Energy scavenging in a vehicle's exhaust system

• Autorzy: Lubikowski K. , Radkowski S. , Szczurowski K. , Wikary M.
• Języki publikacji: EN

Abstrakty

EN

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 litre 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.

Słowa kluczowe

EN

cogeneration of energy; exhaust system; thermoelectric generator

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2012
• Tom: Vol. 19, No. 3
• Strony: 253--261
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Lubikowski K.

autor

Radkowski S.

autor

Szczurowski K.

autor

Wikary M.

• Warsaw University of Technology, Institute of Vehicles Narbutta Street 84, 02-524 Warsaw, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Wojciechowski, K., Merkisz, J., Fuć, P., Lijewski, P., Schmidt, M., Zybała, R., Study of recovery of waste heat from exhaust of automotive engine, 5th European Conference on Thermoelectrics, pp. 194-198, Odessa, Ukraine 2007.
• [2] Kijewski, J., Silniki spalinowe (Combustion engines), WSiP, 1991.
• [3] Kumar, C. R., Sonthalia, A., Goel, R., Experimental study on waste heat recovery from an internal combustion engine using thermoelectric technology, Termal Science, Vol. 15, No. 4, pp. 1011-1022, India 2011.
• [4] http://autokult.pl/2011/11/04/bmw-opatentowalo-elektryczna-turbosprezarke.
• [5] Szczurowski, K., Kogeneracja energii w zagadnieniu bilansu cieplnego silników spalinowych (Cogeneration of energy as an element of the heat balance of combustion engines), Zeszyty Instytutu Pojazdów 5(86), pp. 165-170, Warszawa 2011.