scholarly journals Optimization of Hybrid Wind and Solar Power Generator at Izazi, Tanzania

2021 ◽  
pp. 1-16
Author(s):  
Arthur M. Omari
Keyword(s):  
Solar Wind ◽  
Solar Energy ◽  
Wind Energy ◽  
Wind Turbine ◽  
Solar Power ◽  
Minimum Cost ◽  
Electrical Energy ◽  
Photoelectric Effect ◽  
Atmospheric Conditions ◽  
Solar Pv

Solar can be converted directly into electrical energy by using solar photovoltaic (PV) which convert solar radiation by the photoelectric effect, wind energy can be converted into electrical energy by using alternator coupled with a wind turbine. Solar power system consists of solar panels, solar PV cells and batteries for storing DC energy. Solar energy is available only during the day time whereas wind energy is available throughout the day; it is only depending upon the atmospheric conditions. Wind and solar are complimentary to each other and therefore makes the system more reliable throughout the year. The study at Izazi village, Iringa – Tanzania shows that the available solar energy and wind energy are potential and sufficient for solar-wind hybrid technology. Using the data obtained from NASA for local wind and solar resources for Izazi village Iringa, Tanzania. The simulation using homer analysis software, shows that to reach the minimum cost, the solar PV modules should contribute more energy than wind turbine. The optimization results obtained therefore shows the solar-wind hybrid system can provide a solution for supplying electricity at Izazi. This model result from Izazi village can be applied easily to other villages with similar environmental condition .

scholarly journals Prototype Hybrid Power Plant of Solar Panel and Vertical Wind Turbine as a Provider of Alternative Electrical Energy at Kenjeran Beach Surabaya

2020 ◽  
Vol 2 (3) ◽  
pp. 108-113
Author(s):  
Anggara Trisna Nugraha ◽  
Dadang Priyambodo
Keyword(s):  
Solar Energy ◽  
Wind Energy ◽  
Wind Turbine ◽  
Electrical Energy ◽  
Vertical Axis ◽  
Solar Panel ◽  
Vertical Axis Wind Turbine ◽  
Energy Potential ◽  
Tropical Country ◽  
Wind Speeds

Indonesia, which is a tropical country, has a very large potential for solar energy because of its area that stretches across the equator, with a radiation magnitude of 4.80 kWh / m2 / day or equivalent to 112,000 GWp. On the other hand, the earth receives solar power of 1.74 x 1017 W / hour and about 1-2% of it is converted into wind energy. However, from the total energy potential, Indonesia has only utilized around 10 MWp for solar energy and not much different, wind energy, whose utilization is planned to reach 250 MW in 2025, has only been utilized around 1 MW of the total existing potential. With this potential, to be able to supply additional power and help save energy for existing facilities in the building, a Prototype of Solar Panel Hybird and Vertical Axis Wind Turbine was created. The design of this prototype is a combination of savonious type turbines and solar panels, where the use of this type of turbine is because it can rotate at low wind speeds (low wind velocity) and its construction is very simple.

Remote Solar, Wind, and Hybrid Solar/Wind Energy Systems for Purifying Water

2003 ◽  
Vol 125 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Brian D. Vick ◽  
R. Nolan Clark ◽  
Junyi Ling ◽  
Shitao Ling
Keyword(s):  
Solar Wind ◽  
Solar Energy ◽  
Wind Energy ◽  
Water Purification ◽  
Energy Systems ◽  
Solar Pv ◽  
Pv System ◽  
Solar Pv System ◽  
Electrical Loads ◽  
Wind Energy Systems

Solar energy, wind energy, and a combination of wind and solar energy have been used successfully to power an UV (ultraviolet) water purification system. Five different solar and wind energy systems have been tested and although these renewable energy systems have been used for water purification, graphs contained in the paper can be used to determine the feasibility of powering other electrical loads. Combining a 100-W solar-PV system with a 500-W wind turbine resulted in pumping and purifying enough water to satisfy the potable water requirements of 4000 people (16000 liters/day) at an estimated equipment cost of $4630.

