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Yi Yang
University of Melbourne
42Publications
18H-index
1,251Citations
Publications 41
Newest
#1Hao Yuan (University of Melbourne)H-Index: 3
#2Zhongyuan Chen (University of Melbourne)H-Index: 2
Last.James E. Anderson (Ford Motor Company)H-Index: 27
view all 6 authors...
Abstract This work develops a surrogate fuel that reproduces the octane blending of a market gasoline with ethanol. It first extends our previous investigation that reported strong, non-linear blending for ethanol/paraffin and ethanol/aromatic mixtures (Foong et al., Fuel 2014 p. 727) to consider mixtures of ethanol/cycloparaffin, ethanol/olefin, and hydrocarbons from different groups. On the molar basis, ethanol blends synergistically with cyclohexane and 1-hexene, whereas toluene blends antago...
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#1Hao Yuan (University of Melbourne)H-Index: 3
#2Zhewen Lu (University of Melbourne)H-Index: 2
Last.Thomas G. Leone (Ford Motor Company)H-Index: 11
view all 7 authors...
Abstract This paper presents a study of the oxidation of iso-octane, ethanol, toluene and their mixtures in a pressurised turbulent flow reactor operating at 900–930 K, 10 bar, and an equivalence ratio of 0.058. A large set of fuels is investigated, including neat iso-octane, ethanol, toluene, their binary mixtures, gasoline reference fuels (PRF91 and TRF91), and their mixtures with ethanol. The resulting species are measured along the length of the reactor and simulated using existing kinetic m...
1 CitationsSource
#1Zhongyuan Chen (University of Melbourne)H-Index: 2
#2Hao Yuan (University of Melbourne)H-Index: 3
Last.Michael J. Brear (University of Melbourne)H-Index: 18
view all 5 authors...
Abstract Nitric oxide (NO) is a trace species that is always present in reciprocating engines, and can significantly affect fuel autoignition. This work presents a systematic investigation of the impact of NO on fuel autoignition in a standard, octane rating engine. Knock onset timing is investigated over a wide range of equivalence ratios, intake temperatures, and fuel compositions with increasing levels of NO added via the engine intake. NO is observed to both promote and retard autoignition i...
2 CitationsSource
#1Zhewen Lu (University of Melbourne)H-Index: 2
#2Yi Yang (University of Melbourne)H-Index: 18
Last.Michael J. Brear (University of Melbourne)H-Index: 18
view all 3 authors...
Abstract This paper studies the oxidation of n-heptane, iso-octane, ethanol and their mixtures in a pressurized flow reactor, with a focus on the potential relation between the fuels oxidation reactivity and their octane ratings. The flow reactor experiments are conducted at 550–900 K, 10 bar and an equivalence ratio of 0.058. Carbon monoxide is measured as an indicator of the global reactivity. Evident low temperature oxidation and negative temperature coefficient (NTC) behaviors are observed f...
3 CitationsSource
#1Zhongyuan Chen (University of Melbourne)H-Index: 2
#2Peng Zhang (THU: Tsinghua University)H-Index: 8
Last.Zhi Wang (THU: Tsinghua University)H-Index: 28
view all 6 authors...
Abstract This paper investigates the impact of nitric oxide (NO) on n-heptane ignition in a rapid compression machine (RCM). The ignition delays of stoichiometric mixtures of n-heptane and varying amounts of NO (0–400 ppm) are measured in an argon diluent at 9 bar and over 650–1000 K. In the low temperature oxidation regime (≤ 720 K), ignition of n-heptane was promoted by NO up to 100 ppm, whilst higher NO levels do not further promote ignition. Stronger promoting effects are observed in the neg...
6 CitationsSource
#1Zhewen LuH-Index: 2
#2Julien CochetH-Index: 1
Last.Michael J. BrearH-Index: 18
view all 5 authors...
3 CitationsSource
#1Zhenbiao Zhou (University of Melbourne)H-Index: 1
#2Yi Yang (University of Melbourne)H-Index: 18
Last.Michael Howard Shelby (Ford Motor Company)H-Index: 8
view all 7 authors...
1 CitationsSource
#1Tien Mun FoongH-Index: 6
#2Michael J. BrearH-Index: 18
Last.Frederick L. DryerH-Index: 68
view all 6 authors...
This paper presents an experimental and numerical investigation of the autoignition of ethanol blended with several primary reference fuels (PRFs) and toluene reference fuels (TRFs) in a Cooperative Fuel Research (CFR) engine. Autoigniting, in-cylinder pressure traces are acquired under standard research octane number (RON) conditions. Equivalent, non-autoignitiing traces are obtained by adding a small amount of tetraethyl lead (TEL) to each fuel to suppress knock, and these are used to calibrat...
13 CitationsSource
#1Hao Yuan (University of Melbourne)H-Index: 3
#2Yi Yang (University of Melbourne)H-Index: 18
Last.James E. Anderson (Ford Motor Company)H-Index: 27
view all 5 authors...
This paper presents a method for correlating the octane numbers of fuel mixtures, and applies this to the study of toluene reference fuels (TRFs) blended with ethanol. This method combines linear regression and exhaustive (or brute-force) searching for optimal Scheffe polynomials, where optimality is defined as the shortest polynomial that meets a reasonable estimate of the reproducibility limits in the standard, octane number test procedures. Two correlations for the RON and MON are found to be...
9 CitationsSource
#1Dongil Kang (UM: University of Michigan)H-Index: 5
#2Stanislav V. Bohac (UM: University of Michigan)H-Index: 20
Last.Michael J. Brear (University of Melbourne)H-Index: 18
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Abstract This study explores the autoignition characteristics of three C5 isomers, namely n -pentane, 2-methylbutane ( iso -pentane) and 2,2-dimethylpropane ( neo -pentane). These measurements are intended to enhance understanding of C5 autoignition chemistry, and provide experimental data to guide improvements to a general hydrocarbon oxidation mechanism. To that end, the autoignition behavior of these three C5 isomers was investigated in a modified CFR engine at an intake temperature of 120 °C...
8 CitationsSource
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