Optimization of thermal and electrical efficiencies of a photovoltaic module using combined PCMs with a thermo-conductive filler

<em>A research about cocoa beans drying used solar tunnel dryer with photovoltaic module driven have conducted in Manokwari. Solar tunnel dryer used in this research adapted from type Hohenheim with photovoltaic module and integrated air heat collector has been installed at the Department of Agricultural Technology, Papua State University Manokwari to dried cocoa beans. The objectives of this research were to design solar tunnel dryer and evaluate it�s performance in dryed cocoa beans. The result obtained was a new construction of solar tunnel dryer for cocoa beans with dimensions 6 m of length and 0,9 m of wide. The dryer completed with photovoltaic module to drive the blowers of hot drying air. �Performance test of the dryer showed that drying of 10 kg of cocoa beans with initial moisture content about 70% wet basis needed 13 hours of drying time to achieved final moisture content about 7,17% wet basis. The drying time achieved was faster compared than traditional solar drying that needed 20 hours of drying time. The maximum temperature achieved in drying chamber was 60 <sup>o</sup>C.</em>

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Performansi aktual modul photovoltaik dengan pengarah matahari

Jurnal Teknik Mesin Indonesia ◽

10.36289/jtmi.v12i2.80 ◽

2018 ◽

Vol 12 (2) ◽

pp. 98 ◽

Cited By ~ 1

Author(s):

Jalaluddin . ◽

Baharuddin Mire

Keyword(s):

Solar Radiation ◽

Local Time ◽

Performance Characteristic ◽

Electrical Energy ◽

Photovoltaic Module ◽

Experiment Data ◽

Actual Performance ◽

Pv Module ◽

Solar Tracking ◽

Pv Modules

Actual performance of photovoltaic module with solar tracking is presented. Solar radiation can be converted into electrical energy using photovoltaic (PV) modules. Performance of polycristalline silicon PV modules with and without solar tracking are investigated experimentally. The PV module with dimension 698 x 518 x 25 mm has maximum power and voltage is 45 Watt and 18 Volt respectively. Based on the experiment data, it is concluded that the performance of PV module with solar tracking increases in the morning and afternoon compared with that of fixed PV module. It increases about 18 % in the morning from 10:00 to 12:00 and in the afternoon from 13:30 to 14:00 (local time). This study also shows the daily performance characteristic of the two PV modules. Using PV module with solar tracking provides a better performance than fixed PV module.

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RESULTS OF THE PERFORMANCE NUMERICAL SIMULATION OF A SOLAR CONCENTRATOR MODULE WITH A THERMAL-PHOTOVOLTAIC RECEIVER

Elektrotekhnologii i elektrooborudovanie v APK ◽

10.22314/2658-4859-2020-67-4-51-56 ◽

2020 ◽

Vol 4 (41) ◽

pp. 51-56

Author(s):

DMITRIY STREBKOV ◽

◽

NATAL’YA FILIPPCHENKOVA ◽

Keyword(s):

Renewable Energy Sources ◽

Photovoltaic Cells ◽

Calculated Data ◽

Electrical Performance ◽

Research Purpose ◽

Photovoltaic Module ◽

Solar Concentrator ◽

Ansys Fluent ◽

Photovoltaic Modules ◽

Agroindustrial Complex

In the field of energy supply to agro-industrial facilities, there is an increasing interest in the development of structures and engineering systems using renewable energy sources, including solar concentrator thermal and photovoltaic modules that combine photovoltaic modules and solar collectors in one structure. The use of the technology of concentrator heat and photovoltaic modules makes it possible to increase the electrical performance of solar cells by cooling them during operation, and significantly reduces the need for centralized electricity and heat supply to enterprises of the agroindustrial complex. (Research purpose) The research purpose is in numerical modeling of thermal processes occurring in a solar concentrator heat-photovoltaic module. (Materials and methods) Authors used analytical methods for mathematical modeling of a solar concentrator heat and photovoltaic module. Authors implemented a mathematical model of a solar concentrator heat and photovoltaic module in the ANSYS Fluent computer program. The distribution contours of temperature and pressure of the coolant in the module channel were obtained for different values of the coolant flow rate at the inlet. The verification of the developed model of the module on the basis of data obtained in an analytical way has been performed. (Results and discussion) The results of comparing the calculated data with the results of computer modeling show a high convergence of the information obtained with the use of a computer model, the relative error is within acceptable limits. (Conclusions) The developed design of the solar concentrator heat and photovoltaic module provides effective cooling of photovoltaic cells (the temperature of photovoltaic cells is in the operating range) with a module service life of at least twenty-five years. The use of a louvered heliostat in the developed design of a solar concentrator heat and photovoltaic module can double the performance of the concentrator.

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Evaluating the Output of a Car-Mounted Photovoltaic Module Under Driving Conditions

IEEE Journal of Photovoltaics ◽

10.1109/jphotov.2021.3087748 ◽

2021 ◽

pp. 1-6

Author(s):

Yasuyuki Ota ◽

Kenji Araki ◽

Akira Nagaoka ◽

Kensuke Nishioka

Keyword(s):

Photovoltaic Module ◽

Driving Conditions

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Influence of filler hybridization on thermomechanical properties of hemp/silver epoxy composite

Polymers and Polymer Composites ◽

10.1177/0967391120978112 ◽

2020 ◽

pp. 096739112097811

Author(s):

Munjula Siva Kumar ◽

Santosh Kumar ◽

Krushna Gouda ◽

Sumit Bhowmik

Keyword(s):

Thermal Conductivity ◽

Silver Nanoparticles ◽

Epoxy Polymer ◽

Hybrid Composites ◽

Conductive Filler ◽

Weight Fraction ◽

Mechanical Analysis ◽

Thermomechanical Properties ◽

Material Behavior ◽

Good Crystallinity

The polymer composite material’s thermomechanical properties with fiber as reinforcement material have been widely studied in the last few decades. However, these fiber-based polymer composites exhibit problems such as fiber orientation, delamination, fiber defect along the length and bonding are the matter of serious concern in order to improve the thermomechanical properties and obtain isotropic material behavior. In the present investigation filler-based composite material is developed using natural hemp and high thermal conductive silver nanoparticles (SNP) and combination of dual fillers in neat epoxy polymer to investigate the synergetic influence. Among various organic natural fillers hemp filler depicts good crystallinity characteristics, so selected as a biocompatible filler along with SNP conductive filler. For enhancing their thermal conductivity and mechanical properties, hybridization of hemp filler along with silver nanoparticles are conducted. The composites samples are prepared with three different combinations such as sole SNP, sole hemp and hybrid (SNP and hemp) are prepared to understand their solo and hybrid combination. From results it is examined that, chemical treated hemp filler has to maximized its relative properties and showed, 40% weight % of silver nanoparticles composites have highest thermal conductivity 1.00 W/mK followed with hemp filler 0.55 W/mK and hybrid 0.76 W/mK composites at 7.5% of weight fraction and 47.5% of weight fraction respectively. The highest tensile strength is obtained for SNP composite 32.03 MPa and highest young’s modulus is obtained for hybrid composites. Dynamic mechanical analysis is conducted to find their respective storage modulus and glass transition temperature and that, the recorded maximum for SNP composites with 3.23 GPa and 90°C respectively. Scanning electron microscopy examinations clearly illustrated that formation of thermal conductivity chain is significant with nano and micro fillers incorporation.

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