Catalytic reactor as a resistance element of ICE exhaust system

• Autorzy: Postrzednik S. , Żmudka Z.
• Języki publikacji: EN

Abstrakty

EN

Selected problems connected with operation of catalytic reactors are presented. Conversion rate of harmful substances is the principal parameter of catalyst work in respect of ecology. However, resistance of exhaust gas flow through the catalytic converter is also essential problem, apart from its chemical efficiency because fitting the catalyst in exhaust system alters flow characteristic of this system significantly. Catalytic converter can be treated as local or linear resistance element of exhaust system. The first model, in which flow resistance generated by a catalyst is treated as local resistance, is more simplified. Resistance number of the converter was calculated using Darcy model. In the second case, exhaust gas flow resistance through catalyst is treated as linear resistance with energy dissipation (linear frictional resistance) distributed linearly along way of exhaust gas flow. Friction number for the tested converter was calculated and analysed. The problem has been illustrated by results of experimental researches of three-way catalytic converter installed in exhaust system of spark ignition engine and its basic analysis.

Słowa kluczowe

EN

internal combustion engine; catalytic converter; pressure drop; local and linear flow resistance; resistance number

• 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: 2007
• Tom: Vol. 14, No. 4
• Strony: 351--356
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Postrzednik S.

autor

Żmudka Z.

• Silesian University of Technology Institute of Thermal Engineering Konarskiego 18, 44-100 Gliwice, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Maus, W., Jumping the SULEV Hurdle with “Cascades”, Auto Technology 2, 2001.
• [2] Postrzednik, S., Termodynamika zjawisk przep􀃡ywowych, Wydawnictwo Politechniki Ślśskiej, Gliwice, 1991.
• [3] Postrzednik, S., Żmudka, Z., Improvement if IC Engine Work by Modification its Thermodynamic Cycle, Proceedings of ECOS’2002, 15th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Berlin, 2002.
• [4] Żmudka, Z., Postrzednik, S., Characteristics and Diminishing of Gaseous Emission from Diesel Engine, International Journal of Applied Thermodynamics, International Centre for Applied Thermodynamics, Vol. 3 (No. 1), pp. 43-48, March, 2000.
• [5] Żmudka, Z., Postrzednik, S., Ciesiołkiewicz, A., Evaluation of work parameters of oxidation catalysts in diesel engine exhaust system, Journal of KONES – Internal Combustion Engines, Vol. 10, No. 3 – 4, 2003.
• [6] Postrzednik, S., Żmudka, Z., Solid Material Porosity and the Method of its Determination, (paper 4-10-1018), Proceedings of the 29th International Symposium on Combustion, Hokkaido University, Sapporo, 2002.
• [7] Żmudka, Z., Postrzednik, S., Ciesiołkiewicz, A., Operation Aspects of Automotive Catalytic Converter Application. Proceedings of ECOS’2004, 17th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Guanajuato, Mexico, 2004.