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Numerical model as a tool for the optimisation of performance of a TEG generator for recovering waste heat from process gas.

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Title: Numerical model as a tool for the optimisation of performance of a TEG generator for recovering waste heat from process gas.
Authors: Górszczak, Piotr1 (AUTHOR) gorszcza@agh.edu.pl, Rywotycki, Marcin1 (AUTHOR), Fidura, Weronika1 (AUTHOR)
Source: International Journal of Advanced Manufacturing Technology. Nov2024, Vol. 135 Issue 5/6, p2325-2335. 11p.
Subjects: Direct energy conversion, Waste heat, Temperature distribution, Computational fluid dynamics, Energy consumption, Thermoelectric generators
Abstract: The article focuses on the issue of efficiently recovering waste heat from low-exergy process gases, which poses a significant challenge for improving energy efficiency in many industrial sectors. To address this problem, the application of a thermoelectric generator (TEG) has been proposed, allowing for the direct conversion of thermal energy into electrical energy. In the course of the research, experimental measurements were conducted for process gases at temperatures of 240 °C and 300 °C, along with CFD (computational fluid dynamics) simulations using Ansys Fluent 2023 R2 software. These simulations enabled the analysis of the temperature distribution in the TEG and the determination of the safe operating range of the device for process gas temperatures of 350 °C, 400 °C and 450 °C. The results obtained from both experiments and simulations demonstrated the effectiveness of the TEG in recovering waste heat from low-exergy gases. Additionally, these findings suggest the potential for scaling the solution to larger industrial systems, making TEG a promising technology for long-term sustainable development efforts. The developed numerical model proved to be a valuable tool in the design of TEG systems, allowing for the analysis and optimization of heat recovery systems. The innovation of the solution lies in the use of TEG for efficiently utilising waste heat from low-temperature gases, which holds significant potential for improving energy efficiency in processes where traditional energy recovery technologies are not effective. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Numerical model as a tool for the optimisation of performance of a TEG generator for recovering waste heat from process gas.
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  Data: <searchLink fieldCode="AR" term="%22Górszczak%2C+Piotr%22">Górszczak, Piotr</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> gorszcza@agh.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Rywotycki%2C+Marcin%22">Rywotycki, Marcin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fidura%2C+Weronika%22">Fidura, Weronika</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Nov2024, Vol. 135 Issue 5/6, p2325-2335. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Direct+energy+conversion%22">Direct energy conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Waste+heat%22">Waste heat</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Thermoelectric+generators%22">Thermoelectric generators</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The article focuses on the issue of efficiently recovering waste heat from low-exergy process gases, which poses a significant challenge for improving energy efficiency in many industrial sectors. To address this problem, the application of a thermoelectric generator (TEG) has been proposed, allowing for the direct conversion of thermal energy into electrical energy. In the course of the research, experimental measurements were conducted for process gases at temperatures of 240 °C and 300 °C, along with CFD (computational fluid dynamics) simulations using Ansys Fluent 2023 R2 software. These simulations enabled the analysis of the temperature distribution in the TEG and the determination of the safe operating range of the device for process gas temperatures of 350 °C, 400 °C and 450 °C. The results obtained from both experiments and simulations demonstrated the effectiveness of the TEG in recovering waste heat from low-exergy gases. Additionally, these findings suggest the potential for scaling the solution to larger industrial systems, making TEG a promising technology for long-term sustainable development efforts. The developed numerical model proved to be a valuable tool in the design of TEG systems, allowing for the analysis and optimization of heat recovery systems. The innovation of the solution lies in the use of TEG for efficiently utilising waste heat from low-temperature gases, which holds significant potential for improving energy efficiency in processes where traditional energy recovery technologies are not effective. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00170-024-14603-7
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        Text: English
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        Type: general
      – SubjectFull: Waste heat
        Type: general
      – SubjectFull: Temperature distribution
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      – SubjectFull: Computational fluid dynamics
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      – SubjectFull: Energy consumption
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      – SubjectFull: Thermoelectric generators
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      – TitleFull: Numerical model as a tool for the optimisation of performance of a TEG generator for recovering waste heat from process gas.
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              Text: Nov2024
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