Unsteady state heat flow in the exhaust valve in turbocharged Diesel engine covered by the layer of the carbon deposit

• Autorzy: Hornik, A. , Jędrusik, J. , Wilk, K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The determination of the temperature distribution, temperature gradients and thermal stresses in the exhaust valve with using the layer of the carbon deposit in initial phase of the work of turbocharged Diesel engine. Design/methodology/approach: The results of calculations of the temperature distribution, temperature gradients and thermal stresses in the exhaust valve of turbocharged Diesel engine with using the layer of the carbon deposit on the different surfaces of the valve were received by means of the two – zone combustion model and the finite element method. Findings: The computations presented the possibility of use of the geometrical models of the layer of carbon deposit on the different surfaces of the exhaust valve and heat transfer on individual surfaces of the exhaust valve used by the variable values of the boundary conditions and temperature of working medium in initial time of the working engine. Research limitations/implications: The modelling of thermal loads were carried out by analysing the temperature distribution, temperature gradients and thermal stresses in the exhaust valve in initial phase of the work of turbocharged Diesel engine. Originality/value: The layer of the carbon deposit was used for modelling of thermal loads in the exhaust valve as the geometric model with the use of material properties. The results obtained allow to analyse distribution of temperature, temperature gradients and thermal stresses in the exhaust valve.

Słowa kluczowe

PL

techniki numeryczne; obciążenie cieplne; depozyt węglowy; MES (metoda elementów skończonych)

EN

numerical techniques; heat loads; carbon deposit; FEM

• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 54, nr 2
• Strony: 68-77
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Hornik, A.

autor

Jędrusik, J.

autor

Wilk, K.

Bibliografia

• [1] S. Wiśniewski, The heat loads of piston engines, Publishing house of Transport and Communication, Warsaw, 1972 (in Polish).
• [2] P. Gustof, Calculations of temperature for all cycle of work in the cylinder of turbo diesel engine, Scientific Journal of Silesian University of Technology: Transport 43 (2001) 5-11 (in Polish).
• [3] D. Jędrusik, P. Gustof, The modeling of the heat loads in the exhaust valve from and without regard of the carbon deposit, Journal of KONES 17/3 (2010) 173-179.
• [4] D. Jędrusik, P. Gustof, Determines distribution of tem-peratures the exhaust valve of Diesel in an unsteady state, Scientific Journal of Silesian University of Technology: Transport 50 (2003) 7-14 (in Polish).
• [5] P. Gustof, A. Hornik, Modelling of the heat loads of the valves in turbo Diesel engine and the accuracy of calculations, Journal of Achievements in Materials and Manufacturing Engineering 23/2 (2007) 59-62.
• [6] D. Jędrusik, P. Gustof, Using of model of two-zone for determines of temperatures the exhaust valve of turbo Diesel engine in unsteade state, Technical Journal of Cracow Technical University: Mechanics 6-M/2004 (2004) 263-270.
• [7] P. Gustof, A. Hornik, Determination of the temperature
• [8] E. Rusinski, J. Czmochowski, P. Moczko, Failure reasons investigations of dumping conveyor breakdown, Journal of Achievements in Materials and Manufacturing Engineering 23/1 (2007) 75-78.
• [9] P. Gustof, A. Hornik, D. Jędrusik, Modelling of the heat load in the piston of turbo Diesel engine, Scientific Journal of Silesian University of Technology: Transport 63 (2007) 5-11 (in Polish),.
• [10] P. Gustof, A. Hornik, The influence of the engine load on value and temperature distribution in the piston of the turbocharged Diesel engine, Journal of Achievements in Materials and Manufacturing Engineering 35/2 (2009) 146-153.
• [11] S. Kwaśniowski, Z. Sroka, W. Zabłocki, Modelling of the heat loads in elements of combustion engines, Publishing House of Wroclaw Technical University, Wroclaw, 1999 (in Polish).
• [12] S. Wiśniewski, Heat exchange, Scientific Publishing House, Warsaw, 1988 (in Polish).
• [13] M.H. Shojaefarda, A.R. Noorpoora, D.A. Bozchaloea, M. Ghaffarpourb, Transient Thermal Analysis of Engine Exhaust Valve, Numerical Heat Transfer, Part A: An International Journal of Computation and MethodologyApplications 48/7 (2005) 627-644.
• [14] L.A. Dobrzański, Engineering materials and material design. Principles of materials science and physical metallurgy, WNT, Warsaw, 2006 (in Polish).
• [15] G.T. Kalghatgi, Combustion chamber deposits in sparkignition engines, SAE Paper No: 952443 2005.
• [16] E. Rusiński, Finite element method, Cosmos/M System, Publishing House of Transport and Communication, Warsaw, 1994 (in Polish).
• [17] K. Niewiarowski, Piston internal-combustion engines, Publishing House of Transport and Communication, Warsaw, 1983 (in Polish).