Improving the efficiency of an exhaust thermoelectric generator based on changes in the baffle distribution of the heat exchanger

2020 ◽  
Author(s):  
Roozbeh Sheikh ◽  
Seifollah Gholampour ◽  
Hossein Fallahsohi ◽  
Marjan Goodarzi ◽  
Majid Mohammad Taheri ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Thermoelectric Generator

Efficiency of Microcombustion System with Thermoelectric Generator Combined with Countercurrent Heat Exchanger

2016 ◽  
Vol 685 ◽  
pp. 422-426
Author(s):  
Nikolai Belyakov ◽  
Igor Terletskii ◽  
Sergey Minaev ◽  
Sudarshan Kumar ◽  
Kaoru Maruta
Keyword(s):  
Heat Exchanger ◽  
Electric Power ◽  
Thermoelectric Generator ◽  
Combustion Products ◽  
Thermoelectric Device ◽  
Combustion Heat ◽  
Thermoelectric Element ◽  
Fresh Mixture ◽  
A Value ◽  
New System

A new system for converting combustion heat into electric power was proposed on the basis of countercurrent burner with thermoelectric element embedded in a wall separating incoming fresh mixture and combustion products. The wall serves as heat exchanger between combustion products and the fresh mixture. Numerical simulations showed that almost whole combustion heat may be transferred through the thermoelectric element in such system and the total thermal efficiency attained a value close to the conversion efficiency of the thermoelectric device itself.

The temperature distribution and electrical performance of fluid heat exchanger-based thermoelectric generator

2017 ◽  
Vol 118 ◽  
pp. 742-747 ◽  
Author(s):  
Wenkai Li ◽  
Jiangying Peng ◽  
Wanli Xiao ◽  
Honghao Wang ◽  
Jinsong Zeng ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Temperature Distribution ◽  
Thermoelectric Generator ◽  
Electrical Performance

Thermal Optimization of Exhaust-Based Thermoelectric Generator

2013 ◽  
Vol 743-744 ◽  
pp. 88-93 ◽  
Author(s):  
Ya Dong Deng ◽  
Shan Chen ◽  
Xun Liu
Keyword(s):  
Heat Exchanger ◽  
Thermal Performance ◽  
High Performance ◽  
Thermoelectric Generator ◽  
Thermal Characteristics ◽  
Interface Temperature ◽  
Cfd Simulations ◽  
Exhaust Heat ◽  
Internal Structures ◽  
Plate Shape

The potential for automotive exhaust heat based thermoelectric generator (TEG) has been increased with continuously advances in thermoelectric technology. The thermal performance of the heat exchanger in exhaust-based TEG was analyzed. In terms of interface temperature and thermal uniformity, the thermal characteristics of the heat exchangers with different internal structures, materials and thicknesses were discussed. CFD simulations and infrared experiments on a high-performance production engine with a dynamometer were carried out. It was proved that the plate-shape heat exchanger made of brass with internal baffles and the thickness of 3mm, obtained a relatively optimal thermal performance, and it will help to improve the thermal performance of the TEG.

Design of a Novel Heat Exchanger Using in Automobile Exhaust Thermoelectric Generator

2012 ◽  
Vol 430-432 ◽  
pp. 1428-1432
Author(s):  
Rui Quan ◽  
Xin Feng Tang ◽  
Shu Hai Quan ◽  
Ji Guang Wang
Keyword(s):  
Heat Exchanger ◽  
Temperature Distribution ◽  
Surface Temperature ◽  
Temperature Difference ◽  
Thermoelectric Generator ◽  
Thermoelectric Modules ◽  
Automobile Exhaust ◽  
Surface Temperature Distribution ◽  
Output Performance ◽  
Automobile Exhaust Thermoelectric Generator

The output performance of Automobile Exhaust Thermoelectric Generator (AETEG) is related to the temperature difference and electric connection topology of thermoelectric modules, in order to decrease the ring current among the thermoelectric modules in parallel with different temperature difference and enhance the output performance, a novel heat exchanger using in AETEG is designed in this paper. The interior structure of heat exchanger with fishbone is analysed, then its surface temperature distribution is simulated with ANSYS software and experimented with thermal imaging instrument. Both of the results show that the surface temperature distribution of the fishbone heat exchanger designed in this paper is more uniform in lateral direction and dispalys an obvious gradient in fore-and-aft surface, compared with the one of cavity designed before, the novel heat exchanger has overwhelming advantage in the output performance of AETEG, and the method adopted in this paper is feasible and practical.

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