The effects of spark timing, unburned gas temperature, and negative valve overlap on the rates of stoichiometric spark assisted compression ignition combustion

Persson H, Hultqvist A, Johansson B, Remón A. Investigation of the early flame development in spark assisted HCCI combustion using high speed chemiluminescence imaging. SAE 2007-01-0212; 2007. Reuss, 2008, Experimental metrics for identifying origins of combustion variability during spark-assisted compression ignition, Int J Eng Res, 9, 409, 10.1243/14680874JER01108 Zigler, 2011, An experimental investigation of the sensitivity of the ignition and combustion properties of a single-cylinder research engine to spark-assisted HCCI, Int J Eng Res, 12, 353, 10.1177/1468087410401286 Lavoie, 2010, A multi-mode combustion diagram for spark assisted compression ignition, Combust Flame, 157, 1106, 10.1016/j.combustflame.2010.02.009 Martz, 2011, A computational study and correlation of premixed isooctane-air laminar reaction front properties under spark ignited and spark assisted compression ignition engine conditions, Combust Flame, 158, 1089, 10.1016/j.combustflame.2010.09.014 Huang, 2004, Dilution limits of n-butane/air mixtures under conditions relevant to HCCI combustion, Combust Flame, 136, 457, 10.1016/j.combustflame.2003.10.011 Martz, 2012, The propagation of a laminar reaction front during end-gas auto-ignition, Combust Flame, 159, 2077, 10.1016/j.combustflame.2012.01.011 Middleton, 2012, A computational study and correlation of premixed isooctane air laminar reaction fronts diluted with EGR, Combust Flame, 159, 3146, 10.1016/j.combustflame.2012.04.014 Dec, 2010, Boosted HCCI for high power without engine knock and with ultra-low NOx emissions – using conventional gasoline, SAE Int J Engines, 3, 750, 10.4271/2010-01-1086 Olsson J-O, Tunestål P, Johansson B, Fiveland S, Agama R, Willi M, et al. Compression ratio influence on maximum load of a natural gas fueled HCCI engine. SAE 2002-01-0111; 2002. Cairns A, Blaxill H. The effects of combined internal and external exhaust gas recirculation on gasoline controlled auto-ignition. SAE 2005-01-0133; 2005. Manofsky L, Vavra J, Assanis D, Babajimopoulos A. Bridging the gap between HCCI and SI: spark-assisted compression ignition. SAE 2011-01-1179; 2011. Szybist, 2010, Load expansion of stoichiometric HCCI using spark assist and hydraulic valve actuation, SAE Int J Engines, 3, 244, 10.4271/2010-01-2172 Wang, 2010, Combustion visualization and experimental study on spark induced compression ignition (SICI) in gasoline HCCI engines, Energy Convers Manage, 51, 908, 10.1016/j.enconman.2009.11.029 Yun, 2010, Extending the high load operating limit of a naturally-aspirated gasoline HCCI combustion engine, SAE Int J Engines, 3, 681, 10.4271/2010-01-0847 Weall, 2012, The effects of fuel characteristics on stoichiometric spark-assisted HCCI, J Eng Gas Turb Power, 134, 072805, 10.1115/1.4006007 Yun, 2011, High load HCCI operation using different valving strategies in a naturally-aspirated gasoline HCCI engine, SAE Int J Engines, 4, 1190, 10.4271/2011-01-0899 Xie, 2013, Study on spark assisted compression ignition (SACI) combustion with positive valve overlap at medium-high load, Appl Energy, 101, 622, 10.1016/j.apenergy.2012.07.015 Koopmans L, Denbratt I. A four stroke camless engine, operated in homogeneous charge compression ignition mode with commercial gasoline. SAE 2001-01-3610; 2001. Stivender DL. Development of a Fuel-based mass emission measurement procedure. SAE 710604; 1971. Woschni G. A universally applicable equation for the instantaneous heat transfer coefficient in the internal combustion engine. SAE 670931; 1967. Fitzgerald, 2010, Determination of cycle temperatures and residual gas fraction for HCCI negative valve overlap operation, SAE Int J Engines, 3, 124, 10.4271/2010-01-0343 Lavoie GA, Ortiz-Soto E, Babajimopoulos A, Martz JB, Assanis DN. Thermodynamic sweet spot for high-efficiency, dilute, boosted gasoline engines. Int J Eng Res. http://dx.doi.org/10.1177/1468087412455372. Eng JA. Characterization of pressure waves in HCCI combustion. SAE 2002-01-2859; 2002. Sjöberg, 2009, Influence of fuel autoignition reactivity on the high-load limits of HCCI engines, SAE Int J Engines, 1, 39, 10.4271/2008-01-0054 Heywood, 1988 Martz, 2011, Combustion regime of a reacting front propagating into an auto-igniting mixture, Proc Combust Inst, 33, 3001, 10.1016/j.proci.2010.07.040 Aleiferis, 2004, The nature of early flame development in a lean-burn stratified-charge spark-ignition engine, Combust Flame, 136, 283, 10.1016/j.combustflame.2003.08.011 Shen H, Jiang D. Investigation on the flame initiation and early development in a spark ignition engine. SAE 922239; 1992. Herweg R, Ziegler GFW. Flame kernel formation in a spark-ignition engine. In: Proc 2nd Int Symp COMODIA, Kyoto, vol. 90; 3–5 September 1990. p. 173–8. Herweg R, Maly RR. A fundamental model for flame kernel formation in SI engines. SAE 922243; 1992. Sjöberg M, Dec JE, Babajimopoulos A, Assanis D. Comparing enhanced natural thermal stratification against retarded combustion phasing for smoothing of HCCI heat-release rates. SAE 2004-01-2994; 2004. Shen H, Hinze PC, Heywood JB. A model for flame initiation and early development in SI engine and its application to cycle-to-cycle variations. SAE 942049; 1994. Tsurushima T, Kunishima E, Asaumi Y, Aoyagi Y, Enomoto Y. The effect of knock on heat loss in homogeneous charge compression ignition engines. SAE 2002-01-0108; 2002. Rothamer, 2009, Simultaneous imaging of exhaust gas residuals and temperature during HCCI combustion, Proc Combust Inst, 32, 2869, 10.1016/j.proci.2008.07.018 Babajimopoulos A, Assanis DN, Fiveland S. An approach for modeling the effects of gas exchange processes on HCCI combustion and its application in evaluating variable valve timing control strategies. SAE 2002-01-2829; 2002. Olesky, 2012, Effects of charge preheating methods on the combustion phasing limitations of an HCCI engine with negative valve overlap, J Eng Gas Turb Power, 134, 112801, 10.1115/1.4007319 Amano T, Morimoto S, Kawabata Y. Modeling of the effect of air/fuel ratio and temperature distribution on HCCI engines. SAE 2001-01-1024; 2001.