scholarly journals An assessment of the energy generation potential of photovoltaic systems in Cameroon using satellite-derived solar radiation datasets

2014 ◽  
Vol 7 ◽  
pp. 257-264 ◽  
Author(s):  
L.M. Ayompe ◽  
A. Duffy
Keyword(s):  
Solar Radiation ◽  
Energy Generation ◽  
Photovoltaic Systems

scholarly journals Demand in abdon calderon parish for possible installation of photovoltaic systems

2018 ◽  
Vol 2 (3) ◽  
pp. 62-69
Author(s):  
Katherine Lisbeth Carreno Suarez ◽  
Andrade Garcia Jean Carlos ◽  
Luis Adrian Saltos Cuenca ◽  
Jorge Alexander Gonzalez Zambranod ◽  
Ángel Andrés Arteaga Ponce
Keyword(s):  
Environmental Impact ◽  
Solar Radiation ◽  
Energy Generation ◽  
Social Impacts ◽  
Observational Research ◽  
Photovoltaic Systems ◽  
The Future ◽  
Geographical Position ◽  
Lighting Systems

Photovoltaic systems installed in Ecuador benefit from the geographical position of the country, since, being located on the equatorial line, solar radiation is constant throughout the year, varying in the rainy seasons. The objective of this work is to evaluate the possibility of installing public lighting systems using photovoltaic systems in the Abdón Calderón parish due to the difficulties that exist today, thereby helping not only to reduce the country's energy generation problems, but also to reduce the environmental impact and provide autonomy to the inhabitants of the parish. An observational research was carried out, in addition to interviewing the residents of the parish related to lighting in the streets, as a result, it was obtained that in the future investments can be made to introduce the technology, improving with it the quality of public lighting, the environmental and social impacts associated with it.

Intelligent predictive model of electrical power in photovoltaic systems through solar radiation and temperature on site

2021 ◽  
Author(s):  
Luis Omar Lara Cerecedo ◽  
Nun Pitalua-Diaz ◽  
Jesus Fernando Hinojosa Palafox ◽  
Juan Anzurez Marin ◽  
Salvador Ramirez Zavala
Keyword(s):  
Solar Radiation ◽  
Predictive Model ◽  
Electrical Power ◽  
Photovoltaic Systems

Determination of Mars Solar-Belt by Modeling of Solar Radiation Using Artificial Neural Networks

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
Tamer Khatib ◽  
Irjuwan Abunajeeb ◽  
Zainab Heneni
Keyword(s):  
Solar Radiation ◽  
Back Propagation ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
The Sun ◽  
Water Ice ◽  
Available Energy ◽  
Feed Forward Back Propagation ◽  
Solar Radiation Intensity ◽  
Artificial Neural

Missions to Mars need a power source, while, one of the most compatible sources for such a purpose is the photovoltaic system. Photovoltaic systems generate power based on the available energy from the Sun, and thus, solar radiation intensity at Mars should be known for design purposes. In this research, the feed-forward back-propagation artificial neural network is developed to predict solar radiation in terms of longitude, latitude, time of the day, temperature, altitude, pressure, amount of dust, and volume mixing ratio of water ice clouds. Data which are used to develop this model are obtained from the Mars Climate Database. The results of the developed method are accurate as compared with other methods whereas the correlation (R2) coefficient for the developed model is 0.97. The developed model then is used to predict mean solar radiation and mean temperature for every location on Mars and then the data are presented on Mars maps in order to determine the best location for harvesting energy from the Sun by photovoltaic systems. According to results, the solar radiation-temperature belt on Mars is found to be between latitudes 20 deg south and 15 deg north.

scholarly journals Exciton-Exciton Annihilation as a Mechanism for Uphill Transfer in a Molecular Excitonic System

2019 ◽  
Vol 205 ◽  
pp. 06017
Author(s):  
Craig N. Lincoln ◽  
Matthias Block ◽  
Bastian Baudisch ◽  
Pavel Malevich ◽  
Hans von Berlepsch ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Time Resolution ◽  
Transient Absorption ◽  
Spatial Dimension ◽  
Organic Photovoltaic ◽  
Cyanine Dye ◽  
Photovoltaic Systems ◽  
Exciton Dynamics ◽  
Diffusion Rates ◽  
Exciton Annihilation

Exciton dynamics in a HJ-aggregate of cyanine dye TTBC are investigated by transient absorption with a time resolution of <60 fs and power-dependent emission spectroscopies. Both measurements are consistent with an exciton delocalization length of ~28 monomers. A model assuming diffusive exciton motion reveals that the exciton mobility is at least bimodal and restricted to one spatial dimension. J-band diffusion rates of 2.69 and 2.79e-3 cm2s-1 are found, leading to maximal diffusion lengths of 449 and 14.5 nm. The findings indicate that exciton-exciton annihilation is the origin of effective uphill transfer. This mechanism, if present under solar radiation, maybe useful for organic photovoltaic systems.

