The Temperature Effect on Solar Photovoltaic Module Efficiency (original) (raw)
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Investigation of the Effect Temperature on Photovoltaic (PV) Panel Output Performance
International Journal on Advanced Science, Engineering and Information Technology, 2016
The main limit of PV systems is the low conversion efficiency of PV panels, which is strongly influenced by their operating temperature. Lack of accuracy in consideration through PV panel temperature increases the financial risk of system installation. This present study investigates the effects of operating temperature on monocrystalline PV panel at Perlis, Malaysia. A selected model of PV panel firstly was simulated using PVsyst software in order to evaluate its output performance. Meanwhile, PROVA 200 used to measure and record all electrical data for outdoor experimental during the sunniest day. Besides, the thermal distribution was analysed through PV panel temperatures and thermal imaging. Simulation results implied that the output power of PV panel decreases with increasing of its working temperature followed by the efficiency. The experimental results obviously show that the standard test condition (STC) parameters do not represent the real operating conditions of PV panel for outdoor conditions. Less output power was produced affected by the atmospheric factors such as solar irradiance and ambient temperature. These both factors strongly affected the PV panel temperature distribution. In short, the elevating of PV panel temperature contributed to the negative impact on output performance of the panel.
Energy Procedia, 2013
Solar cell performance decreases with increasing temperature, fundamentally owing to increased internal carrier recombination rates, caused by increased carrier concentrations. The operating temperature plays a key role in the photovoltaic conversion process. Both the electrical efficiency and the power output of a photovoltaic (PV) module depend linearly on the operating temperature. The various correlations proposed in the literature represent simplified working equations which can be apply to PV modules or PV arrays mounted on free-standing frames, PV-Thermal collectors, and building integrated photovoltaic arrays, respectively. The electrical performance is primarily influenced by the material of PV used. Numerous correlations for cell temperature which have appeared in the literature involve basic environmental variables and numerical parameters which are material or system dependent. In this paper, a brief discussion is presented regarding the operating temperature of one-sun commercial grade siliconbased solar cells/modules and its effect upon the electrical performance of photovoltaic installations. Generally, the performance ratio decreases with latitude because of temperature. However, regions with high altitude have higher performance ratios due to low temperature, like, southern Andes, Himalaya region, and Antarctica. PV modules with less sensitivity to temperature are preferable for the high temperature regions and more responsive to temperature will be more effective in the low temperature regions. The geographical distribution of photovoltaic energy potential considering the effect of irradiation and ambient temperature on PV system performance is considered.
Effect of Temperature on the Performance of Photovoltaic Module
Volume 5 - 2020, Issue 9 - September
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 diff...
2020
The performance of panels for PV system design is determined according to the performance values in standard test conditions specified in the panel catalog, without knowing the performance under actual operating conditions. However, the operating performance of the PV panel depends on meteorological characteristics of place where the PV system is installed. Especially, if outside temperature values are above test conditions, the efficiency of the PV panel decreases and generation losses are observed. In this study, performance parameters of photovoltaic panel were calculated for four different PV panel technologies only by using their catalogue values like NOCT temperature, power-temperature coefficient etc. For this purpose, real working conditions were simulated using 3-year climate data for the meteorological conditions of Sanliurfa, Turkey. In the end, PV panel efficiency, electricity generation values and performance ratios were calculated in accordance with the temperature. Ac...
The Effect of Ambient Temperature on the Power Output of 5kW Photovoltaic Solar Power System
Future Technology Press, 2017
This paper presents the influence of ambient temperature on 5kW PV-Model depending on recorded data of Dhahran in Saudi Arabia for five months in 2016 and determines the best ambient temperature for the given period according to the power output of the model for each month. Photovoltaic cells are directly affected by temperature, i.e., the power output of the PV cells is dependent on temperature. Its performance is decreased with increase in temperature. This is due to the increase of the electrical circuit resistance with the temperature increase and hence the power output decreases. The study is done using MATLAB/SIMULINK based on KC200GT modified in order to give 5kW output power instead of 200W. Real Data collected from different seasons at Dhahran and applied on the model. The model efficiency is specified according to its performance during the different seasons. Performance of the model showing low efficiency during winter and summer due to the weak radiation and high temperature respectively. Spring season showing the best performance. According to the performance and the power output of the model during different seasons, the best operating temperature is obtained for each month. This will help in cooling process in order to maintain the solar power system working properly during different seasons of the year.
