• Complex
  • Title
  • Author
  • Keyword
  • Abstract
  • Scholars
High Impact Results & Cited Count Trend for Year Keyword Cloud and Partner Relationship

Query:

学者姓名:黄佐华

Refining:

Source

Submit Unfold

Co-Author

Submit Unfold

Language

Submit

Clean All

Export Sort by:
Default
  • Default
  • Title
  • Year
  • WOS Cited Count
  • Impact factor
  • Ascending
  • Descending
< Page ,Total 56 >
The effect of pentanol addition on the particulate emission characteristics of a biodiesel operated diesel engine EI SCIE Scopus
期刊论文 | 2017 , 209 , 132-140 | FUEL | IF: 4.908
WoS CC Cited Count: 6
Abstract&Keyword Cite

Abstract :

In the present study, combustion performance and the physical and chemical characteristics of soot particles from a DI diesel engine were studied. The engine was fueled with n-pentanol mixed with biodiesel at 15% and 30% by volume and operated at 1800 rpm under three engine loads (20%, 50% and 80% load). In comparison with pure biodiesel, the pentanol-biodiesel blends lead to delayed start of combustion and shortened combustion duration. The particle number concentrations of all size groups are reduced for biodiesel-pentanol blends in all the tested conditions, due to longer ignition delay time, lower viscosity and boiling point, and higher oxygen content of pentanol. The brake specific elemental carbon (EC) emissions of biodiesel were found to be lower compared to diesel and after adding pentanol in biodiesel, the EC emissions further decrease. While for organic carbon (OC) emissions, biodiesel and diesel are at similar level under the tested engine loads, and the blends show a higher fraction of OC at low and medium engine loads. The blended fuel with higher proportion of pentanol gives lower total particle-phase PAHs emissions and also a lower benzo[a] pyrene equivalent (BaPeq) compared to pure biodiesel under the tested engine loads.

Keyword :

Pentanol Particulate emissions PAHs Biodiesel OC Diesel engine EC

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Yang, Ke , Wei, Long , Cheung, C. S. et al. The effect of pentanol addition on the particulate emission characteristics of a biodiesel operated diesel engine [J]. | FUEL , 2017 , 209 : 132-140 .
MLA Yang, Ke et al. "The effect of pentanol addition on the particulate emission characteristics of a biodiesel operated diesel engine" . | FUEL 209 (2017) : 132-140 .
APA Yang, Ke , Wei, Long , Cheung, C. S. , Tang, Chenglong , Huang, Zuohua . The effect of pentanol addition on the particulate emission characteristics of a biodiesel operated diesel engine . | FUEL , 2017 , 209 , 132-140 .
Export to NoteExpress RIS BibTex
Experimental and kinetic study on ignition delay times of lean n-butane/hydrogen/argon mixtures at elevated pressures EI SCIE Scopus
期刊论文 | 2017 , 42 (17) , 12645-12656 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | IF: 4.229
WoS CC Cited Count: 4
Abstract&Keyword Cite

Abstract :

Measurements on ignition delay times of n-butane/hydrogen/oxygen mixtures diluted by argon were conducted using the shock tube at pressures of 2, 10 and 20 atm, temperatures from 1000 to 1600 K and hydrogen fractions (X-H2) from 0 to 98%. It is found that hydrogen addition has a non-linear promoting effect on ignition delay of n-butane. Results also show that for X-H2 less than 95%, ignition delay time shows an Arrhenius type dependence and the increase of pressure and temperature lead to shorter ignition delay times. However, for X-H2 = 98% and 100% mixtures, non-monotonic pressure dependence of ignition delay time were observed. The performances of the Aramco2.0 model, San Diego 2016 model and USC2.0 model were evaluated against the experimental data. Only the Aramco2.0 model gives a reasonable agreement with all the measurements, which was conducted in this study to interpret the effect of pressure and hydrogen addition on the ignition chemistry of n-butane. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Keyword :

