Analysis of thermal-electrical performance of PVT collector with reflectors

This work is the result of a study of a photovoltaic/thermal air collector that concentrates solar radiation using two mobile mirrors to enhance electrical and thermal energy. The study is made for the site of Tetouan (Morocco) (longitude=-5°, latitude=35.25°) for a daily variation during typical days in May, June, September, and December, days considered as clear sky. To prove the effectiveness of the mirrors on the production of both electrical and thermal energy by the collector, we compared their electrical and thermal efficiency in two cases, without and with mirrors at the optimal positions. We validate the obtained simulation results by comparing them to the results from experimental studies published in the literature, for which a strong agreement was obtained. The model estimates the solar energy received by the hybrid collector during the day, to optimize the performance of the fixed collector, we have searched for the values of the optimal daily tilt angles of the two mirrors which allowed us to enhance the quantity of incoming solar radiation on the collector. The tilt angles depend on the sun’s elevation angle, the azimuth angle for typical days of the year.

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“…For each node in a lateral section, the heat balances can be written in the following general form [28]:…”

Section: Expressions Of Thermal Energy For the Solar Pv/t Collectormentioning

confidence: 99%

Solar photovoltaic/thermal air collector with mirrors for optimal tilts

Benkaddour

Boulaich

Aroudam

2022

IJECE

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“…On the other hand, the increase in temperature of solar cells results in a decrease of both efficiency and power when the PV panel is irradiated with the layers of the solar cell and lead to a shorter life of the [10], where the average reduction in efficiency of solar panel is about 0.45 % for each degree over the 25 °C [11]. Both solar cell uniformity and their temperature should be regulated by using the appropriate of cooling system, the both technologies used may provide the opportunity to rise or increase the exploit of solar energy and enhance efficiency [12]. Photovoltaic thermel regulation techniques can be divided into passive or active cooling technique, or a combination of both, where passive heat sink cooling is suitable for cooling photovoltaic cells without or with capacitors [13], [14].…”

Section: Introductionmentioning

confidence: 99%

An experimental study of PV/T system using parabolic reflectors and heat exchanger

Ismail¹,

Mohammed²,

Abdelkhalek³

et al. 2021

IJEECS

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<p>Photovoltaic (PV) systems can be made more efficient by forcing the PV panel to operate at its maximum point power due to the electrical properties of photovoltaic generators, which are substantially non-linear (MPP). This study examines the effectiveness of using a combination of parabolic concentrator Bi-reflector and heat exchanger as a cooling system on the performance of photovoltaic generators to get a photovoltaic/thermal (PV/T) system, and their effect on the direct current (DCDC) converter using matrix laboratory (MATLAB) simulink. The experimental tests were carried out under various temperature values and sun irradiation. The results demonstrated that the use of parabolic Bi-reflectors, to further illumine te the panels, and the use of the cooling system to absorb excess heat to get heat water, could increase and enhances performances of the photovoltaic generator.</p>

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Analysis of thermal-electrical performance of PVT collector with reflectors

Cited by 2 publications

References 20 publications

Solar photovoltaic/thermal air collector with mirrors for optimal tilts

Solar photovoltaic/thermal air collector with mirrors for optimal tilts

An experimental study of PV/T system using parabolic reflectors and heat exchanger

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