scholarly journals Effect of Temperature on the Performance of Photovoltaic Module

2020 ◽  
Vol 5 (9) ◽  
pp. 670-676
Author(s):  
Muhammad Sani ◽  
Abdulmumin Sule
Keyword(s):  
Solar Radiation ◽  
Power Output ◽  
Cooling System ◽  
Photovoltaic System ◽  
Energy Output ◽  
Effect Of Temperature ◽  
Photovoltaic Module ◽  
Solar Panels ◽  
Free Standing ◽  
The Difference

Metrological parameters plays significant role on the performance of solar panels in electrical power generation. To ascertain the extent to which ambient temperature, temperature of the panels, solar radiation were measured, recorded and analyzed at half-hour interval for five days, at the same period two solar panels were subjected to test, one being connected to a system of cooling leaving the other untouched. Measurement of both the output current and voltage were made from which the power output was calculated. The result shows that the power output was increasing as the solar radiation increased, which is clear indication that the entire photovoltaic process depend on the radiation intensity and environmental conditions. It was also observed that the efficiency of the solar panel with cooling system is slightly greater than that without cooling system. The efficiency and energy output of both solar panels were determined to be 15%, 13% and 477kWh, 449kWh respectively. The difference of 28kWh is not supposed to be neglected, because considering the difference of many days and many panels cannot be neglected. Also few approaches that have been proposed to reduce the effect of temperature on the solar photovoltaic system by choosing the appropriate configurations, by mounted on free standing frames, photovoltaic thermal collectors and building integrated photovoltaic arrays, respectively

scholarly journals Fabrication and performance analysis of concentrated hybrid photovoltaic system

2018 ◽  
Vol 144 ◽  
pp. 04023
Author(s):  
Krishna Murthy ◽  
Ajay Daniel ◽  
Lanvin Concessao ◽  
Habbie Alex Roy ◽  
A. Ganesha
Keyword(s):  
Solar Radiation ◽  
Waste Heat ◽  
Cooling System ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Performance Study ◽  
Drastic Increase ◽  
Concentrated Solar Radiation ◽  
And Performance ◽  
Set Up

Sun is the most important source of renewable source of energy. During the past few decades there has been an ever-increasing interest in Photovoltaic (PV) cells as it directly converts solar radiation into electricity. This paper involves the performance study of photovoltaic system under concentrated solar radiation. The main problem with the concentration solar energy is the drastic increase in temperature of the photovoltaic module resulting in a decrease in performance efficiency of the system. This problem of overheating of the system can be overcome by providing cooling which would ensure operation of the module in the optimal temperature range. Hence, the setup would function as a hybrid model serving the dual purpose of power generation while also utilizing the waste heat for water heating applications. The experimental set up consist of a novel arrangement of concentrator and reflector and the cooling system. The Hybrid Photovoltaic System was repeatedly tested under real time conditions on several days. A comparison was drawn between the results obtained from direct exposure of a standard photovoltaic module to that obtained from the hybrid system in order to better understand the improvement in performance parameters. The study shown a significant improvement of output of standard photovoltaic module under the concentrated solar radiation.

scholarly journals Solar panel performance analysis under indonesian tropic climate using sandia PV array performance model and five parameter performance model

2018 ◽  
Vol 67 ◽  
pp. 02048
Author(s):  
Subhan Petrana ◽  
Eko Adhi Setiawan ◽  
Adi Januardi
Keyword(s):  
Solar Radiation ◽  
Performance Model ◽  
Solar Panel ◽  
Effect Of Temperature ◽  
Solar Panels ◽  
Pv Array ◽  
Evaluation And Monitoring ◽  
Array Performance ◽  
The Tropics ◽  
Performance Calculation

