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ABSTRACT
The paper presents the results of model and empirical research on the influence of the thermal state of a diesel engine (oil temperature) on its indicated (thermal) efficiency. The paper contains a test plan including a description of the test object, test equipment and measurement points on a real object. In the following part, the results of tests carried out on a real object (laboratory single-cylinder engine) and the results of model tests obtained on the original engine model are presented. The results are presented both in tabular and graphical form. The obtained test results allowed to determine the relative value of the influence of the engine's thermal state on its efficiency for various operating conditions (load and rotational speed).
 
REFERENCES (21)
1.
Andrews G, Ounzain A, Li H, Bell M, Tate J, Ropkins K. The use of a water/lube oil heat exchanger and enhanced cooling water heating to increase water and lube oil heating rates in passenger cars for reduced fuel consumption and CO2 emissions during cold start. SAE Technical Paper 2007-01-2067. 2007. https://doi.org/10.4271/2007-0....
 
2.
Bielaczyc P, Szczotka A, Woodburn J. An overview of cold start emissions from direct injection spark-ignition and compression ignition engines of light duty vehicles at low ambient temperatures. Combustion Engines. 2013;154(3):96-103. https://doi.org/10.19206/CE-11....
 
3.
Broatch A, Tormos B, Olmeda P, Novella R. Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines. Energy. 2014;73:653-660. https://doi.org/10.1016/j.ener....
 
4.
Burke RD, Brace CJ, Hawley JG, Pegg I. Review of the systems analysis of interactions between the thermal, lubri-cant, and combustion processes of diesel engines. P I Mech Eng D-J Aut. 2010;224(5):681-704. https://doi.org/10.1243/095440....
 
5.
Engine technical documentation WOLA type SW-400.
 
6.
Gęca MJ, Radica G. Effect of compression ignition engine preheating on its performance under cold start conditions. Combustion Engines. 2022;188(1):67-74. https://doi.org/10.19206/CE-14....
 
7.
Kozak M. A comparison of thermogravimetric characteristics of fresh and used engine oils. Combustion Engines. 2019;178(3):289-292. https://doi.org/10.19206/CE-20....
 
8.
Kozak M, Siejka P. Soot contamination of engine oil – the case of a small turbocharged spark-ignition engine. Combustion Engines. 2020;182(3):28-32. https://doi.org/10.19206/CE-20....
 
9.
Piotrowski I, Witkowski K. Marine internal combustion engines. Trademar. Gdynia 1996.
 
10.
Pudlik W. Termodynamika. Publishing House of Gdańsk Univesity of Technology. Gdańsk 1998.
 
11.
Roberts A, Brooks R, Shipway P. Internal combustion engine cold-start efficiency: a review of the problem, causes and potential solutions. Energ Convers Manage. 2014;82:327-350. https://doi.org/10.1016/j.enco....
 
12.
Rychter T, Teodorczyk A. Theory of piston engines. WKŁ. Warsaw 2006.
 
13.
Spencer C. Internal combustion engine pronciples – with vehicle applications. Vince Press. NY 2018.
 
14.
Tauzia X, Maiboom A, Karaky H, Chesse P. Experimental analysis of the influence of coolant and oil temperature on combustion and emissions in an automotive diesel engine. Int J Engine Res, 2019;20(2):1-14. https://doi.org/10.1177/146808....
 
15.
Tobergte M. Private communication (email): AW. The importance of advanced test processes to reduce emissions and fuel consumption – Frank Will. In: ICSAT conference, 16th August 2011.
 
16.
Wajand JA, Wajand JT. Medium and high-speed internal combustion piston engines. WNT. Warsaw 2005.
 
17.
Will F, Boretti A. A new method to warm up lubricating oil to improve the fuel efficiency during cold start. SAE Technical Paper 2011-01-0318. 2011. https://doi.org/10.4271/2011-0....
 
18.
Wontka L. Mechanical losses as a diagnostic parameter of the technical condition of a marine diesel engine. Polish Naval Academy. Doctoral Thesis. Gdynia 2017.
 
19.
Wontka L. Methods for determining mechanical losses of marine diesel engines. Scientific Journal of Polish Naval Academy. 2018;214(3):25-38. https://doi.org/10.2478/sjpna-....
 
20.
Zacharewicz M. A method of diagnosing the working spaces of a marine engine on the basis of gas-dynamic parameters in the turbocharger supply duct. Doctoral Thesis. Gdynia 2009.
 
21.
Zacharewicz M. Possibilities of parametric assessment of the technical condition of a marine diesel engine with low diagnostic susceptibility (book in Polish). Akademia Marynarki Wojennej. Gdynia 2019.
 
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ISSN:2300-9896
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