The study on combustion mechanism of methanol and diesel micro-emulsion in engine

2011 ◽  
Author(s):  
Qinghui Zhou ◽  
Qingbo Li ◽  
Wei Ji
Keyword(s):  
Combustion Mechanism ◽  
Micro Emulsion

The Study on Combustion Mechanism of Methanol and Diesel Micro-Emulsion in Engine

2012 ◽  
Vol 424-425 ◽  
pp. 1237-1243
Author(s):  
Qing Hui Zhou ◽  
Qing Bo Li ◽  
Wei Ji
Keyword(s):  
Diesel Engine ◽  
Combustion Process ◽  
Chemical Kinetic ◽  
Delay Period ◽  
Combustion Mechanism ◽  
Cylinder Pressure ◽  
Combustion Duration ◽  
Micro Emulsion ◽  
Process Product ◽  
Ignition Delay Period

Based on S195 diesel engine, the cylinder pressure of different methanol and diesel micro-emulsion were mea sured, and Chemical Kinetic was analyzed. The result showed that the max combustion pressure was added and the heat release was reduced by the methanol increase. The reason was that the different methanol content could effect the combustion process product such as CH2O，H2O2，O，OH，H, and effect ignition delay period and combustion duration period, and accordingly effect power and emission.

Computational modeling of high pressure combustion mechanism in scram accelerator

2000 ◽  
Vol 10 (PR11) ◽  
pp. Pr11-131-Pr11-141 ◽  
Author(s):  
J.-Y. Choi ◽  
B.-J. Lee ◽  
I.-S. Jeung
Keyword(s):  
High Pressure ◽  
Computational Modeling ◽  
Combustion Mechanism

Multi-Million Atoms Molecular Dynamics Study of Combustion Mechanism of Aluminum Nanoparticle

2008 ◽  
Author(s):  
Weiqiang Wang ◽  
Richard Clark ◽  
Aiichiro Nakano ◽  
Rajiv K. Kalia ◽  
Priya Vashishta
Keyword(s):  
Molecular Dynamics ◽  
Combustion Mechanism

Combustion Mechanism Downstream of a Cavity Flameholder Interacting with an Incident Shock Wave in Supersonic Flow

2016 ◽  
Vol 64 (2) ◽  
pp. 97-103
Author(s):  
Hideaki KOBAYASHI ◽  
Yumi ISHIMOTO ◽  
Taku KUDO ◽  
Akihiro HAYAKAWA
Keyword(s):  
Shock Wave ◽  
Supersonic Flow ◽  
Incident Shock ◽  
Incident Shock Wave ◽  
Combustion Mechanism

Combustion Driven by Fragment-based Ab Initio Molecular Dynamics Simulation

2019 ◽  
Author(s):  
Liqun Cao ◽  
Jinzhe Zeng ◽  
Mingyuan Xu ◽  
Chih-Hao Chin ◽  
Tong Zhu ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Large Scale ◽  
Methane Combustion ◽  
Combustion Method ◽  
Dynamics Simulation ◽  
Ab Initio Molecular Dynamics ◽  
Computational Time ◽  
Combustion Mechanism ◽  
Daily Lives

Combustion is a kind of important reaction that affects people's daily lives and the development of aerospace. Exploring the reaction mechanism contributes to the understanding of combustion and the more efficient use of fuels. Ab initio quantum mechanical (QM) calculation is precise but limited by its computational time for large-scale systems. In order to carry out reactive molecular dynamics (MD) simulation for combustion accurately and quickly, we develop the MFCC-combustion method in this study, which calculates the interaction between atoms using QM method at the level of MN15/6-31G(d). Each molecule in systems is treated as a fragment, and when the distance between any two atoms in different molecules is greater than 3.5 Å, a new fragment involved two molecules is produced in order to consider the two-body interaction. The deviations of MFCC-combustion from full system calculations are within a few kcal/mol, and the result clearly shows that the calculated energies of the different systems using MFCC-combustion are close to converging after the distance thresholds are larger than 3.5 Å for the two-body QM interactions. The methane combustion was studied with the MFCC-combustion method to explore the combustion mechanism of the methane-oxygen system.

