scholarly journals ANÁLISE DOS PARÂMETROS PARA GERAÇÃO DE ENERGIA SOLAR FOTOVOLTAICA NO ACRE, BRASIL

2021 ◽  
Vol 7 (20) ◽  
pp. 202129
Author(s):  
Vivyane Alencar Marques Araújo do Nascimento ◽  
Taynara Bastos Trindade ◽  
Clarice Maia Carvalho
Keyword(s):  
Solar Energy ◽  
Electrical Energy ◽  
Energy Generation ◽  
Photovoltaic Cell ◽  
Solar Irradiation ◽  
Solar Panels ◽  
Cell Temperature ◽  
Photovoltaic Efficiency ◽  
Photovoltaic Solar Energy ◽  
Insolation Maximum

ANALYSIS OF PARAMETERS FOR PHOTOVOLTAIC SOLAR ENERGY GENERATION IN ACRE, BRAZILANÁLISIS DE PARÁMETROS PARA LA GENERACIÓN DE ENERGÍA SOLAR FOTOVOLTAICA EN ACRE, BRASILRESUMOEnergia solar é obtida através de placas solares fotovoltaicas com a função de captar a energia do sol e transformar em energia elétrica, aumentando a geração de energia solar nas regiões com maior captação de energia luminosa. Assim, neste artigo analisou-se os parâmetros para geração de energia solar fotovoltaica no Acre, Brasil. Coletou-se dados referentes a insolação, temperaturas máximas e mínimas, precipitação e umidade relativa no Instituto Nacional de Meteorologia, irradiação solar, no Centro de Referências para Energias Solar e Eólica Sérgio de S. Brito, regionais do Vale do Juruá e Vale do Acre, no período de 2015-2020. As análises foram quantitativas, utilizando o cálculo da média e cálculo do plano inclinado. Na comparação das regionais, o Vale do Acre apresentou melhores resultados para geração de energia solar e com um ângulo com a maior média diária anual de irradiação solar, considerando-se projetar-se células fotovoltaicas na regional. O trabalho apresenta que o Acre possui bastante insolação e irradiação solar, indicando alto potencial de geração de energia solar para as regionais do estado.Palavras-chave: Eficiência Fotovoltaica; Radiação Solar; Temperatura da Célula Fotovoltaica; Irradiação.ABSTRACTSolar energy is obtained through photovoltaic solar panels with the function of capturing the sun's energy and transforming it into electrical energy, increasing the generation of solar energy in regions with greater capture of light energy. Thus, the parameters for the generation of photovoltaic solar energy in Acre, Brazil were analyzed. Data on insolation, maximum and minimum temperatures, precipitation and relative humidity were collected at the National Institute of Meteorology, solar irradiation, at the Reference Center for Solar and Wind Energy Sérgio de S. Brito, regions of Vale do Juruá and Vale do Acre, in the period 2015-2020. Analyzes were quantitative, using mean calculation and inclined plane calculation. When comparing the regions, Vale do Acre presented better results for solar energy generation and with an angle with the highest annual daily average of solar irradiation, considering the project of photovoltaic cells in the region. The work shows that Acre has a lot of insolation and solar irradiation, indicating a high potential for generating solar energy for the regional regions of the state.Keywords: Photovoltaic Efficiency; Solar Radiation; Photovoltaic Cell Temperature; Irradiation.RESUMENLa energía solar se obtiene a través de paneles solares fotovoltaicos con la función de captar la energía del sol y transformarla en energía eléctrica, aumentando la generación de energía solar en las regiones con mayor captación de energía luminosa. Así, se analizaron los parámetros para la generación de energía solar fotovoltaica en Acre, Brasil. Los datos sobre insolación, temperaturas máximas y mínimas, precipitación y humedad relativa fueron recolectados en el Instituto Nacional de Meteorología, irradiación solar, en el Centro de Referencia de Energía Solar y Eólica Sérgio de S. Brito, regiones de Vale do Juruá y Vale do Acre, en el período 2015-2020. Los análisis fueron cuantitativos, utilizando cálculo de medias y cálculo de plano inclinado. Al comparar las regiones, Vale do Acre presentó mejores resultados para la generación de energía solar y con un ángulo con el promedio diario anual más alto de irradiación solar, considerando el diseño de células fotovoltaicas en la región. El trabajo muestra que Acre tiene mucha insolación e irradiación solar, lo que indica un alto potencial de generación de energía solar para las regiones regionales del estado.Palabras clave: Eficiencia Fotovoltaica; Radiación Solar; Temperatura de la Celda Fotovoltaica; Irradiación.