Effect of Slotted Angle on Savonius Wind Turbine Performance

2021 ◽  
Vol 104 ◽  
pp. 83-88
Author(s):  
Rahmat Wahyudi ◽  
Diniar Mungil Kurniawati ◽  
Alfian Djafar
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Electrical Energy ◽  
Speed Ratio ◽  
Angle Variation ◽  
Wind Speeds ◽  
Turbine Performance ◽  
Savonius Wind Turbine ◽  
Low Wind Speeds

The potential of wind energy is very abundant but its utilization is still low. The effort to utilize wind energy is to utilize wind energy into electrical energy using wind turbines. Savonius wind turbines have a very simple shape and construction, are inexpensive, and can be used at low wind speeds. This research aims to determine the effect of the slot angle on the slotted blades configuration on the performance produced by Savonius wind turbines. Slot angle variations used are 5o ,10o , and 15o with slotted blades 30% at wind speeds of 2,23 m/s to 4,7 m/s using wind tunnel. The result showed that a small slot angle variation of 5o produced better wind turbine performance compared to a standard blade at low wind speeds and a low tip speed ratio.

Designing Solar Power Plant Due to Consumer Load Schedule, Solar Energy Potential, and Electricity Prime Cost

2019 ◽  
pp. 168-196
Author(s):  
Yuliia Daus ◽  
Valeriy Kharchenko ◽  
Igor Viktorovich Yudaev ◽  
Vera Dyachenko ◽  
Shavkat Klychev
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Solar Power ◽  
Electrical Energy ◽  
Solar Power Plant ◽  
Energy Potential ◽  
Load Curve ◽  
Load Schedule ◽  
Production Building ◽  
The Cost

The object of research in the chapter is the solar power plant as the source of additional economically expedient power supply of the electrical energy consumer. The purpose of this research is to analyze the options for the layout of solar power plant, taking into account the solar energy potential of the district, the design features of the proposed location, the load curve of the consumer, and the cost of the generated electrical energy. The chapter presents the results of calculation and selection of the parameters of solar power plant elements on the roof of the consumer's production building. The chapter presents the results of research of the dependence of the cost of the electricity generated by the solar power plant on the number of installed panels, which in order to increase the realized solar energy potential of the district also allows adding photoelectric modules and accumulating devices in the layout of the operating station at tariff growth. The chapter presents the results of researching these areas, that are conducted by the authors and which are completely original.

scholarly journals Testing of Solar Power Plant Components Off-Grid Systems and Engineering Economic Analysis at Cemara Island, Brebes Regency, Indonesia

2019 ◽  
Vol 125 ◽  
pp. 10003 ◽  
Author(s):  
Jaka Windarta ◽  
Ardhito Pratama ◽  
Denis ◽  
Agung Nugroho
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Economic Analysis ◽  
Solar Power ◽  
Electrical Energy ◽  
Planning System ◽  
Solar Power Plant ◽  
Radiation Level ◽  
Plant System ◽  
Break Even Point

Indonesia is a country that is geographically located right in the equator and variously advantage and the wide for the use of solar energy. Indonesia has a relatively high radiation level, which is 4.80 kWh / m2 / day. Cemara Island is a tourist place but does not have electricity from PLN because access to its location is still difficult to reach. So from that chosen the planning system for the use of electrical energy using solar energy. However, economic analysis is needed so that the estimated weaknesses of the off-grid solar system can be estimated so as to reduce the risk of losses. The testing of each component in the Solar Power Plant system also needs to be done to determine the condition and quality of the components to be used. The economic analysis of the Cemara Island Solar Power Plant System with an initial investment of Rp 52,553,000, in scenario 1 uses interest at 6%, then in scenario 2 without using interest. Through calculations by looking for the value of COE (Energy Cost), NPC (Net Present Cost) and BEP (Break-Even Point), so that costs can be calculated by the manager with the number of 11 managers per month.

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 Photo Voltaic (PV) Cell Characteristics Design using M.File in Matlab

2020 ◽  
Vol 9 (3) ◽  
pp. 55-57
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
Power System ◽  
Solar Power ◽  
Electric Power System ◽  
Solar Pv ◽  
Essential Information ◽  
Pv Module ◽  
Pv Cell ◽  
Photo Voltaic

Solar energy is an emergent trend suitable for power production in both industrial and household appliances. The distributed renewable resource like solar energy is projected to act as a major responsibility in the forthcoming smart grid applications and technology. For the generation of electricity from solar power, it is essential to analyze the performance characteristics of the solar Photo Voltaic (PV) module, for instance, the power output of a PV panel and the prominent conversion efficiency. The performance of the electrical characterisation of a Photo Voltaic (solar) cells or module delivers the bond among the generated current and voltage on a typical solar PV cell which is termed as a V-I characteristic curve of solar cells. In this paper, a single diode correspondent circuit has been considered to inspect Voltage (V-I) and Power (P-V) characteristics for different insolation levels of a typical 100 W polycrystalline solar PV module. In order to validate the graphical depiction of the solar cell or module operation, M.file in MATLAB software was used. The generated characteristic curves summarise the connection between the current (I) and voltage (V) at the existing state of temperature with different irradiance. The obtained Power-Voltage (P-V) characterisation grant the essential information for building a solar electric power system to drive close up to its maximum peak powerpoint while feasible. The resulted graphs reveal that while considering the single diode model, the level of insolation varies with series resistance and by the generation of photo-current which in turn delivers the rapport of efficiency of solar cells. The proposed system is the initial step to learn a hybrid power system where some other renewable sources can be combined along with a solar power generation system.

