Autonomous energy supply based on the wind-energy complex and hydrogen energy storage

2019 ◽  
pp. 12-26
Author(s):  
S. I. Nefedkin ◽  
A. O. Barsukov ◽  
M. I. Mozgova ◽  
M. S. Shichkov ◽  
M. A. Klimova
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Power Supply ◽  
Energy Supply ◽  
Heat Supply ◽  
Hot Water ◽  
Successful Implementation ◽  
High Wind ◽  
Wind Generators ◽  
Weak Wind

The paper proposes an alternative scheme of guaranteed electricity and heat supply of an energy-insulated facility with a high potential of wind energy without the use of imported or local fuel. The scheme represents a wind power complex containing the park of wind generators located at the points with high wind potential. The wind generators provide guaranteed power supply even in periods of weak wind. For heat supply of the consumer, all surplus of the electric power goes on thermoelectric heating of water in tanks of accumulators, and also on receiving hydrogen by a method of electrolysis of water. The current heat supply is carried out with the use of hot water storage tanks, and the heat supply during the heat shortage is carried out by burning the stored hydrogen in condensing hydrogen boilers. We have developed the algorithm of calculation and the program "Wind in energy" which allows calculating annual balance of energy and picking up necessary quantity of the equipment for implementation of the scheme proceeding from the annual schedule of thermal and electric loading, and also potential of wind energy in the chosen region. The calculation-substantiation of the scheme proposed in relation to the real energy-insulated object Ust-Kamchatsk (Kamchatka) is carried out. The equipment for the implementation of an alternative energy supply scheme without the use of imported fuel is selected and compared with the traditional energy supply scheme based on a diesel power plant and a boiler house operating on imported fuel. With the introduction of an alternative power supply scheme, the equipment of the traditional scheme that has exhausted its resource can be used for backup power supply. Using climate databases, a number of energy-insulated facilities in the North and East of Russia with high wind energy potential are considered and the conditions for the successful implementation of the energy supply scheme are analyzed. This requires not only a high average annual wind speed, but also a minimum number of days of weak wind. In addition, it is necessary that the profile of the wind speed distribution in the annual section coincides with the profile of the heat load consumption.

scholarly journals Extreme wind shear events in US offshore wind energy areas and the role of induced stratification

2021 ◽  
Vol 6 (4) ◽  
pp. 1043-1059
Author(s):  
Mithu Debnath ◽  
Paula Doubrawa ◽  
Mike Optis ◽  
Patrick Hawbecker ◽  
Nicola Bodini
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Wind Shear ◽  
New York State ◽  
Vertical Gradient ◽  
Detection Algorithm ◽  
Offshore Wind ◽  
Offshore Wind Energy ◽  
High Wind ◽  
Independent Events

Abstract. As the offshore wind industry emerges on the US East Coast, a comprehensive understanding of the wind resource – particularly extreme events – is vital to the industry's success. Such understanding has been hindered by a lack of publicly available wind profile observations in offshore wind energy areas. However, the New York State Energy Research and Development Authority recently funded the deployment of two floating lidars within two current lease areas off the coast of New Jersey. These floating lidars provide publicly available wind speed data from 20 to 200 m height with a 20 m vertical resolution. In this study, we leverage a year of these lidar data to quantify and characterize the frequent occurrence of high-wind-shear and low-level-jet events, both of which will have a considerable impact on turbine operation. In designing a detection algorithm for these events, we find that the typical, non-dimensional power-law-based wind shear exponent is insufficient to identify many of these extreme, high-wind-speed events. Rather, we find that the simple vertical gradient of wind speed better captures the events. Based on this detection method, we find that almost 100 independent events occur throughout the year with mean wind speed at 100 m height and wind speed gradient of 16 m s−1 and 0.05 s−1, respectively. The events have strong seasonal variability, with the highest number of events in summer and the lowest in winter. A detailed analysis reveals that these events are enabled by an induced stable stratification when warmer air from the south flows over the colder mid-Atlantic waters, leading to a positive air–sea temperature difference.

