Theoretical and experimental estimation of limiting input heat flux for thermoelectric power generators with passive cooling

Date, Ashwin; Date, Abhijit; Dixon, Chris; Singh, Randeep; Akbarzadeh, Aliakbar

doi:10.1016/j.solener.2014.10.043

Cited by 48 publications

(22 citation statements)

References 25 publications

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“…al [12]. The voltage output was then plotted against ΔT at specific points to find the Seebeck coefficient of the device which was the slope of the linear fit and was valued at 0.022 V/K which is comparable to that found in literature [17], 0.0119 V/K, for the corresponding model of the Peltier device.…”

Section: Discussionsupporting

confidence: 64%

Experimental Study of Thermoelectric Conversion Efficiency and Cold Side Thermal Management

et al. 2020

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Thermoelectric generator (TEG) while offering the advantage of operational reliability are constrained by limited efficiencies. This paper, which is from an undergraduate research project, focusses on the contribution of cold side thermal management of commercially available thermoelectric generators towards the thermal to electrical conversion efficiency for a range of hot side temperatures. Electric heating elements are used to vary the heat flux to the TEG while conventional active and passive methods employing air and water as a medium are used for dissipating heat from the cold side of TEGs. Both thermal and electrical performance parameters of the TEGs are recorded for various ambient conditions in an indoor facility corresponding to naturally occurring wind conditions. At the end, the utility and effectiveness of the cooling methods are quantified for the range of operating temperatures.

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Section: Discussionsupporting

confidence: 64%

Experimental Study of Thermoelectric Conversion Efficiency and Cold Side Thermal Management

et al. 2020

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“…The wind speed was varied between 1.1 m/s and 3 m/s, obtained from data collected from previous studies at Universiti Malaysia Pahang (UMP). Therefore, the cooling method was considered as operating under natural convection, which were simulated using the wind tunnel [9].…”

Section: P= I Xv (1)mentioning

confidence: 99%

Study on the Performance of a Thermo-Electric Generation Model with Two Different Materials of Heat Pipe-Heat Sink

et al. 2018

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Heat sink lack of design is one reason that negatively affects the performance of thermoelectric modules. As compared to conventional cooling systems equipped with thermoelectric generators (TEG), heat pipe heat sink has various points of interest. Heat pipe heat sink is the most appropriate heat exchanger for medium temperature range under 300 °C. This paper demonstrates the effect of different materials of heat pipe-heat sink on the TEG performance. Two types of heat sinks were tested with TEG, one made from copper while the other from aluminium. The aim is to improve power output of TEG by an appropriate material of fins and metal block with heat pipes. The prototype was experimentally tested and the TEG cold side temperature, voltage and current were measured in both conditions, natural and forced convection. It was found that highest power output was achieved using copper heat sink in the case of forced convection, being 7.7 W whereas, lowest power output was obtained using aluminium heat sink in the case of natural convection, being 2.67 W. It is evident that copper heat sink is more effective than aluminium heat sink in terms of power output. However, both types of heat sink needs optimisation in terms of power output, cost and economic efficiency, while the results shown in this paper are just in terms of power output.

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“…They demonstrated that significant differences in magnitudes and distributions of the thermal stresses were developed in the legs due to changing leg geometries. The thermoelectric power generation using a passive cooling system was studied by Date et al [12]. They introduced a theoretical model to determine the maximum theoretical heat flux capacity of thermoelectric generator and verified the findings with the experimental data.…”

Section: Introductionmentioning

confidence: 97%

“…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%

“…They introduced a theoretical model to determine the maximum theoretical heat flux capacity of thermoelectric generator and verified the findings with the experimental data. Thermal characteristics of a combined thermoelectric generator and refrigeration cycle were studied by Yilbas and Sahin [12]. They demonstrated that the location of the thermoelectric generator in between the condenser and the evaporator decreased coefficient of performance of the combined system; however, the location of thermoelectric device in between the condenser and its ambient enhanced coefficient of performance of the combined system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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Theoretical and experimental estimation of limiting input heat flux for thermoelectric power generators with passive cooling

Cited by 48 publications

References 25 publications

Experimental Study of Thermoelectric Conversion Efficiency and Cold Side Thermal Management

Experimental Study of Thermoelectric Conversion Efficiency and Cold Side Thermal Management

Study on the Performance of a Thermo-Electric Generation Model with Two Different Materials of Heat Pipe-Heat Sink

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

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