scholarly journals Distributed generation of photovoltaic solar energy: impacts of ANEEL`s new regulation proposal on investment attractiveness

2021 ◽  
Vol 14 (2) ◽  
pp. 423-442
Author(s):  
Diego Silva Cardoso ◽  
Pedro Sartori Locatelli ◽  
Wanderley Ramalho ◽  
Nader Asgary
Keyword(s):  
Solar Energy ◽  
Distributed Generation ◽  
Energy Generation ◽  
Legal Framework ◽  
Government Policies ◽  
Solar Irradiation ◽  
Industrial Plant ◽  
The Subject ◽  
Photovoltaic Solar Energy ◽  
Practical Implications

Purpose – The production of photovoltaic solar energy has gained international prominence, being the subject of government policies aimed at its development. The purpose of this study is to analyze the profitability of a shared photovoltaic solar energy project, located in the national territory, resulting from changes in regulatory framework of the sector represented by different tariff levels.Design/methodology/approach – It is a quantitative study based on corporate finance as its theoretical-conceptual substrate. Simulations were carried out using different energy price and tariff scenarios.Findings - The results reveal that, under current conditions, distributed photovoltaic solar energy generation is financially very attractive to investors. In addition, it was found that significant changes in the tariff regime for this type of energy might prevent new investments in the segment. Practical implications – The evidence suggests caution in changing the legal framework of a segment that is still incipient in the country, which generates clean and renewable energy, and with enormous growth potential.Originality/value - The study presents, in a systematic way, the possible impacts of changes in the price and tariff scenarios on the attractiveness of investment in the distributed generation of photovoltaic solar energy generation. In this sense, it can be easily adapted to evaluate industrial plant projects of different sizes in regions with distinct levels of solar irradiation.           

Wind Effects on Power Generation of Solar Farm in California

2019 ◽  
Author(s):  
Ni Li ◽  
Arianna Fatahi ◽  
Dennis Lee ◽  
Jim Y. Kuo ◽  
He Shen
Keyword(s):  
Heat Transfer ◽  
Power Generation ◽  
Solar Radiation ◽  
Solar Energy ◽  
Energy Generation ◽  
Solar Panel ◽  
Solar Irradiation ◽  
Energy Output ◽  
Critical Parameters ◽  
Solar Panels

Abstract In comparison to fossil fuels, solar energy is a more sustainable option due to its high availability and less environmental impact. Improving the efficiency of solar farms has been a primary concern of solar energy research. Many studies focus on the control of the tilt angle of solar modules to maximize their solar radiation reception and energy generation. However, an increase in solar radiation is accompanied by an increase in module temperature, which is known to be a significant parameter that reduces the power generation efficiency. Wind is another influential factor that helps Photovoltaic systems maintain a low operating temperature by enhancing the rate of heat transfer. Therefore, solar radiation and wind behavior are both critical parameters that must be considered to optimize solar panel performance. In this paper, the effect of wind conditions on solar panel performance will be examined. The solar panel energy output model will be built by empirically considering the irradiation, ambient temperature, wind speed, and wind direction. The published weather data and energy output data for the year 2017–2018 have been collected from Antelope Valley Solar Ranch, located in Lancaster, California. Four models have been proposed and the results indicate that the model which incorporates the wind conditions has the highest accuracy in approximating the energy production of solar farms. Among the factors that affect the temperature of solar panels and further the efficiency of solar panels including solar irradiation, convection, conduction, wind plays a major role in convective heat transfer. Based on this model, the potential improvement of energy generation via introducing a horizontal installation angle and adjusting this angle monthly according to the wind conditions is further analyzed. These results will help designers improve the design of solar farms by taking into consideration the local weather conditions.

scholarly journals The Simultaneous Impacts of Seasonal Weather and Solar Conditions on PV Panels Electrical Characteristics

