Comparative Analysis and Integrated Methodology for the Electrical Design and Performance Evaluation of Thermoelectric Generators (TEGs) in Energy Harvesting Applications

被引:1
作者
Ando Junior, Oswaldo Hideo [1 ,2 ,3 ,4 ]
da Silva, Eder Andrade [1 ,2 ]
Lira, Emerson Rodrigues de [4 ]
Degiorgi, Sergio Vladimir Barreiro [4 ]
Carmo, Joao Paulo Pereira do [5 ]
机构
[1] Fed Rural Univ Pernambuco UFRPE, Acad Unit Cabo St Agostinho UACSA, Res Grp Energy & Energy Sustainabil GPEnSE, BR-52171900 Recife, Brazil
[2] Fed Univ Latin Amer Integrat UNILA, Interdisciplinary Postgrad Program Energy & Sustai, BR-85870650 Foz Iguacu, Brazil
[3] Fed Rural Univ Pernambuco UFRPE, Postgrad Program Energy Syst Engn PPGESE, Acad Unit Cabo St Agostinho UACSA, BR-52171900 Recife, Brazil
[4] Fed Rural Univ Pernambuco UFRPE, Postgrad Program Phis Engn PPGENGFIS, Acad Unit Cabo St Agostinho UACSA, BR-52171900 Recife, Brazil
[5] Univ Sao Paulo, Dept Elect Engn SEL, Grp Metamat Microwaves & Opt GMeta, BR-05508220 Butanta, Brazil
关键词
seebeck coefficient; multi-string electrical arrangement; maximum power point tracking; simulink model; industrial processes; waste recovery energy; OPTIMIZATION; SYSTEM;
D O I
10.3390/en17205176
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This study presents a comparative analysis of the accuracy of different methodologies for the design and performance evaluation of thermoelectric generators (TEGs), using analytical, computational numerical, and experimental approaches. TEGs are promising devices for capturing waste energy in industrial processes, converting waste heat into electrical energy and contributing to energy sustainability. However, the efficiency of TEGs is a significant challenge due to their low conversion rates. To address this challenge, three different methodologies were developed and systematically compared. Analytical Model: Developed for the electrical design of thermoelectric micro generators, using theoretical performance data and industrial temperature gradients. This method offers a robust theoretical view but may not capture all practical variables. Computational model in Simulink/MATLAB: Created and validated to consider the variation of the Seebeck coefficient and the internal resistance of thermoelectric modules with temperature. This model provides an accurate simulation of operating conditions but depends on the accuracy of the input parameters. Experimental Multi-string Electrical Arrangement Prototype: This involved the design and construction of a prototype followed by experimental tests to validate its performance. This method provides valuable empirical data but can be limited by the complexity and cost of the experiments. The results show that each methodology has specific advantages and limitations, offering valuable insights for the development of more efficient TEG systems. The comparison of analytical, numerical, and experimental methods revealed differences in accuracy and efficiency, highlighting the importance of an integrated approach to TEG design. This study lays a solid foundation for future research and practical applications in the field of industrial residual energy harvesting.
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页数:23
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