Husk Energy Supply Systems for Sunflower Oil Mills

Together with solar, wind, and hydro renewable energy sources (RES), biomass constitutes an integral part of the high-renewables electricity systems. Considerable feedstocks for electricity generation are process-based residues. Ukraine is the world leader in sunflower seed production, therefore, husk (a by-product of oil production) is a promising biofuel for combustion- based power plants. The plants consume primarily electricity and fossil fuels (natural gas or fuel oil) for steam production. Their usage affects the edible oil production cost and impacts on climate change. The above facts force us to look for alternatives. By-product (husk) utilization can reduce exhaustible energy consumption (fossil fuels and grid electricity) and mitigate climate change. The aim of the study is to make an energy and ecological assessment of biomass energy supply systems. Specifically, the electricity and heat consumption of Ukrainian sunflower oil mills is investigated. Different options of cogeneration systems are analyzed. The preferable mode of combustion-based husk combined heat and power plants is to meet their own heat demand and to sell surplus electricity. Relative gross income and carbon dioxide emission reductions are calculated. Our results show that husk utilization can meet electricity and heat requirements of edible plants. The surplus electricity may be sold to the grid. Husk combined heat and power plants may result in reduction of carbon dioxide by 200–300% and an increase of total income by 24.7–65.7% (compared to conventional energy supply systems).

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Efficient Methods of Market Pricing in Power Industry within the Context of System Integration of Renewable Energy Sources

Energies ◽

10.3390/en12173250 ◽

2019 ◽

Vol 12 (17) ◽

pp. 3250 ◽

Cited By ~ 1

Author(s):

Evgeny Lisin ◽

Galina Kurdiukova ◽

Pavel Okley ◽

Veronika Chernova

Keyword(s):

Renewable Energy ◽

Energy Supply ◽

Power Plants ◽

Fossil Fuels ◽

Renewable Energy Sources ◽

Market Value ◽

Economic Incentives ◽

Energy Sources ◽

Supply Systems ◽

Energy Supply Systems

Currently, the majority of world economies (even those located in the sunbelt (+/− 35 degrees of latitude with good sunshine with low seasonality) uses various types of fossil fuels as the main source of energy for their economies. However, this represents a very volatile and unsustainable strategy, since according to various estimates, the fossil fuel era will inevitably end as all carbon fuels are going to be spent in the next few centuries. Unlike traditional energy, renewable energy sources (RES) are not based on energy resources, but rather rely upon natural energy flows. With regard to its unique property, there has been an active construction of power plants of renewable energy and their gradual integration into national energy supply systems in recent decades. At the same time, the existing models of electricity markets were unprepared for their wide distribution. Hence, determination of the market value of energy generated by power plants using renewable energy sources becomes a particularly significant issue. This market value has to take into account the prevention of costs from the use of fossil fuels, as well as the resulting environmental benefits. Our paper proposes methods for solving this problem, contributing to the increase of economic efficiency of investment projects for the construction of renewable energy facilities and the formation of economic incentives for their propagation in energy supply systems. The proposed methods are based on the dynamic differentiation of tariffs for consumers with renewable energy sources depending on their structure of electricity consumption. Its effectiveness is demonstrated by calculating the cost of electricity for households located in the Krasnodar region using renewable energy sources. It is shown that this approach to the formation of tariffs for consumers allows the household to receive additional savings from the efficient use of energy installations on RES and energy storage devices in terms of alignment of the energy consumption schedule. This creates a significant incentive for households to use them and contributes to increasing the effectiveness of government renewable energy support programs, including by solving the acute problem of raising electricity tariffs from the grid.

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Developing a Web-based Application for Energy Supply Systems

ICONIET PROCEEDING ◽

10.33555/iconiet.v2i3.28 ◽

2019 ◽

Vol 2 (3) ◽

pp. 164-169

Author(s):

Mohammed Faza ◽

Maulahikmah Galinium ◽

Matthias Guenther

Keyword(s):

