Influence of leg sizing and spacing on power generation and thermal stresses of thermoelectric devices

Erturun, Ugur; Erermis, Kaan; Mossi, Karla

doi:10.1016/j.apenergy.2015.08.112

Cited by 88 publications

(40 citation statements)

References 37 publications

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“…There are very few studies reported to date on the geometrical characteristics and device structures of a thermoelectric generator. [207][208][209][210][211] Vertical configuration is the most commonly employed structure for bulk generators (nearly 56.9%), as shown in Figure 6A. Conversely, for the thick and thin film generators, the planar structure is mostly preferred (about 32.4%), and this is proven in Figure 6B.…”

Section: Analyses In Device Structure Implementationsmentioning

confidence: 84%

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Methodological reviews and analyses on the emerging research trends and progresses of thermoelectric generators

2018

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Summary Thermoelectric generator is among the earliest initiated electricity‐harvesting methods. It is a very potential power harvester that can convert wasteful thermal energy into electricity. However, it often suffers from low energy conversion rate due to its inconsistent heat source, inefficient thermoelectric material (or thermoelement) performance, and incompetent structural issues. Progressively for the first time, detailed methodological surveys and analyses are made for bulk, thick, and thin films in this review. This is in order to accommodate better insights and comprehensions on the emerging trends and progresses of thermoelectric generators from 1989 to 2017. The research interests in thermoelectric generators have started back in 1989, and have continuously experienced emerging progresses in the number of studies over the last years. The methodological reviews and analyses of thermoelectric generator showed that almost 46.6% of bulk and 46.1% of thick and thin film research works, respectively, are actively progressed in 2014 to 2017. Nearly 86.2% of bulk and 44.1% of thick and thin film thermoelectric generators are realizing in between 0.001 and 4 μW cm−2 K−2, while 43.1% of thick and thin films are earning among 10−6 to 0.001 μW cm−2 K−2. The highest achievement made until now is 2.5 W cm−2 at a temperature difference of 140 K and thermoelectric efficiency factor of 127.55 μW cm−2 K−2. This achievement remarked positive elevation for the field and interest in thermoelectric power generation. Consecutively, the research trends of fundamental devices' structure, thermoelement, fabrication, substrate, and heat source characteristics are analyzed too, along with the desired improvement highlights for the applications of thermoelectric generators.

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Section: Analyses In Device Structure Implementationsmentioning

confidence: 84%

“…There are very few studies reported to date on the geometrical characteristics and device structures of a thermoelectric generator . Vertical configuration is the most commonly employed structure for bulk generators (nearly 56.9%), as shown in Figure A.…”

Section: Progresses and Perceptions Of Research Trends In Thermoelectmentioning

confidence: 99%

Methodological reviews and analyses on the emerging research trends and progresses of thermoelectric generators

2018

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“…8,[11][12][13] For the designed flexible TEM, the structural of the PDMS encapsulation components may also affect the performance of the TEM. 8,[11][12][13] For the designed flexible TEM, the structural of the PDMS encapsulation components may also affect the performance of the TEM.…”

Section: Geometric Parameter's Effectmentioning

confidence: 99%

“…[11][12][13] Shi et al 11 investigated the influence of the geometric structure of thermoelectric legs on nominal power density of the TEG. [11][12][13] Shi et al 11 investigated the influence of the geometric structure of thermoelectric legs on nominal power density of the TEG.…”

Section: Introductionmentioning

confidence: 99%

“…The structural design of the thermoelectric legs has great effects on the heat transfer and output performance of the TEM, which has been confirmed. [11][12][13] Shi et al 11 investigated the influence of the geometric structure of thermoelectric legs on nominal power density of the TEG. The calculated results showed that increasing the variation of the cross-sectional area along the height of thermoelectric legs can reduce the nominal power density.…”

Section: Introductionmentioning

confidence: 99%

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Numerical modeling of the performance of thermoelectric module with polydimethylsiloxane encapsulation

et al. 2017

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Summary This paper presents a 2‐dimensional finite volume model to investigate the performance of thermoelectric module (TEM) with polydimethylsiloxane (PDMS) encapsulation. The voltage and temperature distributions of the TEM under 2 kinds of boundary conditions (constant cold‐side temperature and fixed convection heat transfer coefficient) are studied. To validate the developed model, 2 TEMs with or without PDMS encapsulation are fabricated, and the experimental tests are carried out. Both model predicted and experimentally measured results showed that using flexible PDMS as the encapsulation material for the TEM can lead majority heat flowing through thermoelectric legs and is beneficial for heat harvesting. The geometrical parameters' effects of the PDMS encapsulation and thermoelectric legs are analyzed. Results demonstrated that the usage of larger thermoelectric legs and smaller width of the PDMS encapsulation can generate greater temperature difference and hence improve the voltage of the TEM. Thus, the developed model could be applied for optimal structural design of the flexible TEM with highest performance for heat harvesting.

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Reliability and Durability of Thermoelectric Materials and Devices

XU,

SHANG,

LIANG

et al. 2023

Thermoelectric Micro/Nano Generators 2

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Influence of leg sizing and spacing on power generation and thermal stresses of thermoelectric devices

Cited by 88 publications

References 37 publications

Methodological reviews and analyses on the emerging research trends and progresses of thermoelectric generators

Methodological reviews and analyses on the emerging research trends and progresses of thermoelectric generators

Numerical modeling of the performance of thermoelectric module with polydimethylsiloxane encapsulation

Reliability and Durability of Thermoelectric Materials and Devices

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