An Overview of Factors Influencing Solar Power Efficiency and Strategies for Enhancing

Singh, Aniket; Singh, Rohan

doi:10.1109/i-pact52855.2021.9696845

Cited by 7 publications

(2 citation statements)

References 17 publications

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“…Solar photovoltaic (PV) energy is a type of renewable energy generated by a solar cell system that utilizes PV technology to convert solar irradiation into electrical energy. Currently, solar PV projects have become more affordable than the marginal costs of fossil fuels on a global scale [2]. In addition to exploring new materials for PV cells, researchers have proposed various alternative approaches.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a dual-axis sun tracker for an Arduino-based micro-controller photovoltaic system

Wong,

Nabipour Afrouzi,

Tavalaei

2024

futech

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This research investigates the optimization of solar panel performance by designing and implementing a low-cost Dual-Axis Sun Tracker (DAST) for an Arduino-based Microcontroller Photovoltaic System. The primary aim is to enhance solar energy extraction by precisely aligning the panel perpendicular to the sun's position, maximizing output voltage and current efficiency compared to fixed systems. The DAST employs two micro servo motors, SG90, controlled by a specialized chronological algorithm in offline mode, ensuring strategic alignment and scheduled adjustments. A comprehensive evaluation of the DAST's performance is conducted, contrasting it with a Fixed System to underscore the advantages of solar tracking. As a result, a DAST produces higher output than a fixed system by 0.896W during sunny days and 0.206W during cloudy days. Besides, the efficiency of PV panels in the DAST is 71.65%, and fixed is 49.66% during sunny days, while DAST is 22.96% and fixed is 17.91% during cloudy days.

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Section: Introductionmentioning

confidence: 99%

Design and implementation of a dual-axis sun tracker for an Arduino-based micro-controller photovoltaic system

Wong,

Nabipour Afrouzi,

Tavalaei

2024

futech

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“…The temperature also affects the energy output of a solar panel. Solar panels become less efficient as they get hotter, and this can reduce their energy output [1]. This is why solar panels are often installed with a gap between the panel and the roof to allow for ventilation and to prevent them from overheating.…”

Section: Introductionmentioning

confidence: 99%

LEESOLA: A Locally Made Energy Efficient Solar Tracking System for Home Use

Kommey,

Tamakloe,

Jerry

et al. 2024

tech

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A solar tracking system is used to orient solar reflectors, photovoltaic panels, and other solar energy harvesting equipment toward the sun mainly to maximize energy output. The LEESOLA system offers an optimized way to increase the amount of energy produced by exposing the harvesting equipment to the sun’s rays. This project is a crucial step towards a more sustainable future and reducing the reliance of humans on traditional energy sources. The system architecture of the LEESOLA solar tracker consists of a microcontroller-based control unit, an ultra-violet (UV) sensor module, motor drivers and PV panels. The UV sensor module detects the location of the sun and sends signals to the control unit. The control unit then passes signals to the motor drivers to introduce a change in the position of the solar panels. The control unit makes use of a suitable algorithm for keeping track of the location of the sun throughout the day and changes the angle of the PV panels accordingly. The UV sensor module makes use of essential optoelectronic components such as photodiodes or phototransistors to detect the position of the sun accurately. As a measure of eliminating any occurrence of misalignment due to factors such as weather conditions, the system has a built-in feedback mechanism that actively monitors the solar panel’s position and adjusts the motor drivers to correct any misalignment. The proposed system obtained an improvement of about 69.29%, 59.41% and 184.96% mean percentage difference in the measured power readings for morning, afternoon, and evening durations respectively. Therefore, this LEESOLA system provided an all-rounded performance improvement over the limiting static methods.

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Surface science and liquid phase investigations of oxanorbornadiene/oxaquadricyclane ester derivatives as molecular solar thermal energy storage systems on Pt(111)

Hemauer,

Krappmann,

Schwaab

et al. 2023

The Journal of Chemical Physics

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The transition to renewable energy sources comes along with the search for new energy storage solutions. Molecular solar thermal systems directly harvest and store solar energy in a chemical manner. By a suitable molecular design, a higher overall efficiency can be achieved. In this study, we investigate the surface chemistry of oxa-norbornadiene/quadricyclane derivatives on a Pt(111) surface. Specifically, we focus on the energy storage and release properties of molecules that are substituted with ester moieties of different sizes. For our model catalytic approach, synchrotron radiation-based x-ray photoelectron spectroscopy measurements were conducted in ultra-high vacuum (UHV) and correlated with the catalytic behavior in the liquid phase monitored by photochemical infrared reflection absorption spectroscopy. The differences in their spectral appearance enabled us to unambiguously differentiate the energy-lean and energy-rich isomers and decomposition products. Next to qualitative information on the adsorption motifs, temperature-programmed experiments allowed for the observation of thermally induced reactions and the deduction of the related reaction pathways. We analyzed the selectivity of the cycloreversion reaction from the energy-rich quadricyclane derivative to its energy-lean norbornadiene isomer and competing processes, such as desorption and decomposition. For the 2,3-bis(methylester)-substitution, the cycloreversion reaction was found to occur between 310 and 340 K, while the thermal stability limit of the compounds was determined to be 380 K. The larger 2,3-bis(benzylester) derivatives have a lower apparent adsorption energy and a decomposition onset already at 135 K. In the liquid phase (in acetonitrile), we determined the rate constants for the cycloreversion reaction on Pt(111) to k = 5.3 × 10−4 s−1 for the 2,3-bis(methylester)-substitution and k = 6.3 × 10−4 s−1 for the 2,3-bis(benzylester) derivative. The selectivities were of >99% and 98% for the two molecules, respectively. The difference in the catalytic behavior of Pt(111) for both derivatives is less pronounced in the liquid phase than in UHV, which we attribute to the passivation of the Pt(111) surface by carbonaceous species under ambient conditions.

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An Overview of Factors Influencing Solar Power Efficiency and Strategies for Enhancing

Cited by 7 publications

References 17 publications

Design and implementation of a dual-axis sun tracker for an Arduino-based micro-controller photovoltaic system

Design and implementation of a dual-axis sun tracker for an Arduino-based micro-controller photovoltaic system

LEESOLA: A Locally Made Energy Efficient Solar Tracking System for Home Use

Surface science and liquid phase investigations of oxanorbornadiene/oxaquadricyclane ester derivatives as molecular solar thermal energy storage systems on Pt(111)

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