Experiment of a Tesla Engine for Wind Energy Capture

2013 ◽  
Vol 284-287 ◽  
pp. 1051-1056
Author(s):  
Dein Shaw ◽  
Feng Ting Liu ◽  
Jyun Jhe Yu
Keyword(s):  
Wind Energy ◽  
Environmental Problem ◽  
Mechanical Energy ◽  
Green Energy ◽  
Energy Transformation ◽  
Rotating Speed ◽  
Energy Capture ◽  
Low Torque ◽  
Moving Fluid ◽  
Disk Spacing

Tesla engine converts the fluid energy into the rotating energy by using the viscosity of moving fluid. Because this machine has high rotating speed but low torque, the application of this engine is still under discussion. However, due to environmental problem, a lot of researches focus on green energy, the air engine becomes an important research issue. The main power source of Tesla engine is compressed air. Because only the mechanical energy transformation occurs inside the engine, there is no by-product produced by the engine. In this study, this device was considered to extract power from wind energy. The viscous stress is relatively small when it is compared to drag force or pressure. Therefore, this study is to discover the possibility of this application through the experiment. The unique inlet was constructed to guide the wind into the engine’s casing. The disk spacing was also changed to discover the optimum disk spacing. The main purpose is to test the engine’s output for its application on the wind energy capture.

scholarly journals Triboelectric Nanogenerators for Harvesting Wind Energy: Recent Advances and Future Perspectives

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6949
Author(s):  
Jiaqi Li ◽  
Jie Chen ◽  
Hengyu Guo
Keyword(s):  
Energy Harvesting ◽  
Wind Energy ◽  
Energy Conversion ◽  
Large Scale ◽  
Coupling Effect ◽  
Mechanical Energy ◽  
Energy Conversion Efficiency ◽  
Green Energy ◽  
Structure Design ◽  
Triboelectric Nanogenerator

Throughout the world, wind energy is widely distributed as one of the most universal energy sources in nature, containing a gigantic reserve of renewable and green energy. At present, the main way to capture wind energy is to use an electromagnetic generator (EMG), but this technology has many limitations; notably, energy conversion efficiency is relatively low in irregular environments or when there is only a gentle breeze. A triboelectric nanogenerator (TENG), which is based on the coupling effect of triboelectrification and electrostatic induction, has obvious advantages for mechanical energy conversion in some specific situations. This review focuses on wind energy harvesting by TENG. First, the basic principles of TENG and existing devices’ working modes are introduced. Second, the latest research into wind energy-related TENG is summarized from the perspectives of structure design, self-power sensors and systems. Then, the potential for large-scale application and hybridization with other energy harvesting technologies is discussed. Finally, future trends and remaining challenges are anticipated and proposed.

Maximum Peak Power Tracking-Based Control Algorithms with Stall Regulation for Optimal Wind Energy Capture

2008 ◽  
Vol 128 (4) ◽  
pp. 411-417 ◽  
Author(s):  
Bunlung Neammanee ◽  
Korawit Krajangpan ◽  
Somporn Sirisumrannukul ◽  
Somchai Chatratana
Keyword(s):  
Wind Energy ◽  
Peak Power ◽  
Control Algorithms ◽  
Energy Capture ◽  
Maximum Peak

scholarly journals The Energy Transition in the Visegrad Group Countries

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2212
Author(s):  
Ewelina Kochanek
Keyword(s):  
Renewable Energy Sources ◽  
Mining Industry ◽  
Energy Transition ◽  
Green Energy ◽  
Political Elite ◽  
Energy Transformation ◽  
Diagnostic Features ◽  
Difficult Situation ◽  
Starting Point ◽  
Visegrad Group

The aim of the research is to analyse the energy transition in the Visegrad Group countries, because they depend on the production of energy from the burning of fossil fuels, and transition is a huge challenge for them. The diversity of the energy transformation in the V4 countries was examined by using two qualitative methods, including literature analysis and comparative analysis. The timeframe of the study was set for the period from 2020 to 2030, as these years are crucial for the implementation of the European Green Deal Programme. Four diagnostic features were taken into account in the analysis: the share of RES in final energy consumption, reduction of CO2 emissions in the non-Emissions Trading System (ETS) sector, date of withdrawal of coal from the economy, and energy efficiency. The analysis shows that the V4 countries have different approaches and levels of energy transformation in their economies. Poland is in the most difficult situation, being the most dependent on the production of electricity from coal, as well as having the largest number of employees in the coal and around coal sector. The other countries of the group can base their transformation on nuclear energy, as each of them has at least four such power units. The increased use of biomass for energy and heat production is the most important stimulus for Renewable Energy Sources (RES) growth in the analysed countries. The ambivalent attitude of the political elite to unconventional sources in the four analysed countries significantly hinders the development of certain forms of green energy. However, it has been observed that an increasing proportion of the population, especially those living in regions of the country where there is no fossil fuel mining industry, has a positive attitude towards energy transformation. The study is the first that shows the state of involvement in the process of systemic change of the Visegrad Group countries. The results can serve as a starting point for understanding the reticence of this group of European countries towards the transformation phenomenon, as well as contributing to further research on the implementation of closed-circuit economies in the Visegrad Group countries.

