Effect of Power Characteristics on Solar Panels: Hands-On Projects for Clean Energy Systems Class

Author(s):  
Birce Dikici ◽  
Javier Jalandoni

In this paper, experiments that can be introduced to Clean Energy Systems classes are described. The experiments investigate the effect of power characteristics (temperature, shade and tilt angle) on solar panel electricity production. Solar cell efficiency is the ratio of the electrical output of a solar cell to the incident energy in the form of sunlight. The energy conversion efficiency of a solar cell is the percentage of the solar energy to which the cell is exposed that is converted into electrical energy. Extreme temperatures can cause a decrease in solar panel’s power output and airstream can dissipate the heat and bring the solar panel to its normal operating condition. Solar panel efficiency is undesirably affected by heat and improved with introducing cooler medium. As well as heat, solar panel loses its power when a part of it is shaded by trees or surrounding buildings. Before solar panel systems are designed for homes, usually a detailed shading analysis of the roof is conducted to reveal its patterns of shade and sunlight throughout the year. By the same manner, how solar panels react to the direct and indirect rays from the sun in order to produce electricity is examined through experiments. Voltage, current and power flowing into a resistor are measured when the angle of the solar panel relative to the light source is changed. The tilt angles to the electrical measurements are linked to the differences in electrical generation. Students can perform experimental procedures explained here and gain the conceptual understanding of the Solar Energy better. The investigations require student explanation of the question, method, display of data with the critical response from peers.

2021 ◽  
Vol 11 (4) ◽  
pp. 4456-4464
Author(s):  
S.V.G.V.A. Prasad

In recent years the use of solar energy is found to have grown by a large amount. Solar energy is renewable energy and the demand for it as clean energy shows its growth by nearly 50 percent in the past decade. It is estimated that the sun is able to generate energy within 24 hours that the entire population of the world could consume in 27 years. Solar power is the energy from the sun that is converted into thermal or electrical energy. The energy harnessed from the sun's rays is used for a variety of applications like electricity generation, to provide light for the interior environment, and many other domestic, commercial, and industrial purposes. Usage of fossil fuels for electricity production results in increased pollution and this mandates many governments to encourage moving to electricity generation using solar power. The large amount of solar energy that is available is found to be the most appealing source of electricity. Solar panels form a major part of the solar energy setup. Hence in this article let us review the various types of solar panels. This paper also deals with comparing the merits and demerits of the different types of solar panels that are available in the market. A section that presents the efficiency of the different kinds of the solar panel is also present in this paper. The role of temperature coefficient, fire rating, and hail rating in the performance of the solar panel is also addressed in this paper.


2020 ◽  
Vol 5 (2) ◽  
pp. 108-117
Author(s):  
Soni A Kaban ◽  
Muhamad Jafri ◽  
Gusnawati Gusnawati

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


2020 ◽  
Vol 9 (2) ◽  
pp. 141-149
Author(s):  
Abyan Arief Fernandez ◽  
Andrian Rakhmatsyah ◽  
Aulia Arif Wardana

This research aimed to build a solar tracker for a floating solar panel and used long–range (LoRa) communication to harvest energy and monitor its process. With the rising demand for renewable energy in these recent years especially for solar energy, it needs to meet this demand to remain relevant for the upcoming years where it will have an even larger impact as we shift into clean energy. Monitoring single–axis solar trackers on rural areas difficult and cost–intensive. The purpose of a floating solar farm is to reduce the cost from buying/renting land. Floating solar panels cannot be monitored using wired because they are moving nodes in the water, it makes wired installation complicated. Hence, using wireless sensornetwork is a solution that allowsremote monitoring of floating solar panels in rural areas and makes moving nodes mentioned above possible. Testing wasperformed by sending 100 packets from the node to its gateway using LoRa modulation, and the gateway successfully received about 90% of the packets sent by the node. The vertical single-axis solar tracker used in floating solar managed to get 17% more energy than the fixed solar with a more stable income for the whole duration of sending 100 packets.©2020. CBIORE-IJRED. All rights reserved


SINERGI ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 73 ◽  
Author(s):  
Hamzah Eteruddin ◽  
Atmam Atmam ◽  
David Setiawan ◽  
Yanuar Z. Arief

People can make solar energy alternative energy by employing solar panels to generate electricity. The utilization of solar energy on a solar panel to generate electricity is affected by the weather and the duration of the radiation, and they will affect the solar panel’s temperature. There are various types of solar panels that can be found on the market today, including Mono-Crystalline and Poly-Crystalline. The difference in the material used needs to be observed in terms of temperature changes in the solar module. Our study’s findings showed that a change in the temperature would impact the solar panel’s output voltage, and the solar panel’s output voltage would change when it was connected to the load although the measured temperatures were almost the same.


