Theoretical, experimental and numerical diagnose of critical power point of thermoelectric generators

Chen, Min; Gao, Xin

doi:10.1016/j.energy.2014.10.021

Cited by 18 publications

(7 citation statements)

References 29 publications

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“…The input heat rate to the P and N legs can be calculated by (20) and (21) where the total input heat rate is H total ¼ H p þ H n . Therefore the total heat flux needed to operate the TEG at its highest efficiency is:…”

Section: Calculation Type IImentioning

confidence: 99%

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Simple engineering design for complex thermoelectric generators based on reduced current approach

Wijesekara

Rezania

Rosendahl

2015

Energy

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Section: Calculation Type IImentioning

confidence: 99%

“…The used optimization tool is a simplified conjugate-gradient algorithm. Importance of the critical power point when connecting the arrays of TE modules is represented by Chen et al [21]. Effects of the heat reservoirs, and the importance of analyze of the thermoelectric system is discussed by Favarel et al [22].…”

Section: Introductionmentioning

confidence: 99%

Simple engineering design for complex thermoelectric generators based on reduced current approach

Wijesekara

Rezania

Rosendahl

2015

Energy

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“…Recently, some hybrid systems consist of photovoltaicethermoelectric have been developed. Hybrid systems with different photovoltaic cells were studied, including crystalline silicon photovoltaic cell, silicon thinfilm photovoltaic cell, polymer photovoltaic cell [13,14].…”

Section: Introductionmentioning

confidence: 99%

Magnetostrictive vibration energy harvesting using strain energy method

Mohammadi

Esfandiari

2015

Energy

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“…The advantage of this kind of system is the high temperature heat source provided by high concentration ratio. However, non-uniform temperature distribution in the receiver is an issue which may cause temperature mismatch of TEG arrays [30,31]. Some studies have been conducted to investigate this issue in the traditional solar thermal engineering systems [32,33].…”

Section: Combination Of Teg and Solar Engineeringmentioning

confidence: 99%

“…Both of the theoretical and experimental studies of temperature mismatch have been conducted [30,31]. A single TEM is electrically described as a voltage source with a resistor serially connected.…”

Section: Temperature Mismatch Among Tems Arraysmentioning

confidence: 99%

Experimental study and modeling of a thermoelectric generator heated by concentrated solar energy

Wei¹

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The studies of renewable energy have drawn a lot of attention due to the increasing serious energy and environment crisis. Among them, thermoelectric generator is an attractive topic which could directly transfer heat energy to electricity through a compact module. The heat-electricity conversion is possible under residential conditions. In this study, a solar thermoelectric generator (STEG) combined with parabolic concentrator is designed and a simplified prototype was investigated experimentally. Heat transfer oil layer between inner and outer shells is employed to homogenize the temperature filed in circumferential direction and enhance the heat transfer. Flexible heating plates were used to control and simulate the input power in the experiments. The temperature field in oil layer and inner shell were evaluated through experimental studies. A computational model based on 2-D differential equations and standard simplified thermoelectric model has been developed. Through experiments, temperature homogenization and heat transfer enhancement effect by oil layer have been observed. The convection heat transfer coefficient at steady state was estimated to be 320 W/(m 2 • K) through the combination of model and experimental data. An iteration method based on the computational model was employed to predict the system output. Through closed-circuit experiments, the output power of 0.3W, 0.33W and 0.26W were obtained in bottom, middle and top part respectively in critical power points. And the iteration method shows good agreement with the experimental results. Through simulation, it is found that adjusting the number and distribution pattern of TEMs could further raise the output power and eliminate the temperature mismatch.

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Theoretical, experimental and numerical diagnose of critical power point of thermoelectric generators

Cited by 18 publications

References 29 publications

Simple engineering design for complex thermoelectric generators based on reduced current approach

Simple engineering design for complex thermoelectric generators based on reduced current approach

Magnetostrictive vibration energy harvesting using strain energy method

Experimental study and modeling of a thermoelectric generator heated by concentrated solar energy

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