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Design of a Thermoelectric Generator for Waste HeatRecovery Application on a Drivable Heavy Duty Vehicle
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.ORCID iD: 0000-0003-0933-6945
2017 (English)In: SAE International Journal of Commercial Vehicles, ISSN 1946-391X, E-ISSN 1946-3928, ISSN 1946-3928, 2017-01-9178Article in journal (Refereed) Published
Abstract [en]

The European Union’s 2020 target aims to be producing 20 % of its energy from renewable sources by 2020, to achieve a 20 % reductionin greenhouse gas emissions and a 20 % improvement in energy efficiency compared to 1990 levels. To reach these goals, the energyconsumption has to decrease which results in reduction of the emissions. The transport sector is the second largest energy consumer in theEU, responsible for 25 % of the emissions of greenhouse gases caused by the low efficiency (<40 %) of combustion engines. Much workhas been done to improve that efficiency but there is still a large amount of fuel energy that converts to heat and escapes to the ambientatmosphere through the exhaust system. Taking advantage of thermoelectricity, the heat can be recovered, improving the fuel economy. Athermoelectric generator (TEG) consists of a number of thermoelectric elements, which advantageously can be built into modules,arranged thermally and electrically, in a way such that the highest possible thermal power can be converted into electrical power. In aunique waste heat recovery (WHR) project, five international companies and research institutes cooperated and equipped a fully drivableScania prototype truck with two TEGs. The entire system, from the heat transfer in the exchangers to the electrical power system, wassimulated, built and evaluated. The primary experimental results showed that approximately 1 kW electrical power could be generatedfrom the heat energy. In this paper the entire system from design to experimental results is presented.

Place, publisher, year, edition, pages
2017. 2017-01-9178
Keyword [en]
Thermoelectric generator, thermoelectricity, waste heat recovery, heavy duty vehicle, heat exchanger, power converter, internal combustion engine, power conditioning, vehicle exhaust, fuel economy
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering; Energy Technology; Transport Science
Identifiers
URN: urn:nbn:se:kth:diva-205225DOI: 10.4271/2017-01-9178OAI: oai:DiVA.org:kth-205225DiVA: diva2:1087812
Projects
Waste Heat recovery
Funder
Swedish Energy Agency, 76467
Available from: 2017-04-10 Created: 2017-04-10 Last updated: 2017-05-02Bibliographically approved

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