2019 ◽  
Vol 2 (2) ◽  
pp. 61-65
Author(s):  
Yusra Defawati

The aim is to motivate students in learning the photoelectric effect, the method used in this study is inquiry learning with the result that students can more easily understand the working principle of solar cells / solar panels so that learning is more edible and students understand it more easily. For students learning with this solar panel kit can add knowledge horizons and apply them, and give birth to new innovations. For teachers to be able to create a fun and meaningful learning atmosphere by further increasing creativity and innovation in learning. Schools as a means for teachers and students to interact can support and support, so that the learning process produces output that is valuable and characterized, and creative. Keywords: Solar cell / solar panel kit, learning media, microscopy, NPN transitor


Author(s):  
Farzaneh Ghasemzadeh ◽  
Mostafa Esmaeili Shayan

Nanotechnology can help to address the existing efficiency hurdles and greatly increase the generation and storage of solar energy. A variety of physical processes have been established at the nanoscale that can improve the processing and transmission of solar energy. The application of nanotechnology in solar cells has opened the path to the development of a new generation of high-performance products. When competition for clean energy options is growing, a variety of potential approaches have been discussed in order to expand the prospects. New principles have been explored in the area of solar cell generation, multi-generation, spectrum modulation, thermo-photoelectric cells, hot carrier, the middle band, and many other techniques. Nanoparticles and nanostructures have been shown to enhance the absorption of light, increase the conversion of light to energy, and have improved thermal storage and transport.


2009 ◽  
Vol 62-64 ◽  
pp. 533-536 ◽  
Author(s):  
E.U. Ubeku ◽  
S.O. Igbinovia

In this paper a motorized solar energy collector system-a driver system that positioned the solar cell panel differently during day-time was design and implemented. The aim is to optimize the amount of solar energy that can be trapped from the sun using a solar cell panel. This is achieved by using a stepper motor, controlled by Atmel AT89C52 microcontroller, to align the panel such that all incident rays strike normal to the panel’s surface thereby maximizing the amount of solar energy that can be trapped from the sun. The alignment is time dependant. This model was implemented and tested and the results proved to be successful in maximizing the energy received from the sun than if the solar panel was fixed at a particular position.


Author(s):  
Budiyanto Budiyanto ◽  
Hery Setiawan

Permasalahan utama dari solar cell adalah perbedaan jenis solar cell yang mengakibatkan perbedaan kinerja pada solar cell tersebut. Besarnya daya keluaran yang dihasilkan relatif tidak konstan karena dipengaruhi oleh besarnya intensitas matahari  serta  suhu  lingkungan  di  sekitarnya.  Untuk mengatasi masalah tersebut maka tugas akhir ini dirancang untuk melakukan perbandingan panel surya monocrystalline jenis vertikal dan jenis fleksibel.Pada hasil pengujian dengan pencahayaan matahari panel surya fleksibel menghasilkan efisiensi lebih tinggi dibanding dengan panel surya vertikal, yaitu 20,8774%, sedangkan panel surya vertikal meghasilkan efisiensi sebesar 19,2844%. Dalam penggunaan simulasi pencahayaan lampu panel surya vertikal menghasilkan efisiensi yang cukup tinggi dan lebih tinggi dibanding panel surya fleksibel, yaitu 20,4818% sedangkan panel surya fleksibel menghasilkan efisiensi sebesar 16,4044%. Pada panel surya fleksibel dengan bentuk cembung 25° menghasilkan efisiensi sebesar 15,3200. Pada bentuk cekung 25° menghasilkan efisiensi 15,6265%.The main problem with solar cells is the different types of solar cells that result in differences in the performance of the solar cell. The amount of output power produced is relatively not constant because it is influenced by the intensity of the sun and the temperature of the surrounding environment. To overcome this problem, this final project is designed to compare the vertical and flexible monocrystalline solar panels. In the test results with solar lighting, flexible solar panels produce higher efficiency than vertical solar panels, which is 20.8774%, while vertical solar panels resulted in an efficiency of 19.2844%. In the use of simulated lighting, vertical solar panel lights produce high and higher efficiency than flexible solar panels, namely 20.4818%, while flexible solar panels produce an efficiency of 16.4044%. In a flexible solar panel with a convex shape of 25° it produces an efficiency of 15.3200. In the concave shape of 25° it produces an efficiency of 15.6265%.


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