Effect Of Thermal Load On Valve By Using Conventional Diesel And Blended Fuels

Raja Nayudu, Kuppili. Mohan Krishna, V.V. Ramakrishna, J.Hari Narayana Rao


The valves used in the IC engines are of three types: Poppet or mushroom valve or Sleeve valve or Rotary valve. Of these three types, Poppet valve is most commonly used. Since both the inlet and exhaust valves are subjected to high temperatures of 500°C to 1200°C during the power stroke, therefore, it is necessary that the materials of the valves should withstand these temperatures. The temperature at the inlet valve is less compared to exhaust valve. Thus the inlet valve is generally made of nickel chromium alloy steel and exhaust valve is made of si-chrome steel.Automobile engines are usually petrol, diesel or gasoline engines. Petrol engines are Spark Ignition engines and diesel engines are Compression Ignition engines. Blended fuels are mixtures of traditional and alternative fuels in varying percentages. Here the effect of diesel blended fuels on valve is studied by mathematical correlations applying thermal loads produced during combustion. Blended fuels are usually bio fuels blended in different percentages. Percentages vary from 0%, 5%, 10% and 20%.Internal combustion engines produce exhaust gases at extremely high temperatures and pressures. As these hot gases pass through the exhaust valve, temperatures of the valve, valve seat, and stem increase. To avoid any damage to the exhaust valve assembly, heat is transferred from the exhaust valve through different parts, especially the valve seat insert during the opening and closing cycle as they come into contact with each other. In this thesis, a finite-element method is used for modeling the thermal analysis of an exhaust valve. The temperature distribution and resultant thermal fluxes are evaluated. Detailed analyses are performed to estimate the boundary conditions of an internal combustion engine. In this thesis, Catia is employed for modeling and Ansys is used for analysis of the exhaust valve.


HuseyinSerdarYucesu, TolgaTopgul, Can Cinar, MelihOkur, “Effect of ethanol-gasoline blends on engine performance and exhaust emissions in different compression ratios”, Applied Thermal Engineering26(2006) 2272-2278

L.M.Baena, M.Gomez, J.A.Calderon, “Aggressiveness of a 20% bioethanol-80% gasoline on autoparts: I behavior of metallic materials and evaluation of their electrochemical properties”, Elsevier fuel journal volume 95, May2012

Luis Miguel Rodriguez-Anton, Miguel Hernandez-Campos, Francisco-Sanz-perez, “Experimental determination of some physical properties of gasoline, ethanol and ETBE blends”, Elsevier Fuel journal vol.112, Oct. 2013 pp 178-184.

Mustafa Kemal Balki, CenkSayin, Mustafa Canakci, “The effect of different alcohol fuels on the performance, emission and combustion characteristics of a gasoline engine”, Journal of Fuel

PiotrBielaczyc, Josepeh Woodburn, DariuszKlimkiewicz, PiotrPajdowski, AndrzejSzczotka, “An examination of the effect of ethanol-gasoline blends’ physiochemical properties on emissions from light-duty spark ignition engine”, Journal of Fuel Processing Technology vol.107, March2013, pp 50- 63

HakanBayraktar, “Experimental and theoretical investigation of using gasoline-ethanol blends in spark ignition engines”, Elsevier Journal, Renewable Energy vol.30, Issue 11, Sept. 2005, pp 1733-1747

M.A.Ceviz, F.Yuksel, “Effects of ethanol-unleaded gasoline blends on cyclic variability and emissions in an SI engine”, Elsevier Journal, Applied Thermal Engineering 25(2005) 917-925

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