... reaction kinetics, which leads to CO and unburned hydrocarbon emissions. To extend the turn-down ratio, part of the fuel can be converted to syngas, which exhibits a higher reactivity. By an increasing fraction of syngas in the fuel, the reactivity of the mixture is increased and total fuel mass flow...

...Kexin Liu; Phill Hubbard; Suresh Sadasivuni; Ghenadie Bulat Extension of gas fuel flexibility of a current production SGT-400 industrial gas turbine combustor system is reported in this paper. A SGT-400 engine with hybrid combustion system configuration to meet a customer's specific requirements...

...: Jerzy T. Sawicki. 22 06 2018 28 06 2018 Acoustic emission Burners Combustion Combustors Computational fluid dynamics Engines Experimental Finite element Flow induced vibration Fuels Modeling Periodic Thermoacoustics Unsteady Unsteady flows Vibration Wave propagation...

... tests and also examined the effect of ethanol content in gasoline on PM emissions. Some engine operating parameters (fuel and oil temperature, positive crankcase ventilation filtration) and test conditions (dilution air conditions) were studied and controlled but could not account for the level...

..., and mixture fraction scaled variance (segregation). The initial composition of species is computed, and a PSR model is used for generating the table by using the fuel mechanism. The current implemented FGM can be described in three steps: (1) The combustion chemistry is precomputed, and relevant data...

...Alessandro Bo; Eugenio Giacomazzi; Giuseppe Messina; Antonio Di Nardo The work in this paper investigates on how a fuel flexible microgas turbine (MGT) combustion chamber, developed by ANSALDO ENERGIA and installed in a Turbec T100 P MGT, can operate when transferring from natural gas (NG...

...Luke Hagen; Baine Breaux; Michael Flory; Joel Hiltner; Scott Fiveland The North American oil and gas industry has experienced a market pull for dual fuel (DF) engines that can run on any ratio of fuels ranging from 100% diesel to a high proportion of field gas relative to diesel, while also meeting...

..., especially in the fuel-kinetics-dominated engine combustion concepts. A detailed chemical kinetic model of methyl decanoate (MD), a biodiesel surrogate fuel, was used here to simulate the two-stage auto-ignition process of biodiesel with EGR addition. The effects of EGR constituents, including carbon dioxide...

...James Sevik; Michael Pamminger; Thomas Wallner; Riccardo Scarcelli; Steven Wooldridge; Brad Boyer; Scott Miers; Carrie Hall The present paper represents a small piece of an extensive experimental effort investigating the dual-fuel operation of a light-duty spark ignited engine. Natural gas (NG...

... penetration, fuel film mass, and in-cylinder visualization of the spray from the CFD results to the experimentally measured combustion phasing and emissions provided compelling evidence of strong fuel impingement at injection timings earlier than −90 crank angle degrees (deg CA) after top dead center (aTDC...

...Georg Fink; Michael Jud; Thomas Sattelmayer In this paper, pilot-ignited high pressure dual-fuel combustion of a natural gas jet is investigated on a fundamental basis by applying two separate single-hole injectors to a rapid compression expansion machine (RCEM). A S hadowgraphy system is used...

... in the ALR resulted in improved combustion of VO, characterized by blue flames, lower CO and NO x emissions, and minimal soot formation. For a given fuel flow rate, an increase in the chamber pressure resulted in smaller volume flames with lower CO levels but higher NO x emissions. Compared to diesel...

...Hongsheng Guo; Brian Liko; Luis Luque; Jennifer Littlejohns The combustion of natural gas reduces fuel cost and generates less emissions of carbon dioxide and particulate matter (PM) than diesel and gasoline. Replacing diesel by natural gas in internal combustion engines is of great interest...

...Derek Pickett; Christopher Depcik; Susan Stagg-Williams Climate change is driving the world to investigate alternative sources of fuel. In order to address any potential economic shortfalls to biodiesel, one can look to its by-product, glycerin, as a potential revenue source. At the University...

... capacity. Boosting intake pressure significantly increased the heat release rate (HRR) evaluated on J/°CA basis which represents the rate of mass of fuel burning. However, its impact on the normalized HRR evaluated on %/°CA basis, representing the flame propagation rate, was relatively mild. Boosting...

...Torsten Methling; Sandra Richter; Trupti Kathrotia; Marina Braun-Unkhoff; Clemens Naumann; Uwe Riedel Over the last years, global concerns about energy security and climate change have resulted in many efforts focusing on the potential utilization of nonpetroleum-based, i.e., bioderived, fuels...

.... , 1994 , “ On Flame Propagation along Vortex Tubes ,” Combust. Flame , 98 ( 3 ), pp. 220 – 230 . 10.1016/0010-2180(94)90237-2 [3] U.S. DOE, 2017, “Natural Gas Vehicles,” U.S. Department of Energy, Alternative Fuels Data Center, Washington, DC, accessed May 4, 2017 , http://www.afdc.energy.gov...

...Yu Li; Hailin Li; Hongsheng Guo; Yongzhi Li; Mingfa Yao This research numerically simulates the formation and destruction of nitrogen dioxide (NO 2 ) in a natural gas (NG)–diesel dual fuel engine using commercial CFD software converge coupled with a reduced primary reference fuel (PRF) mechanism...

...Sheng Wei; Brandon Sforzo; Jerry Seitzman This paper describes experimental measurements of forced ignition of prevaporized liquid fuels in a well-controlled facility that incorporates nonuniform flow conditions similar to those of gas turbine engine combustors. The goal here is to elucidate...

... that generally results in lower engine-out soot and oxides of nitrogen (NO x ) emission, with a moderate penalty in engine-out unburned hydrocarbon (UHC) and carbon monoxide (CO) emissions. In this study, PPC is accomplished with a minority fraction of jet fuel injected into the intake manifold, while...