Electrical and thermal model for PV module temperature evaluation

2008 ◽  
Author(s):  
G.M. Tina ◽  
S. Scrofani
Keyword(s):  
Thermal Model ◽  
Pv Module

scholarly journals Computational Simulation and Analysis of Major Control Parameters of Time-Dependent PV/T Collectors

2019 ◽  
Author(s):  
Jimeng Shi ◽  
Cheng-Xian Lin
Keyword(s):  
Solar Cell ◽  
Thermal Model ◽  
Computational Simulation ◽  
Back Surface ◽  
Control Parameters ◽  
Pv Module ◽  
Crystalline Solar Cell ◽  
Relationship Of ◽  
The Relationship ◽  
T System

Abstract In order to improve performance of photovoltaic/thermal (or PV/T for simplicity) collectors, this paper firstly validated a previous computational thermal model and then introduced an improved computational thermal model to investigate the effects of the major control parameters on the thermal performance of PV/T collectors, including solar cell temperature, back surface temperature, and outlet water temperature. Besides, a computational electrical model of PV/T system was also introduced to elaborate the relationship of voltage, current and power of a PV module (MSX60 poly-crystalline solar cell) used in an experiment in the literature. Simulation results agree with the experimental data very well. The effects of the time-steps from 1 hour to minute, which is closed to the real time, were also reported. At last, several suggestions to improve the efficiency of PV/T system were illustrated.

Research on Thermoelectric Coupling Characteristics of PV Modules

2013 ◽  
Vol 448-453 ◽  
pp. 1559-1564
Author(s):  
Yu Zhang ◽  
Jian Bo Bai ◽  
Sheng Liu
Keyword(s):  
Power Generation ◽  
Thermal Model ◽  
Coupling Model ◽  
Electrical Model ◽  
Reasonable Accuracy ◽  
Pv Module ◽  
Pv Modules ◽  
Simulation Results ◽  
Coupling Characteristics ◽  
Experimental Values

The paper presents the thermoelectric coupling model for a photovoltaic (PV) module. Firstly, the five-parameter electrical model and the thermal model of the PV module are investigated. In order to evaluate the effectiveness of the model, the numerical computation and experimental values under certain environmental conditions are compared. The experimental results demonstrate the model has reasonable accuracy. Furthermore, to investigate the PV modules performance under different ambient temperature, irradiance and wind speed, the model is used to simulate the thermoelectric characteristics of the PV module. The simulation results can provide meaningful method to predict power generation of the PV module under various conditions.

scholarly journals Numerical Analysis of a Real Photovoltaic Module with Various Parameters

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Costica Nituca ◽  
Gabriel Chiriac ◽  
Dumitru Cuciureanu ◽  
Guoqiang Zhang ◽  
Dong Han ◽  
...  
Keyword(s):  
Thermal Model ◽  
Power Estimation ◽  
Solar Irradiation ◽  
Photovoltaic Module ◽  
Temperature Influence ◽  
The Finite Element Method ◽  
Modeling And Simulations ◽  
Pv Module ◽  
Pv Cell ◽  
Optimal Values

This article presents a real photovoltaic module with modeling and simulations starting from the model of a photovoltaic (PV) cell. I-V, P-V, and P-I characteristics are simulated for different solar irradiation, temperatures, series resistances, and parallel resistances. For a real photovoltaic module (ALTIUS Module AFP-235W) there are estimated series and parallel resistances for which the energetical performances of the module have optimal values for a solar radiation of 1000 W/m2 and a temperature of the environment of 25°C. Temperature influence over the PV module performances is analyzed by using a thermal model of the ALTIUS Module AFP-235W using the finite element method. A temperature variation on the surface of the PV module is starting from a low value 40.15°C to a high value of 52.07°C. Current and power estimation are within the errors from 1.55% to about 4.3%. Experimental data are measured for the photovoltaic ALTIUS Module AFP-235W for an entire daylight.

scholarly journals A thermal model for open-rack mounted photovoltaic modules based on empirical correlations for natural and forced convection

