Effects of combustion timing on pressure rise rates in a residual effected HCCI engine

• Autorzy: Hunicz Jacek , Gęca Michał , Kordos Paweł , Rybak Arkadiusz

Identyfikatory

DOI

10.19206/CE-2019-308

• Języki publikacji: EN

Abstrakty

EN

Realization of a low temperature combustion concept in homogeneous charge compression ignition (HCCI) engines is a cutting-edge technology that offers clean combustion in parallel with high thermal efficiency. Low combustion temperature prevents from NOx formation whereas homogeneous mixture assures smokeless exhaust. However, achieving the production feasibility by HCCI technology is hampered by high pressure rise rates and the resulting combustion noise at a high load operation. This paper explores combustion timing parameters that are capable of maintaining permissible levels of pressure rise rates under a high load regime. On the basis of experimental data collected at a high load HCCI operation, pressure rise level was correlated with combustion duration. Furthermore, combustion duration has been found to scale with in-cylinder volume, for which 50% of mass fraction burned appeared. The results showed quantitatively limitations of engine load, pointing out on required combustion timings to achieve acceptable combustion harshness depending on engine load.

Słowa kluczowe

EN

HCCI; boost; pressure rise rate

PL

HCCI; szybkość przyrostu ciśnienia

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2019
• Tom: R. 58, nr 3
• Strony: 46--50
• Opis fizyczny: Bibliogr. 17 poz., 1 fot. kolor., wykr.

Twórcy

autor

Hunicz Jacek

• Faculty of Mechanical Engineering, Lublin University of Technology

autor

Gęca Michał

• Faculty of Mechanical Engineering, Lublin University of Technology

autor

Kordos Paweł

• Faculty of Mechanical Engineering, Lublin University of Technology

autor

Rybak Arkadiusz

• Faculty of Mechanical Engineering, Lublin University of Technology

Bibliografia

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• [13] TURKCAN, A., OZSEZEN, A.N., CANAKCI, M. et. al. An experimental and modeling study to investigate effects of two-stage direct injection variations on HCCI combustion. Combustion Science and Technology. 2015, 187(4), 642-658. DOI:10.1080/00102202.2014.960562.
• [14] VRESSNER, A. et al. Pressure oscillations during rapid HCCI combustion. SAE Technical Paper 2003-01-3217. 2003. DOI:10.4271/2003-01-3217.
• [15] WESTBROOK, C.K. et al. The autoignition chemistry of paraffinic fuels and pro-knock and anti-knock additives: a detailed chemical kinetic study. SAE Technical Paper 912314. 1991. DOI:10.4271/912314.
• [16] WILDMAN, C., SCARINGE, R.J., CHENG, W.K. On the maximum pressure rise rate in boosted HCCI operation. SAE Technical Paper 2009-01-2727. 2009. DOI:10.4271/2009-01-2727.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).