Ignition delay time Hydrogen Chemical kinetic n-Butane Fuel blends

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Jiang, Xue , Pan, Youshun , Liu, Yang et al. Experimental and kinetic study on ignition delay times of lean n-butane/hydrogen/argon mixtures at elevated pressures [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2017 , 42 (17) : 12645-12656 .
MLA Jiang, Xue et al. "Experimental and kinetic study on ignition delay times of lean n-butane/hydrogen/argon mixtures at elevated pressures" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 42 . 17 (2017) : 12645-12656 .
APA Jiang, Xue , Pan, Youshun , Liu, Yang , Sun, Wuchuan , Huang, Zuohua . Experimental and kinetic study on ignition delay times of lean n-butane/hydrogen/argon mixtures at elevated pressures . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2017 , 42 (17) , 12645-12656 .
Export to NoteExpress RIS BibTex
High-temperature oxidation kinetics of iso-octane/n-butanol blends-air mixture EI SCIE Scopus
期刊论文 | 2017 , 133 , 443-454 | ENERGY | IF: 4.968
WoS CC Cited Count: 2
Abstract&Keyword Cite

Abstract :

A chemical kinetic mechanism of n-butanol/iso-octane blends (Model BI) was established on the basis of a n-butanol reaction submechanism and part of a high-temperature oxidation mechanism of iso-octane. Model BI was validated against laminar flame speeds, ignition delay times and JSR data, and proved to be applicable and reliable. It also found that the laminar flame speed of blends increased linearly and monotonically with the increasing ratio of n-butanol. Then detailed kinetic pathway analysis of n-butanol/iso-octane blends were performed based on Model BI to find out the reason for the accelerating effect of added n-butanol. The most influential elementary reactions were determined for the blend, and the laminar flame speed is largely negative related to the concentration of iC(4)H(8), C3H6 and CH3, while C2H4 and C2H3 contribute to the promotion of laminar flame speeds. Flame structures of n-butanol blending with iso-octane were also computed and correspond to the kinetic pathway analysis. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword :

Chemical kinetic mechanism n-butanol Iso-octane Laminar flame speed

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Li, Xiaotian , Hu, Erjiang , Meng, Xin et al. High-temperature oxidation kinetics of iso-octane/n-butanol blends-air mixture [J]. | ENERGY , 2017 , 133 : 443-454 .
MLA Li, Xiaotian et al. "High-temperature oxidation kinetics of iso-octane/n-butanol blends-air mixture" . | ENERGY 133 (2017) : 443-454 .
APA Li, Xiaotian , Hu, Erjiang , Meng, Xin , Lu, Xin , Huang, Zuohua . High-temperature oxidation kinetics of iso-octane/n-butanol blends-air mixture . | ENERGY , 2017 , 133 , 443-454 .
Export to NoteExpress RIS BibTex
Experimental and kinetic study of pentene isomers and n-pentane in laminar flames EI SCIE Scopus
期刊论文 | 2017 , 36 (1) , 1279-1286 | PROCEEDINGS OF THE COMBUSTION INSTITUTE | IF: 5.336
WoS CC Cited Count: 7
Abstract&Keyword Cite

Abstract :

Laminar flame speeds of three pentene isomers (1-pentene, 2-pentene and 2-methyl-2-butene) and n-pentane are investigated at equivalence ratios of 0.7-1.6, initial pressures of 1-4 atm, and initial temperatures of 353-433 K using a constant volume combustion bomb. Results show that the laminar flame speeds increase in the order of 2-methyl-2-butene, n -pentane, 2-pentene, and 1-pentene. A recently published model on pentane isomers (NUI-PI) has been optimized by refining the submodels of the 1-pentene and 2-methyl-2-butene. This optimized model yields reasonable agreement with the experimental data except over-predictions for 2-pentene. The analysis indicates the discrepancy of laminar flame speeds between 1-pentene and n -pentane is mainly caused by the thermal effect, different from the discrepancy between 1-pentene and 2-methyl-2-butene which mainly results from the chemical kinetic effect. The kinetic effect is further investigated employing the sensitivity and reaction path analyses. The analyses reveal that 1-pentene generates the H-radical precursor ethyl radical, while 2-methyl-2-butene produces large amount of the H-consuming branching intermediates (IC4H8, AC(5)H(9)-C, CC5H9-B and B13DE2MJ) and presents the weaker H regenerating ability. In addition, compared with 1-pentene, 2-methyl-2-butene yields larger amount of methyl radical which would block the whole reaction process. (C) 2016 by The Combustion Institute. Published by Elsevier Inc.