2019 ◽  
Vol 23 (6 Part A) ◽  
pp. 3551-3566
Author(s):  
Bojan Perovic ◽  
Dardan Klimenta ◽  
Miroljub Jevtic ◽  
Milos Milovanovic
Keyword(s):  
Forced Convection ◽  
Wind Direction ◽  
Thermal Model ◽  
Energy Balance Equation ◽  
Ambient Conditions ◽  
Empirical Correlations ◽  
Pv Module ◽  
Steady State Operation ◽  
Pv Modules ◽  
Module Type

This paper proposes a thermal model for calculating the temperature of open-rack mounted photovoltaic (PV) modules taking into account the meteorological conditions, position (i. e. the inclination of one PV module and the angle between its surface and wind direction) and technical characteristics of the PV modules. The present model is valid for the steady-state operation and is based on the energy balance equation in which the forced convection is modelled by the new empirical correlations. The possibility of occurrence of the flow separation along the surfaces of the PV modules is included in these correlations. The effect of the angle between the wind direction and the PV module plane, which is usually ignored in the modelling of forced convection, is also taken into consideration. In this manner, it is possible to estimate the temperature of PV modules more precisely, as well as to determine the power and efficiency which depend on the temperature. For four particular PV modules, it is found that the temperatures, obtained using the proposed thermal model, are in good agreement with the corresponding measured temperatures. Compared with the other models commonly used for thermal analysis of PV modules (SNL and NOCT-based correlations), this model yielded better results. The deviation of the PV module temperature calculated using the proposed thermal model from the measured one is up to 2?C, and the deviations of the PV module temperatures calculated using the SNL and NOCT-based correlations from the measured ones amount up to 5?C and 20?C, respectively, depending on the PV module type and ambient conditions.

A Coupled Electrical and Thermal Model for Photovoltaic Modules

2010 ◽  
Vol 132 (2) ◽  
Author(s):  
G. Tina
Keyword(s):  
Thermal Model ◽  
Input Data ◽  
Environmental Parameters ◽  
Thermal System ◽  
Simulation Tool ◽  
System Operation ◽  
Photovoltaic Modules ◽  
Pv Module ◽  
Total Irradiance ◽  
The Impact

A coupled electrical and thermal model for calculating the temperature of a photovoltaic (PV) module has been developed and implemented in a simulation tool. The input data for this model include both environmental parameters (ambient temperature, wind speed, wind direction, total irradiance, and relative humidity) and electrical variables (voltage and current). In particular, this paper discusses the impact of the electrical operating point on the PV module temperature. This information can be very useful, especially in optimizing hybrid PV/thermal system operation. Numerical and experimental results are presented.

THERMAL MODEL FOR THE DESORPTION OF (MOLECULAR) IONS INDUCED BY MeV HEAVY IONS

1989 ◽  
Vol 50 (C2) ◽  
pp. C2-237-C2-243 ◽  
Author(s):  
H. VOIT ◽  
E. NIESCHLER ◽  
B. NEES ◽  
R. SCHMIDT ◽  
CH. SCHOPPMANN ◽  
...  
Keyword(s):  
Heavy Ions ◽  
Thermal Model ◽  
Molecular Ions

Parametric Study of Photovoltaic Thermal Solar Collector Using An Improved Parallel Flow

2020 ◽  
Vol 2 (1) ◽  
pp. 19-24
Author(s):  
Sakhr Mohammed Sultan ◽  
Chih Ping Tso ◽  
Ervina Efzan Mohd Noor ◽  
Fadhel Mustafa Ibrahim ◽  
Saqaff Ahmed Alkaff
Keyword(s):  
Thermal Conductivity ◽  
Energy Balance ◽  
Parametric Study ◽  
Solar Collector ◽  
Parallel Flow ◽  
Operating Conditions ◽  
Balance Equations ◽  
Conductivity Type ◽  
Pv Module ◽  
Sunny Weather

Photovoltaic Thermal Solar Collector (PVT) is a hybrid technology used to produce electricity and heat simultaneously. Current enhancements in PVT are to increase the electrical and thermal efficiencies. Many PVT factors such as type of absorber, thermal conductivity, type of PV module and operating conditions are important parameters that can control the PVT performance. In this paper, an analytical model, using energy balance equations, is studied for PVT with an improved parallel flow absorber. The performance is calculated for a typical sunny weather in Malaysia. It was found that the maximum electrical and thermal efficiencies are 12.9 % and 62.6 %, respectively. The maximum outlet water temperature is 59 oC.

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