Energy Supply ◽

Power Plants ◽

Acceptance Testing ◽

Design Activity ◽

Unit Testing ◽

Validity Testing ◽

Energy Supply System ◽

Time Series Modelling ◽

Supply Systems ◽

Energy Supply Systems

An energy supply system consists of a system of power plants and transmission anddistribution systems that supply electrical energy. The present project is limited to the modellingof the generation system. Its objective is the design and implementation of a web-basedapplication for simulating energy supply systems using the Laravel framework. The projectfocuses on six modules representing geothermal energy, solar energy, biopower, hydropower,storage, and fossil-based energy that are allocated to satisfy a given power demand. It isexecuted as a time series modelling for an exemplary year with hourly resolution. Thedevelopment of the software is divided into four steps, which are the definition of the userrequirements, the system design (activity, use case, system architecture, and ERD), the softwaredevelopment, and the software testing (unit testing, functionality testing, validity testing, anduser acceptance testing). The software is successfully implemented. All the features of thesoftware work as intended. Also, the software goes through validity testing using three differentinput data, to make sure the software is accurate. The result of the testing is 100% accuracy withrespect to the underlying model that was implemented in an excel calculation.

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Application of the multiagent approach to the research of integrated energy supply systems

E3S Web of Conferences ◽

10.1051/e3sconf/201911401006 ◽

2019 ◽

Vol 114 ◽

pp. 01006

Author(s):

Gleb Mayorov ◽

Valery Stennikov ◽

Eugene Barakhtenko

Keyword(s):

Energy Supply ◽

Power Plants ◽

Energy Systems ◽

Integrated System ◽

Hydroelectric Power Station ◽

Hydroelectric Power ◽

Large Area ◽

Technological Infrastructure ◽

Supply Systems ◽

Energy Supply Systems

The current technological infrastructure in the electricity, heat, cold, and gas supply, as a rule, is formed and controlled separately by local systems and tasks. The traditionally considered energy systems unite large energy sources, such as hydroelectric power station, combined heat and power plants, boiler plants, and electric and pipeline networks distributed over a large area. New trends in the energy sector necessitate a revision of the principles of construction of energy systems and the creation of integrated energy supply systems. Combining separate different types of systems of different levels into a single integrated system with many coordinated elements can contribute to the implementation of new functionality, the use of more advanced technologies in operation and the active participation of consumers with distributed generation in the energy supply process. For the study of integrated energy supply systems it is proposed to use a multiagent approach, which is one of the promising areas of research for complex systems. This approach is used in many subject areas to study systems that include many elements with complex behavior. Such systems include integrated energy supply systems. The solution of the problem on the basis of the agent approach is developed by a multitude of interrelated agents.

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Assessment and Enhancement of the Energy Supply System Efficiency with Emphasis on the Cogeneration and Renewable as Main Directions for Fuel Saving

International Journal of Energy Optimization and Engineering ◽

10.4018/ijeoe.2015040101 ◽

2015 ◽

Vol 4 (2) ◽

pp. 1-21

Author(s):

Sergey V. Zharkov

Keyword(s):

Energy Supply ◽

Power Plants ◽

Renewable Energy Sources ◽

Thermal Power ◽

Economic Resource ◽

Energy Supply System ◽

Fuel Substitution ◽

Supply Systems ◽

Energy Supply Systems ◽

Promising Type

This paper presents methods for assessing economic, resource and environmental efficiency of cogeneration plants (CPs) and energy supply systems as a whole and ways of its improvement, the main of which are the development of cogeneration and renewable energy sources (RES). The problem of allocating fuel and financial costs in the case of the combined production in accordance with the criterion of equal profitability of supplied products is solved. The methods allow determining specific indicators of supplied products which makes it possible to compare the efficiency of energy supply systems of different companies and countries, and to define their future target indicators. The technology of introducing RES-based power plants to the energy supply systems by means of using unstabilized RES-based power for direct fuel substitution at thermal power plants (the wind is viewed as the most promising type of RES). This paper can be interesting to power engineering specialists, businessmen and economists, and also participants of the upcoming United Nations Climate Change Conference aimed at achieving a universal agreement on climate, which will be held in 2015 in Paris.

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Assessment and Enhancement of the Energy Supply System Efficiency with Emphasis on the Cogeneration and Renewable as Main Directions for Fuel Saving

Sustaining Power Resources through Energy Optimization and Engineering - Advances in Computer and Electrical Engineering ◽

10.4018/978-1-4666-9755-3.ch001 ◽

2016 ◽

pp. 1-25 ◽

Cited By ~ 2

Author(s):

Sergey Zharkov

Keyword(s):

Energy Supply ◽

Power Plants ◽

Renewable Energy Sources ◽

Thermal Power ◽

Fuel Saving ◽

Economic Resource ◽

Energy Supply System ◽

Fuel Substitution ◽

Supply Systems ◽

Energy Supply Systems

The paper presents methods for assessing economic, resource and environmental efficiency of energy supply systems and ways of its improvement, the main of which are the development of cogeneration and renewable energy sources (RES). The problem of allocating fuel and financial costs in the case of the combined production is solved. The methods allow determining specific indicators of supplied products which makes it possible to compare the efficiency of energy supply systems of different companies and countries, and to define their future target indicators. The technology of introducing RES-based power plants to the energy supply systems by means of using unstabilized RES-based power for direct fuel substitution at thermal power plants. The paper can be interesting to power engineering specialists, businessmen and economists, and also participants of the upcoming UN Climate Change Conference aimed at achieving a universal agreement on climate, which will be held in 2015 in Paris.

