CFD AND EXPERIMENTAL ANALYSIS ON THERMAL PERFORMANCE OF EXHAUST SYSTEM OF A SPARK IGNITION ENGINE
作者： Murat Kapsiz , Mesut Durat , Zekeriya Parlak , Adnan Parlak
DOI:
关键词:
摘要: Catalysts of a gasoline engine become active when the exhaust temperature exceeds 200 o C. Cold start HCs are extremely high until catalysts reach light-off temperature. Determination optimum place and necessary time catalyst to this is vital importance. Interaction between gas inner wall, along with pipe needs be well-understood. The interaction can computed by numerical solutions based on fluid dynamics heat transfer equations depending location. In study, three-dimensional transient CFD analysis has been performed for whole pipe. results was in very good agreement those experimental data. Also, an optimal location determined regime. Heat phenomena were also investigated analytically using different Nusselt number correlations given literature. Analytic compared Each correlation gave reasonable range Reynolds number.
tibtd.org.tr 参考文章(24)
Christopher Depcik, Dennis N. Assanis, A Universal Heat Transfer Correlation for Intake and Exhaust Flows in an Spark-Ignition Internal Combustion Engine SAE 2002 World Congress & Exhibition. ,(2002) , 10.4271/2002-01-0372
Nick E. Gallopoulos, Bridging the Present to the Future in Personal Transportation - The Role of Internal Combustion Engines SAE transactions. ,vol. 101, pp. 808- 819 ,(1992) , 10.4271/920721
Daniel W. Wendland, Automobile Exhaust-System Steady-State Heat Transfer Vehicle Thermal Management Systems Conference. ,(1993) , 10.4271/931085
Steve Meisner, S. C. Sorenson, Computer Simulation of Intake and Exhaust Manifold Flow and Heat Transfer SAE International Congress and Exposition. ,(1986) , 10.4271/860242
Rakesh Sachdev, S. C. Sorenson, An Investigation of Instantaneous Heat Transfer Rates in the Exhaust Port of an Internal Combustion Engine Final Report Illinois Univ. ,(1981)
S.H. Chan, D.L. Hoang, Heat transfer and chemical reactions in exhaust system of a cold-start engine International Journal of Heat and Mass Transfer. ,vol. 42, pp. 4165- 4183 ,(1999) , 10.1016/S0017-9310(99)00064-2
G.C. Koltsakis, P.A. Konstantinidis, A.M. Stamatelos, Development and application range of mathematical models for 3-way catalytic converters Applied Catalysis B-environmental. ,vol. 12, pp. 161- 191 ,(1997) , 10.1016/S0926-3373(96)00073-2
N.A Henein, M.K Tagomori, Cold-start hydrocarbon emissions in port-injected gasoline engines Progress in Energy and Combustion Science. ,vol. 25, pp. 563- 593 ,(1999) , 10.1016/S0360-1285(99)00003-9
Dan Styles, C. Scott Sluder, John M.E. Storey, Mehdi Abarham, John W. Hoard, Dennis Assanis, An Analytical Study of Thermophoretic Particulate Deposition in Turbulent Pipe Flows Aerosol Science and Technology. ,vol. 44, pp. 785- 795 ,(2010) , 10.1080/02786826.2010.491841
J.A. Caton, J.B. Heywood, An experimental and analytical study of heat transfer in an engine exhaust port International Journal of Heat and Mass Transfer. ,vol. 24, pp. 581- 595 ,(1981) , 10.1016/0017-9310(81)90003-X