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Appl. Sci. 2017, 7(6), 634; doi:10.3390/app7060634

Optimized Design of Thermoelectric Energy Harvesting Systems for Waste Heat Recovery from Exhaust Pipes

Chair of Automation and Energy Systems, Saarland University, Campus A5 1, 66123 Saarbruecken, Germany
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Academic Editors: Min-Wook OH and Byung Jin Cho
Received: 1 June 2017 / Revised: 14 June 2017 / Accepted: 15 June 2017 / Published: 19 June 2017
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Abstract

With the increasing interest in energy efficiency and resource protection, waste heat recovery processes have gained importance. Thereby, one possibility is the conversion of the heat energy into electrical energy by thermoelectric generators. Here, a thermoelectric energy harvesting system is developed to convert the waste heat from exhaust pipes, which are very often used to transport the heat, e.g., in automobiles, in industrial facilities or in heating systems. That is why a mockup of a heating is built-up, and the developed energy harvesting system is attached. To build-up this system, a model-based development process is used. The setup of the developed energy harvesting system is very flexible to test different variants and an optimized system can be found in order to increase the energy yield for concrete application examples. A corresponding simulation model is also presented, based on previously developed libraries in Modelica®/Dymola®. In the end, it can be shown—with measurement and simulation results—that a thermoelectric energy harvesting system on the exhaust pipe of a heating system delivers extra energy and thus delivers a contribution for a more efficient usage of the inserted primary energy carrier. View Full-Text
Keywords: energy efficiency; energy harvesting system; exhaust pipe; heating mockup; Modelica; thermoelectric generator; waste heat recovery energy efficiency; energy harvesting system; exhaust pipe; heating mockup; Modelica; thermoelectric generator; waste heat recovery
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Nesarajah, M.; Frey, G. Optimized Design of Thermoelectric Energy Harvesting Systems for Waste Heat Recovery from Exhaust Pipes. Appl. Sci. 2017, 7, 634.

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