Keyword :

Chemical kinetics Pentene isomers Laminar flame speed n-Pentane

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Cheng, Yu , Hu, Erjiang , Lu, Xin et al. Experimental and kinetic study of pentene isomers and n-pentane in laminar flames [J]. | PROCEEDINGS OF THE COMBUSTION INSTITUTE , 2017 , 36 (1) : 1279-1286 .
MLA Cheng, Yu et al. "Experimental and kinetic study of pentene isomers and n-pentane in laminar flames" . | PROCEEDINGS OF THE COMBUSTION INSTITUTE 36 . 1 (2017) : 1279-1286 .
APA Cheng, Yu , Hu, Erjiang , Lu, Xin , Li, Xiaotian , Gong, Jing , Li, Qianqian et al. Experimental and kinetic study of pentene isomers and n-pentane in laminar flames . | PROCEEDINGS OF THE COMBUSTION INSTITUTE , 2017 , 36 (1) , 1279-1286 .
Export to NoteExpress RIS BibTex
Influence of Combustion Chamber on Natural Gas Engine Performance and Optimization EI Scopus CSCD PKU
期刊论文 | 2017 , 35 (3) , 215-222 | Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)
Abstract&Keyword Cite

Abstract :

AVL Fire numerical simulation software was used to make the optimal design of combustion chamber on a natural gas engine. Based on the analysis of combustion chamber configuration, two optimized combustion chambers were obtained. Based on the analysis of heat release rate, turbulent kinetic energy and velocity fields, it is found that reducing the combustion bowl diameter is conducive to enhance the tumble and swirl flow motion, thus accelerates the combustion process due to the increase of the turbulent kinetic energy and gas velocity. However, the small convex platform in the optimized scheme I increases the energy dissipation of intake gas, leading to a lower turbulent kinetic energy at ignition timing, and there was no improvement in the flame development duration, while the rapid combustion duration has been speeded up under the effect of squish flow. Bench test work shows that the optimized chamber II decreases by 2.9% in brake specific gas consumption and an average of 18.3℃ reduction of exhaust temperature. Furthermore, the optimizing calibration results show that brake specific gas consumption of the optimized scheme II has improved by 1.5% than the original combustion chamber in the case of same nitrogen oxides emissions. © 2017, Editorial Office of the Transaction of CSICE. All right reserved.

Keyword :

Combustion duration Combustion pro-cess Exhaust temperature Heat Release Rate (HRR) Nitrogen oxides emission Numerical simulation software Spark ignition Turbulent kinetic energy

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Han, Xudong , Huang, Zuohua , Chen, Qinxue et al. Influence of Combustion Chamber on Natural Gas Engine Performance and Optimization [J]. | Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) , 2017 , 35 (3) : 215-222 .
MLA Han, Xudong et al. "Influence of Combustion Chamber on Natural Gas Engine Performance and Optimization" . | Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) 35 . 3 (2017) : 215-222 .
APA Han, Xudong , Huang, Zuohua , Chen, Qinxue , Yang, Qiang , Xiong, Jie , Yang, Xing . Influence of Combustion Chamber on Natural Gas Engine Performance and Optimization . | Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) , 2017 , 35 (3) , 215-222 .
Export to NoteExpress RIS BibTex
Experimental and kinetic study on ignition delay times of 2, 5-DMF/n-heptane blends EI Scopus CSSCI-E
会议论文 | 2017 | 9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017
Abstract&Keyword Cite

Abstract :

