to minimize the sum of gas production and transportation costs under the infrastructure constraints. The solutions to the primal problem are the volumes of gas produced in each production point and transported via each route. The solutions to the dual problem (dual variables or shadow prices) are node prices ...

Теги: commerce , gas supply , gases , gas development , gas productions , gas supply system , market environment , northeast asia , optimization models , technological development , unconventional gas , costs
Раздел: ИСЭМ СО РАН
Competitiveness of Advanced Technologies for Production of Electricity and Alternative Liquid Fuels

Tyurina E., Mednikov A., Sushko S. Competitiveness of Advanced Technologies for Production of Electricity and Alternative Liquid Fuels // E3S Web of Conferences. Vol.69. ID: 02008. 2018. DOI: 10.1051/e3sconf/20186902008 Technical and economic aspects of synthetic liquid fuel and electric power combined production within one energy-technology installation (ETI) are considered. The range of prices for alternative liquid fuel (ALF) produced by the installations, depending on the cost of consumed fuel...

Теги: alternative fuels , automotive fuels , costs , electric power generation , electric power transmission networks , ethers , investments , liquid fuels , liquids , advanced technology , capital investment , dimeth
Раздел: ИСЭМ СО РАН
Mathematical Modeling of the Heat Energy Market on a Single Heat Supplier Basis

... are considered. An equilibrium mathematical model is proposed for the liberalized tariff setting conditions based on a microeconomic monopolistic market model. This mathematical model allows for taking into account energy production and transportation costs as part of a single economic criterion and to determine the supply-and-demand equilibrium for heat energy. A regulated heat energy market model on the SHS basis considers an option of a tariff setting for consumers of the housing and utility sector ...

Теги: heat energy market , heat supply , mathematical modeling , optimization , single heat supplier , circuit theory , commerce , costs , hydraulic equipment , hydraulic machinery , iterative methods , mathematical models , solar buildings , economic characteristics , engin
Раздел: ИСЭМ СО РАН
Energy-intensive manufacturing enterprises as active players in demand side management system

... problems in the energy industry is ensuring rational operating conditions of electric power systems under variable loads and with regard to cost-effectiveness and technical capabilities of power plants. Supply fluctuated load considerably increases the costs in the power systems. The price of electricity in the case by changed load is generally higher than by constant load. This price cannot be decreased without cooperation with consumers. The last decade has shown an intensive adoption of new smart ...

Теги: active consumers , demand response , demand side management , electric power system , electrical load curve , commerce , consumer behavior , cost effectiveness , costs , curve fitting , electric power systems , electric power transmission networks , electric utilitie
Раздел: ИСЭМ СО РАН


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