Thermal Optimization of the Heat Exchanger in an Automotive Exhaust-Based Thermoelectric Generator

Deng, Yadong; Liu, X.; Chen, S.; Tong, Naiqiang

doi:10.1007/s11664-012-2359-0

Cited by 64 publications

(26 citation statements)

References 6 publications

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“…Structure of Heat Exchanger. The interior flow field structure of heat exchanger designed is made of red copper, as shown in Fig.4, there are several fins with different sizes and shapes inside it, and its dimensions are also provided, all the unit marked is millimeter [3]. Engine.…”

Section: Layout and Schematic Of Aetegmentioning

confidence: 99%

Study on the Compatibility between Heat Exchanger used in Automobile Exhaust Thermoelectric Generator and Engine

Quan¹,

Zhou²,

Huang³

2016

dteees

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Abstract.To enhance the compatibility between heat exchanger used in automobile exhaust thermoelectric generator (AETEG) and internal combustion engine, three different kinds of layouts among heat exchanger, muffle and catalytic converter are designed, and the effects on the temperature uniformity and temperature distribution of heat exchanger, the back pressure of engine are also analyzed respectively. The simulated results reveal that the sequential layout of three-way catalytic converter-heat exchanger-automotive exhaust muffle is the best choice, for it ensures the smallest back drops of engine, considerable temperature uniformity and relatively higher temperature distribution of heat exchanger on the same occasion, which improves the performance degradation of engine during the exhaust thermoelectric generation and provides guiding reference for the optimization of AETEG.

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Section: Layout and Schematic Of Aetegmentioning

confidence: 99%

Study on the Compatibility between Heat Exchanger used in Automobile Exhaust Thermoelectric Generator and Engine

Quan¹,

Zhou²,

Huang³

2016

dteees

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“…As shown in Fig. 6(b2) and (c2), between the isolated thermal and electrical circuits, no additional routine is required to control their information exchange and iteration for the current-related heat source terms, i.e., Peltier, Joule, and Thomson effects, i.e., _ S p;n ðIÞ ¼ I 2 r p;n À T p;n ðxÞ Á S p;n dx þ Va p;n À T p;n ðxÞ Á dxT p;n ðxÞI; (17) and for the temperature dependent V and R. By the TEM model, the corresponding relationship between the thermal/load boundary condition and the TEM performance parameters (power, efficiency, voltage and resistance) has been elegantly built and experimentally validated [24]. By upgrading the TEM level model to the system level [25], multiple TEMs spatially distributed in the thermal system can freely constitute an array of whatever configuration, including both series connection and parallel connection.…”

Section: Generic Numerical Diagnose By Spice Modelingmentioning

confidence: 99%

Theoretical, experimental and numerical diagnose of critical power point of thermoelectric generators

Chen¹,

Gao²

2014

Energy

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“…Hsiao et al [9] established a mathematical model of TEG modules applied to an automobile, but they simplified the TEG system into a thermal resistance network. Deng et al [20] focused on the structural design of heat exchange attached to the TEG module. Hashim et al [21] presented a model for the geometry optimisation of thermoelectric devices in a hybrid photovoltaic/thermoelectric (PV/TE) system.…”

Section: Introductionmentioning

confidence: 99%

Coupled simulation of a thermoelectric generator applied in diesel engine exhaust waste heat recovery

Xiao

Zhang

2020

Therm sci

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This work develops a heat transfer model of a thermoelectric generator to explore the coupled relationship between high temperature exhaust flows, structure, and the external cooling air. The coupled heat transfer results showed that the fins reached a uniform high temperature, for the rated speed, the average temperature is 474 K. The coupled design scheme of the thermoelectric generator tested by installing it in a 4-cylinder turbocharged Diesel engine exhaust system. Comparison of the test and simulation results showed that as engine speed increased, the inlet and outlet exhaust temperatures of the thermoelectric generator exhibited a parabolic trend increase. The cooling water outlet temperature and the top, middle, and bottom fin temperatures increased linearly, and the coupled model was verified. From idle speed to rated speed, the top, middle, and bottom fin temperatures increased from 458 K to 476 K, 417 K to 463 K, and 406 K to 449 K, respectively; the cooling water outlet temperature increased from 293.6 K to approximately 303 K. Hence, the thermoelectric components installed in fins can experience temperature differences of over 100 K, the heat transfer efficiency can increase which ensures consistent output performance of the thermoelectric generator based on coupled design between the heat exchanger and thermoelectric modules array column.

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Thermal Optimization of the Heat Exchanger in an Automotive Exhaust-Based Thermoelectric Generator

Cited by 64 publications

References 6 publications

Study on the Compatibility between Heat Exchanger used in Automobile Exhaust Thermoelectric Generator and Engine

Study on the Compatibility between Heat Exchanger used in Automobile Exhaust Thermoelectric Generator and Engine

Theoretical, experimental and numerical diagnose of critical power point of thermoelectric generators

Coupled simulation of a thermoelectric generator applied in diesel engine exhaust waste heat recovery

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