Weather research & forecasting model and MERRA-2 data for wind energy evaluation at different altitudes in Bolivia

2021 ◽  
pp. 0309524X2110197
Author(s):  
Rober Mamani ◽  
Patrick Hendrick
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Electricity Generation ◽  
Wind Farms ◽  
Forecasting Model ◽  
High Wind ◽  
Wind Speeds ◽  
Energy Evaluation ◽  
Wind Flows ◽  
Different Altitudes

Wind energy is one of the most promising alternatives for a clean and ecological electricity generation. However, the implementation of efficient wind farms requires accurate data and measurements. This work analyses the MERRA-2 satellite datasets to compare and complement it with WRF simulations in different regions and altitudes in Bolivia, such as the Altiplano, Amazon and Chaco. A 41 years of hourly wind speed from MERRA-2 was used to analyze wind averages and characteristics over the year. WRF simulations for representative months were used to analyze wind shear and wind flows along Bolivia. The main results are related to wind speed index in different sites which varied between 0.90 and 1.09 and the periods of high wind speeds that is May—October in the Altiplano, and June—December in the Amazon and Chaco. However, the main findings are the differences between MERRA-2 data and WRF simulations that is linked to the topography of the sites in study.

THE PROSPECT OF USING OWN TPP IN POWER SUPPLY OF FEDERAL SCIENTIFIC AGROENGINEERING CENTER VIM

2020 ◽  
Vol 4 (41) ◽  
pp. 9-16
Author(s):  
VALENTIN GUSAROV ◽  
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Power Unit ◽  
Economic Efficiency ◽  
Power Supply ◽  
Thermal Power Plant ◽  
Energy Supply ◽  
Heat Supply ◽  
Thermal Power ◽  
Industrial Enterprises

As industrial production expands, infrastructure develops, and new technological equipment is put into operation, energy needs increase, which means that the role of reliable energy supply to industrial enterprises increases. Electricity is used to light the territory of the enterprise, workshops, and laboratories, operate machines and mechanisms, automatically control the heat supply of premises and other technological processes. The level of reliability and security of heat and electricity supplies determines the stability of the enterprise and its economic efficiency. (Research purpose) The research purpose is in studying the economic efficiency of using own thermal power plant based on a gas turbine power unit. (Materials and methods) The article presents the advantages of using own thermal power plant that runs on natural gas. The most efficient balance of heat and electric energy production was determined. (Results and discussion) The article presents the construction of thermal power plant for the heat supply of buildings and structures defined by the project on the territory of the Federal Scientific Agroengineering Center VIM. The article considers the emerging trend of industrial enterprises building their own power plants, which make it possible to provide themselves with heat and electricity independently and guarantee more reliable operation of workshops by reducing downtime and disruptions of technological processes. (Conclusions) The use of a thermal power plant based on a gas turbine power unit will allow to get an annual profit, ensure energy independence, increase the reliability of power supply, and increase the profitability of production. Many large enterprises, pursuing economic goals, along with their own electricity supply, supply «excess» energy to centralized networks, often the level of energy supply «for export» significantly exceeds the level of their own consumption.

scholarly journals A Flutter-Based Electromagnetic Wind Energy Harvester: Theory and Experiments

2019 ◽  
Vol 9 (22) ◽  
pp. 4823 ◽  
Author(s):  
Zhuang Lu ◽  
Quan Wen ◽  
Xianming He ◽  
Zhiyu Wen
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Low Power ◽  
Power Supply ◽  
Energy Harvester ◽  
Electronic Devices ◽  
Power Electronic ◽  
Energy Harvesters ◽  
Wind Speeds ◽  
Output Performance

Wind energy harvesting is a promising way to offer power supply to low-power electronic devices. Miniature wind-induced vibration energy harvesters, which are currently being focused on by researchers in the field, offer the advantages of small volume and simple structure. In this article, an analytical model was proposed for the kinetic analysis of a flutter-based electromagnetic wind energy harvester. As a result, the critical wind speeds of energy harvesters with different magnet positions were predicted. To experimentally verify the analytical predictions and investigate the output performance of the proposed energy harvester, a small wind tunnel was built. The critical wind speeds measured by the experiment were found to be consistent with the predictions. Therefore, the proposed model can be used to predict the critical wind speed of a wind belt type energy harvester. The experimental results also show that placing the magnets near the middle of the membrane can result in lower critical wind speed and higher output performance. The optimized wind energy harvester was found to generate maximum average power of 705 μW at a wind speed of 10 m/s, offering application prospects for the power supply of low-power electronic devices. This work can serve as a reference for the structural design and theoretical analysis of a flutter-based wind energy harvester.

