scholarly journals A Transportable Solar Power Generator

2017 ◽  
Vol 3 (2) ◽  
pp. 6
Author(s):  
Azzeddine Ferrah ◽  
Fatima Yaqoob ◽  
Mariam Ismaeil ◽  
Dana Khalil ◽  
Amal Abdelrahman ◽  
...  
Keyword(s):  
Solar Energy ◽  
Solar Irradiance ◽  
Engineering Students ◽  
Solar Power ◽  
Geographic Location ◽  
Photovoltaic System ◽  
Project Work ◽  
Energy Output ◽  
Rural Villages ◽  
Pv Generator

Abstract—This paper presents the design of a 2kW portable photovoltaic (PV) stand-alone facility (PV generator) that converts directly solar irradiance into electricity for immediate use or storage. The project aims to build a stand-alone solar power source for use in rural villages, mountainous and remote areas that are distant from the national grid. It can also be very useful for powering camping tents, fishing boats, small farms, and greenhouses. Equally, it could be used for disaster stricken areas and during power outages. However, the proposed generator will be more suited for camping trips that Emiratis take almost in weekly basis. The paper will focus on presenting the main features of the designed prototype. It will also investigate the performance of the proposed stand-alone PV generator. Parameters investigated include geographic location, climate condition, solar irradiance, load consumption, ambient temperature, array voltage, battery voltage, and energy output from the array. The work presented is based entirely on the work carried out by final year electrical engineering students, during their capstone design project. The project work, presented, is a manifestation of the students learning during earlier semesters. It puts into practice the application of solar energy technology, that the student learned in his course on renewable energy systems.  Index Terms—Solar energy,transportable solar system,stand-alone system,PV,photovoltaic system.

scholarly journals A Versatile Solar and Electric Water Distiller

2017 ◽  
Vol 2 (2) ◽  
pp. 18
Author(s):  
Azzeddine Ferrah ◽  
Marwa Samer ◽  
Farah Mohamed ◽  
Maitha Abdulla ◽  
Muna Obaid ◽  
...  
Keyword(s):  
Solar Energy ◽  
Engineering Students ◽  
Electric Energy ◽  
Hard Water ◽  
Project Work ◽  
Small Unit ◽  
Rural Villages ◽  
Rivers And Lakes ◽  
Index Terms ◽  
Transfer Principles

Abstract— The present paper discusses the feasibility and the features of a newly designed portable water desalinator/distiller. The goal is to design a small unit for desalinating or distilling brackish or soiled water. The proposed desalinator/distiller is a hybrid system that uses two sources of energy, namely: solar and electrical. It relies on solar energy when being used at locations where electricity is expensive or inaccessible. On the other hand, it uses electric energy when sunshine is unavailable for considerable periods of time, such as under rainy or cloudy skies, or during winter seasons when the sun radiation is weak or not enough to evaporate water.    This innovative project is aimed to benefit communities in rural villages, long journey travelers in deserts and arid mountains, people living alongside polluted rivers and lakes, and people living in refugees’ camps.  It can also benefit people with hard water supplies.   The paper investigates and discusses the proposed hybrid desalinator/distiller (HDD). The work presented is based entirely on the work carried out by final year electrical engineering students, during their capstone design project. The project work, presented, is a manifestation of the students learning during previous semesters. It puts into practice the application of thermal and heat transfer principles, that the student learned in earlier courses.   Index Terms—Desalination,desalinator,distiller,solar still,solar energy.

scholarly journals An Empiric-Stochastic Approach, Based on Normalization Parameters, to Simulate Solar Irradiance

2019 ◽  
Vol 141 (6) ◽  
Author(s):  
Edith Osorio de la Rosa ◽  
Guillermo Becerra Nuñez ◽  
Alfredo Omar Palafox Roca ◽  
René Ledesma-Alonso
Keyword(s):  
Experimental Data ◽  
Solar Irradiance ◽  
Solar Power ◽  
Moving Average ◽  
Estimation Method ◽  
Synthetic Data ◽  
Stochastic Approach ◽  
Photovoltaic System ◽  
Fitting Procedure ◽  
Irradiance Data

