Experiment on thermal uniformity and pressure drop of exhaust heat exchanger for automotive thermoelectric generator

Lü, Hongliang; Wu, Ting; Bai, Shengqiang; Xu, Kangcong; Huang, Yingjie; Gao, Weimin; Yin, Xianglin; Chen, Lidong

doi:10.1016/j.energy.2013.02.067

Cited by 84 publications

(32 citation statements)

References 21 publications

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“…A study [128] is completed by combining exhaust heat exchanger with muffler in the forms of 1-inlet 2-outlet, 2-inlet 2-outlet and the baseline empty cavity. The results indicate that the pressure drops of 1-inlet 2-outlet and 2-inlet 2-outlet are 165% and 318% more than that of empty cavity for inlet temperature of 100 o C and mass flow rate of 131 kg/h.…”

Section: Other Methods To Improve the Performance Of Thermoelectric Dmentioning

confidence: 99%

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Twaha

Zhu

Yan

et al. 2016

Renewable and Sustainable Energy Reviews

503

208

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Abstract:Thermoelectric (TE) technology is regarded as alternative and environmentally friendly technology for harvesting and recovering heat which is directly converted into electrical energy using thermoelectric generators (TEG). Conversely, Peltier coolers and heaters are utilized to convert electrical energy into heat energy for cooling and heating purposes The main challenge lying behind the TE technology is the low efficiency of these devices mainly due to low figure of merit (ZT) of the materials used in making them as well as improper setting of the TE systems. The objective of this work is to carry out a comprehensive review of TE technology encompassing the materials, applications, modelling techniques and performance improvement. The paper has covered a wide range of topics related to TE technology subject area including the output power conditioning techniques. The review reveals some important critical aspects regarding TE device application and performance improvement. It is observed that the intensified research into TE technology has led to an outstanding increase in ZT, rendering the use TE devices in diversified application a reality. Not only does the TE material research and TE device geometrical adjustment contributed to TE device performance improvement, but also the use of advanced TE mathematical models which have facilitated appropriate segmentation TE modules using different materials and design of integrated TE devices. TE devices are observed to have booming applications in cooling, heating, electric power generation as well as hybrid applications. With the generation of electric energy using TEG, not only does the waste heat provide heat source but also other energy sources like solar, geothermal, biomass, infra-red radiation have gained increased utilization in TE based systems.However, the main challenge remains in striking the balance between the conflicting parameters; ZT and power factor, when designing and optimizing advanced TE materials.Hence more research is necessary to overcome this and other challenge so that the performance TE device can be improved further.

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Section: Other Methods To Improve the Performance Of Thermoelectric Dmentioning

confidence: 99%

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Twaha

Zhu

Yan

et al. 2016

Renewable and Sustainable Energy Reviews

503

208

View full text Add to dashboard Cite

show abstract

“…According to the review of previous studies for exhaust heat recovery by TEG, it is found that these studies mainly focused on the steady-state TEG performance [16][17][18][19][20][21]. However, there are few studies for the transient behavior of TEG in vehicle dynamic driving conditions and driving cycles [25].…”

Section: Introductionmentioning

confidence: 96%

“…Kim et al [19] developed a TEG system with the engine coolant of light-duty vehicles as heat source, and the output power is about 75 W. In their study, the conventional radiators of the existing water cooling system were replaced by the TEG system. Lu et al [20] investigated the effects of design and operating conditions of muffler, heat exchanger and exhaust pipe. The threeway catalytic converter in the exhaust system for waste heat http://dx.doi.org/10.1016/j.enconman.2015.03.002 0196-8904/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Effect of vehicle driving conditions on the performance of thermoelectric generator

Diao

et al. 2015

Energy Conversion and Management

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“…Meng et al attempted to design an air‐cooling heat recovery device and analyzed various parameters such as heat sink geometry, wastewater flow rate, and thermoelectric module geometry. Lu et al developed a test bench to compare thermal uniformity and pressure drop characteristics in an exhaust heat recovery chamber coupled with a muffler. The design featured the concept of increasing hydraulic disturbance to increase heat transfer for higher recovery efficiency.…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of thermoelectric waste heat reutilization system-possible industrial application

et al. 2018

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Summary The current article discussed the detail design and development of an experimental test rig to derive usable energy by utilizing the waste heat energy through a heat exchanger made of Bi2Te3 material. The accuracy including the efficiency of the fabricated device is demonstrated further by verifying the associated parameter through a simulation model (commercial finite element package, ANSYS 15.0). To imitate the waste hot air from the industry is achieved via a heat gun and fed to the test rig for the generation of thermoelectric power. The simulation model accuracy has been demonstrated by juxtaposing the associated experimental data and computational readings. Subsequently, the feasibility and optimum range of design parameters are established by comparing the experimental and the simulation data (triggered temperature difference, voltage output, and heat flux) generated at the interface of the thermoelectric power generators. In addition, the coefficient of determination (R2) value has been evaluated statistically and verified with the current experimental results for the demonstration of the relevancy. The statistical study shows the existence of the correlation between the current experimental and the simulation model. Also, the experimental result indicates the possible implementation of the newly developed system for the recovery from the waste heat either the automobile exhaust or any other kind of dissipated heat from the industries.

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Experiment on thermal uniformity and pressure drop of exhaust heat exchanger for automotive thermoelectric generator

Cited by 84 publications

References 21 publications

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

A comprehensive review of thermoelectric technology: Materials, applications, modelling and performance improvement

Effect of vehicle driving conditions on the performance of thermoelectric generator

Design and fabrication of thermoelectric waste heat reutilization system-possible industrial application

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