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Energy, cost, and carbon dioxide optimization of disaggregated, regional energy-supply systems

Energy ◽

10.1016/0360-5442(93)90009-3 ◽

1993 ◽

Vol 18 (12) ◽

pp. 1187-1205 ◽

Cited By ~ 18

Author(s):

H.-M. Groscurth ◽

Th. Bruckner ◽

R. Kümmel

Keyword(s):

Carbon Dioxide ◽

Energy Cost ◽

Energy Supply ◽

Regional Energy ◽

Supply Systems ◽

Energy Supply Systems

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Assessment and Enhancement of the Energy Supply System Efficiency with Emphasis on the Cogeneration and Renewable as Main Directions for Fuel Saving

International Journal of Energy Optimization and Engineering ◽

10.4018/ijeoe.2014100101 ◽

2014 ◽

Vol 3 (4) ◽

pp. 1-20 ◽

Cited By ~ 4

Author(s):

S. V. Zharkov

Keyword(s):

Wind Power ◽

Energy Supply ◽

Power Plants ◽

Combined Cycle ◽

Hydrogen Energy ◽

Economic Resource ◽

Wind Power Plants ◽

Energy Products ◽

Supply Systems ◽

Energy Supply Systems

The paper presents methods for assessing economic, resource and environmental efficiency of cogeneration plants (CPs) and energy supply systems as a whole and ways of its improvement, the main of which are the development of cogeneration and renewable energy sources (RES). The problem of allocating fuel and financial costs at the combined production in accordance with the criterion of equal profitability of supplied energy products is solved. The methods allow determining specific indicators of supplied energy products. The technology of introducing RES-based power plants to the energy supply systems by means of using unstabilized RES-based power for direct fuel substitution in thermal cycles of gas-turbine (combined cycle) and steam-turbine plants (the wind is viewed as the most promising type of RES). Connection of wind power plants to an electric grid through thermal power plants allows us to avoid solving the problems of maintaining power quality and operating reserve of the wind power plants capacity in the power system and also to use wind energy at the plants of combined heat and high-quality electric power production, small ones included. The technology can promote smooth transition to hydrogen energy. It is shown that the cogeneration saves more than 20% of fuel, and its combination with wind power station – more than 50%.

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A Methodological Approach to Assessing the Possible Effect of Distributed Generation Expansion on Regional Energy Supply Systems

Energy Systems Research ◽

10.38028/esr.2021.02.0006 ◽

2021 ◽

pp. 64-69

Author(s):

E. Galperova

Keyword(s):

Electric Power ◽

Distributed Generation ◽

Energy Supply ◽

Power Plants ◽

Methodological Approach ◽

Electric Power Industry ◽

Optimization Method ◽

Regional Energy ◽

Supply Systems ◽

Energy Supply Systems

One of the new challenges arising from the transition of the energy industry to the path of intelligent development is to assess the effect of distributed generation (DG) on the prospects for the development of regional energy supply systems. Such an assessment requires that the factors characterized by high uncertainty be taken into account. In this case, it is expedient to employ a combination of the optimization method with the Monte Carlo method. Such an approach has already been adopted in a model (computer program) developed at the Melentiev Energy Systems Institute, Siberian Branch of the Russian Academy of Sciences. This model is designed to determine the rational mix of new power plants (with investment risks assessed and factored in) and the likely cost of electricity generation in a given aggregated region. We propose using this model as a source of projected data for an approximate assessment of the DG expansion, given the projected conditions for the energy sector and electric power industry development. It may also provide the basis for an array of research tools for relevant studies. The new toolkit requires a more detailed representation of the administrative division and the inclusion of consumers with their sources of electric power generation in the generating capacity. Although such an estimate is approximate, it can give an overall idea of the extent to which the cost and demand for electricity may vary under different options for the DG expansion in a region.

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