This paper presents a methodology to estimate solar irradiance using an empiric-stochastic approach, which is based on the computation of normalization parameters from the solar irradiance data. For this study, the solar irradiance data were collected in a weather station during a year. Posttreatment included a trimmed moving average to smooth the data, the performance of a fitting procedure using a simple model to recover normalization parameters, and the estimation of a probability density, which evolves along the daytime, by means of a kernel density estimation method. The normalization parameters correspond to characteristic physical variables that allow us to decouple the short- and long-term behaviors of solar irradiance and to describe their average trends with simple equations. The normalization parameters and the probability densities allowed us to build an empiric-stochastic methodology that generates an estimate of the solar irradiance. Finally, in order to validate our method, we had run simulations of solar irradiance and afterward computed the theoretical generation of solar power, which in turn had been compared with the experimental data retrieved from a commercial photovoltaic system. Since the simulation results show a good agreement with the experimental data, this simple methodology can generate the synthetic data of solar power production and may help to design and test a photovoltaic system before installation.

Sun Intensity and Angle on Efficiency of Solar Cell System

2014 ◽  
Vol 627 ◽  
pp. 182-186
Author(s):  
Bo Wun Huang ◽  
Jung Ge Tseng ◽  
Der Ren Hsiao
Keyword(s):  
Solar Cell ◽  
Solar Energy ◽  
Photovoltaic Effect ◽  
Renewable Resource ◽  
Cell System ◽  
Photovoltaic System ◽  
Output Energy ◽  
Energy Output ◽  
Solar Module ◽  
Available Energy

Sun intensity and angle on efficiency of solar cell System is considered to study. Solar energy is a clean, non-polluting and renewable resource; it uses the photovoltaic effect to convert sunlight into a free and available energy source. However, solar energy output is highly affected by the temperature and intensity of sunlight. As the temperature of the solar module rises, energy output will decrease, if the intensity of sunlight is stronger, there will be more output energy. With adequate heat sink and proper ventilation, a module’s temperature will be decreased, and also increase output energy. This study uses 10 kilowatt grid-connected photovoltaic system and a solar tracker to measure the direction of the sun, to find out the relationship between solar intensity and angle effects on energy output.

scholarly journals Vectorial Command of Induction Motor Pumping System Supplied by a Photovoltaic Generator

2011 ◽  
Vol 62 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Messaoud Makhlouf ◽  
Feyrouz Messai ◽  
Hocine Benalla
Keyword(s):  
Solar Energy ◽  
Induction Motor ◽  
Search Algorithm ◽  
Asynchronous Motor ◽  
Photovoltaic System ◽  
Pv System ◽  
Pumping System ◽  
Power Point ◽  
The Cost ◽  
Pv Generator

Vectorial Command of Induction Motor Pumping System Supplied by a Photovoltaic GeneratorWith the continuous decrease of the cost of solar cells, there is an increasing interest and needs in photovoltaic (PV) system applications following standard of living improvements. Water pumping system powered by solar-cell generators are one of the most important applications. The fluctuation of solar energy on one hand, and the necessity to optimise available solar energy on the other, it is useful to develop new efficient and flexible modes to control motors that entrain the pump. A vectorial control of an asynchronous motor fed by a photovoltaic system is proposed. This paper investigates a photovoltaic-electro mechanic chain, composed of a PV generator, DC-AC converter, a vector controlled induction motor and centrifugal pump. The PV generator is forced to operate at its maximum power point by using an appropriate search algorithm integrated in the vector control. The optimization is realized without need to adding a DC-DC converter to the chain. The motor supply is also ensured in all insolation conditions. Simulation results show the effectiveness and feasibility of such an approach.

scholarly journals Análisis del Potencial Energético Solar Basado en Mediciones in Situ en el Municipio de Acacías - Meta

2018 ◽  
Vol 3 (1) ◽  
pp. 690
Author(s):  
Angel Alejandro Rodriguez Aya ◽  
John Alejandro Figueredo Luna ◽  
Juan Alejandro Chica García
Keyword(s):  
Solar Energy ◽  
Solar Power ◽  
Cost Benefit ◽  
Energy Systems ◽  
Energy System ◽  
Photovoltaic System ◽  
Cost Benefit Ratio ◽  
The Cost ◽  
The University