scholarly journals ANALISIS KELAYAKAN TURBIN ANGIN KECEPATAN RENDAH TIPE NT1000W DI WILAYAH TERPENCIL

2019 ◽  
Vol 10 (1) ◽  
pp. 84-93
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Wind Energy ◽  
Wind Turbine ◽  
Electrical Energy ◽  
Remote Communities ◽  
Low Speed ◽  
Energy Needs ◽  
One Step ◽  
Research Studies

This research discusses the fulfillment of the electricity needs of remote communities that are closely related to electrification ratios. Electrification ratios in some isolated areas and scattered islands in Indonesia are still very low. To date, most of the electricity needs in Indonesia is still supplied by Diesel Power Electricity Generator (PLTD) which uses diesel as its fuel. Therefore, it is necessary the utilization of renewable energy as one step to fulfill the electrical energy needs. This research studies about the utilization of wind energy with PLTB by using low speed wind turbine to fulfill the electricity needs of remote communities and scattered islands in Indonesia. NT1000W is the latest technology of low speed wind turbine that can operate at wind speed of 1 m/d up to 60 m/d appropriate to the wind conditions in Indonesia. Testing conducted in west Sumatera particularly in Padang city and Kapo-Kapo Island provide a feasibility of PLTB NT1000W technically and financially.

scholarly journals A Review on Wind Turbine and Wind Generator Used in WECS

2019 ◽  
pp. 01-04
Author(s):  
Nitish Kumar Singh ◽  
Dashrath Kumar
Keyword(s):  
Energy Source ◽  
Wind Energy ◽  
Wind Turbine ◽  
Power Quality ◽  
Power Plants ◽  
Harmonic Distortion ◽  
Energy Resource ◽  
Electrical Energy ◽  
Wind Power Plants ◽  
Core Energy

The applications of wind energy develop much rapidly than the other renewable resources such as solar, geothermal and so on in the 21st century. It becomes the third core energy resource following non-conventional fuels as oil and chemical. Electrical energy generated by wind power plants is the best ever developing and most promising renewable energy source. The wind is a clean, free and limitless energy source. Wind Energy Generation Systems (WECS) are confront with increasing demands for power quality and harmonic distortion control. With the advance in power electronics technology, the fast growth of variable speed WECS is now witness. However, the power quality still remains an important issue to be addressed thoroughly by researchers. This paper presents a comparative study on grid connected WECS having two different Wind Turbine Generator Systems (WTGS) using DFIG and PMSG.

scholarly journals Analisa Aliran Angin Pada Sudu Turbin Angin Savonius Tipe-U Berbasis Software

2018 ◽  
Vol 4 (2) ◽  
pp. 93
Author(s):  
Delffika - Canra ◽  
Meri Rahmi ◽  
Emin Haris
Keyword(s):  
Renewable Energy ◽  
Aspect Ratio ◽  
Wind Energy ◽  
Wind Turbine ◽  
Electrical Energy ◽  
Simulation Method ◽  
Renewable Energy Resources ◽  
Wind Speeds ◽  
Low Wind Speeds ◽  
Turbine Construction

Generally, wind energy sources in Indonesia's coastal areas is one of the potential sources of renewable energy (renewable energy resources) which are abundant, environmentally friendly and renewable. Savonius wind turbines can produce relatively high torque even at low wind speeds. Because it is very well developed to produce electrical energy. To get a large electric power, a large turbine construction is also needed which also certainly requires a large cost. For this reason, it is necessary to develop the dimensions of this wind turbine construction which is known as aspect ratio (Ar). The Ar that has been researched is the blade section, and other values. While the arch depth or the length of the blade arc in U -type is still likely to be researched. Therefore, it is necessary to do research on the U-type blade arc to get greater power than before. In addition to the experimental method with a prototype of the U type Savonius wind turbine with a number of 2 blades, a software-based simulation method will be carried out to analyze the air flow on the wind turbine blade. Parameters varied only with the aspect ratio of the arc length and blade cross section width, other parameters follow the previous research. This analysis will be a comparative data with experimental methods. The expected simulation results obtain the best aspect ratio (Ar) blade in capturing wind energy.

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