scholarly journals Investigation of Solar Cell Factors using Fuzzy Set Technique

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Mohammed S. Rasheed
Keyword(s):  
Solar Cell ◽  
Fuzzy Set ◽  
Silicon Solar Cell ◽  
Physical Parameters ◽  
Physical Factors ◽  
Comparison Results ◽  
Good Agreement

<p>Fuzzy set technique has been used to demonstrate the physical factors of a silicon solar cell. The physical parameters of a solar cell are calculated experimentally in outdoor measurement and the obtained values are compared with those obtained theoretically. The comparison results showed a good agreement using these two methods.</p>

scholarly journals Measuring the Solar Cell Parameters Using Fuzzy Set Technique

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Mohammed S. Rasheed ◽  
Mohammed Abdelhadi Sarhan
Keyword(s):  
Solar Cell ◽  
Fuzzy Set ◽  
Silicon Solar Cell ◽  
Simulation Method ◽  
Photovoltaic Cell ◽  
Comparison Method ◽  
Physical Parameters ◽  
Simple Method ◽  
Cell Parameters ◽  
Method Show

<p>This work studies the application of fuzzy set (FS) and fuzzy logic (FC) methods to determine the optimal operating point of solar cell. The physical parameters of the solar cell have been measured practically using silicon solar cell. The important parameters of the silicon cell are compared with each other using fuzzy set comparison method (FSCM) based on (I-V) characteristic curves of the voltage of photovoltaic cell and the maximum power resulting from the cell; which is a simple method for the measurement. The results of the simulation method show that, the fuzzy set comparison method (FSCM) is better measuring these parameters.</p>

Application de la méthode photonique à la détermination des paramètres physiques d'une cellule solaire monocristalline

2002 ◽  
Vol 80 (7) ◽  
pp. 733-743 ◽  
Author(s):  
M Ben Amar ◽  
A Ben Arab
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Diffusion Length ◽  
Optical Absorption Coefficient ◽  
Physical Parameters ◽  
Base Region ◽  
Technological Parameters ◽  
Base Thickness ◽  
Modulated Light ◽  
Minority Carriers

The photonic's method is used in the study of monocristalline silicon solar cell (N+P). The induced photocurrent in the cell is analyzed with respect to the technological parameters such as the optical absorption coefficient of silicon and the emitter and base thickness. The spatial and frequential variations of the photocurrent of the cell, when the latter is illuminated by a sinusoidal modulated light, allow access to the diffusion length and lifetime of the minority carriers generated in a given region of the cell. In this paper, the physical parameters related to the base region are determined. In addition, this access is shown to be possible only when the total photocurrent of the cell is reduced to the base diffusion photocurrent.

scholarly journals Linear Programming for Solving Solar Cell Parameters

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Mohammed S. Rasheed
Keyword(s):  
Linear Programming ◽  
Solar Cell ◽  
Silicon Solar Cell ◽  
Fill Factor ◽  
Physical Parameters ◽  
Cell Parameters ◽  
Maximum Current ◽  
Current Maximum ◽  
Experimental Values ◽  
Maximum Voltage

<p>In this paper, the major physical parameters of a commercial silicon solar cell such as maximum current, maximum voltage, fill factor, and efficiency have been investigated. The important parameters of a silicon cell are examined using Linear Programming Problem (LPB) and the obtained results are compared with those of experimental values. The experimental results of the solar cell show excellent agreement as compared with those obtained by LPB. </p>

scholarly journals Effect of Silicon Solar Cell Physical Factors on Maximum Conversion Efficiency Theoretically and Experimentally

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Mohammed Abdelhadi Sarhan
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Silicon Solar Cell ◽  
Life Time ◽  
Energy Conversion Efficiency ◽  
Physical Factors ◽  
Density Maximum ◽  
Maximum Current ◽  
Maximum Conversion Efficiency ◽  
Experimental Values

<p>In this paper, ten major physical factors of a commercial silicon solar cell such as maximum current density, maximum voltage, maximum resistance, fill factor, energy conversion efficiency, life time , series and shunt resistances  have been demonstrated. Integer linear programming (ILP) tests these factors of a commercial cell and the obtained results are compared with those of experimental values. The experimental results of the solar cell indicate excellent agreement as compared with those obtained by (ILP). </p>

The study of acoustic scattering from a single sound-permeable sphere

2018 ◽  
Vol 13 (4) ◽  
pp. 79-91 ◽  
Author(s):  
E.Sh. Nasibullaeva
Keyword(s):  
Speed Of Sound ◽  
Numerical Technique ◽  
Acoustic Scattering ◽  
Computer Time ◽  
Physical Parameters ◽  
Fast Method ◽  
Scattering Field ◽  
Permeable Sphere ◽  
Test Verification ◽  
Good Agreement

The paper presents a generalized mathematical model and numerical investigation of the problem of acoustic scattering from a single sound-permeable sphere during the passage of two types of waves - spherical from a monopole radiation source and a plane one. In solving the Helmholtz equation, a numerical technique based on the fast method of multipoles is used, which allows achieving high accuracy of the results obtained at the lowest cost of computer time. The calculations are compared with known experimental data and a good agreement is obtained. The formulas for calculating the main characteristic of the scattering field (the total scattering cross section) for a sound-permeable sphere are generalized. The effect on this characteristic of the physical parameters of media outside and inside the sphere, such as the density and speed of sound, is shown. A numerical parametric analysis of the pressure distribution around a single sound-permeable sphere for different values of the wave radius, density, and speed of sound of the outer and inner medium of the sphere is carried out. The obtained results will later be used for test verification calculations for the numerical solution of the generalized problem of acoustic scattering of a set of sound-permeable spheres (coaxial or arbitrarily located in space).

scholarly journals Thermal ignition of a combustible over an inclined hot plate

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Salaika Parvin ◽  
Nepal Chandra Roy ◽  
Rama Subba Reddy Gorla
Keyword(s):  
Mixed Convection ◽  
Convection Flow ◽  
Physical Parameters ◽  
Thermal Ignition ◽  
Mixed Convection Flow ◽  
Flow Properties ◽  
Continuous Transformation ◽  
Hot Plate ◽  
Ignition Characteristics ◽  
Good Agreement

AbstractIn this study, the ignition characteristics and the flow properties of the mixed convection flow are presented. Detailed formulations of the forced, natural and mixed convection problems have been discussed. In order to avoid inconvenient switch between the forced and natural convection we introduce a continuous transformation in the mixed convection. We make a comparison between these situations which reveal a good agreement. For mixed convection flow, the ignition distance is explicitly expressed as a function of the Prandtl number, reaction parameter and wall temperature. It has been observed that owing to the increase of the aforesaid parameters, the thermal ignition distance is reduced. Numerical results are illustrated for velocity, temperature, and concentration for different physical parameters. Furthermore, the development of combustion is presented by using streamlines, isotherms and isolines of fuel and oxidizer.

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