Evaluation and monitoring of solar panel are need to be done, primarily related to how much energy is produced. Energy production by a solar panel is affected by the characteristics of climate or weather of a particular location such as solar radiation and ambient temperature. This study aimed to compare two models of solar panel performance calculation, i.e., Sandia PV Array Model and Five Parameter Model by considering the tropical climate of Indonesia and see the effect of temperature and solar radiation changes on the results of the calculations of both methods through the I-V curve. The types of solar panels on monitored are a monocrystalline, polycrystalline, and thin film. The results show that the energy produced by Sandia PV Array Performance Model for the three types of solar panels are 54.36 Wdc, 51.57 Wdc, and 39.62 Wdc, respectively. Five Parameter Performance Model results are 56.58 Wdc, 52.7 Wdc, and 43.29, respectively. These results show that with a small amount of data, the Five Parameter Model is more optimal and efficient for the tropics compared to Sandia PV Array Model.

scholarly journals Analysis and study of the potential increase in energy output generated by prototype solar tracking, roof mounted solar panels

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1381
Author(s):  
Jacek Harazin ◽  
Andrzej Wróbel
Keyword(s):  
Solar Energy ◽  
Energy Output ◽  
The Sun ◽  
Solar Panels ◽  
Free Standing ◽  
Potential Increase ◽  
Solar Tracking ◽  
Solar Tracker ◽  
Analysis And Study

Roof mounted solar panels come in form of fixed panels, unable to adjust to sun’s position during day and throughout the year. As an effect, the efficiency of such solution is usually dependent on the roof slope and position of the building in relation to sun’s day arc during seasons. These problems can be bypassed in free standing solar installations by equipping solar panels with solar tracker installations. Thanks to solar tracking, solar panels can be dynamically positioned perpendicular to the sun position and gather energy more efficiently throughout the day. This article presents a possibility of creating a roof mounted solar tracking panel to increase its efficiency. A prototype of solar tracking panel with two axes of movement was designed with an intention of an easy adaptation to being mounted on sloped surfaces of building roofs. A reference stationary panel was used to compare the efficiency of both solutions. A 5-day study was carried out to determine if the proposed solution could provide any benefits. Based on the study, the authors made an attempt to draw a conclusion whether the design could considerably increase the solar energy output to be worth the extra spending associated with solar tracker installation.

Design and Analysis of a Hybrid Solar and Vibration Energy Harvester

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
M Shafiqur Rahman ◽  
Uttam K. Chakravarty
Keyword(s):  
Solar Radiation ◽  
Cantilever Beam ◽  
Power Output ◽  
Energy Harvester ◽  
High Efficiency ◽  
Photovoltaic System ◽  
Small Scale ◽  
Power Calculation ◽  
Hybrid Energy ◽  
Harvesting Technique

AbstractThe performance of the small-scale stand-alone energy harvesters can be improved by implementing a hybrid energy harvesting technique. This paper aims at presenting the design and characterization of a hybrid energy harvester that can simultaneously harvest energy from mechanical vibration and solar radiation by combining piezoelectric, electromagnetic, electrostatic, and photovoltaic mechanisms. The hybrid device consists of a small high-efficiency solar panel and a bimorph PZT cantilever beam having a cylindrical tip magnet and two sets of capacitors (comb electrodes) attached on two sides of an ASTM 6061 T-6 Aluminum substrate. All the transducing sections of the configuration are interconnected by a smart hybrid electric circuit having a common optimum load resistance, an energy storage, and a microcontroller to generate and store combined power output when subjected to transverse vibration and solar radiation. The initial bias-voltage input required for the electrostatic mechanism is either obtained from the photovoltaic system or taken from the storage through the microcontroller. Results for the maximum power output are obtained at the fundamental resonance frequency of the vibrating cantilever beam. As the hybrid design allows a combined power harvesting method, more power is generated with better conversion efficiency than those obtained by stand-alone mechanisms. In addition to the power calculation, the study includes a stress and fatigue analysis of the cantilever beam using the finite element method to investigate the stress-life criteria of the hybrid structure.

scholarly journals Evaluation of a hybrid system to improve the electrical efficiency in photovoltaic panels