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 845
Author(s):  
Mahsa Z. Farahmand ◽  
M. E. Nazari ◽  
S. Shamlou ◽  
Miadreza Shafie-khah
Keyword(s):  
Solar Energy ◽  
Air Temperature ◽  
Electrical Energy ◽  
Radiation Absorption ◽  
Solar Panels ◽  
Photovoltaic Panel ◽  
Photovoltaic Efficiency ◽  
Day By Day ◽  
Seasonal Weather

Solar energy usage is thriving day by day. These solar panels are installed to absorb solar energy and produce electrical energy. As a result, the efficiency of solar panels depends on different environmental factors, namely, air temperature, dust (aerosols and accumulated dust), and solar incidence, and photovoltaic panel angles. The effects of real conditions factors on power and efficiency of photovoltaic panels are studied in this paper through testing the panel in real environmental tests. To study the mentioned parameters precisely, two panels with different angles are used. The case study is regarding a region of Tehran, Iran, in summer and winter seasons. The results show that panel efficiency during winter is higher than summer due to air temperature decrement. It is discovered that among air pollutants, Al and Fe have the most share in polluting the air that affect the photovoltaic efficiency. Moreover, measuring the accumulated dust on the panels shows more amount in winter in comparison with summer. The important point in studying the effect of tilt angle is that inconformity between solar incidence and photovoltaic panel angles would result in solar radiation absorption and eventually panel efficiency loss and also, photovoltaic panel installation angle would affect the amount of dust deposited on its surface.

scholarly journals Improved Thermal Transfer Efficiency for Planar Solar Thermophotovoltaic Devices

2013 ◽  
Author(s):  
David M. Bierman ◽  
Andrej Lenert ◽  
Evelyn N. Wang
Keyword(s):  
Solar Energy ◽  
Solar Spectrum ◽  
Electrical Energy ◽  
Photovoltaic Cell ◽  
Area Ratio ◽  
Transfer Efficiency ◽  
System Level ◽  
Surface Geometry ◽  
Thermal Transfer ◽  
Absorber Surface

Solar thermophotovoltaic (STPV) devices provide conversion of solar energy to electrical energy through the use of an intermediate absorber/emitter module, which converts the broad solar spectrum to a tailored spectrum that is emitted towards a photovoltaic cell [1]. While the use of an absorber/emitter device could potentially overcome the Shockley-Queisser limit of photovoltaic conversion [2], it also increases the number of heat loss mechanisms. One of the most prohibitive aspects of STPV conversion is the thermal transfer efficiency, which is a measure of how well solar energy is delivered to the emitter. Although reported thermophotovoltaic efficiencies (thermal to electric) have exceeded 10% [3], [4], previously measured STPV conversion efficiencies are below 1% [5], [6], [7]. In this work, we present the design and characterization of a nanostructured absorber for use in a planar STPV device with a high emitter-to-absorber area ratio. We used a process for spatially-selective growth of vertically aligned multi-walled carbon nanotube (MWCNT) forests on highly reflective, smooth tungsten (W) surfaces. We implemented these MWCNT/W absorbers in a TPV system with a one-dimensional photonic crystal emitter, which was spectrally paired with a low bandgap PV cell. A high fidelity, system-level model of the radiative transfer in the device was experimentally validated and used to optimize the absorber surface geometry. For an operating temperature of approximately 1200 K, we experimentally demonstrated a 100% increase in overall STPV efficiency using a 4 to 1 emitter-to-absorber area ratio (relative to a 1 to 1 area ratio), due to improved thermal transfer efficiency. By further increasing the solar concentration incident on the absorber surface, increased emitter-to-absorber area ratios will improve both thermal transfer and overall efficiencies for these planar devices.

scholarly journals Electrical system design of solar powered electrical recreational boat for Indonesian waters

2018 ◽  
Vol 67 ◽  
pp. 04011
Author(s):  
Sunaryo Sunaryo ◽  
Adri Wirawan Ramadhani
Keyword(s):  
Solar Energy ◽  
Fossil Fuel ◽  
Electrical Power ◽  
Electrical Energy ◽  
Green Energy ◽  
Solar Panels ◽  
Electrical System ◽  
Literature Study ◽  
The Government ◽  
Solar Powered

