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Optical investigation of prechamber combustion in an RCEM

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this study, detailed investigations of scavenged prechamber engine combustion are performed experimentally in a Rapid Compression Expansion Machine (RCEM), which allows optical access into the main chamber. OH* chemiluminescence measurements combined with pressure measurements are used to study the effect of varying ignition timing on combustion and cycle-to-cycle variations. The variation of ignition timing (pressure at ignition) showed an optimum ignition point for a given injection duration. Earlier ignition resulted in weaker but more reactive jets, coupled to increased cyclic variations. Later ignition did not significantly affect heat release rate, but increased cyclic variation.
Czasopismo
Rocznik
Strony
10--15
Opis fizyczny
Bibliogr. 17 poz., il.
Twórcy
  • Institute of Energy Technology, ETH Zurich
  • Institute of Energy Technology, ETH Zurich & Vir2sense GmbH
  • Institute of Energy Technology, ETH Zurich
Bibliografia
  • [1] AL-MAMAR, F.N.A.A., HYNES, J., SHEPPARD, C.G.W. Combustion rate in a dual chamber S.I. engine. Combustion Science and Technology. 1986, 45(1-2), 85-100.
  • [2] BHANDARI, K. et al. Performance and emissions of natural gas fueled internal combustion engine: A review. 2005.
  • [3] DALE, J.D., CHECKEL, M.D., SMY, P.R. Application of high energy ignition systems to engines. Progress in Energy and Combustion Science. 1997, 23(5-6), 379-398.
  • [4] GENTZ, G. et al. A study of the influence of orifice diameter on a turbulent jet ignition system through combustion visualization and performance characterization in a Rapid Compression Machine. Applied Thermal Engineering. 2015, 81 (Supplement C), 399-411.
  • [5] GHOLAMISHEERI, M. et al. CFD modeling of an auxiliary fueled turbulent jet ignition system in a Rapid Compression Machine. SAE Technical Paper 2016-01-0599, 2016.
  • [6] GHOLAMISHEERI, M. et al. Rapid Compression Machine study of a premixed, variable inlet density and flow rate, confined turbulent jet. Combustion and Flame. 2016, 169, 321-332.
  • [7] GHOLAMISHEERI, M., WICHMAN, I.S., TOULSON, E. A study of the turbulent jet flow field in a methane fueled turbulent jet ignition (TJI) system. Combustion and Flame. 2017, 183(Supplement C), 194-206.
  • [8] KOTZAGIANNI, M. et al. Experimental and computational investigations of prechamber jet ignition in a Rapid Compression Expansion Machine. 10th Mediterranean Combustion Symposium. 2017. Naples, Italy.
  • [9] MOREIRA, T.A.A. et al. Characterization of a multicylinder torch ignition system operating with homogenous charge and lean mixture. SAE Technical Paper 2014-36-0333. 2014.
  • [10] MORSY, M.H. Review and recent developments of laser ignition for internal combustion engines applications. Renewable and Sustainable Energy Reviews. 2012, 16(7), 4849-4875.
  • [11] THELEN, B.C.,TOULSON, E. A computational study of the effects of spark location on the performance of a turbulent jet ignition system. SAE Technical Paper 2016-01-0608, 2016.
  • [12] SCHLATTER, S. et al. Experimental study of ignition and combustion characteristics of a diesel pilot spray in a lean premixed methane/air charge using a Rapid Compression Expansion Machine. SAE Technical Paper 2012-01-0825, 2012.
  • [13] SCHLATTER, S. et al. N-heptane micro pilot assisted methane combustion in a Rapid Compression Expansion Machine. Fuel. 2016, 179, 339-352.
  • [14] SCHLATTER, S. et al. Comparative study of ignition systems for lean burn gas engines in an optically accessible Rapid Compression Expansion Machine. SAE Technical Paper 2013-24-0112, 2013.
  • [15] Testem, Technical Manual TeRCM-K48: Rapid Compression Machine for in-cylinder spray development and combustion processes analysis. 2004, Testem – Gesellschaft für Mess- und Datentechnik GmbH.
  • [16] THELEN, B.C.,TOULSON, E. A computational study on the effect of the orifice size on the performance of a turbulent jet ignition system. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 2016.
  • [17] TOULSON, E., SCHOCK, H.J., ATTARD, W.P. A review of pre-chamber initiated jet ignition combustion systems. SAE Technical Paper 2010-01-2263. 2010.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-cfe52dc9-eaf7-4bc5-907b-42dc9cec0cb3
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