... gasoline engine to determine the residual gas fraction (RGF) using a fast response CO/CO 2 analyzer. Acquisition of data for similar measurements is typically limited to engine speeds of below 1300 revolutions per minute (rpm) to allow full resolution of the sample through the analyzer that has an 8 ms...

...Stanislaus Reitenbach; Alexander Krumme; Thomas Behrendt; Markus Schnös; Thomas Schmidt; Sandrine Hönig; Robert Mischke; Erwin Mörland The purpose of this paper is to present a multidisciplinary predesign process and its application to three aero-engine models. First, a twin spool mixed flow...

... of Materials Engineering, Purdue University, West Lafayette, IN 47907. 2 Present address: Mechanical Engineering Department, The University of Akron, Akron, OH 44325. 3 Corresponding author. Manuscript received June 26, 2018; final manuscript received July 3, 2018; published online September 17, 2018...

...Michael Palman; Boris Leizeronok; Beni Cukurel The current work focuses on mission-based evaluation of a novel engine architecture arising from the conversion of a microturbojet to a microturbofan via introduction of a variable speed fan and bypass nozzle. The solution significantly improves...

...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...

... Corresponding author. Manuscript received June 22, 2018; final manuscript received June 28, 2018; published online September 14, 2018. Editor: Jerzy T. Sawicki. 22 06 2018 28 06 2018 Acoustic emission Burners Combustion Combustors Computational fluid dynamics Engines Experimental...

...David Gonzalez Cuadrado; Francisco Lozano; Valeria Andreoli; Guillermo Paniagua In this paper, we propose a two-step methodology to evaluate the convective heat flux along the rotor casing using an engine-scalable approach based on discrete Green's functions . The first step consists in the use...

...Manuel J. M. G. Ramos; James S. Wallace Particulate matter (PM) emissions from gasoline direct injection (GDI) engines are a concern due to the health effects associated with ultrafine PM. This experimental study investigated sources of PM emissions measurement variability observed in previous...

...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...

...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...

...Andrew L. Carpenter; Troy L. Beechner; Brian E. Tews; Paul E. Yelvington Electrically assisted engine boosting systems lend themselves to better throttle response, wider effective operating ranges, and can provide the ability to extract excess energy during deceleration and high-load events...

...Ian Kennedy; Zhihang Chen; Bob Ceen; Simon Jones; Colin D. Copeland Approximately 30% of the energy from an internal combustion engine is rejected as heat in the exhaust gases. An inverted Brayton cycle (IBC) is one potential means of recovering some of this energy. When a fuel is burnt, water...

...Martin L. Wissink; Scott J. Curran; Chaitanya Kavuri; Sage L. Kokjohn Experimental work on reactivity-controlled compression ignition (RCCI) in a small-bore, multicylinder engine operating on premixed iso-octane, and direct-injected n-heptane has shown an unexpected combustion phasing advance...

... shows that the feedback misfire controller, on average, stays closer to the misfire limit than a more conventional controller designed to react when a misfire is detected. 1 Corresponding author. Contributed by the IC Engine Division of ASME for publication in the J OURNAL OF E NGINEERING...

...Kenneth Clark; Michael Barringer; David Johnson; Karen Thole; Eric Grover; Christopher Robak Secondary air is bled from the compressor in a gas turbine engine to cool turbine components and seal the cavities between stages. Unsealed cavities can lead to hot gas ingestion, which can degrade critical...

.... Contributed by the IC Engine Division of ASME for publication in the J OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received February 27, 2018; final manuscript received March 26, 2018; published online July 10, 2018. Editor: David Wisler. 27 02 2018 26 03 2018...

... of respective rig tests as well as an actual engine test supporting the change in material characteristics and the associated improvement in seizure resistance. Contributed by the IC Engine Division of ASME for publication in the J OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript...

... the influence of kicker plate installation on overall TR performance. The fifth and final objective is to examine and discuss the overall flow physics associated with the thrust reverse under deployed configuration. Contributed by the Aircraft Engine Committee of ASME for publication in the J OURNAL OF E...

... OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received August 23, 2017; final manuscript received September 23, 2017; published online July 5, 2018. Editor: David Wisler. 23 08 2017 23 09 2017 Engines Experimental Fouling Heat transfer Particle deposition...

...William F. Northrop; Darrick Zarling; Xuesong Li In this work, engine-out particulate matter (PM) mass emissions from an off-highway diesel engine measured using a low-cost photometer, scanning mobility particle sizer (SMPS), elemental versus organic carbon (EC/OC) analysis, and a photo-acoustic...