EFFECT OF TEMPERATURE AND IRRADIANCE ON THE ELECTRICAL PERFORMANCE OF A PV MODULE
Solar cells are the devices, which convert the solar radiation into the electrical energy without effecting the environment . To predict the real behavior of solar cells like changes in maximum power, short circuit current and open circuit voltage by changing the temperature and irradiance can be studied by using the MATLAB (simulation model). In this paper, a single diode MATLAB model is used to study the changes in solar PV module by varying temperature (100C,200C,300C) and by varying the irradiance(400W/m2, 600W/m2, 800W/m2). To study the changes in electrical parameters of a solar PV modules KD330GX-LFB and KD325GX-LFB experimental data sheet are taken and the results are discussed in the conclusion.
TEMPERATURE PERFORMANCE ANALYSIS OF A PHOTOVOLTAIC MODULE
2019
The electrical efficiency of photovoltaic (PV) cell is affected by significant increase of cell operating temperature. The efficiency and temperature performance variation on two mono-crystalline modules with and without an active cooling system have been studied. Experimental investigation performed on both modules at different period of the day, under the same ambient temperature reveals that the module efficiency is affected by substantial changes in cell temperature. The module efficiency increases and decreases as temperature decreases and increases respectively. The minimum and maximum module temperatures recorded are 21°C and 102°C while the minimum and maximum module efficiencies are 15.27% and 9.80% respectively. The efficiency performance of the cooled module was high compared with the uncooled module and this indicates that the reduction in cell temperature due to active cooling process improved the efficiency of the module
The Effect of Temperature on Photovoltaic Cell Efficiency
As a great potential renewable energy source, solar energy is becoming one of the most important energies in the future. Recently, there has been an enormous increase in the understanding of the operational principle of photovoltaic devices, which led to a rapid increase in the power conversion efficiencies of such devices. Solar cells vary under temperature changes; the change in temperature will affect the power, output from the cells. In this paper a relation between efficiency, sun radiation and temperature is proposed and under cloudy climate is simulated and temperature ambient PV module for a desired efficiency can be obtained.
Sun hours is one of the parameters used in Photovoltaic system design in determining whether installation of a solar system would be recommended for a particular region, with a minimum of 5 sun hours per day being a recommended standard. As a result, photovoltaic systems are preferably installed in areas with long sun hours and these invariably have high temperatures. However, studies carried out on the performance of photovoltaic modules have shown a considerable decrease in their power output at temperatures above their optimum operating temperature 25 o C. Most interestingly, research has also shown a decrease in the output power of a photovoltaic module as it cools down after being heated to 58°C indicating that high temperatures may cause premature aging of the module. This research aims to determine whether the temperatures at which University of Namibia (UNAM) Faculty of Engineering and I.T campus’ photovoltaic modules are operated are high enough to reduce the module power output considerably. To achieve this, the average operating temperature of the systems modules for the period of 214 days between 1 March and 30 September 2014 was determined. During the course of the research it was discovered that 79% of the insolation received by the system’s modules daily is received in the time period between 12 pm and 4 pm. In this report, this time period will be referred to as the peak insolation period and because the insolation received directly affects PV power output, particular attention was paid to the effect PV module operating temperatures have on the system power output during this period. The PV system was modeled to a 98.7% mean accuracy using Matlab Simulink and run at optimum operating temperature, daily average operating temperature and peak insolation period operating temperature, for a range of insolation values. The simulation results show a 0.31% decrease in system power output per Kelvin increase in temperature and performance ratios of 0.97 and 0.94 when the simulation is run at daily average temperature and average peak insolation period temperature respectively. Finally, using the T test at the 95% confidence level, the power outputs obtained when the simulation was run at average operating temperature and average peak insolation temperature were tested to see if they are statistically different from the power outputs obtained when it is run at optimum operating temperature. The results of the T test showed that the power outputs obtained at both the average operating temperature and the average peak insolation operating temperature are statistically different from the power output at optimum operating temperature indicating that the temperature significant decreases the PV system power output.
Effect of High Temperature on the Efficiency of Grid-Connected PV System
2020
This paper describes a method of modeling and simulation photovoltaic (PV) module that implemented in MATLAB. Each solar cell technology comes with unique temperature coefficients. These temperature coefficients are important and the temperature of the solar cell has a direct influence on the output power of a solar PV module and inverter. Once the temperature of a solar module increases, the output power of the solar module and inverter will decrease. Crystalline solar cells are the main cell technology and usually come with a temperature coefficient of the maximum output power of about -0.5% / degree Celsius. The rated power as generally indicated on the module’s label is measured at 25 degrees Celsius, and with any temperature increase above 25°C you have to take into account power losses of 1% for every 2°C increase. Most installed solar modules in sunny countries especially reach higher temperatures than 25°C. In fact, temperatures of 40°C and above are easily reached. Solar ce...