scholarly journals Study of Solar Radiation and Wind Characteristics in Various Regions of Uzbekistan

2020 ◽  
Vol 220 ◽  
pp. 01061
Author(s):  
E.B. Saitov ◽  
Y.B. Sobirov ◽  
I.A. Yuldoshev ◽  
I.R. Jurayev ◽  
Sh. Kodirov
Keyword(s):  
Wind Speed ◽  
Solar Radiation ◽  
Wind Energy ◽  
Energy Supply ◽  
Primary Energy ◽  
Economic Indicators ◽  
Specific Data ◽  
Wind Characteristics ◽  
Primary Energy Supply ◽  
Technical And Economic Indicators

The article discusses methods for monitoring solar radiation and wind characteristics and practical principles of use. The efficiency of using solar and wind energy largely depends on how accurately the design took into account specific data on the arrival of solar radiation or wind speed at the site of the intended operation of installations. The instability of the primary energy supply makes it necessary to supply the installations with accumulators, the choice of capacity of which also affects the size of the energy receivers, and therefore the technical and economic indicators.

ON POTENTIAL OF USING WIND TURBINES WITH COAXIAL WIND ROTORS FOR AUTONOMOUS POWER SUPPLY

2018 ◽  
pp. 25-33
Author(s):  
L. I. Knysh
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Power Supply ◽  
Energy Systems ◽  
Experimental Setup ◽  
Return Flows ◽  
Turbine Capacity ◽  
Wind Energy Systems

The paper presents the experimental research results for the horizontal-axis wind turbine with coaxial wind rotors. It is assumed that such coaxial layout of the wind turbine can be used for designing of the wind energy systems with relatively low capacity and limited location area since the coaxial systems have advantages in overall dimensions and maximum using of the swept area. Possibility of coaxial horizontal-axis wind turbines usage is determined by positive or negative effect of turbines on each other. Literature review shows that closely spaced wind turbines can generally improve flow characteristics under certain conditions and consequently increase wind energy system efficiency. We have carried out the experiments in T-5 wind tunnel with two coaxial model two-bladed wind turbines which rotate in opposite directions. The generator of the first turbine and first turbine itself are located on the same shaft in the test section of wind tunnel. The second generator is in a lower compartment of the experimental setup and is connected by the transmission. We have measured the dynamic, energy and frequency characteristics of wind energy systems based on created experimental setup. A Pitot tube and automatic metering devises have measured the dynamic parameters and energy performance respectively. A frequency counter has saved all of the data obtained with the laser frequency measurement technique. The experiment has some specific technical features so the data received need to be corrected. The coaxial wind turbine power has decreased in comparison to isolated wind turbine at low wind speed. The return flows reinforce turbulence so wind speed falls. If wind speed increases, the impact of the return flows decreases, the coaxial wind turbine capacity significantly grows and exceeds isolated turbine capacity. The possibility of using wind turbines with coaxial wind rotors for autonomous power supply is shown. Such wind turbines are perspective and require more detailed analysis.

scholarly journals How (Un)sustainable Environments Are Related to the Diffusion of COVID-19: The Relation between Coronavirus Disease 2019, Air Pollution, Wind Resource and Energy

2020 ◽  
Vol 12 (22) ◽  
pp. 9709
Author(s):  
Mario Coccia
Keyword(s):  
Public Health ◽  
Air Pollution ◽  
Renewable Energy ◽  
Wind Speed ◽  
Wind Energy ◽  
Energy Production ◽  
High Wind ◽  
Negative Effects ◽  
Low Wind Speed ◽  
Novel Coronavirus

