Effect of various leg geometries on thermo-mechanical and power generation performance of thermoelectric devices

Erturun, Ugur; Erermis, Kaan; Mossi, Karla

doi:10.1016/j.applthermaleng.2014.07.027

Cited by 139 publications

(83 citation statements)

References 39 publications

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“…The effect of various leg geometries on thermo-mechanical and power generation performance of thermoelectric devices are investigated by modelling leg geometries and analysed using finiteelement method [32]. Thermal stresses in the legs, power outputs, temperature distributions and conversion efficiencies are evaluated and the results show that significant differences in sizes and distributions of the thermal stresses in the legs occur due to varying leg geometries.…”

Section: Important Parameters Of Te Modulementioning

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

501

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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Section: Important Parameters Of Te Modulementioning

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

501

208

View full text Add to dashboard Cite

show abstract

“…In addition, there were two optimal leg lengths which corresponded to the maximum output power and the maximum conversion efficiency, respectively. Effect of various leg geometries on thermo-mechanical and power generation performance of thermoelectric devices was investigated by Erturun et al [11]. They demonstrated that significant differences in magnitudes and distributions of the thermal stresses were developed in the legs due to changing leg geometries.…”

Section: Introductionmentioning

confidence: 98%

“…Considerable research studies were carried out to examine thermoelectric generation and thermal system characteristics [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Thermal analysis of a segmented thermoelectric generator was carried out by Ming et al [3].…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric generator performance analysis: Influence of pin tapering on the first and second law efficiencies

Yilbaş

Ali

2015

Energy Conversion and Management

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“…Based on a finite element method, Erturun et al [18] investigated the power generation performances of TE devices with various TE leg geometries (including rectangular prism, trapezoidal prism, cylindrical and octagonal prism). They reported that the power outputs just are slightly affected by geometrical differences due to the same Seebeck coefficients, temperature gradients and heights of the TE leg.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of thermoelectric performance of linear-shaped thermoelectric generators under transient heat supply

Jia

Wang

Gao

2017

Energy

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Effect of various leg geometries on thermo-mechanical and power generation performance of thermoelectric devices

Cited by 139 publications

References 39 publications

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

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

Thermoelectric generator performance analysis: Influence of pin tapering on the first and second law efficiencies

Numerical simulation of thermoelectric performance of linear-shaped thermoelectric generators under transient heat supply

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