A hybrid concentrated solar thermal collector/thermo-electric generation system

Al‐Nimr, M. A.; Tashtoush, Bourhan; Khasawneh, Mohammad A.; Al-Keyyam, Ibrahim

doi:10.1016/j.energy.2017.06.093

Cited by 45 publications

(7 citation statements)

References 27 publications

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“…Being clean, sustainable, and the most abundant energy resource on the earth, solar energy draws a great deal of attention to address a plethora of energy issues. As a matter of fact, cumulative solar irradiance reaching the earth's surface is greater than 7,500 times the total energy consumption per year which is 450 EJ worldwide (Thirugnanasambandam et al, 2010;Moh'd A et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

An Experimental and Comparative Performance Evaluation of a Hybrid Photovoltaic-Thermoelectric System

Khan

Kazim

et al. 2021

Front. Energy Res.

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The majority of incident solar irradiance causes thermalization in photovoltaic (PV) cells, attenuating their efficiency. In order to use solar energy on a large scale and reduce carbon emissions, their efficiency must be enhanced. Effective thermal management can be utilized to generate additional electrical power while simultaneously improving photovoltaic efficiency. In this work, an experimental model of a hybrid photovoltaic-thermoelectric generation (PV-TEG) system is developed. Ten bismuth telluride-based thermoelectric modules are attached to the rear side of a 10 W polycrystalline silicon-based photovoltaic module in order to recover and transform waste thermal energy to usable electrical energy, ultimately cooling the PV cells. The experiment was then carried out for 10 days in Lahore, Pakistan, on both a simple PV module and a hybrid PV-TEG system. The findings revealed that a hybrid system has boosted PV module output power and conversion efficiency. The operating temperature of the PV module in the hybrid system is reduced by 5.5%, from 55°C to 52°C. Due to a drop in temperature and the addition of some recovered energy by thermoelectric modules, the total output power and conversion efficiency of the system increased. The hybrid system’s cumulative output power increased by 19% from 8.78 to 10.84 W, compared to the simple PV system. Also, the efficiency of the hybrid PV-TEG system increased from 11.6 to 14%, which is an increase of 17% overall. The results of this research could provide consideration for designing commercial hybrid PV-TEG systems.

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Section: Introductionmentioning

confidence: 99%

An Experimental and Comparative Performance Evaluation of a Hybrid Photovoltaic-Thermoelectric System

Khan

Kazim

et al. 2021

Front. Energy Res.

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“…However, conventional energy sources like fossil fuel are limited energy sources that cause serious environmental issues which affect the climate and health of the people. Eventually, the global energy demand would outgrow the available energy supply from conventional sources [1,2]. It is therefore imperative to consider renewable energy sources because of their unique advantages such as; inexhaustibility and low pollution.…”

Section: Introductionmentioning

confidence: 99%

Advancements in thermoelectric generators for enhanced hybrid photovoltaic system performance

Shittu

Akhlaghi

et al. 2019

Renewable and Sustainable Energy Reviews

133

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Effective thermal management of photovoltaic cells is essential for improving its conversion efficiency and increasing its life span. Solar cell temperature and efficiency have an inverse relationship therefore, cooling of solar cells is a critical research objective which numerous researchers have paid attention to. Among the widely adopted thermal management techniques is the use of thermoelectric generators to enhance the performance of photovoltaics. Photovoltaic cells can convert the ultra-violent and visible regions of the solar spectrum into electrical energy directly while thermoelectric modules utilize the infrared region to generate electrical energy. Consequently, the combination of photovoltaic and thermoelectric generators would enable the utilization of a wider solar spectrum. In addition, the combination of both systems has the potential to provide enhanced performance due to the compensating effects of both systems. The waste heat produced from the photovoltaic can be used by the thermoelectric generator to produce additional energy thereby increasing the overall power output and efficiency of the hybrid system. However, the integration of both systems is complex because of their opposing characteristics thus, effective coupling of both systems is essential. This review presents the concepts of photovoltaics and thermoelectric energy conversion, research focus areas in the hybrid systems, applications of such systems, discussion of the most recent research accomplishments and recommendations for future research. All the essential elements and research areas in hybrid photovoltaic/thermoelectric generator are discussed in detailed therefore, this review would serve as a valuable reference literature.

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“…2) is due to this temperature drop. A different electrical response of the PV cell can be seen in area (3), where the solar concentration, temperature, and heat flux increase. Therefore, the PV power generation decreases in area (4), and the two main parameters affecting the PV power generation in this study are solar irradiation and the operating temperature.…”

Section: Resultsmentioning

confidence: 99%

“…The fast depletion of conventional energy resources threatens the world's energy supply. Worldwide energy demand is outgrowing the existing energy supply from fossil fuels [1][2][3], which currently provide more than 80% of demanded energy. Due to the unfriendly nature of conventional energy sources to the atmospheric environment, substantial exploration in fields of clean, renewable, and sustainable energy is required.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Transient Response of a Hybrid Thermoelectric–Photovoltaic System with Beam Splitter

Mahmoudinezhad

Cotfas

et al. 2021

Energies

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In the current study, the electrical responses of a thermoelectric (TE) module and a photovoltaic (PV) cell are investigated in three different systems, namely, a PV-only system, TE-only system, and hybrid TE-PV system with a beam splitter (TE-PV-BS), under variable solar irradiations demonstrating partly cloudy weather conditions. To enhance the deployment of solar energy, a predesigned beam splitter combined with the amorphous silicon TE and PV system is used in the experiments. The impact of the spectral beam splitting technology on the conversion performance of the TE module and PV cell in the hybrid system is studied and compared to the performance of the TE-only and PV-only systems. The electrical output parameters of the TE module and PV cell are obtained for the studied systems, and they are discussed in detail. The results of this work show that the power generated by the PV cell has a stepwise fluctuation similar to the variation in the concentrated solar radiation. Affected by its heat capacity, the power variation is monotonous with the TE module. The results moreover indicate that there is more power generated by the PV cell in the TE-PV-BS hybrid system than by the PV-only system. In comparison, the TE-only system produces more power than the TE module in the hybrid system. Furthermore, the TE-PV-BS hybrid system generates higher and more stable electrical power than the TE-only and PV-only systems, showing a significant advantage of the spectrum management concept.

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A hybrid concentrated solar thermal collector/thermo-electric generation system

Cited by 45 publications

References 27 publications

An Experimental and Comparative Performance Evaluation of a Hybrid Photovoltaic-Thermoelectric System

An Experimental and Comparative Performance Evaluation of a Hybrid Photovoltaic-Thermoelectric System

Advancements in thermoelectric generators for enhanced hybrid photovoltaic system performance

An Experimental Study on Transient Response of a Hybrid Thermoelectric–Photovoltaic System with Beam Splitter

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