2018 ◽  
Vol 61 ◽  
pp. 00013
Author(s):  
Juan C Valencia ◽  
Mauricio Diaz ◽  
Carlos Giraldo
Keyword(s):  
Hybrid System ◽  
Cooling System ◽  
Average Power ◽  
Photovoltaic System ◽  
Total Power ◽  
Solar Panels ◽  
Electrical Efficiency ◽  
Solar Tracker ◽  
Valle Del Cauca ◽  
Electric Loads

This project shows a photovoltaic hybrid system (PHS) that follows the sun using electronic and mechanic devices and reduces the solar panel’s temperature with water in order to increase the energy obtained. The system was designed and implemented with a 1-axis solar tracker system and a water cooling system. PHS allows solar radiation beams to fall almost perpendicularly and decreases the temperature of the solar panel. Finally, its performance is compared against a traditional fixed photovoltaic system (FPS) oriented at 15° facing south. Experiments were made during only seven days in a year between December 1st and December 19th of 2017 in Guadalajara de Buga, Valle del Cauca, Colombia. Tests consisted of using the same electric loads at 20%, 40% and so on until 100% of the total power capacity of the solar panels. Results points out that electrical efficiency of the PHS increased 5.03% compared to the FPS on the same environmental conditions. Finally, PHS shows daily additional average power between 37% and 40% when it is loaded with electric loads at 80% and 100%.

Maximizing Average Power Output of an Airborne Wind Energy Generator Under Parametric Uncertainties

2015 ◽  
Author(s):  
Michelle A. Kehs ◽  
Chris Vermillion ◽  
Hosam K. Fathy
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Power Output ◽  
Average Power ◽  
Extremum Seeking ◽  
Energy Output ◽  
Wind Speeds ◽  
Average Power Output ◽  
The Difference ◽  
Optimal Average

This paper presents a controller for maximizing the time-averaged power output from an airborne wind energy generator in uncertain wind conditions. This system’s optimal energy output often involves flying in periodic figure-8 trajectories, but the precise optimal figure-8 shape is sensitive to environmental conditions, including wind speed. The literature presents controllers that are able to adapt to uncertainties, and this work expands on the current literature by using an extremum seeking based method. Extremum seeking is particularly well-suited for this application because of its well understood stability properties. In this work, extremum seeking is used to search through a family of optimal trajectories (computed offline) that correspond to discrete wind speeds. The controller is efficient in that it only searches for the optimum trajectory over the uncertain parameter (in this paper, wind speed). Results show that the controller converges to the optimal trajectory, provided it is initialized to a stable figure-8. The speed of convergence is dependent on the difference between the initial average power output and the optimal average power output.

scholarly journals Performance of 20w Solar Photovoltaic Module for Energy and Exergy Analysis

2021 ◽  
Vol 7 (05) ◽  
pp. 102-106
Author(s):  
Rajendra. G, Sai Ranjith Reddy.K and Ganesh Kumar. I.R S. Yoga Sainath Reddy, Jagannath Reddy
Keyword(s):  
Exergy Analysis ◽  
Short Circuit ◽  
Photovoltaic System ◽  
Energy Output ◽  
Photovoltaic Module ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Solar Module ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis

The solar photovoltaic system generates both thermal energy and electrical energy by utilizing solar energy. In this paper an experimental attempt has made for calculating energy output as well as exergy output of solar PV panel installed at R.L.J.I.T. Bangalore. Energy and exergy analysis was performed by using first and second law of thermodynamics to evaluate energy and exergy. The framework involved in this process are ambient temperature, overall heat transfer, open-circuit voltage, short-circuit current, fill factor, solar radiations etc. It is predicted that temperature of pv solar module has most effect on the efficiencies. By the help of water or air the heat can be removed to improve both energy and exergy efficiencies.

scholarly journals The Effect of Temperature and Humidity Against Lead (Pb) Concentration in the Air of Pontianak City