MACHINERY OPERATIONAL PROPERTY CONTROL DURING DIAMOND-ABRASIVE FINISHING USING ACTIVE SOTS

2020 ◽  
Vol 2020 (9) ◽  
pp. 13-17
Author(s):  
Yuriy Ryzhov ◽  
Svetlana Abramova
Keyword(s):  
Corrosion Inhibitors ◽  
Tribological Behavior ◽  
Surface Layers ◽  
Physical Chemical ◽  
Abrasive Finishing ◽  
Alloying Additives ◽  
Phosphorus Containing ◽  
Micro Emulsion ◽  
Property Control ◽  
Diamond Abrasive

There is carried out a number of experiments with the purpose of analyzing SOTS impact upon both finishing productivity, and physical-chemical state and tribological behavior of surfaces machined, and also a possibility for creation according to the results of the investigations carried out a relatively universal micro-emulsion SOTS based on existing in the Ukraine the line of oils, PAV, corrosion inhibitors, alloying additives etc. As SOTS samples there were used both well-known compouds, for example, Camix, Nope Right (USA), and carbamide having in its structure boron, boron-phosphorus-containing additive, water-solvable phosphate, tributyl phosphate (oil-solvable), concentrate SOTS tribol, having in its structure compounds of boron, nitrogen and phosphorous; ethylic ether of fatty acids; methyl ether of colza oil; Sarkozyl-O having in its structure easily-decomposable chlorine compounds. From the results obtained it is possible to draw a conclusion that during finishing in the environment of water-compatible SOTS an important role in the formation of the properties of the surface worked is played by hydrocarbon components and additives which contribute to the formation of the thinnest surface layers modified with carbon and oxygen.

Effects of Chlormequat-Uniconazole 30% Micro-Emulsion on Stem Physical and Chemical Characteristics of Rice

2013 ◽  
Vol 39 (6) ◽  
pp. 1089
Author(s):  
Qian ZHANG ◽  
Ming-Cai ZHANG ◽  
Hai-Yan ZHANG ◽  
Wei-Ming TAN ◽  
Zhao-Hu LI ◽  
...  
Keyword(s):  
Chemical Characteristics ◽  
Physical And Chemical Characteristics ◽  
Micro Emulsion ◽  
Physical And Chemical

Formulation and Evaluation of Fish Oil-based Rizatriptan Microemulsion for Intranasal Migraine Treatment

2015 ◽  
Vol 8 (3) ◽  
pp. 2972-2978
Author(s):  
Kanchan P Upadhye ◽  
Divya Senpal ◽  
Minakshee Nimbalwar ◽  
Gouri Dixit
Keyword(s):  
Fish Oil ◽  
Nasal Cavity ◽  
Residence Time ◽  
Stability Study ◽  
Migraine Treatment ◽  
Existence Region ◽  
Microemulsion Based Gel ◽  
Micro Emulsion ◽  
Pseudoternary Phase Diagram

In the present study microemulsion based intranasal gel of rizatriptan using fish oil was prepared for treatment and management of migraine to sustain the drug release and improve the drug residence time in nasal cavity. Fish oil is reported to have antimigraine activity hence it has been used in the present formulation along with cremophore EL as surfactant and Transcutol P as co-surfactant. The pseudoternary phase diagram plotted with these components shown the microemulsion existence region in ratio of (1:9-9:1) surfactant and co-surfactant. The optimized micro-emulsion contained fish oil (45.29%), cremophore E/transcutol P (2:1) and was characterized for pH (6.3±0.02), viscosity (114 ± 3.00cp), % transmittance (99.5 ± 1.01), refractive index (1.335±0.01),). The prepared microemulsion gels were optimized and characterized for in-vitro studies, pH, drug content, rheological studies and stability study. The release of rizatriptan from micro-emulsion gel prepared from carbopol 934 (98.01%) was found to be higher and prolonged than plain gel. Thus, microemulsion based gel was able to prolong drug releaseand improve drug residence time in the nasal cavity. 

Sensitization of TiO2 nanoparticles in micro-emulsion by photo-excited dye molecules: A femtosecond transient absorption study

2009 ◽  
Vol 204 (2-3) ◽  
pp. 209-216 ◽  
Author(s):  
Madhab C. Rath ◽  
Dipak K. Palit ◽  
Tulsi Mukherjee ◽  
Hirendra N. Ghosh
Keyword(s):  
Tio2 Nanoparticles ◽  
Transient Absorption ◽  
Dye Molecules ◽  
Absorption Study ◽  
Femtosecond Transient Absorption ◽  
Micro Emulsion
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