Advances in PV and PVT cooling technologies: A review

Hamzat, Abdulhammed K.; Sahin, Ahmet Z.; Omisanya, Mayowa I.; Alhems, Luai M.

doi:10.1016/j.seta.2021.101360

Cited by 69 publications

(22 citation statements)

References 160 publications

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“…The output power was increased from 41 W to 47.5 and 44.6 with a combination of cotton wick-water and cotton wick-nanofluid, respectively. In summary, by comparing all other cooling methods, the nanofluid system has higher heat transfer characteristics because of higher thermal conductive characteristics (Hamzat et al, 2021).…”

Section: Pcm Based Heat Sinksmentioning

confidence: 98%

An Enhancement of the Solar Panel Efficiency: A Comprehensive Review

Parthiban

Ponnambalam

2022

Front. Energy Res.

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Recently solar panels are gaining popularity in the field of non-conventional energy sources for generating green and clean electric power. On the negative side, the photovoltaic efficiency is reduced with an increase in ambient temperature. The production of energy is dropped by 0.33% for every degree Celsius above STC. Consequently, the electric power which is generated by the solar panel may not be sufficient to run the load. It is important to realize that in some applications, such as standalone electric vehicles, space for providing an additional solar panel to compensate for the decremented output power may not be feasible. By implementing the cooling arrangements, this excessive heat might be reduced. Several cooling techniques have been implemented, named as active and passive methods. This article presents a review on maximizing the efficiency of the solar panel by utilizing different cooling methods and by integrating TEG with solar panels.

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Section: Pcm Based Heat Sinksmentioning

confidence: 98%

An Enhancement of the Solar Panel Efficiency: A Comprehensive Review

Parthiban

Ponnambalam

2022

Front. Energy Res.

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“…The overall efficiency of such systems is considered high and sometimes reaches more than 90% (not accounting for the difference of energy fromelectrical or thermal). The collector used in PVT systems is a heat exchanger whose shape and design depends on the fluid used, water, nanofluids, PCM, or nanofluids and nano-PCM . Hou et al (2022) also explained that the shape of the flow inside the collector has a key role in determining the enhancement in efficiencies, whether electrical or thermal.…”

Section: Introductionmentioning

confidence: 99%

Cooling of a PVT System Using an Underground Heat Exchanger: An Experimental Study

Majeed,

Abdul-Zahra,

Mutasher

et al. 2023

ACS Omega

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In the recent decades, the researchers have been focused on the use of photovoltaic thermal (PVT) systems that provide the best performance and cooling for the photovoltaic panels. In this study, a PVT system consisting of a monocrystalline PV panel and a spiral heat exchanger was connected to an underground heat exchanger that is buried at a depth of 4 m below the surface of the earth. The procedure of the current study can be considered the first of its kind in the Middle East and North Africa region (based on the researchers' knowledge). The study was carried out on agricultural land in Baghdad-Iraq during months of July and August-2022, which are considered the harshest weather conditions for this city. The heat exchanger consists of a copper tube with a length of 21 m and formed in the shape of 3U, and it was buried in the earth and connected with a PVT system. The results of the study showed that the site chosen to bury the heat exchanger (4 m deep) has a stable soil temperature at 22.5 °C. From various volumetric flow rates, a flow rate of 0.18 l/s was selected which is considered the highest flow rate that can show vibration in the PVT system which may harm the system. The practical measurements showed that the largest difference in the surface temperatures of standalone PV and PVT was around 20 °C in favor of the latter. The electrical efficiency of the studied PVT system also increased to outperform the standalone PV system by 127.3%. By comparing the results of the current study with studies of water-cooled PVT systems from the literature, it is clear that the proposed system is feasible and has an acceptable efficiency in such harsh weather conditions tested during the experiment.

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“…For this reason, it has become more appropriate to go toward the exploitation of renewable energy sources, as fossil fuels are not sustainable and contribute to environmental pollution. 1 Solar energy is one of the most important sources of renewable energy, as it can meet energy needs and contribute to economic growth. The use of photovoltaic panels to generate electricity is considered one of the most crucial energy conversion systems.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the rise in global electricity demand has led to energy security instability, which has negatively affected both the industrial sector and the standard of living of the population. For this reason, it has become more appropriate to go toward the exploitation of renewable energy sources, as fossil fuels are not sustainable and contribute to environmental pollution 1 . Solar energy is one of the most important sources of renewable energy, as it can meet energy needs and contribute to economic growth.…”

Section: Introductionmentioning

confidence: 99%

Experimental performance analysis of photovoltaic/thermal hybrid system cooled by forced ventilation

Boutina,

Khelifa,

Lebbi

et al. 2023

Env Prog and Sustain Energy

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Solar panels' efficiency is highly affected by high‐operating temperatures, especially in semi‐arid and arid regions. This outdoor experimental study aimed to enhance the energy performance of the photovoltaic module by integrating two fans at the outlet of the thermal/photovoltaic hybrid system to ensure forced ventilation. The work novelty depending on achieving low energy consumption by DC fans, so that there is a proportional relationship between the intensity of solar radiation and the energy produced and consumed. The influence of the reduced temperature, operating temperature, and solar radiation intensity on the energy performance of the photovoltaic/thermal hybrid system was analyzed experimentally. The obtained results showed an improvement in electrical and overall efficiency of the new hybrid system by about 4% and 60%, respectively, compared to the conventional photovoltaic module. On the contrary, a decrease in the temperature of the PV module installed in the hybrid system was measured by about 9°C, compared to the conventional photovoltaic module. In addition to the effectiveness of the new technology air cooling proposed at the lowest consumption cost, the thermal energy generated from the proposed system can be invested in solar drying and building applications.

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Advances in PV and PVT cooling technologies: A review

Cited by 69 publications

References 160 publications

An Enhancement of the Solar Panel Efficiency: A Comprehensive Review

An Enhancement of the Solar Panel Efficiency: A Comprehensive Review

Cooling of a PVT System Using an Underground Heat Exchanger: An Experimental Study

Experimental performance analysis of photovoltaic/thermal hybrid system cooled by forced ventilation

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