Indonesia has more than 17,000 islands and has plenty of beautiful beaches and underwater spots which have great potential for maritime tourism. Tourism was ranked 3rd on Indonesia's foreign income and plays an important role for the country’s ecomony. Despite having potential advantages, the government has not yet maximized its efforts to develop the attractiveness of its maritime tourism. Beside the beautiful spots Indonesia is also blessed with all year long sun shine, which could be tapped as renewable and green energy as substitution to fossil fuel. Refer to these great advantages of natural resources the research was aimed to support the government’s program in developing its maritime tourism and to promote the use of green and renewable energy by designing a solar-powered tourism recreational boat which has 12 meters of length. The paper is focused on the design of solar energy and its electrical system, which includes conversion of solar energy to electrical energy and store it in the battery, the required electrical power is also predicted based on the appliances and equipment installed in the boat, the optimum attachment of solar panels on the boat structure is also calculated. All the methods and information we use are obtained from literature study, discussion with experts, and surveys to Jagur as solar-powered electric boat from Universitas Indonesia.

Parabolic Solar Collector Coverage Made of High-Performance Concrete with Addition of Active Rice Husk Silica Integrated to a Biomass Thermoelectric Unit

2014 ◽  
Vol 634 ◽  
pp. 72-82
Author(s):  
Rosa Ana Conte ◽  
Daltro Garcia Pinatti ◽  
Luiz Fernando M. Marton ◽  
Sebastião Ribeiro ◽  
Thaís Witt Acosta ◽  
...  
Keyword(s):  
Solar Energy ◽  
Rice Husk ◽  
Solar Collector ◽  
High Performance ◽  
High Performance Concrete ◽  
Electrical Energy ◽  
Energy Generation ◽  
Boiler Water ◽  
Rice Husk Silica ◽  
Short Rotation

Production of active rice husk silica (ARHS) in bubbling fluidized bed boiler of a thermoelectric unit (TEU) and its addition to high performance concrete (HPC) with a compression resistance of 90 MPa was developed in the last 10 years. A first factory in Brazil was established at Alegrete town, RS, and other factories are under planning. Data of ARHS production, specification and HPC trace are presented. Design of parabolic solar collector coverage (PSCC) for air heating for biomass drying in a special silo of the TEU is presented as well. Cost of HPC/ARHS is 10 times less than steel (USD 200/ton vs. USD 2000/ton, specific mass 2.5 vs. 7.6 g/cm3, respectively). Those characteristics allow simultaneous solution of four ecological problems: large span coverage, rain water collection, daily solar energy collection and storage, and drying of biomass. The integration of those characteristics results in decrease of biomass consumption maintaining the same UTE efficiency. Tracking parabolic solar collector can be avoided between Cancer and Capricorn Tropics, and it is sufficient its eastern-western orientation with inclination to the Equator by the latitude angle. Coverage of the area occupied by TEU is sufficient to dry its biomass consumption. Preheating of boiler water with solar energy is possible decreasing biomass consumption in sunny days; biomass is partially consummed at night and cloudy days. Coupling the above technologies with high pressure steam TEU and fast-growing short-rotation forest gives to the biomass electrical energy generation a competitive economical position with hydraulic, coal, natural gas, and aeolic energy generation.

scholarly journals Analisis Kemampuan Panel Surya Monokristalin 150 Watt pada Arus dan Pengisian yang Dihasilkan

2019 ◽  
Vol 3 (1) ◽  
pp. 29-35
Author(s):  
M Barkah Salim ◽  
Nurlaila Rajabiah
Keyword(s):  
Data Collection ◽  
Solar Energy ◽  
Research Method ◽  
Electrical Energy ◽  
The Sun ◽  
Solar Panels ◽  
Open Area ◽  
A Priority ◽  
The Many

The sun is a source of energy that cannot be used up. Therefore, the utilization of solar energy must be a priority. With the many types of solar panels that have been developed, researchers conducted an analysis of 150 watt monocrystalline solar panels. The purpose of this study is to know the amount of current and voltage produced by solar panels in some conditions of the sky, namely cloudy, bright cloudy, and bright. The research method used was the experiment. From the data that has been obtained, it can be found that the energy produced by solar panels during cloudy ranges from 0.6-0.8 amperes, when it is cloudy, 0.9-1.9 amperes, and when bright 2.0-3.2 amperes. The amount of electrical energy that can be produced is 8%. However, if the sunny state can produce twice that Suggestions for readers are if you want to take data to make sure the solar panels are completely exposed to the sun during data collection and in the open area. Much better if the angle is adjusted in the direction of sunlight.

