Performance investigation of a hybrid photovoltaic/thermoelectric system integrated with parabolic trough collector

Soltani, Shohreh; Kasaeian, Alibakhsh; Sokhansefat, Tahmineh; Shafii, Mohammad Behshad

doi:10.1016/j.enconman.2017.12.091

Cited by 70 publications

(16 citation statements)

References 35 publications

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“…The conversion efficiency of the cell in terms of reference efficiency is given by

η_{CPV} = η_{Tref} ([], 1 - ϕ_{ref} ((), T_{PV} - T_{ref})),

where η Tref and ϕ ref are the conversion efficiency and the temperature coefficient of the PV at standard test condition (STC), respectively. To determine the performance and losses of PV system in Equation , the temperature distribution across the layer is expressed as energy balance in the form of conductive heat transfer.…”

Section: Hybrid Pv‐tegmentioning

confidence: 99%

A review on the performance of photovoltaic/thermoelectric hybrid generators

et al. 2020

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Summary Utilization of a broad range of solar spectrum has the potential for high power output from solar cells. However, solar photovoltaics (PVs) can convert only part of the solar electromagnetic spectrum into electricity efficiently. The remaining of the solar radiation is often dissipated in the form of heat, which causes performance reduction and reduces the life expectancy of the solar PV cell. Thermoelectric generators (TEGs) are devices that operate like a heat engine by converting thermal energy into electricity through thermoelectric effect. Integrating a TEG into a PV converter will enhance its efficiency and reduce the amount of heat dissipated. Different studies have been carried out and are still taking place to increase the total efficiency of a coupled photovoltaic thermoelectric generator (PV‐TEG) system. This review discusses the concept of PV converters and thermoelectric devices and presents the various models and numerical and experimental investigations on performance enhancement of integrated PV‐TEGs. The influence of key parameters on the performance of PV‐TEG were also discussed. The review is expected to serve as a reference to recent work on research and development of integrated PV‐TEG systems.

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“…The conversion efficiency of the cell in terms of reference efficiency is given by

η_{CPV} = η_{Tref} ([], 1 - ϕ_{ref} ((), T_{PV} - T_{ref})),

Section: Hybrid Pv‐tegmentioning

confidence: 99%

A review on the performance of photovoltaic/thermoelectric hybrid generators

et al. 2020

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“…The efficiency calculations for evacuated tube collector were studied by Liang et al [41]. The formula for calculating parabolic trough collector efficiency is reported by Soltani et al [42]. Obviously, the difference between the working fluids inlet and outlet temperature steadily increased over time as the solar flux increased and also decreased over time as the solar irradiance decreased at a steady flow rate of 1 L/min, which indicates that at the lower flow rates, the hybrid NF had more time to absorb sunrays for conversion to heat.…”

Section: Comparison Of Thermal Conductivitymentioning

confidence: 99%

Performance analysis of direct absorption-based parabolic trough solar collector using hybrid nanofluids

Khalil

Amjad

Noor

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Addition of a small amount of nanoparticles to the working fluids of a parabolic trough collector does not only enhance the heat transfer properties and thermal conductivity of basefluid but also improves the thermal efficiency of the system. The current investigation presents a comparative analysis of experimental performance of a conventional parabolic trough collector and direct absorption parabolic trough collector for capturing solar thermal energy. Two separate nanomaterials, Al 2 O 3 (with high scattering properties) and CuO (with high absorption properties), were selected for the preparation of the hybrid nanofluids. A customized experimental setup was developed to evaluate their photothermal performance. The nanofluid samples in the concentration range of 0.01-0.5 wt% were investigated under a natural solar flux. Thermal efficiency of conventional parabolic trough collector was increased by 31% using hybrid nanofluid as compared to basefluid. The thermal efficiency enhancement of direct absorption parabolic trough collector was observed as 19% higher than that of conventional parabolic trough collector due to higher heat transfer rate, solar trapping and volumetric absorption. These binary nanofluids can be potential working fluids in various applications based on solar thermal energy.

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“…PV/TEG/SC (photovoltaic panel/thermoelectric generator/ solar collector) hybrid systems were studied under natural and concentrated light. 25,26 Sripadmanabhan Indira et al 27 reviewed various integration options of the CPV-TEG system available in the literature including CPV-TEG with a spectral beam splitter, CPV/thermal-TEG, and CPV-TEG with phase changing materials. Authors found that the integrated CPV-TEG based solar thermal systems have higher electrical and thermal performances than that of non-concentrated PV-TEG systems.…”

Section: Introductionmentioning

confidence: 99%

Energy performance investigation of nanofluid‐based concentrated photovoltaic / thermal‐thermoelectric generator hybrid system

et al. 2021

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Nanofluid can be used in a CPV/T solar collector to boost electrical and thermal performances as this technology has drawn great attention from researchers over the last decades. In a CPV/T system, the amount of collected heat could be significantly higher than the amount of electrical power. Combining thermoelectric generator (TEG) and nanofluid-based CPV/T system may result in better electrical performance than CPV/T system alone. In the present work, a nanofluid-based CPV/T-TEG hybrid system with a cooling channel was designed and tested, and the obtained performance was compared with conventional cooling methods [ie, natural cooling (CPV/TEG) and water cooling (WCPV/T-TEG) methods]. At the optimum value of solar concentration, C = 14.6, the electrical performance of the nanofluid-based concentrated photovoltaic/thermal-thermoelectric generator (NCPV/T-TEG) configuration was found to be 89% higher than the standard PV modules. For the same

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Performance investigation of a hybrid photovoltaic/thermoelectric system integrated with parabolic trough collector

Cited by 70 publications

References 35 publications

A review on the performance of photovoltaic/thermoelectric hybrid generators

A review on the performance of photovoltaic/thermoelectric hybrid generators

Performance analysis of direct absorption-based parabolic trough solar collector using hybrid nanofluids

Energy performance investigation of nanofluid‐based concentrated photovoltaic / thermal‐thermoelectric generator hybrid system

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