scholarly journals Gas fuel combustion and related problems

2021 ◽  
Vol 2061 (1) ◽  
pp. 012059
Author(s):  
VA Bashkatov ◽  
SA Khudyakov ◽  
AV Ignatenko
Keyword(s):  
Combustion Chamber ◽  
High Temperature Oxidation ◽  
Wide Spread ◽  
Flame Spreading ◽  
Temperature Oxidation ◽  
Chain Reactions ◽  
Valence Electrons ◽  
Gas Fuel ◽  
Definition Of ◽  
Physical And Chemical

Abstract Combustion, as it is well known, is based on chemical reactions. If we look at a clear scientific definition of the term “combustion”, then combustion will be a process of rapid high-temperature oxidation, combining physical and chemical phenomena. Combustion consists of a large number of elementary redox processes leading to the redistribution of valence electrons between atoms of interacting substances.Modern theories of combustion relate flame spreading in gases to chemical chain reactions[1]. Nowadays, in a view of the wide spread of gas, understanding of a ship fuel and analysis of gas related problems of combustion are more and more critical. Gas itself is not able to ignite in a combustion chamber as a conventional fuel just because of compression and temperature rising. It requires a strong and efficient source of fire. The article is focused on analyzing igniting, flame spreading and detonation in a combustion chamber. The detonation condition was assessed in case of using gas as ships fuel.

Ignition Temperature and Stable Combustion Temperature of the In Situ Combustion Process

2012 ◽  
Vol 268-270 ◽  
pp. 534-537
Author(s):  
Da Zi Qu ◽  
Yong Jian Liu ◽  
Ke Ming Xu ◽  
Long Dong ◽  
Wei Wei Liu
Keyword(s):  
High Temperature ◽  
Ignition Temperature ◽  
High Temperature Oxidation ◽  
Combustion Temperature ◽  
Combustion Process ◽  
Empirical Parameter ◽  
Temperature Oxidation ◽  
Stable Combustion ◽  
Definition Of

The paper focuses on the high-temperature oxidation of a crude oil in a forward in-situ combustion process. The reaction conforms to Arrhenius prescription. Based on Semenov’s definition of ignition, equations for calculating the ignition temperature and stable combustion temperature are derived from the heat balance of the high-temperature oxidation. With previous experimental data, an average empirical parameter of the equations is calculated and two predictive equations are got. It’s concluded from the equations that these two temperatures of the reaction are only dependent on crude properties, and other factors in the reservoir have little influence on them.

A microscopic marker experiment study on high temperature oxidation of Ni-Al alloy

1986 ◽  
Vol 44 ◽  
pp. 514-515
Author(s):  
Shou-kong Fan
Keyword(s):  
Transport Mechanism ◽  
High Temperature Oxidation ◽  
Transverse Section ◽  
Al Alloy ◽  
Metal Interface ◽  
Electron Microscopic ◽  
Temperature Oxidation ◽  
Analytical Electron ◽  
Microscopic Studies ◽  
First Time

Transmission and analytical electron microscopic studies of scale microstructures and microscopic marker experiments have been carried out in order to determine the transport mechanism in the oxidation of Ni-Al alloy. According to the classical theory, the oxidation of nickel takes place by transport of Ni cations across the scale forming new oxide at the scale/gas interface. Any markers deposited on the Ni surface are expected to remain at the scale/metal interface after oxidation. This investigation using TEM transverse section techniques and deposited microscopic markers shows a different result,which indicates that a considerable amount of oxygen was transported inward. This is the first time that such fine-scale markers have been coupled with high resolution characterization instruments such as TEM/STEM to provide detailed information about evolution of oxide scale microstructure.

Behaviour of copper during the high temperature oxidation of steels produced by the electric furnace route

2003 ◽  
Vol 100 (1) ◽  
pp. 73-82
Author(s):  
Y. Riquier ◽  
D. Lassance ◽  
I. Li ◽  
J. M. Detry ◽  
A. Hildenbrand
Keyword(s):  
High Temperature ◽  
Electric Furnace ◽  
High Temperature Oxidation ◽  
Temperature Oxidation

High Temperature Oxidation Behaviors of Fe-Cr-Al Based Powder Porous Metal and a Strip

2013 ◽  
Vol 51 (10) ◽  
pp. 743-751 ◽  
Author(s):  
Seon-Hui Lim ◽  
Jae-Sung Oh ◽  
Young-Min Kong ◽  
Byung-Kee Kim ◽  
Man-Ho Park ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Oxidation ◽  
Porous Metal ◽  
Temperature Oxidation ◽  
Oxidation Behaviors

Effect of CaO Addition on the High-Temperature Oxidation of Mg Alloys

2016 ◽  
Vol 54 (6) ◽  
pp. 390-399 ◽  
Author(s):  
Dong Bok Lee ◽  
Shae Kwang Kim ◽  
Soon Yong Park
Keyword(s):  
High Temperature ◽  
High Temperature Oxidation ◽  
Mg Alloys ◽  
Temperature Oxidation

A Unifying Principle for a Researcher Learning Safety: Reduce Uncertainty!

2018 ◽  
Author(s):  
Camilla Kao ◽  
Russell Furr
Keyword(s):  
Decision Making ◽  
Best Practices ◽  
Mission Statement ◽  
Safety Information ◽  
Health And Safety ◽  
Mission Statements ◽  
Definition Of ◽  
Physical And Chemical

Conveying safety information to researchers is challenging. A list of rules and best practices often is not remembered thoroughly even by individuals who want to remember everything. Researchers in science thinking according to principles: mathematical, physical, and chemical laws; biological paradigms. They use frameworks and logic, rather than memorization, to achieve the bulk of their work. Can safety be taught to researchers in a manner that matches with how they are trained to think? Is there a principle more defined than "Think safety!" that can help researchers make good decisions in situations that are complex, new, and demanding?<div><br></div><div>Effective trainings in other professions can arise from the use of a mission statement that participants internalize as a mental framework or model for future decision-making. We propose that mission statements incorporating the concept of <b>reducing uncertainty</b> could provide such a framework for learning safety. This essay briefly explains the definition of <b>uncertainty</b> in the context of health and safety, discusses the need for an individual to <b>personalize</b> a mission statement in order to internalize it, and connects the idea of <b>greater control</b> over a situation with less uncertainty with respect to safety. The principle of reducing uncertainty might also help <b>non-researchers</b> think about safety. People from all walks of life should be able to understand that more control over their situations provides more protection for them, their colleagues, and the environment.</div>

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