scholarly journals Solar Tracking System Untuk Lampu Taman STMIK AUB Surakarta Berbasis Arduino Uno

2018 ◽  
Vol 24 (2) ◽  
pp. 134
Author(s):  
Robby Rachmatullah ◽  
Dessyana Kardha ◽  
Dani Triwiyanto
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Tracking System ◽  
Electrical Energy ◽  
Energy Sources ◽  
Solar Panels ◽  
Turn On ◽  
Solar Tracking ◽  
Arduino Uno ◽  
To Receive

The transfer of electrical energy sources from non-renewable fossil fuels to alternative renewable fuels can be made by utilizing solar energy. The working system of arduino uno solar tracking system for STMIK AUB garden lights is by capturing solar energy through solar panels which are then stored inside the battery where the charging process is controlled by solar charge controller. LDR functions to receive and identify the radiated light quantities which are then forwarded into the arduino uno and processed to drive the DC motor that has become one with the solar panel. If the day begins to darken the LDR will inform the arduino uno and then it will be processed by arduino uno to turn on the DC light.

scholarly journals OPTIMALISASI PENERIMAAN INTENSITAS CAHAYA MATAHARI PADA PERMUKAAN PANEL SURYA (SOLAR CELL) MENGGUNAKAN CERMIN

2020 ◽  
Vol 5 (2) ◽  
pp. 108-117
Author(s):  
Soni A Kaban ◽  
Muhamad Jafri ◽  
Gusnawati Gusnawati
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Experimental Method ◽  
Electrical Energy ◽  
Solar Panel ◽  
Solar Panels ◽  
Research Material ◽  
Voltage Output ◽  
Flat Mirror ◽  
A Current

Abstrak Energi surya merupakan salah satu energi yang bias dikonversi menjadi energi listrik dengan menggunakan panel surya (photovoltaic solar). Pada penelitian ini, dirancang panel surya dengan cermin datar sebagai reflektor scanning dengan empat buah reflektor pada empat sisi panel surya. Tujuan yang ingin dicapai dalam penelitian ini yaitu untuk mendapatkan keluaran panel surya yang optimal menggunakan cemin sebagai media reflektornya dan mendapatkan konfigurasi penempatan cermin untuk meningkatkan keluaran arus dan tegangan panel surya. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan melakukan percobaan terhadap objek bahan penelitian dengan kemiringan reflektor cermin 30o, 45o, dan 60o. Dengan penambahan reflector cermin pada panel surya menyebabkan peningkatan keluaran panel surya pada pukul 12.00 Wita. Panel tanpa reflektor mengahasilkan Arus 2,1 Ampere, Tegangan 6,52 Volt. Panel reflektor 30o menghasilkan Arus 1,89 Ampere, Tegangan 6,25 Volt, Panel reflektor 45o, Arus 2,33 Ampere, Tegangan 6,15 Volt dan Panel reflektor Arus 3,02 Ampere, dan Tegangan 6,41 Volt.Kata kunci: Energi; fotovoltaik; panel surya; cermin. Abstract Solar energy is one of the energies that can be converted into electrical energy using solar panels (photovoltaic solar). In this study, a solar panel with a flat mirror as a scanning reflector was designed with four reflectors on the four sides of the solar panel. The objectives to be achieved in this study are to obtain optimal solar panel output using the mirror as a reflector medium and obtain a mirror placement configuration to increase the current and voltage output of the solar panels. The method used in this research is an experimental method by conducting experiments on the object of the research material with a mirror reflector tilt of 30o, 45o, and 60o. With the addition of a mirror reflector on the solar panel, it causes an increase in the output of the solar panel at 12.00 GMT+08. The panel without a reflector produces a current of 2.1 Ampere, a voltage of 6.52 volts. The 30o-reflector panel produces a current of 1.89 Amperes, a Voltage of 6.25 Volts, a 450 Reflector Panel, a Current of 2.33 Amperes, a Voltage of 6.15 Volts and a Current 3.02 Amperes of Reflector Panel, and a Voltage of 6.41 Volts. Keywords: Energy; photovoltaic; solar panel; mirror

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