An experimental and Comparative performance of a thermal electric generator system using different heat exchanger fluids

IF 2.6 3区工程技术 Q2 ENGINEERING, MECHANICAL International Journal of Heat and Fluid Flow Pub Date : 2024-12-26 DOI:10.1016/j.ijheatfluidflow.2024.109732

Vinh Nguyen Duy , Tan Nguyen Tien , Dien Vu Minh , Quang Khong Vu

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Abstract

This study investigates the effects of the heat transfer performance of the fluids and their supplied pressure on TEGs’ performance. Consequently, experiments are conducted to evaluate the fluids as mentioned and the impact of various pressures on the bars from 2 to 6. In addition, the TEG’s working temperature is adjusted to adapt each fluid’s characteristics to find the maximum power point tracker. In general, the study’s results reveal that the power of the TEG significantly depends on the features of the fluids. Indeed, freshwater shows superior heat exchange efficiency compared to other liquids. When fixing the temperature of the cold side about 30 °C, the maximum power for the fluids corresponding to the different hot side temperature is 9.8, 30, 35, and 44 W, and for the fluids of water, ethylene glycol, lubricant, and glycerin, respectively. In addition, when the flow rate changes from 1 to 5 L/min, the voltage and output capacity of the thermoelectric device tend to increase gradually. In conclusion, working fluids’ boundary conditions and characteristics dramatically affect the TEG performance.

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来源期刊

International Journal of Heat and Fluid Flow 工程技术-工程：机械

CiteScore

5.00

自引率

7.70%

发文量

131

审稿时长

33 days

期刊介绍： The International Journal of Heat and Fluid Flow welcomes high-quality original contributions on experimental, computational, and physical aspects of convective heat transfer and fluid dynamics relevant to engineering or the environment, including multiphase and microscale flows. Papers reporting the application of these disciplines to design and development, with emphasis on new technological fields, are also welcomed. Some of these new fields include microscale electronic and mechanical systems; medical and biological systems; and thermal and flow control in both the internal and external environment.