Effect of the Partial Heat Insulation of the Diesel Engine Combustion Chamber on Heat Transfer into the Cooling System

Authors: Onishchenko D.O., Pankratov S.A. , Smirnov A.Yu. Published: 12.06.2016
Published in issue: #3(108)/2016  

DOI: 10.18698/0236-3941-2016-3-81-89

Category: Power Engineering | Chapter: Heat Engines  
Keywords: diesel, heat insulation, combustion chamber, cooling system, zirconium dioxide, heat transfer

The article looks at recent results of the experimental study of the basic engine and the engine with partial heat insulation of the combustion chamber. Engine D246.9 (4ChN 11,0/12,5), which is planned to be used as an auxiliary power unit, was selected for the experimental study. The zirconium dioxide layer (0,15 mm) with nickel substrate was used for the heat insulation of the combustion chamber. The layer was applied to the valve, piston and the cylinder head surface. The heat insulation layer possesses a sufficient adhesion to the parts, consequently, no peeling or flaws occur. Findings of the research show the possibility of reducing the heat removal in the coolant and engine lubricating oil with a slight increase in fuel consumption. For this purpose, it is necessary to replace the film method of mixing with the volume method, as well as to optimize the design and tuning parameters of the diesel engine.


[1] Kavtaradze R.Z. Lokal’nyy teploobmen v porshnevykh dvigatelyakh [Local Heat Transfer in Piston Engines]. Moscow, MGTU im. N.E. Baumana Publ., 2007. 472 p.

[2] Onishchenko D.O. Uluchshenie effektivnykh i ekologicheskikh pokazateley dizelya i snizhenie teplovykh nagruzok na ego osnovnye detali. Diss. dokt. tekh. nauk [Improving Diesel Efficiency and Environmental Performance and Reducing Thermal Loads on Its Main Parts. Dr. tech. sci. diss.]. Moscow, MGTU im. N.E. Baumana, 2013.

[3] Shpakovskiy V.V. Effect of Partially Dynamic Thermal Insulation on the Thermal State of the Piston Surface. Dvigateli vnutrennego sgoraniya [Internal Combustion Engines], 2010, no. 2, pp. 92-95 (in Russ.).

[4] Kamo R., Bryzik W. Cummins Advanced Adiabatic Engine. SAE Technical Paper Series. TACOM, 1984, no. 840428. 14 p.

[5] Bryzik W., Kamo R. Cummins Adiabatic Engine Program. SAE Technical Paper Series. TACOM, 1983, no. 830314. 25 р.

[6] Ogawa Y., Ogasawara T., Machida M., Tsukawaki Y., Shimono K. Complete ceramic swirl chamber for passenger car diesel engine. Shimonok SAE Technical Paper Series, 1987, no. 870650, pp. 243-250.

[7] Smotritskiy A.V., Zinov’ev V.E., Starostin A.A., Korshunov I.G., Petrovskiy V.Ya. Thermal properties of silicon nitride-based ceramics at high temperatures. High Temperature, 1996, 34:4, pp. 541-545.

[8] Groth K., Thiemann W. Beitrag zur Brennraumisolierung bei Viertaktdieselmotoren. MTZ. Teil 1, 1983, no. 5, pp. 189-197; Teil 2, 1983, no. 7-8, pp. 287-289.

[9] Sherepova N.V., Zakharov S.A. Theoretical and experimental analysis of resistance to thermal shocks of combustion chamber details made of construction ceramics. Dvigatelestroenie [Engine Building], 1991, no. 6, pp. 40-42 (in Russ.).