2014 ◽  
Vol 1 (1) ◽  
pp. 16-25
Author(s):  
Winardi
Keyword(s):  
Solar Radiation ◽  
Motor Vehicle ◽  
Weather Conditions ◽  
Effect Of Temperature ◽  
Traffic Density ◽  
Vehicle Exhaust ◽  
Temperature And Humidity ◽  
Density Factor ◽  
The Difference ◽  
Pb Concentration

The existence of Lead (Pb) pollutants in the air that generated by motor vehicle exhaust emissions determined by how large the influence of temperature and humidity tend to change according to time and weather influences. Temperature and humidity Changes in the earth's surface due to solar radiation in the morning-afternoon-evening will give change in the concentration of Pb in the air. With the days variation will be seen the influence of weather that gives the difference in temperature and humidity of each day so that the concentration of Pb in air pollutants, will be varied. This research looked at the extent to which the effect of environmental factors influence, like the temperature and humidity of the Pb concentration in the air. Sampling carried out based on the variation of the morning, afternoon and evening and Sunday till Monday variation. Temperature, humidity and weather conditions were measured and observed directly in the field, while Pb concentrations were analyzed in the laboratory. The results obtained were compared with each other. The results showed that the highest concentration of Pb in the morning, because in the morning the temperature more lower at the Earth's surface and humidity tends to be high which causes pollutants become hard to diluted and difficult to dispersed vertically upwards.Until the Earth's surface temperature rises, along with the increasing of solar radiation which causes the air temperature rises and air expands so as pollutants become diluted. On rainy days where the temperature drops and the humidity rises, the Pb concentrations tend to be higher. The results that obtained also show that the traffic density factor can not be ignored and can affect the the concentration of Pb in the air.  

scholarly journals Decision Technique of Solar Radiation Prediction Applying Recurrent Neural Network for Short-Term Ahead Power Output of Photovoltaic System

2013 ◽  
Vol 04 (06) ◽  
pp. 32-38 ◽  
Author(s):  
Atsushi Yona ◽  
Tomonobu Senjyu ◽  
Toshihisa Funabashi ◽  
Paras Mandal ◽  
Chul-Hwan Kim
Keyword(s):  
Neural Network ◽  
Solar Radiation ◽  
Recurrent Neural Network ◽  
Power Output ◽  
Photovoltaic System ◽  
Short Term

scholarly journals Thermal building upgrade with off-grid PV system: a Polish case

2021 ◽  
Vol 14 (7) ◽  
Author(s):  
Sylwia Wciślik ◽  
Dagmara Kotrys-Działak
Keyword(s):  
Solar Radiation ◽  
Alternative Energy ◽  
Net Present Value ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Total Solar Radiation ◽  
Pv System ◽  
Alternative Energy Sources ◽  
High Investment ◽  
The Difference

AbstractNowadays, one of the basic requirements for thermally upgraded buildings involves limitation in CO2 emission even by over 90%. To fulfil these criteria, it is necessary to use alternative energy sources and photovoltaics constitutes a reasonable option for this. This paper addresses an analysis of the efficiency and profitability of a photovoltaic system located in the geometric center of Europe-Poland, where the intensity of solar irradiation is not very high compared to other European countries. The difference of total solar radiation density between Poland and Malta is 49.2%, from analysis based on SolarGIS base. The PV Lighthouse calculator was used for global power density and photon current examination for a Polish city and locations of the highest and the lowest solar radiation values, Malta and Finland, respectively. This case study concerns a thermally upgraded building; a gas boiler was replaced by a heat pump supported by an off-grid PV system. To achieve a reduction in CO2 emission of 90%, it is necessary to install 182 PV cells, which generates high investment costs. An investment is entirely profitable with 70% of funding with Simple Pay Back Time, SPBT~7 years although Net Present Value, NPV>0; Internal Rate of Return, IRR=10.6%.

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