Ignition delay times of 2, 5-dimethylfuran(2, 5-DMF)/n-heptane/oxygen/argon mixtures were measured in this study. Experiments were performed at the stoichiometric mixtures in the temperature range of 1200-1800K. A blend model for 2, 5-DMF/n-heptane blends was developed by combining two selected models for each individual fuel component. According to the combined model, the ignition delay time increases with an increase in the 2, 5-DMF addition level, non-linearly. Kinetic analysis was conducted to investigate interaction effects between two fuels. At relatively low blending ratios of 2, 5-DMF, the two fuels have negligible impacts on the reaction path of each other. As the 2, 5-DMF addition increases to relatively higher levels, decomposition path of n-heptane is significantly changed due to the competition for small radical. Copyright © 2017 by the Japan Society of Mechanical Engineers.

Keyword :

2,5-DMF Ignition delay time Ignition delays Interaction effect Kinetic modeling n-Heptanes Stoichiometric mixtures Temperature range

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Hu, Erjiang , Gao, Zhenhua , Ku, Jinfeng et al. Experimental and kinetic study on ignition delay times of 2, 5-DMF/n-heptane blends [C] . 2017 .
MLA Hu, Erjiang et al. "Experimental and kinetic study on ignition delay times of 2, 5-DMF/n-heptane blends" . (2017) .
APA Hu, Erjiang , Gao, Zhenhua , Ku, Jinfeng , Meng, Xin , Huang, Zuohua . Experimental and kinetic study on ignition delay times of 2, 5-DMF/n-heptane blends . (2017) .
Export to NoteExpress RIS BibTex
Shock tube measurement and simulation of DME/n-butane/air mixtures: Effect of blending in the NTC region EI SCIE Scopus
期刊论文 | 2017 , 203 , 316-329 | FUEL | IF: 4.908
WoS CC Cited Count: 3 SCOPUS Cited Count: 6
Abstract&Keyword Cite

Abstract :

In this study, the ignition delay times of lean and stoichiometric DME/n-butane/air mixtures were measured behind reflected shock waves at pressures of 2 and 10 atm, temperatures from 650 to 1400 K. The performances of several chemical kinetic models were evaluated. Numerical simulation and chemical kinetic analysis were conducted in a broad temperature range and at various DME blending ratios to understand the interactions between DME and n-butane. It is found that DME addition can promote both the first-stage and overall ignition delay of n-butane in the NTC region. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword :

Ignition delay time Binary fuel DME n-Butane Chemical kinetic

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Jiang, Xue , Tian, Zemin , Zhang, Yingjia et al. Shock tube measurement and simulation of DME/n-butane/air mixtures: Effect of blending in the NTC region [J]. | FUEL , 2017 , 203 : 316-329 .
MLA Jiang, Xue et al. "Shock tube measurement and simulation of DME/n-butane/air mixtures: Effect of blending in the NTC region" . | FUEL 203 (2017) : 316-329 .
APA Jiang, Xue , Tian, Zemin , Zhang, Yingjia , Huang, Zuohua . Shock tube measurement and simulation of DME/n-butane/air mixtures: Effect of blending in the NTC region . | FUEL , 2017 , 203 , 316-329 .
Export to NoteExpress RIS BibTex
Single-valued prediction of markers on heat release rate for laminar premixed biogas-hydrogen and methane-hydrogen flames EI SCIE Scopus
期刊论文 | 2017 , 133 , 35-45 | ENERGY | IF: 4.968
WoS CC Cited Count: 3 SCOPUS Cited Count: 4
Abstract&Keyword Cite

Abstract :