This research presents the preliminary results of the research entitled Design and implementation of a fixed and mobile photovoltaic system to capture the solar power, determining the cost-benefit ratio for the Acacías CEAD, a study that will determine the solar power that affects the University National Open and Distance - UNAD of the municipality of Acacías and deliver a study to determine the solar radiation of the area, in order to verify the potentiality and feasibility of installing solar energy systems in the University and nearby areas; It has been possible to determine that solar power in the area per m² is close to 45% of that measured by IDEAM (Hydrology, Meteorology and Environmental Studies Institute in Colombia), with a potential absorption of 331W per day in an area of 1m², which makes feasible a possible implementation of a solar energy system. Keywords: Solar power, solar energy, solar panel, energy efficiency.

scholarly journals IMPLEMENTACIÓN DE UN SISTEMA FOTOVOLTÁICO EN EL DISTRITO DE SAN BORJA, PARA APROVECHAR LA ENERGÍA SOLAR DURANTE LOS MESES DE VERANO

2016 ◽  
Vol 26 (1) ◽  
pp. 115
Author(s):  
Harry A. Rivera Tito ◽  
María E. Quintana Caceda ◽  
Vanessa Teixeira Roth
Keyword(s):  
Carbon Dioxide ◽  
Solar Energy ◽  
Electric Power ◽  
Solar Power ◽  
Electrical Power ◽  
Photovoltaic System ◽  
Pv System ◽  
Carbon Dioxide Co2 ◽  
Coast Region

RESUMENEn este trabajo exponemos un método para abastecer de energía eléctrica a un grupo de personas que habitan en el distrito de San Borja – Lima, a través de un Sistema Fotovoltaico (SFV), lo cual no es común en la zona. Esto ayudará a disminuir los niveles de emisión de dióxido de carbono (CO2) a la atmósfera. Se ha determinado mediante el Atlas Solar del Perú que la potencia solar en la región de la costa alcanza al día un promedio, en el mes de marzo, de 6 a 6,5 kW.h/m2, si convertimos este dato a energía, es equivalente de 21,6 a 23,4 MJ/m2, lo cual es provechoso para el proyecto.Palabras clave- Energía solar, irradiancia, sistema fotovoltaico y energía eléctrica. ABSTRACTThrough this work we explain a method to provide electrical power to a group of people living in the district of San Borja - Lima, through a PV system, which is not common in the area. This would help to reduce emission levels of carbon dioxide (CO2) to the atmosphere. It has been determined by the Solar Atlas of Peru that the coast region solar power reaches 6 to 6,5 kW.h/m2 per day, average in the month of March, if we convert this data to energy is equivalent to 21,6 to 23,4 MJ/m2, which is of great advantage for the proyect.KeyWords.- Solar energy, irradiance, photovoltaic system and electric power.

scholarly journals Efficiency of maximum power point tracking in photovoltaic system under variable solar irradiance

2014 ◽  
Vol 62 (4) ◽  
pp. 713-721 ◽  
Author(s):  
W. Marańda ◽  
M. Piotrowicz
Keyword(s):  
Solar Energy ◽  
Solar Irradiance ◽  
Tracking Algorithm ◽  
Maximum Power ◽  
Field Conditions ◽  
Energy Output ◽  
Maximum Power Point ◽  
Pv Systems ◽  
Wide Range ◽  
Power Point

Abstract Field conditions decrease the energy output of photovoltaic (PV) systems, mainly due to excessive temperatures. However, in regions with moderate ambient temperatures, as in Poland, solar energy is commonly delivered with highly fluctuating irradiance. This introduces yet another source of energy losses due to the non-ideal tracking of actual position of Maximum Power Point (MPP). Majority of PV-systems are equipped with DC/AC and grid-connected inverter. Since the solar energy flux is variable, an adequate MPP-tracking algorithm is required to handle a wide range of load levels and face rapid changes of input power. Along with the essential DC/AC conversion, the quality of MPP-tracking must also be taken into account in evaluation of inverter efficiency. The tracking in dynamic conditions has been addressed only recently. Several algorithms has been studied theoretically, experimentally or in laboratory conditions by applying artificial input test-patterns. This work takes the opposite approach by applying the recorded real-life solar irradiance and simulating the tracking behavior to study the problem for true field conditions in Poland. The simulation uses the unique high-quality irradiance data collected with 200 ms time resolution. The calculation of both static and dynamic MPP-tracking efficiency has been performed for representative variable-cloudy day, applying commonly used Perturb&Observe tracking algorithm.

