Serwis Informacyjny "Mechatronika"


kategoria: publikacja
dział: mechatronika pojazdowa

Present- day development of power transmission systems, especially the ones based on combustion engines, is trying to cope with  the issue of improving the energy efficiency  of energy processing systems. One of the directions is to use the techniques of thermal energy recovery from an engine’s  exhaust system. Vast part of the energy produced while burning the air- fuel mixture is lost in the cooling and exhaust systems. Research in this area was conducted by numerous teams, both abroad and in Poland, while focusing on use of Peltirea cells. The results of their research demonstrated small efficiency of these cells. In this paper the authors have focused on modifications of the exhaust system in order to  improve heat  exchange between the exhaust system’s elements and TEG.

The research was conducted while using the ECOTEC 1.8 liter engine from Opel, the X18XE model. The engine was installed in a testbed, in the mechatronic lab at the Faculty of Automotive and Construction Machinery Engineering (SIMR) of Warsaw University of Technology. Spartan HE923 radiators were installed on  the cold end of the module. The paper presents the results of the research related to interworking of TEG’s with the exhaust system’s heat-generating elements of various shapes.

The paper reviews the energy efficiency of TEG depending on diverse parameters of gas flow. A parallel system has been assumed (controlled stream and pressure of the flowing exhaust gases without any interference as regards the speed of the of combustion engine).

The factor-related experiment accounts for the influence that the pressure and temperature difference, depending on the volume and discharge of exhaust fumes, have on the efficiency of TEG for the same temperature.

The results of the experiment are presented in the last section of the article.
rok wydania: 2012
wydawnictwo: Journal of KONES Powertrain and Transport, ISSN: 1231-4005, Vol. 19, No. 3, 2012, pp. 253-261
autorzy: Lubikowski K., Radkowski S., Szczurowski K., Wikary M.


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