Numerical studies on the 1-D laminar premixed flame were conducted utilizing the detailed mechanisms to evaluate the validity of several heat release rate (HRR) markers for the single-valued prediction on the HRR in a wide range of conditions. The biogas and methane with hydrogen enrichment are used as the fuel. The peak-to-peak correlation and the peak-to-integrated correlation of considered markers and HRR in premixed flames were established to examine their sensitivity to the equivalence ratio and the fuel composition. For both premixed biogas and methane flames considered, the O x CH3 product has the almost constant correlation with peak or total HRR at different conditions. Thus the O x CH3 product is suggested as the most reliable indicator for the HRR imaging in the unstretched premixed flames with the unknown equivalence ratio. HCO is demonstrated to be a reliable marker in the premixed combustion, while the OH x CH2O, H x CH2O and H x HO2 products are inadequate for the single-valued prediction on the HRR because their correlations with HRR are sensitive to the equivalence ratio, indicating that these markers cannot reflect the HRR change accurately if the local equivalence ratio is affected. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword :

Single-valued prediction Flame markers Heat release rate imaging Premixed combustion

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wei, Z. L. , Leung, C. W. , Cheung, C. S. et al. Single-valued prediction of markers on heat release rate for laminar premixed biogas-hydrogen and methane-hydrogen flames [J]. | ENERGY , 2017 , 133 : 35-45 .
MLA Wei, Z. L. et al. "Single-valued prediction of markers on heat release rate for laminar premixed biogas-hydrogen and methane-hydrogen flames" . | ENERGY 133 (2017) : 35-45 .
APA Wei, Z. L. , Leung, C. W. , Cheung, C. S. , Huang, Z. H. . Single-valued prediction of markers on heat release rate for laminar premixed biogas-hydrogen and methane-hydrogen flames . | ENERGY , 2017 , 133 , 35-45 .
Export to NoteExpress RIS BibTex
Experimental and numerical study on the emission characteristics of laminar premixed biogas-hydrogen impinging flame EI SCIE Scopus
期刊论文 | 2017 , 195 , 1-11 | FUEL | IF: 4.908
WoS CC Cited Count: 4 SCOPUS Cited Count: 4
Abstract&Keyword Cite

Abstract :

The total emissions (EICO, EINOx, EINO2 and NO2/NOx ratio) of laminar premixed biogas-hydrogen impinging flame were obtained experimentally while a computational model was developed to calculate the impinging flame. The NO amount produced via different routes (thermal, prompt, NNH and N2O routes) were isolated and calculated in the simulation. The effects of separated distance and equivalence ratio on the emission formation were discussed quantitatively. The results are summarized as follows. The lower values of EICO at small and large H are caused by the weakened fuel oxidization and improved CO oxidization, respectively, and the EICO is increased with phi owing to the increasingly incomplete fuel oxidization. The NO amounts of thermal, prompt, NNH and N2O routes and their contributions on total NO are affected considerably by the separated distance. The decreased prompt NO with H leads to the initial drop of EINOx at fuel-rich condition. The thermal NO and NNH route dominate the NO formation at phi = 0.8 and 1.0, while the contribution of prompt NO is improved significantly at fuel -rich condition. The rising trend of EINOx with phi is primarily predominated by the enhanced prompt NO. As H is enhanced, the rising and dropping trends of EINO2, as well as NO2/NOx ratio, are caused by more intensive air entrainment, promoting the NO2 formation, and the extended high temperature region, accelerating the NO formation and the NO2 destruction, respectively. The enhanced EINO2 with phi is primarily caused by the increased H atom in the air mixing region to promote the HO2 formation. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword :

NO formation Total emissions NO2 production Biogas-hydrogen fuel Flame impingement

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wei, Z. L. , Zhen, H. S. , Leung, C. W. et al. Experimental and numerical study on the emission characteristics of laminar premixed biogas-hydrogen impinging flame [J]. | FUEL , 2017 , 195 : 1-11 .
MLA Wei, Z. L. et al. "Experimental and numerical study on the emission characteristics of laminar premixed biogas-hydrogen impinging flame" . | FUEL 195 (2017) : 1-11 .
APA Wei, Z. L. , Zhen, H. S. , Leung, C. W. , Cheung, C. S. , Huang, Z. H. . Experimental and numerical study on the emission characteristics of laminar premixed biogas-hydrogen impinging flame . | FUEL , 2017 , 195 , 1-11 .
Export to NoteExpress RIS BibTex
Experimental study on the effect of injector nozzle K factor on the spray characteristics in a constant volume chamber: Near nozzle spray initiation, the macroscopic and the droplet statistics EI SCIE Scopus
期刊论文 | 2017 , 202 , 583-594 | FUEL | IF: 4.908
WoS CC Cited Count: 3 SCOPUS Cited Count: 4
Abstract&Keyword Cite