Creating the Wind Energy for Operating the 3-C-Section Blades Wind Car

2012 ◽  
Vol 622-623 ◽  
pp. 1188-1193 ◽  
Author(s):  
Hüseyin Çamur ◽  
Youssef Kassem
Keyword(s):  
Wind Speed ◽  
Angular Velocity ◽  
Wind Energy ◽  
Drag Force ◽  
Mechanical Energy ◽  
Main Shaft ◽  
Airflow Velocity ◽  
Low Speed ◽  
Low Wind Speed

The purpose of this work is to determine the drag characteristics and the torque of three C-section blades wind car. Three C-section blades are directly connected to wheels by using of various kinds of links. Gears are used to convert the wind energy to mechanical energy to overcome the load exercised on the main shaft under low speed. Previous work on three vertical blades wind car resulted in discrepancies when compared to this work. Investigating these differences was the motivation for this series of work. The calculated values were compared to the data of three vertical blades wind car. The work was conducted in a low wind speed. The drag force acting on each model was calculated with an airflow velocity of 4 m/s and angular velocity of the blade of 13.056 rad/s.

Research on maximum wind energy capture control strategy

2010 ◽  
Author(s):  
Xingjia Yao ◽  
Shu Liu ◽  
Xiaodong Wang ◽  
Hongliang Jiang ◽  
Faming Sui ◽  
...  
Keyword(s):  
Wind Energy ◽  
Control Strategy ◽  
Energy Capture ◽  
Maximum Wind

scholarly journals Mapping the potential of green energy to border societies of Indonesia and Timor Leste (a preliminary study)

2018 ◽  
Vol 197 ◽  
pp. 13006
Author(s):  
Frederikus Fios
Keyword(s):  
Wind Energy ◽  
Positive Impact ◽  
Mineral Resources ◽  
Environmentally Friendly ◽  
Green Energy ◽  
Timor Leste ◽  
Preliminary Study ◽  
Border Areas ◽  
The Republic ◽  
Small Industries

The fulfillment of renewable energy supported by environmentally friendly technology is important for the Indonesian people especially in the border areas of Indonesia and Timor Leste today. This is a preliminary study that aims to map the possibility of wind energy in the border areas of Indonesia and Timor Leste, especially in North Central Timor District, East Nusa Tenggara Province, Indonesia. The method of research is the qualitative method with participatory observation approach. The results of the study found that the potential of wind energy in Mount Ainiut that can generate electricity of 7 x 3.5 = 24.5 Megawatts can be consumed 20,000 homes and small industries scattered around the West Timor Region. Local people are also open to accept the construction of microgrid electric technology facilities based on wind energy that is environmentally friendly. The findings of potential wind and acceptance of local communities can be important information for the Indonesian government to adopt relevant policies to support development efforts to provide electricity for communities in Indonesia's border regions of Indonesia and Timor Leste where satisfactory electricity needs are not yet met. Collaboration of the private and government sectors, especially the ministries in charge of the mineral resources of the Republic of Indonesia is very important. This has a positive impact on the economic growth of societies in the border areas of Indonesia and Timor Leste.

Improved design of Savonius rotor for green energy production from moving Singapore metropolitan rapid transit train inside tunnel

2018 ◽  
Vol 233 (7) ◽  
pp. 2426-2441 ◽  
Author(s):  
Praveen Laws ◽  
Rajagopal V Bethi ◽  
Pankaj Kumar ◽  
Santanu Mitra
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Degrees Of Freedom ◽  
Fossil Fuels ◽  
Numerical Study ◽  
Electrical Energy ◽  
Daily Basis ◽  
Green Energy ◽  
Subway Tunnel ◽  
Savonius Wind Turbine

Nonrenewable fossil fuels are finite resources that will ultimately deplete in near future. Nature sheds colossal amount of renewable wind energy but humans harvest a morsel. Taking this into account a numerical study is proposed on wind energy harvesting from a speeding subway train. Subways trains generate a remarkable gust of wind that can be transferred to useful electrical energy on daily basis. To this aim, a numerical analysis is modeled by placing Savonius wind turbine in a subway tunnel to crop the wind energy produced from the speeding train. The passage of train in the tunnel generates very high velocity slipstreams along the length of the tunnel. The slipstream phenomena develop a boundary layer regime that will be absorbed by the Savonius wind turbine to self-start and generate power. In the present study, a two-dimensional numerical simulation with modified turbine blade design is carried out using open source tool OpenFOAM® with PimpleDyMFoam solver coupled with six degrees of freedom mesh motion solver sixDoFRigidBodyMotion and k–ɛ turbulence modeling, to measure the amount of torque predicted by the rotor from the gust of wind produced by the speeding train in the tunnel. Being a self-start turbine with no yaw mechanism required the turbine collects air from any direction and converts it into useful power.

scholarly journals A Novel Dual-Rotor Turbine for Increased Wind Energy Capture

2014 ◽  
Vol 524 ◽  
pp. 012078 ◽  
Author(s):  
A Rosenberg ◽  
S Selvaraj ◽  
A Sharma
Keyword(s):  
Wind Energy ◽  
Energy Capture
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