Author
Xiaoyu Huang
Bio: Xiaoyu Huang is an academic researcher from Shanghai Jiao Tong University. The author has contributed to research in topics: Engineering & Diesel fuel. The author has an hindex of 4, co-authored 5 publications receiving 27 citations.
Topics: Engineering, Diesel fuel, Cetane number, Evaporation, Combustion
Papers
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TL;DR: In this article, the evaporation and micro-explosion characteristics of biodiesel/n-propanol blended droplets at 573, 673 and 773 K ambient temperatures were studied using high-speed backlight imaging technique.
28 citations
TL;DR: In this paper, the authors carried out evaporation experiments of multiple droplets in a stagnant hot atmospheric environment (573, 673 and 773 K) using high-speed backlit image technique.
Abstract: In this work, evaporation experiments of multiple droplets are carried out in a stagnant hot atmospheric environment (573, 673 and 773 K) using high-speed backlit image technique. Three fuel droplets with nearly same initial diameter are suspended at intersections of two 0.1 mm quartz fibers. The normalized droplet spacing (s/d0) of three droplets is 2.25. The results show that the evaporation process of single, edge and central fuel droplet containing three stage: initial heating, unsteady evaporation and quasi-steady evaporation stage. Classical d2 law is still suitable for edge and central droplet at quasi-steady evaporation stage. The third stage of edge and central droplet accounts for more than 60% of droplet lifetime at low temperatures and about 50% at high temperatures. The evaporation rate constant of edge and central droplet increases and droplet lifetime decreases with increasing ambient temperature. The evaporation time of edge and central droplet at first and third stage is higher than single droplet, but lower than single droplet in the second stage. More importantly, the evaporation interactions between droplets is significant at low temperature. Compared with single droplet, the lifetime of central droplet is increased by 31.8%, 18.6% and 25.9%, respectively.
20 citations
TL;DR: In this paper, the effect of support fiber on fuel droplet vaporization was experimentally investigated in a stagnant high-temperature environment (673-973 K) using high-speed backlit imaging technique.
14 citations
TL;DR: In this article, a skeletal DDCL surrogate mechanism consisting of 131 species and 461 reactions was proposed for diesel engine experiments fueled with direct coal liquefaction (DDCL), which was extensively validated against experimental data including ignition delay times, species concentration profiles and laminar flame speeds.
13 citations
TL;DR: In this article, a simplified combustion mechanism of DDCL was constructed by combining the mechanisms of the two fuels, and the NOx mechanism was combined to form the DDCL-PODE3-NOx mechanism.
1 citations
Cited by
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TL;DR: In this article, the evaporation and micro-explosion characteristics of biodiesel/n-propanol blended droplets at 573, 673 and 773 K ambient temperatures were studied using high-speed backlight imaging technique.
28 citations
TL;DR: In this paper , the underlying physical and physicochemical mechanisms of multicomponent droplets during wetting and spreading, induced by evaporation and/or mediated by the vapor field are reviewed.
27 citations
TL;DR: In this article, phase transition processes of three-component hydrocarbon fuel (5.3% isooctane, 25.8% n-dodecane and 68.9% nhexadecane) droplets in sub- and supercritical nitrogen environments were studied using molecular dynamics.
27 citations
TL;DR: In this article , the evaporation process of single-component fuel droplets includes transient heating and equilibrium phase, which increase the surface area of the droplet surface area and increase the evapsoration rate, which is critical for understanding spray and combustion processes and provides valuable information and guidance for optimizing engine performance.
24 citations
TL;DR: In this article, a thorough evaluation of different column combinations for two-dimensional gas chromatography (GC × GC), i.e., nonpolar × polar and polar × non-polar, revealed that the second combination had the best performance, as indicated by the bi-dimensional resolution of the selected key compounds.
Abstract: Plastic-waste pyrolysis oils contain large amounts of linear, branched, and di-olefinic compounds. This makes it not obvious to determine the detailed group-type composition in particular to the presence of substantial amounts of N-, S-, and O-containing heteroatomic compounds. The thorough evaluation of different column combinations for two-dimensional gas chromatography (GC × GC), i.e., non-polar × polar and polar × non-polar, revealed that the second combination had the best performance, as indicated by the bi-dimensional resolution of the selected key compounds. By coupling the GC × GC to multiple detectors, such as the flame ionization detector (FID), a sulfur chemiluminescence detector (SCD), a nitrogen chemiluminescence detector (NCD), and a mass spectrometer (MS), the identification and quantification were possible of hydrocarbon, oxygen-, sulfur-, and nitrogen-containing compounds in both naphtha (C5–C11) and diesel fractions (C7–C23) originating from plastic-waste pyrolysis oils. Group-type quantification showed that large amounts of α-olefins (36.39 wt%, 35.08 wt%), iso-olefins (8.77 wt%, 9.06 wt%), and diolefins (4.21 wt%, 4.20 wt%) were present. Furthermore, oxygen-containing compounds (alcohols, ketones, and ethers) could be distinguished from abundant hydrocarbon matrix, by employing Stabilwax as the first column and Rxi-5ms as the second column. Ppm levels of sulfides, thiophenes, and pyridines could also be quantified by the use of selective SCD and NCD detectors.
21 citations