Abstract :

In this work, the effects of the injector K factor on the spray characteristics have been investigated by using a high pressure common rail injection system and a constant volume chamber. The near nozzle region spray tip behavior, the spray macroscopic characteristics, and the droplet statistics in a fixed spray location is sequentially examined. Specifically, in the near nozzle region, laser pulse illumination and microscopic imaging technique was used to capture the very initial spray evolution morphology and it is found to take on the form of a mushroom like structure which quickly breaks up. Increasing K factor advances the spray tip evolution and favors the formation of the shockwave which might be caused the accelerated nozzle inner flow. For different K factor nozzles, the spray tip penetration (STP) evolution before the primary breakup is all found to include two sub-stages: in the very initial stage when the needle valve open is relatively small, the breakup of the mushroom like tip results in a slightly decelerated STP evolution. Subsequently, when the needle valve is fully opened, the STP evolution is gradually accelerated by the increased mass flux. The classic Hiroyasu and Arai [1] empirical model, which shows constant STP evolution speed before the primary breakup, is then refined to account this unsteady STP evolution behavior. Secondly, the spray macroscopic behavior data such as the spray tip penetration and the spray cone angle from varying K factor nozzles were collected by high speed visualization. It is found that as the K factor is increased, the STP evolution is accelerated and spray cone angle decreases. The classic model for the STP by Hiroyasu and Arai [1] which is applied K = 0 nozzle was extended to accommodate the effect of K factor on the STP evolution after the primary breakup and the revised empirical model show perfect performance in predicting the STP behavior after the primary breakup for all different K factor nozzles. Finally, by using the particle/droplet image analysis (PDIA) system, the droplet statistics and the Sauter Mean Diameter (SMD) that characterize the atomization behavior at a certain spray location were obtained. It is seen that high K factor nozzle yields a slightly smaller SMD and it's believed to enhance the atomization process. However, our experimental results show that this K nozzle effect is relatively weak and it vanishes for nozzles with larger outlet diameter. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword :

Droplet statistics Near nozzle spray morphology K factor Diesel spray macroscopic characteristics

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Tang, Chenglong , Feng, Zehao , Zhan, Cheng et al. Experimental study on the effect of injector nozzle K factor on the spray characteristics in a constant volume chamber: Near nozzle spray initiation, the macroscopic and the droplet statistics [J]. | FUEL , 2017 , 202 : 583-594 .
MLA Tang, Chenglong et al. "Experimental study on the effect of injector nozzle K factor on the spray characteristics in a constant volume chamber: Near nozzle spray initiation, the macroscopic and the droplet statistics" . | FUEL 202 (2017) : 583-594 .
APA Tang, Chenglong , Feng, Zehao , Zhan, Cheng , Ma, Wen'an , Huang, Zuohua . Experimental study on the effect of injector nozzle K factor on the spray characteristics in a constant volume chamber: Near nozzle spray initiation, the macroscopic and the droplet statistics . | FUEL , 2017 , 202 , 583-594 .
Export to NoteExpress RIS BibTex
10| 20| 50 per page
< Page ,Total 56 >

Export

Results:

Selected

to

Format:
FAQ| About| Online/Total:2299/51353403
Address:XI'AN JIAOTONG UNIVERSITY LIBRARY(No.28, Xianning West Road, Xi'an, Shaanxi Post Code:710049) Contact Us:029-82667865
Copyright:XI'AN JIAOTONG UNIVERSITY LIBRARY Technical Support:Beijing Aegean Software Co., Ltd.