Advancements in thermoelectric generators for enhanced hybrid photovoltaic system performance

Shittu, Samson; Li, Guiqiang; Akhlaghi, Yousef Golizadeh; Ma, Xiaoli; Zhao, Xudong; Ayodele, Emmanuel

doi:10.1016/j.rser.2019.04.023

Cited by 139 publications

(46 citation statements)

References 158 publications

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“…Ever since the discovery of TENG by Wang's group in 2012, TENG had been utilized as an external power supply for water splitting [165,166]. In terms of energy conversion of TENG, the transfer of contact-induced charges between two triboelectric materials with opposite polarity produced a potential difference during the separation of them [167][168][169][170][171]. Then the produced potential difference would prompt the flow of electrons/ions in the external circuit; hence, it could be utilized as power source [168,[172][173][174][175][176][177][178].…”

Section: Water Splitting Driven By a Triboelectric Nanogeneratormentioning

confidence: 99%

Water Splitting: From Electrode to Green Energy System

et al. 2020

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HIGHLIGHTS • Bifunctional electrode and electrolytic cell configuration for electrochemical water splitting are reviewed. • The different green energy systems powered water splitting are summarized and discussed. • An outlook of future research prospects for the development of green energy system powered water splitting in practical application process is proposed. ABSTRACT Hydrogen (H 2) production is a latent feasibility of renewable clean energy. The industrial H 2 production is obtained from reforming of natural gas, which consumes a large amount of nonrenewable energy and simultaneously produces greenhouse gas carbon dioxide. Electrochemical water splitting is a promising approach for the H 2 production, which is sustainable and pollution-free. Therefore, developing efficient and economic technologies for electrochemical water splitting has been an important goal for researchers around the world. The utilization of green energy systems to reduce overall energy consumption is more important for H 2 production. Harvesting and converting energy from the environment by different green energy systems for water splitting can efficiently decrease the external power consumption. A variety of green energy systems for efficient producing H 2 , such as two-electrode electrolysis of water, water splitting driven by photoelectrode devices, solar cells, thermoelectric devices, triboelectric nanogenerator, pyroelectric device or electrochemical water-gas shift device, have been developed recently. In this review, some notable progress made in the different green energy cells for water splitting is discussed in detail. We hoped this review can guide people to pay more attention to the development of green energy system to generate pollution-free H 2 energy, which will realize the whole process of H 2 production with low cost, pollution-free and energy sustainability conversion.

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Section: Water Splitting Driven By a Triboelectric Nanogeneratormentioning

confidence: 99%

Water Splitting: From Electrode to Green Energy System

et al. 2020

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“…The task of improving the performance of a TEG is often related to the optimizing its leg geometry. By leg geometry, it implies the thermoelement area ratio

((), \frac{A_{n}}{A_{p}})

of the n‐ and p‐type legs or the area ratio of the hot and cold junction

((), \frac{A_{h}}{A_{c}}) .

Geometric optimization of TEG involves finding the number of thermocouple and height of leg that result in maximum electrical output. Various research works have been conducted to improve the performance of TEG by changing the TE leg geometry.…”

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 economy of the proposed hybrid cooling system was not considered, but the design has potential for further improvements. The advancements in the effective management of PV panel cooling systems by thermoelectric generators were discussed in work [32]. The integration issues between PV and TEG systems were discussed in detail and performance improvements for different photovoltaic technologies as well as application areas.…”

Section: Thermoelectric Coolingmentioning

confidence: 99%

THERMAL MANAGEMENT OF SILICON PHOTOVOLTAIC PANELS: A REVIEW (In the press)

Nižetić¹

2020

REFFIT

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Photovoltaic (PV) technologies represent a key role in the ongoing energy transition towards the decarbonisation of convectional power systems and to reduce the harmful population impact to environment. Nowadays, the majority of market available photovoltaic PV technologies are silicon based with a usual energy conversion efficiency of less than 20%. The major drawbacks of the widely used silicon PV technologies are related to performance degradation due to aging as well as performance drops that occur during periods of elevated operating temperatures. In order to improve performance, as well as the lifetime of the PV systems, various cooling techniques have been investigated in the last two decades. The main goal of the specific cooling approaches for PV panels is to ensure efficient thermal management, as well as economic suitability. In this review paper, different cooling strategies are categorized, discussed and thoroughly elaborated in order to provide deep insight related to an expected performance improvement and economic viability. The main results of this review indicate that the cooling approaches for PVs can ensure a performance improvement ranging from about 3% up to 30%, depending if passive or active cooling approaches are applied. The main results also indicate that the economic viability as well as environmental suitability of the specific cooling approaches is not sufficiently discussed in the existing research literature.

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Advancements in thermoelectric generators for enhanced hybrid photovoltaic system performance

Cited by 139 publications

References 158 publications

Water Splitting: From Electrode to Green Energy System

Water Splitting: From Electrode to Green Energy System

A review on the performance of photovoltaic/thermoelectric hybrid generators

THERMAL MANAGEMENT OF SILICON PHOTOVOLTAIC PANELS: A REVIEW (In the press)

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