Control algorithm engine cooling system with increased coolant temperature

• Autorzy: Krakowski R.
• Języki publikacji: EN

Abstrakty

EN

The article presents the test stand dedicated to research the cooling system of elevated coolant temperature. The test stand was developed in the software simulation AmeSim and the corresponding model was built. The temperature of this liquid was increased to the temperature of boiling water, as a basic compound of the cooling liquid. This system was designed for the four cylinder diesel engine 4CT90 with indirect fuel injection system. Intensity of the cooling, protected against too higher pressure, were changed by switching short and large liquid circulation and one or two fans of the cooler. Overpressure inside the cooling system was limited to 0,2 MPa, the temperature inside the cooling system was increased to 125°C. It was shown that it is possible to maintain the assumed constant pressure in the system and obtain at the elevated temperature of the liquid, leading to increased economic efficiency of the engine. The control algorithm to use of specific control procedures of cooling intensity in the pressure cooling system was developed. In the software simulation and the model stand liquid temperature and pressure course in selected points of system were determined. The characteristics obtained in the simulation software, and the model stand were designated using the developed algorithm. The software simulation was used electronic controls, while the model stand manually was controlled.

Słowa kluczowe

EN

algorithm; combustion engines; cooling systems; higher coolant temperature; simulation

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2012
• Tom: Vol. 7, no 1
• Strony: 117--124
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Krakowski R.

• Faculty of Marine Engineering ul. Morska 83, 81-225 Gdynia, Poland tel.: [phone],

Bibliografia

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• [3] Luft S., Podstawy budowy silników. WKŁ, Warszawa 2006.
• [4] Ogrodzki, A., Chłodzenie trakcyjnych silników spalinowych, WKŁ, Warszawa 1974.
• [5] Walentynowcz J., Chłodzenie tłokowych silników spalinowych, WPT nr 12/1996.
• [6] Walentynowicz J., Kałdoński T., Szczęch L., Karczewski M., Rajewski M.: Układ chłodzenia tłokowego silnika spalinowego o podwyższonej temperaturze płynu chłodzącego. Raport z realizacji projektu PBG 457/01, WAT, Warszawa 2003.
• [7] Walentynowicz, J., Krakowski, R., Modeling of the higher pressure cooling system for transport vehicles engines, TRANSPORT PROBLEMS, Vol. 5, No 4, 2010.
• [8] www.amesim.com.