Dynamic performance of a polygonal thermoelectric generator using sickle-shaped fins for automotive application

被引:5
作者
Quan, Rui [1 ,2 ]
Li, Xuerong [1 ,2 ]
Yang, Zhiyu [1 ,2 ]
Feng, Zixiang [1 ]
Chang, Yufang [1 ,2 ]
Wan, Hang [1 ,2 ]
机构
[1] Hubei Univ Technol, Hubei Key Lab High efficiency Utilizat Solar Energ, Wuhan 430068, Peoples R China
[2] Hubei Univ Technol, Hubei Engn Res Ctr Safety Monitoring New Energy &, Wuhan 430068, Peoples R China
关键词
Thermoelectric generator system; Polygonal heat exchanger; Transient CFD-analysis model; Dynamic response; Output performance; PULSED HEAT POWER; WASTE HEAT; ELECTRICAL PERFORMANCE; OPTIMIZATION; RECOVERY; SYSTEM; MODEL;
D O I
10.1016/j.applthermaleng.2024.123985
中图分类号
O414.1 [热力学];
学科分类号
摘要
About 40 % of automotive fuel energy is lost in the form of heat through exhaust gas, the utilization of thermoelectric power generation technology presents a direct conversion of thermal to electric energy. A thermoelectric generator (TEG) system was designed in this study, comprising a polygonal heat exchanger using sickleshaped fins to enhance waste heat recycling. Additionally, a transient Computational Fluid Dynamics (CFD)analysis model was introduced to investigate its dynamic response utilizing the instantaneous variations of exhaust gas and coolant under the China Light-Duty Vehicle Test Cycle (CLTC) as transient inputs. The TEG system exhibits an average power output of 24.48 Wand a conversion efficiency of 1.12 % throughout the CLTC. After heating from ambient temperature to normal operating temperature, the power rises to 34.48 W and efficiency to 1.57 %, showing enhanced output performance. A comparison of the transient and steady-state analysis results indicates that the transient analysis reflects the hysteresis effect of heat transfer more accurately. Through experimental verification, the mean absolute percentage errors of the transient model are calculated to be 5.57 % and 8.28 % respectively, proving the credibility of the simulated results. The proposed dynamic model allows for evaluating the actual behavior of the TEG system under intricate driving cycles and offers a robust reference for TEG system optimization and its automotive applications in future.
引用
收藏
页数:18
相关论文
共 40 条
[1]   Potential for exhaust gas energy recovery in a diesel passenger car under European driving cycle [J].
Agudelo, Andres F. ;
Garcia-Contreras, Reyes ;
Agudelo, John R. ;
Armas, Octavio .
APPLIED ENERGY, 2016, 174 :201-212
[2]   Numerical study on the thermal and electrical performance of an annular thermoelectric generator under pulsed heat power with different types of input functions [J].
Asaadi, Soheil ;
Khalilarya, Shahram ;
Jafarmadar, Samad .
ENERGY CONVERSION AND MANAGEMENT, 2018, 167 :102-112
[3]   Numerical investigation on the performances of automotive thermoelectric generator employing metal foam [J].
Bai, WanRong ;
Yuan, XiaoHong ;
Liu, Xun .
APPLIED THERMAL ENGINEERING, 2017, 124 :178-184
[4]   Review of thermoelectric generation for internal combustion engine waste heat recovery [J].
Burnete, Nicolae Vlad ;
Mariasiu, Florin ;
Depcik, Christopher ;
Barabas, Istvan ;
Moldovanu, Dan .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2022, 91
[5]   Effect of pulsed heat power on the thermal and electrical performances of a thermoelectric generator [J].
Chen, Leisheng ;
Lee, Jaeyoung .
APPLIED ENERGY, 2015, 150 :138-149
[6]   A three-dimensional numerical model of thermoelectric generators in fluid power systems [J].
Chen, Min ;
Rosendahl, Lasse A. ;
Condra, Thomas .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2011, 54 (1-3) :345-355
[7]   Performance evaluation and improvement of thermoelectric generators (TEG): Fin installation and compromise optimization [J].
Chen, Wei-Hsin ;
Wang, Chi-Ming ;
Saw, Lip Huat ;
Hoang, Anh Tuan ;
Bandala, Argel A. .
ENERGY CONVERSION AND MANAGEMENT, 2021, 250
[8]   A comprehensive analysis of the performance of thermoelectric generators with constant and variable properties [J].
Chen, Wei-Hsin ;
Lin, Yi-Xian ;
Wang, Xiao-Dong ;
Lin, Yu-Li .
APPLIED ENERGY, 2019, 241 :11-24
[9]   Geometrical optimization of a thermoelectric device: Numerical simulations [J].
Ferreira-Teixeira, S. ;
Pereira, A. M. .
ENERGY CONVERSION AND MANAGEMENT, 2018, 169 :217-227
[10]  
Fluent A., Fluent 14.0 user's guide2011