Mathematical Modelling of Bifacial Dual SIS Solar Cell and Optimization of Tilt Angle

Silicon ◽  
2022 ◽  
Author(s):  
Kaustuv Dasgupta ◽  
Anup Mondal ◽  
Utpal Gangopadhyay
Keyword(s):  
Solar Cell ◽  
Mathematical Modelling ◽  
Tilt Angle

scholarly journals Performance of Silicon Solar Cells under the Climatic Conditions of Bangladesh, Part III. Performance of PV Cells under Defuse Light and Applicability for Home Lighting

1970 ◽  
Vol 46 (1) ◽  
pp. 117-122 ◽  
Author(s):  
M Eusuf ◽  
M Khanam ◽  
S Khatun
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid Surface ◽  
Tilt Angle ◽  
Crystalline Silicon ◽  
Climatic Conditions ◽  
Solar Panel ◽  
Silicon Solar Cells ◽  
Crystalline Silicon Solar Cell ◽  
Solar Home System

In part II of this series, it was reported that the solar home system (SHS) supplied by REB in some islands of the Meghna river in the district of Narsingdi could not meet the demand of the recipients in the rainy season when the sky remained overcast with cloud. The tilt angle for all installations was 45° facing south. In this study, effects of direct and diffuse sunlight with variation of tilt angles from 0° to 45° were studied using a mono crystalline silicon cell. Pyranometer and the solar panel were kept under identical conditions. Energy absorbed by the solar panel in diffuse sunlight was found 0.55% of that received by the Pyranometer under similar conditions showing that mono crystalline silicon solar cell of the type under study was not suitable for use in SHS. Moreover, the gap between the panel and the solid surface below it has significant effects on the efficiency of the solar cell. Further similar study using different kinds of cells- mono crystalline, poly crystalline and amorphous is needed for proper designs of SHS. Optimization of the gap between the panel and the solid surface below it is important for roof-mounted and ground-mounted panels. Key words: Silicon solar cells; Tilt angle; Diffuse light; Home lighting; Monocrystaline. DOI: http://dx.doi.org/10.3329/bjsir.v46i1.8114 Bangladesh J. Sci. Ind. Res. 46(1), 117-122, 2011   

scholarly journals Mathematical Modelling of Bifacial Dual SIS Solar Cell and Optimization of Tilt Angle

2021 ◽  
Author(s):  
Kaustuv Dasgupta ◽  
Anup Mondal ◽  
Utpal Gangopadhyay
Keyword(s):  
Solar Cell ◽  
Mathematical Modelling ◽  
Indian Subcontinent ◽  
Front Surface ◽  
Back Surface ◽  
Tropical Region ◽  
Solar Panels ◽  
Sis Junction ◽  
Optimum Cost ◽  
P Type

Abstract The major challenge of PV cell design and installation has always been to find the optimum cost per energy and area of installation of solar panels. In densely populated and high-yielding agricultural country like India land acquisition is becoming an issue. Moreover the consisting demand to deduce the cost per energy indulges the worldwide scientists to design more efficient solar cells with low production cost. In developing countries scientists and engineers are trying to find an amicable solution to meet up these problems. In this paper the mathematical modelling of a dual SIS bifacial vertically mounted solar panel has been proposed to mitigate the energy and land area crisis in countries of Indian subcontinent, south Asia and elsewhere. The SIS (Semiconductor-Insulator-Semiconductor) technology was chosen for its extremely low thermal budget and less complicated production procedure. A bifacial solar cell with SIS junction in both sides was modelled. The front surface SIS junction was considered ZnO-SiO2-Si(p-type) while the back surface junction was considered Si(p type)-Al2O3-SnO. The efficiency for front and back surface was calculated as 5.64% and 5.58% respectively. We have further considered the effect of albedo from two different surfaces (soil and concrete) and the efficiencies of front and back surface for these albedo radiations. The angle of installation was optimized for both these effects. Considering both direct and albedo the all-day efficiency was calculated as 22.47% for a sunny day tropical region.

scholarly journals Evaluation of Photovoltaic Solar Power of a Dual-Axis Solar Tracking System

2020 ◽  
Vol 55 (1) ◽  
Author(s):  
Ali Sabri Allw ◽  
Ikhlas Hameem Shallal
Keyword(s):  
Solar Cell ◽  
Tilt Angle ◽  
Tracking System ◽  
Electrical Power ◽  
Solar Panel ◽  
Solar Tracking ◽  
Tilting Angle ◽  
Zero Degree ◽  
Axis Position ◽  
Electrical Power Output