The pandemic caused by novel coronavirus disease 2019 (COVID-19) is generating a high number of cases and deaths, with negative effects on public health and economic systems. One of the current questions in the contemporary environmental and sustainability debate is how high air pollution and reduced use of renewable energy can affect the diffusion of COVID-19. This study endeavors to explain the relation between days of air pollution, wind resources and energy, and the diffusion of COVID-19 to provide insights into sustainable policy to prevent future epidemics. The statistical analysis here focuses on a case study of Italy, one of the first countries to experience a rapid increase in confirmed cases and deaths. The results reveal two main findings: (1) cities with high wind speed and high wind energy production have a lower number of cases of COVID-19 in the context of a more sustainable environment; (2) cities located in hinterland zones with high air pollution, low wind speed and less wind energy production have a greater number of cases and total deaths. The results presented here suggest that the pandemic caused by novel coronavirus (SARS-CoV-2) and future epidemics similar to COVID-19 cannot be solved only with research in medicine but the solution also needs advanced capabilities and technologies for supporting sustainable development based on the reduction of air pollution and increase of production in renewable energy to improve air quality and as a consequence public health.

The Research of Composite Solar and Wind Energy Materials Generator

2012 ◽  
Vol 531 ◽  
pp. 584-588
Author(s):  
Lian Zhong Zhang ◽  
Jing Min Li
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Wind Turbines ◽  
The Body ◽  
Energy Utilization ◽  
Normal Operation ◽  
Energy Materials ◽  
Wind Speeds ◽  
Wind Generators ◽  
Strong Winds

Composite generator of solar and wind energy materials the generators， energy-saving environmental protection as a precondition to full use of green renewable energy, making wind power in weak wind conditions and strong winds can maintain normal operation of wind turbines how wind instability Under normal operation, but at higher wind speeds, the blades are not damaged? We start from the pressure-controlled device, the mechanical components and microelectronic technology combine to complete the slurry from the regulator controlled by changing the role of plasma from the body, strengthen the control of wind turbines, wind generators can adapt to changes in wind speed. In the initial wind speed easy to start; in the design of wind speed and wind speed between the initial access to higher wind energy utilization coefficient; In addition, the weak and the solar wind is sufficient,solar power can also get the power to add the function to ensure that the entire power system running smoothly, to achieve full power generation purposes.

scholarly journals Modeling and Analysis of a Flywheel Energy Storage System for Voltage Regulation

2021 ◽  
Author(s):  
Kamran Masteri Farahani
Keyword(s):  
Energy Storage ◽  
Wind Energy ◽  
Power Supply ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Voltage Regulation ◽  
Limiting Factor ◽  
Electricity Grid ◽  
Wind Generators

Ontario in 21st century is progressing rapidly to source a bulk of its energy supply from green and renewable energy sources, including wind energy. However there are technical challenges. A significant limiting factor in the large-scale integration of wind energy is the inherent intermittent nature of wind supply. The purpose of the research project is to develop appropriate control systems to integrate energy storage into the Ontario electricity grid given that energy storage constitutes a fundamental component of a modernized electricity grid. The challenges are multiple. Given that wind generators driven by wind have an output that is intermittent and highly variable, as a result the power supply voltages on distribution lines change at a rapid rate. This research develops a control strategy for the flywheel system to inject or draw real power to or from the connected line on a voltage command, thereby mitigating voltage swings created by variable and intermittent power supply from wind generators.

scholarly journals Modeling and Analysis of a Flywheel Energy Storage System for Voltage Regulation

2021 ◽  
Author(s):  
Kamran Masteri Farahani
Keyword(s):  
Energy Storage ◽  
Wind Energy ◽  
Power Supply ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Voltage Regulation ◽  
Limiting Factor ◽  
Electricity Grid ◽  
Wind Generators

Ontario in 21st century is progressing rapidly to source a bulk of its energy supply from green and renewable energy sources, including wind energy. However there are technical challenges. A significant limiting factor in the large-scale integration of wind energy is the inherent intermittent nature of wind supply. The purpose of the research project is to develop appropriate control systems to integrate energy storage into the Ontario electricity grid given that energy storage constitutes a fundamental component of a modernized electricity grid. The challenges are multiple. Given that wind generators driven by wind have an output that is intermittent and highly variable, as a result the power supply voltages on distribution lines change at a rapid rate. This research develops a control strategy for the flywheel system to inject or draw real power to or from the connected line on a voltage command, thereby mitigating voltage swings created by variable and intermittent power supply from wind generators.

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