Design and Construction of A Domestic Solar Power Bank in a Convective Environment

2018 ◽  
Vol 11 (1) ◽  
pp. 16-28 ◽  
Author(s):  
M. E. Emetere ◽  
O.I. Osunlola ◽  
A.D. Adejumo ◽  
A.O. Dauda
Keyword(s):  
Rural Communities ◽  
Solar Energy ◽  
Solar Irradiance ◽  
Solar Power ◽  
Small Scale ◽  
Thermo Electric ◽  
Domestic Use ◽  
Weather Parameters ◽  
Local Materials ◽  
Very High

Objective:This research seeks to solve the problem of storing solar energy in small scale modules for domestic use.Method:The Solar Power Bank (SPB) was constructed with local materials based on their individual properties. The functionality of the SPB was tested in a convective environment. Davis automatic Weather Station (DWS) was used to get the weather parameters (like solar irradiance, solar energy and temperature) for each day the SPB was tested. The maximum solar irradiance for four days (during the experiment) were 220 W/m2, 208 W/m2, 450 W/m2and 900 W/m2. The maximum solar energy was 0.33 J, 03 J, 0.64 J and 1.33 J.Result:The maximum voltage and power obtained from the Solar Power Bank (SPB) was 0.18V and 0.065W respectively. The design showed tremendous heat energy entrapment during solar irradiance peak as the temperature in the SPB was about three times the DWS.Conclusion:It was specifically noted that the convection of the heat transfer that is triggered by the glass shield determines the functionality of the thermo-electric module. This is a clear indication that though the power output may be low to charge the batteries, the prospects of the SPB to operate in convective-rural communities (in tropic region) is very high.

scholarly journals Revisiting Renewable Energy Map in Indonesia: Seasonal Hydro and Solar Energy Potential for Rural Off-Grid Electrification (Provincial Level)

2018 ◽  
Vol 164 ◽  
pp. 01040 ◽  
Author(s):  
Ruri Agung Wahyuono ◽  
Miga Magenika Julian
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Global Climate ◽  
Energy System ◽  
Photovoltaic System ◽  
Hydropower Plant ◽  
Energy Output ◽  
Climate Data ◽  
Energy Potential ◽  
Potential Map

Regarding the acceleration of renewable energy diffusion in Indonesia as well as achieving the national energy mix target, renewable energy map is essential to provide useful information to build renewable energy system. This work aims at updating the renewable energy potential map, i.e. hydro and solar energy potential, with a revised model based on the global climate data. The renewable energy map is intended to assist the design off-grid system by hydropower plant or photovoltaic system, particularly for rural electrification. Specifically, the hydro energy map enables the stakeholders to determine the suitable on-site hydro energy technology (from pico-hydro, micro-hydro, mini-hydro to large hydropower plant). Meanwhile, the solar energy map depicts not only seasonal solar energy potential but also estimated energy output from photovoltaic system.

scholarly journals Solar Irradiance Forecast Based on Cloud Movement Prediction

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3775
Author(s):  
Aleksander Radovan ◽  
Viktor Šunde ◽  
Danijel Kučak ◽  
Željko Ban
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Solar Irradiance ◽  
Energy Production ◽  
Storage System ◽  
Prediction Method ◽  
System Optimization ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Cloud Detection

Solar energy production based on a photovoltaic system is closely related to solar irradiance. Therefore, the planning of production is based on the prediction of solar irradiance. The optimal use of different energy storage systems requires an accurate prediction of solar irradiation with at least an hourly time horizon. In this work, a solar irradiance prediction method is developed based on the prediction of solar shading by clouds. The method is based on determining the current cloud position and estimating the velocity from a sequence of multiple images taken with a 180-degree wide-angle camera with a resolution of 5 s. The cloud positions for the next hour interval are calculated from the estimated current cloud position and velocity. Based on the cloud position, the percentage of solar overshadowing by clouds is determined, i.e., the solar overshadowing curve for the next hour interval is calculated. The solar irradiance is determined by normalizing the percentage of the solar unshadowing curve to the mean value of the irradiance predicted by the hydrometeorological institute for that hourly interval. Image processing for cloud detection and localization is performed using a computer vision library and the Java programming language. The algorithm developed in this work leads to improved accuracy and resolution of irradiance prediction for the next hour interval. The predicted irradiance curve can be used as a predicted reference for solar energy production in energy storage system optimization.

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