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http://dx.doi.org/10.3795/KSME-B.2013.37.3.243

Study of Thermoelectric Generator with Various Thermal Conditions for Exhaust Gas from Internal Combustion Engine using Numerical Analysis  

In, Byung Deok (School of Mechanical Engineering, Hanyang Univ.)
Lee, Ki Hyung (School of Mechanical Engineering, Hanyang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.3, 2013 , pp. 243-248 More about this Journal
Abstract
Internal combustion engines typically expel 30%-40% of the energy supplied by fuel to the environment through their exhaust system. Therefore, further significant improvements in the thermal efficiency of IC engines are possible by recovering the waste heat from the engine exhaust gas. With this fact in mind, a numerical simulation was carried out to investigate the potential of using thermoelectric generation with an internal combustion engine for waste heat recovery. Physical parameters such as the exhaust temperature and mass flow rate were evaluated in the exhaust system, and the optimum location for inserting a thermoelectric generator (TEG) into the system was determined. The TEG will be located in the exhaust system and will use the energy flow between the warmer exhaust gas and the external environment. The optimum position of the temperature distribution and the TEG performance were predicted through numerical analysis. The experimental results obtained showed that the power output significantly increases with the temperature difference between the cold and hot sides of the TEG.
Keywords
Numerical Analysis; Thermoelectric Module; Seebeck Coefficient; Figure Of Merit;
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