Systems analysis of energy-saving technologies and optimization of power-consuming industries

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Evtukhova T. A. Energy saving management system structural-and-functional features construction for HCI of Ukraine Evtukhova T. A. Energy saving management system structural-and-functional features construction for HCI of Ukraine

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Board № (full): 2 (22) 2010 year
Filesize: 474.96 kB
Downloads: 3899
On the base of theses of the hierarchical multilevel systems theory and large systems control theory the structurally-functional diagram of the energy-savings management system for HCI of Ukraine is developed which takes into account the subsystem of consumption of housing-and-communal services as inalienable constituent of the hierarchical management system, and at all hierarchical levels of which the administratively-organizational, energy-economical, energy-technological and energy-ecological management stratification branches are determined. It is discovered that after its integral structurally-functional properties the problem of the energy-savings management in HCI of Ukraine relates to the class of programmatic-adaptive extreme control problems, where to the primary purpose of management, which is energy-saving, the another extreme purpose is added – the achievement of result by economically expedient from the organizationally-technical point of view measures. The original algorithm of the energy-savin
gs extreme management in HCI of Ukraine problem decision is offered as the problem of the mathematical programming under the use of the problem decomposition on the series of more simple procedures and the further piece-linear approximation of technological and management parameters.

Keywords: housing-and-communal industry, hierarchical energy-savings management system, structurally-functional diagrams, management stratification branches.

Ageeva T. P. Problems of improvement of fuel and energy utilization efficiency in municipal economy and public service of Ukrainian population Ageeva T. P. Problems of improvement of fuel and energy utilization efficiency in municipal economy and public service of Ukrainian population

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Board № (full): 1 (6) 2002 year
Filesize: 545.37 kB
Downloads: 3714

A structural analysis of energy consumption in economy sphere in 1990-2000, which includes residential sector, municipal economy and public sector (education, culture, health service). The ways of fuel economy (the non-centralization consumers), electrical and thermal energy and indexes for a complex evaluation of efficiency of energy saving are considered.

Keywords: energy saving, energy consumption, fuel, electrical and thermal energy, residential, municipal and household needs of the population.

Bilodid V.D. Determination of the efficiency of electric power production by nuclear power plants using the methodology of full energy costs. Part 1. Energy costs for construction Bilodid V.D. Determination of the efficiency of electric power production by nuclear power plants using the methodology of full energy costs. Part 1. Energy costs for construction

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Board № (full): 2 (53) 2018 year
Filesize: 7.97 MB
Downloads: 527

The results of a study on the determination of the efficiency of electric power generation by nuclear power plants with VVER-1000 reactors based on the full energy cost methodology are presented. The methodology for determining the effectiveness of technology using this methodology was published earlier. Part 1 defines the total energy costs for the construction of nuclear power plants. The main indicators of the energy intensity of the construction of nuclear power plants with VVER-1000 reactors are determined, among which: the specific energy intensity of the NPP unit construction is 246 GJ / kW provided that the policy of National Bank of Ukraine is invariable, and the average hryvnia inflation is 6% /yr, or it is 140 GJ/kW at the hryvnia rate corresponding to the predicted parity of purchasing power of US dollar. The specific energy intensity of a large nuclear power plant is 220 or 125 GJ/kW for the Same two variants. The obtained results will allow to estimate the NPP energy efficiency by the methodology of determining the total energy costs.
In Part 2, calculations will be made on the energy costs for nuclear fuel. Part 3 provides coverage of energy costs for NPP operation for 40 years, the costs of its elimination and the determination of the final efficiency of electricity generation at nuclear power plants. Parts 2 and 3 will be published in the next issue of the collection.

Keywords: nuclear power plant, full energy costs, efficiency of power generation.

Bilodid V.D. Determination of the efficiency of electric power production by nuclear power plants using the methodology of full energy costs. Part 2. Energy costs for nuclear fuel Bilodid V.D. Determination of the efficiency of electric power production by nuclear power plants using the methodology of full energy costs. Part 2. Energy costs for nuclear fuel

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Board № (full): 3 (54) 2018 year
Filesize: 5.39 MB
Downloads: 116

We present the results of determination of the efficiency of electric energy generation by nuclear power plants with WWER-1000 reactors according to the methodology of full energy expenditures. The methodology for determining the efficiency of technologies was published earlier. In part 1 of the article, which was published in the 2nd issue of "The Problems of General Energy" for 2018, we give the results of calculations of the full energy costs for the construction of nuclear power plants. Part 2 presents the results of calculations of energy expenditure for obtaining nuclear fuel, which is necessary for the operation of NPP during its lifetime. It is shown that the full energy costs of nuclear fuel for an NPP unit with WWER-1000 reactors during 40 years of operation under the option of invariance of policy of the NBU of Ukraine regarding exchange rates are set at 18.6 PJ; the same costs at the rate of hryvnia in terms of the parity of purchasing power of US dollar are determined in the amount of 5.0 PJ.
Part 3 envisions the coverage of questions on energy costs for NPP operation, costs for its decommissioning, and determination of the final efficiency of power generation at NPPs. Part 3 will be published in the following issues of collection.

Keywords: nuclear power plant, full energy costs, efficiency of power generation, energy costs for nuclear fuel.

Bilodid, V.D. Total energy costs for electricity produced by power objects Bilodid, V.D. Total energy costs for electricity produced by power objects

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Board № (full): 3 (50) 2017 year
Filesize: 5.15 MB
Downloads: 1310

We have proposed new, detailed methods of determining some values of the total energy expenditures in components of power plants as well as important constants for their finding, which will enable one to determine more exactly and substantially the efficiency of power plants by the methodology of total energy expenditures. The determination of components of the energy expenditures for building, operation, and elimination of power plants is performed by formulas, which differ from existing ones by DSTU 3682-98 concerning the specification of calculations and taking into account direct and indirect expenditures at all stages.

Keywords: total energy expenditures, parameters of efficiency, power plants.

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