In this research project, a tip-tilting angle of a photovoltaic solar cell was developed to increase generated electrical power output. An active, accurate, and simple dual-axis tracking system was designed by using an Arduino Uno microprocessor. The system consisted of two sections: software and apparatus (hardware). It was modified by using a group of light-dependent resistor sensors, and two DC servo motors were utilized to rotate the solar panel to a location with maximum sunlight. These components were arranged in a mechanical configuration with the gearbox. The three locations of the solar cell were chosen according to the tilt angle values, at zero angles, which included an optimal 33-degree angle for the Baghdad location and a variable angle with the dual-axis tracking system. For maximum value of the extracted solar energy, a photovoltaic solar panel that collects sunlight should be in normal position onto this radiation. Solar trackers relocated the panel toward the path of the Sun to ensure that the collector rotated at an optimal tilt angle. The results showed that the generated power at the dual-axis position was 3.384 watts per hour (W/h), the 33-degree angle yielded 2.237 W/h, and the zero-degree angle yielded 1.09 W/h. The results confirmed that the performance of a dual-axis solar tracking system is active and efficient.

scholarly journals JUSTIFICATION OF THE DESIGN OF THE DENTURE WITH CLASPLESS FIXATION AT THE MESIO-DISTAL INCLINATION OF THE TEETH.

2019 ◽  
pp. 55-58
Author(s):  
I.M. Tkachenko ◽  
S.A. German ◽  
E.O. Berezhna ◽  
K.U. Andrienko ◽  
A.O. Izotova
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Modelling ◽  
Elastic Material ◽  
Tilt Angle ◽  
Vertical Direction ◽  
Orthopedic Treatment ◽  
Shaped Body ◽  
Removable Denture ◽  
Elastic Forces ◽  
Data Tables

The aim of the study was to improve the effectiveness of orthopedic treatment for patients with dentition defects by method of making a removable denture with claspless fixation, taking into account the mathematical modelling of the teeth and undercut inclination. The technique of making claspless partial dentures by using A-silicone material is based on the idea of using the elastic forces generated in the wedge-shaped body of elastic material under the influence of an external force, which resets the prosthesis. Based on the considerations, it was developed a scheme of  the claspless denture model and the mathematical modeling of partial removable laminar dentures fixation with elastic material, resulting in the special formula. After analyzing the results, we suggest to use in the clinic simplified table. With their help, you can easily determine the rationality of claspless denture, which is planned to produce on the technology that we offer. For this, you need to determine the ratio of the magnitude undercut and height of the inclined teeth and to compare them with the data tables. The most efficient should be considered claspless design of the prosthesis, if both of the inclined abutments have a ratio of the magnitude of undercut and height not less than the value of the ratio when the value F/2=0.3 kg U= 1 mm. In this case, it can be argued that claspless prosthesis under the influence of dropping efforts 0,3 kg will move in the vertical direction not more than 0.5 mm, and under the influence dropping efforts to 0.6 kg not more than 1 mm. But, if one or both of the sloping supporting the tooth have the ratio of the magnitude undercut and a height of about one (an angle of about 45°), then there will be difficulties with the insertion of claspless denture on the prosthetic bed. Thus, the fixation and stabilization of the claspless denture will be carried out using wedge-shaped body of elastic material, the amount of which is calculated individually depending on the above parameters and fills the area between the denture and supporting teeth of the patient. The optimal ratio of undercut and height of the inclined teeth is discussed. When the mesio-distal tilt angle is more than 45°, there are difficulties with the insertion of the prosthesis, and when tilted less than 15° it can have problems with fixing. Allowed the thickness of the silicone compound is from 0.1 to 2.4 mm When the thickness of the layer of material above 3.0 mm are possible complications in the form of breaking on period of exploitation.

scholarly journals The effect of Tilt Angle, Surface Azimuth and Mirror in Solar Cell Panel Output in Baghdad.

2011 ◽  
Vol 8 (2) ◽  
pp. 652-657
Author(s):  
Baghdad Science Journal
Keyword(s):  
Solar Cell ◽  
Output Power ◽  
Tilt Angle ◽  
Azimuth Angle ◽  
Autumn Season ◽  
First Case ◽  
Sunlight Intensity

In this research (100* 40* 4 cm) solar cell panel was used in Baghdad at autumn season (2010), to get best solar cell panel angles experimentally, and then a mirror (40*50 cm) is use to concentrate incident sunlight intensity on a panel. At first case we get (Tilt angle ?P =60°and Surface Azimuth angle ?P =36°E) is the best angles and other case, we add a mirror at angle = 120° at bottom of panel, then we get output power (27.48watt) is bigger than without using a mirror (25.16watt). We can benefit from these cases in variety applications.

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