Effects of water injection to the fuel and air mixture on equilibrium gas composition in combustion products and selected parameters of the theoretical Otto cycle

• Autorzy: Sucheta Andrzej

Identyfikatory

DOI

10.19206/CE-2019-217

• Języki publikacji: EN

Abstrakty

EN

Moisturizing the intake air by spraying water in the liquid phase significantly lowers the intake air temperature, mainly due to the high value of latent heat of evaporation. The paper presents a methodology for calculating the parameters of the air-fuel mixture after water injection and during subsequent processes of the Otto cycle: compression, combustion and expansion of exhaust gases. For octane as a fuel, exemplary calculations have been carried out to investigate the effect of water injection on the composition of combustion products and selected parameters of the theoretical Otto cycle (temperature, pressure, output power and thermal efficiency).

Słowa kluczowe

EN

intake air humidification; water injection; Otto cycle; equilibrium

PL

nawilżanie powietrza; wtrysk wody; cykl Otto; równowaga

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2019
• Tom: R. 58, nr 2
• Strony: 95--102
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Sucheta Andrzej

• Faculty of Mechanical Engineering and Computer Science, University of Bielsko-Biala

Bibliografia

• [1] ANNAMALAI, K., PURI, I. Advanced thermodynamics engineering. CRC Press. 2002.
• [2] BORETTI, A. Water injection in directly injected turbocharged spark ignition engines. Applied Thermal Engineering. 2013, 52, 62-68. DOI: 10.1016/j.applthermaleng.2012.11.016.
• [3] CHEN, B., ZHANG, L., CHEN, X., ZHANG, Q. Thermodynamics and numerical analysis of intake air humidification of a turbocharged GDI engine. Sadhana-Academy Proceedings in Engineering Science. 2018, 43(5), art. no. 79. DOI:10.1007/s12046-018-0871-5.
• [4] FALFARI, S., BIANCHI, G., CAZZOLI, G. et al. Basic on water injection process for gasoline engines. 73rd Conference of Italian Thermal Machines Engineering Association. ATI2018. Energy Procedia. 2018, 148, 50-57. DOI:10.1016/j.egypro.2018.08.018.
• [5] JANAF Thermochemical Tables, NSRDS_NB, US Bureau of Standards, IV ed. 1998.
• [6] RYCHTER, T., TEODORCZYK, A. Teoria silników tłokowych. WKŁ. Warszawa 2006 (in polish).
• [7] SONNTAG, R., BORGNAKKE, C., VAN WYLEN, G. Fundamentals of thermodynamics. John Wiley&Sons. 2003.
• [8] SUCHETA, A. Obliczanie składu równowagowego spalin, Silniki Spalinowe. PTNSS, 2007-SC2 (in polish).

Uwagi

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