Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator
This paper introduces a design of an annular water-cooled automotive exhaust-based thermoelectric generator (TEG). A comprehensive numerical model of TEG system is established to investigate the relationship between automotive exhaust temperature and coolant flow rate. Through numerical simulations,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-04-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24002879 |
| _version_ | 1827299285381677056 |
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| author | Weiqi Zhou Xiao Tang Jiahao Zhu |
| author_facet | Weiqi Zhou Xiao Tang Jiahao Zhu |
| author_sort | Weiqi Zhou |
| collection | DOAJ |
| description | This paper introduces a design of an annular water-cooled automotive exhaust-based thermoelectric generator (TEG). A comprehensive numerical model of TEG system is established to investigate the relationship between automotive exhaust temperature and coolant flow rate. Through numerical simulations, it is demonstrated that the implementation of this device can effectively enhance the temperature uniformity at the hot side of the heat exchanger, consequently increasing the TEG's power output. After introducing the annular water-cooled radiator, the temperature uniformity of the thermoelectric module increased by 18.8%. By utilizing the numerical simulation outcomes alongside empirical formulas, calculations for the pump power consumption, maximum output power, and maximum net output power of the thermoelectric module (TEM) are conducted. The maximum net output power can be increased by 3.30%–53.24% by controlling the coolant flow rate. As a result, a relationship curve depicting the average temperature difference between the hot and cold ends of the TEM, in relation to the optimum coolant flow rate, is obtained. This relationship curve serves as a valuable tool for adjusting the radiator's coolant flow rate and augmenting the TEG's net output power, ultimately achieving the objective of heightening the power generation efficiency of the TEG. |
| first_indexed | 2024-04-24T15:30:58Z |
| format | Article |
| id | doaj.art-b629c6a446db47419bad7fc270e0f34f |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-24T15:30:58Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-b629c6a446db47419bad7fc270e0f34f2024-04-02T04:15:07ZengElsevierCase Studies in Thermal Engineering2214-157X2024-04-0156104256Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generatorWeiqi Zhou0Xiao Tang1Jiahao Zhu2Corresponding author.; Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, ChinaAutomotive Engineering Research Institute, Jiangsu University, Zhenjiang, ChinaAutomotive Engineering Research Institute, Jiangsu University, Zhenjiang, ChinaThis paper introduces a design of an annular water-cooled automotive exhaust-based thermoelectric generator (TEG). A comprehensive numerical model of TEG system is established to investigate the relationship between automotive exhaust temperature and coolant flow rate. Through numerical simulations, it is demonstrated that the implementation of this device can effectively enhance the temperature uniformity at the hot side of the heat exchanger, consequently increasing the TEG's power output. After introducing the annular water-cooled radiator, the temperature uniformity of the thermoelectric module increased by 18.8%. By utilizing the numerical simulation outcomes alongside empirical formulas, calculations for the pump power consumption, maximum output power, and maximum net output power of the thermoelectric module (TEM) are conducted. The maximum net output power can be increased by 3.30%–53.24% by controlling the coolant flow rate. As a result, a relationship curve depicting the average temperature difference between the hot and cold ends of the TEM, in relation to the optimum coolant flow rate, is obtained. This relationship curve serves as a valuable tool for adjusting the radiator's coolant flow rate and augmenting the TEG's net output power, ultimately achieving the objective of heightening the power generation efficiency of the TEG.http://www.sciencedirect.com/science/article/pii/S2214157X24002879Thermoelectric generator (TEG)Thermoelectric module (TEM)Numerical analysisCoolant flow rateTemperature uniformity |
| spellingShingle | Weiqi Zhou Xiao Tang Jiahao Zhu Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator Case Studies in Thermal Engineering Thermoelectric generator (TEG) Thermoelectric module (TEM) Numerical analysis Coolant flow rate Temperature uniformity |
| title | Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator |
| title_full | Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator |
| title_fullStr | Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator |
| title_full_unstemmed | Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator |
| title_short | Design and optimal coolant flow rate analysis of an annular water-cooled automotive exhaust-based thermoelectric generator |
| title_sort | design and optimal coolant flow rate analysis of an annular water cooled automotive exhaust based thermoelectric generator |
| topic | Thermoelectric generator (TEG) Thermoelectric module (TEM) Numerical analysis Coolant flow rate Temperature uniformity |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24002879 |
| work_keys_str_mv | AT weiqizhou designandoptimalcoolantflowrateanalysisofanannularwatercooledautomotiveexhaustbasedthermoelectricgenerator AT xiaotang designandoptimalcoolantflowrateanalysisofanannularwatercooledautomotiveexhaustbasedthermoelectricgenerator AT jiahaozhu designandoptimalcoolantflowrateanalysisofanannularwatercooledautomotiveexhaustbasedthermoelectricgenerator |