Computational analysis and performance optimization of a solar thermoelectric generator

Kossyvakis, D.N.; Vossou, Clio; Provatidis, Christopher G.; Hristoforou, E.

doi:10.1016/j.renene.2015.03.026

Cited by 70 publications

(14 citation statements)

References 26 publications

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“…By considering constant temperature for both locations, Aalborg lost the lower ambient air temperature merit. Compared to similar studies [19,36], where optimum TC varies between 120 and 270, the proposed model shows the significantly different values for TC. In the original study on STEG [19] it is between 180 and 220.…”

Section: Optimization Resultscontrasting

confidence: 66%

Optimum Thermal Concentration of Solar Thermoelectric Generators (STEG) in Realistic Meteorological Condition

et al. 2018

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Global warming and air pollution concerns make renewable energies inevitable. Thermoelectric (TE) generators—solid-state devices which can convert thermal energy into electricity—are one of the candidates to capture the energy of the sun’s rays. Impact of high thermal on flat panel Solar Thermoelectric Generator (STEG) performance is known. In this research, a method to optimize thermal concentration in realistic terrestrial condition is introduced. To this end, a Simulink model of the STEG was developed, and module performance curves are determined. According to the results, Thermal concentration in realistic condition is more than double, compared to standard condition. The efficiency of the STEG was 4.5%, 6.8%, and 7.7% when the module figure of merit (ZT) was set to 0.8, 1.2, and 1.5, respectively, in locations with a higher ratio of diffused radiation (e.g., Aalborg and Denmark). These values corresponded to 70%, 106%, and 121% of the electrical power produced by parabolic troughs under the same meteorological condition. Furthermore, the possibility of controlling the ratio of heat and electricity in the cogeneration system is possible by controlling the heating flow or electric current. Heating flow can be controlled by the electrical current in STEG over 17 percent of its value in optimum condition.

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Section: Optimization Resultscontrasting

confidence: 66%

Optimum Thermal Concentration of Solar Thermoelectric Generators (STEG) in Realistic Meteorological Condition

et al. 2018

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“…Kossyvakis et al note that the implementation of TEG in solar energy conversion systems, as an alternative method for exploiting the solar potential, has attracted increasing attention [75].…”

Section: Power Generation With Teg Using Non-waste Heatmentioning

confidence: 99%

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Twaha

Zhu

Yan

et al. 2016

Renewable and Sustainable Energy Reviews

503

208

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Abstract:Thermoelectric (TE) technology is regarded as alternative and environmentally friendly technology for harvesting and recovering heat which is directly converted into electrical energy using thermoelectric generators (TEG). Conversely, Peltier coolers and heaters are utilized to convert electrical energy into heat energy for cooling and heating purposes The main challenge lying behind the TE technology is the low efficiency of these devices mainly due to low figure of merit (ZT) of the materials used in making them as well as improper setting of the TE systems. The objective of this work is to carry out a comprehensive review of TE technology encompassing the materials, applications, modelling techniques and performance improvement. The paper has covered a wide range of topics related to TE technology subject area including the output power conditioning techniques. The review reveals some important critical aspects regarding TE device application and performance improvement. It is observed that the intensified research into TE technology has led to an outstanding increase in ZT, rendering the use TE devices in diversified application a reality. Not only does the TE material research and TE device geometrical adjustment contributed to TE device performance improvement, but also the use of advanced TE mathematical models which have facilitated appropriate segmentation TE modules using different materials and design of integrated TE devices. TE devices are observed to have booming applications in cooling, heating, electric power generation as well as hybrid applications. With the generation of electric energy using TEG, not only does the waste heat provide heat source but also other energy sources like solar, geothermal, biomass, infra-red radiation have gained increased utilization in TE based systems.However, the main challenge remains in striking the balance between the conflicting parameters; ZT and power factor, when designing and optimizing advanced TE materials.Hence more research is necessary to overcome this and other challenge so that the performance TE device can be improved further.

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“…Several researches have been conducted to utilise the capability of thermoelectric generator (TEG) in order to generate the electrical power. Waste heat recovery from the cars [2][3][4], hot water or hot gas wastage from industries [5,6], heat from the sun irradiance or as part of hybrid system with other power generator devices [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis on the thermoelectric generator for the waste heat recovery of solar application

Zulkifli

Ilias

Abas

et al. 2017

AIP Conference Proceedings

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Computational analysis and performance optimization of a solar thermoelectric generator

Cited by 70 publications

References 26 publications

Optimum Thermal Concentration of Solar Thermoelectric Generators (STEG) in Realistic Meteorological Condition

Optimum Thermal Concentration of Solar Thermoelectric Generators (STEG) in Realistic Meteorological Condition

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Finite element analysis on the thermoelectric generator for the waste heat recovery of solar application

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