Future Scope of Solar Energy in India

2016 ◽  
Vol 8 (01) ◽  
pp. 20-25 ◽  
Author(s):  
Bharat Raj Singh ◽  
Onkar Singh
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Rural Areas ◽  
Solar Power ◽  
Geographical Location ◽  
Energy Generation ◽  
Green Energy ◽  
Tropical Country ◽  
Lighting Systems ◽  
Almost All

Generation of solar energy has tremendous scope in India. The geographical location of the country stands to its benefit for generating solar energy. The reason being India is a tropical country and it receives solar radiation almost throughout the year, which amounts to 3,000 hours of sunshine. This is equal to more than 5,000 trillion kWh. Almost, all parts of India receive 4-7 kWh of solar radiation per sq metres. This is equivalent to 2,300–3,200 sunshine hours per year. States like Andhra Pradesh, Bihar, Gujarat, Haryana, Madhya Pradesh, Maharashtra, Orissa, Punjab, Rajasthan, and West Bengal have great potential for tapping solar energy due to their location. Since majority of the population live in rural areas, there is much scope for solar energy being promoted in these areas. Use of solar energy can reduce the use of firewood and dung cakes by rural household. Many large projects have been proposed in India, some of them are: i).Thar Desert of India has best solar power projects, estimated to generate 700 to 2,100 GW, ii). The Jawaharlal Nehru National Solar Mission (JNNSM) launched by the Centre is targeting 20,000 MW of solar energy power by 2022, iii).Gujarat’s pioneering solar power policy aims at 1,000 MW of solar energy generation, and Rs. 130 billion solar power plan was unveiled in July 2009, which projected to produce 20 GW of solar power by 2020. Apart from above, about 66 MW is installed for various applications in the rural area, amounting to be used in solar lanterns, street lighting systems and solar water pumps, etc. Thus, India has massive plan for Solar Energy generation that may not only fulfill the deficit of power generation but also contribute largely in Green Energy Production to help to reduce the Climatic Changes globally.

Simulation of Energy Production in Grid-Connected Photovoltaic Systems From Measured and Calculated Data From Clear-Sky Radiation Model

2015 ◽  
Vol 137 (3) ◽  
Author(s):  
Carlos Henrique Rossa ◽  
João Batista Dias ◽  
Mário Henrique Macagnan
Keyword(s):  
Solar Radiation ◽  
Energy Production ◽  
Calculated Data ◽  
Photovoltaic Systems ◽  
Porto Alegre ◽  
Radiation Model ◽  
Current Configuration ◽  
Clear Sky ◽  
Radiation Data ◽  
Wet Climate

This paper presents a comparison of the energy production in grid-connected photovoltaic systems (GCPPS) from measured and calculated radiation data. The Linke turbidity (TL) factor for the region of Porto Alegre, Brazil, was extracted considering the data of direct solar radiation from the typical meteorological year (TMY). The average annual turbidity value obtained of 4.03 agrees with the wet climate of the region which presents only 17.26% of clear-sky days. There was a difference of 27.5% in the results of the produced energy, which drops to 6.5% when compared with only sunny days in the region, suggesting that the model in the current configuration for this type of estimate is barely adequate.

Theoretical Performance Analysis of Solar Chimney Power Plant for Kota Region of Rajasthan, India

2015 ◽  
Vol 787 ◽  
pp. 157-161 ◽  
Author(s):  
Zainab Akhtar ◽  
K.V.S. Rao
Keyword(s):  
Power Plant ◽  
Solar Radiation ◽  
Power Output ◽  
Average Power ◽  
Energy Generation ◽  
Solar Chimney ◽  
Minute Interval ◽  
Average Power Output ◽  
Solar Chimney Power Plant ◽  
Theoretical Performance

A solar chimney power plant (SCPP) sometimes also called 'solar updraft tower' is a part of the solar thermal group of indirect solar conversion technologies, utilizing a combination of solar air collector and central updraft tube or chimney to generate a solar induced convective flow which drives pressure staged turbines to generate electricity. In this paper the performance of a solar chimney power plant (SCPP) is evaluated if established in the Kota region of Rajasthan in India. Kota has high intensity of solar radiation with more than 270 sunny days in a year. To investigate the theoretical performance evaluation of the solar chimney power plant in Kota region, total energy generation and average power output for every ten minute interval has been calculated on the basis of solar radiation and temperature data provided by Centre for wind energy Technology (C-WET) available for the period from June 2011-May 2012 for every ten minute interval. Subsequently day wise and month wise calculations have been performed for energy generation and power output for the year June 2011 - May 2012. Further, annual average power output of SCPP is calculated at Kota for different sets of dimensions of SCPP and assuming different values of collector efficiency. Power produced at the plant established in Kota region is compared with power output estimated by J. Schlaich by their experience gained from prototype of SCPP in Manzanares, Spain. Land area required for solar chimney power plant if installed in Kota region of Rajasthan India is calculated for 200 MW capacity plant.

scholarly journals Study of Solar Radiation in View of Photovoltaic Systems Optimization

2011 ◽  
Vol 02 (04) ◽  
pp. 367-374 ◽  
Author(s):  
Rachid Chenni ◽  
Ernest Matagne ◽  
Messaouda Khennane
Keyword(s):  
Solar Radiation ◽  
Photovoltaic Systems
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