Effect of gas generator pressure on the physicochemical, oxidation and combustion characteristics of boron-based propellant primary combustion products

2017 ◽  
Vol 129 (3) ◽  
pp. 1865-1874 ◽  
Author(s):  
Wen Ao ◽  
Yang Wang
Keyword(s):  
Combustion Products ◽  
Combustion Characteristics ◽  
Gas Generator ◽  
Primary Combustion Products

EFFECT OF BORON ON THE COMBUSTION CHARACTERISTICS OF METALLIZED HIGH-ENERGY MATERIALS

2020 ◽  
Author(s):  
A. Korotkikh ◽  
◽  
I. Sorokin ◽  
◽  
Keyword(s):  
Specific Impulse ◽  
Equilibrium Composition ◽  
Combustion Products ◽  
High Energy ◽  
Combustion Characteristics ◽  
Solid Propellants ◽  
Energy Materials ◽  
High Energy Materials ◽  
Condensed Combustion Products ◽  
Active Fuel Binder

The paper presents the results of thermodynamic calculations of the effect of pure boron additives on combustion characteristics of high-energy materials (HEM) based on ammonium perchlorate, ammonium nitrate, active fuel-binder, and powders of aluminum Al, titanium Ti, magnesium Mg, and boron B. The combustion parameters and the equilibrium composition of condensed combustion products (CCPs) of HEM model compositions were obtained with thermodynamic calculation program “Terra.” The compositions of solid propellants with different ratios of metals (Al/B, Ti/B, Mg/B, and Al/Mg/B) were considered. The combustion temperature Tad in a combustion chamber, the vacuum specific impulse J at the nozzle exit, and the mass fraction ma of the CCPs for HEMs were determined.

Composition of solid and gaseous primary combustion products of boron-based fuel-rich propellant

2021 ◽  
Author(s):  
Peihui Xu ◽  
Jianzhong Liu ◽  
Linqing Zhang ◽  
Jifei Yuan ◽  
Minggang Song ◽  
...  
Keyword(s):  
Combustion Products ◽  
Primary Combustion Products

scholarly journals APPLICATION OF METHODS OF ASSOCIATED PETROLEUM GAS UTILIZATION FOR THE EASTERN SIBERIA

2016 ◽  
pp. 93-97
Author(s):  
D. G. Lapin ◽  
D. A. Fomin ◽  
B. B. Kvesko
Keyword(s):  
Oil And Gas ◽  
Combustion Products ◽  
Oil Reservoir ◽  
Eastern Siberia ◽  
Gas Generator ◽  
Associated Petroleum Gas ◽  
Associated Gas ◽  
Gas Utilization ◽  
Oil And Gas Companies ◽  
Theoretical Amount

The article considers the most effective and environmentally friendly methods of utilization of associated petroleum gas (APG) for advanced oil and gas companies, as well as the developed method of utilization of associated gas using downhole steam-gas generator. The downhole steamgas generator burns APG at the bottomhole in the combustion chamber, and the combustion products - nitrogen and carbon dioxide - are supplied to the oil reservoir. A method for calculating the theoretical amount of air and combustion products is proposed.

Factors Affecting the Primary Combustion Products of Boron-Based Fuel-Rich Propellants

2017 ◽  
Vol 33 (2) ◽  
pp. 333-337 ◽  
Author(s):  
Lin-lin Liu ◽  
Guo-Qiang He ◽  
Ying-Hong Wang ◽  
Song-Qi Hu ◽  
Yuan-Min Liu
Keyword(s):  
Combustion Products ◽  
Factors Affecting ◽  
Primary Combustion Products

MESOSCALE EXPERIMENTS HELP TO EVALUATE IN-SITU BURNING OF OIL SPILLS1

1993 ◽  
Vol 1993 (1) ◽  
pp. 755-760
Author(s):  
David D. Evans ◽  
William D. Walton ◽  
Howard R. Baum ◽  
Kathy A. Notarianni ◽  
Edward J. Tennyson ◽  
...  
Keyword(s):  
Crude Oil ◽  
Combustion Products ◽  
Coast Guard ◽  
Effective Diameter ◽  
Smoke Plume ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Particulate Deposition ◽  
Primary Combustion Products

ABSTRACT Burning of spilled oil has distinct advantages over other cleanup countermeasures. It offers the potential to convert rapidly large quantities of oil into its primary combustion products, carbon dioxide and water, with a small percentage of other unburned and residue byproducts. Disadvantages include the dispersal of the combustion products into the air. Mesoscale and laboratory experiments have been conducted to measure the burning characteristics of crude oil fires. Measurements on crude oil pool fires from 0.4 m to 17.2 m in effective diameter were made to obtain data on the rate of burning, heat release rate, composition of the combustion products, and downwind dispersion of the products. The smaller experiments were performed in laboratories at the National Institute of Standards and Technology and the Fire Research Institute in Japan; and the larger ones at the U. S. Coast Guard Fire Safety and Test Detachment in Mobile, Alabama. From these experiments, the value for surface regression rate of a burning crude oil spill was found to be 0.055 mm/s. A major concern for public safety is the content and extent of the smoke plume from the fires. Smoke yield, the fraction of the oil mass burned that is emitted as particulate, was found to be 13 percent. A large-eddy simulation calculation method for smoke plume trajectory and smoke particulate deposition developed by NIST showed that the smoke particulate deposition from a 114 m2 burn would occur in striations over a long, slender area 3.2 km wide and 258 km downwind of the burn.

Composition and characteristics of primary combustion products of boron-based propellants

2017 ◽  
Vol 53 (1) ◽  
pp. 55-64 ◽  
Author(s):  
J. Liu ◽  
D. Liang ◽  
J. Xiao ◽  
B. Chen ◽  
Ya. Zhang ◽  
...  
Keyword(s):  
Combustion Products ◽  
Primary Combustion Products

scholarly journals Study on Boron-bead Combustion Characteristics for High Energy Gas Generator

2014 ◽  
Vol 18 (4) ◽  
pp. 26-32
Author(s):  
Doo-Hee Han ◽  
Jeong-Seok Kang ◽  
Jun-Su Shin ◽  
Hong-Gye Sung ◽  
Kyung-Hoon Shin ◽  
...  
Keyword(s):  
High Energy ◽  
Combustion Characteristics ◽  
Gas Generator

Study and Development of the Components of Gas Generator Compositions Based on the Ammonium Nitrate to Improve Blasting Operations Safety

2021 ◽  
pp. 47-52
Author(s):  
D.A. Bayseytov ◽  
◽  
M.I. Tulepov ◽  
Zh.A. Amir ◽  
A.Ye. Orazbayev ◽  
...  
Keyword(s):  
Ammonium Nitrate ◽  
Aluminum Powder ◽  
High Explosive ◽  
Low Cost ◽  
Combustion Products ◽  
Gas Generator ◽  
Toxic Gases ◽  
Carbon Black Powder ◽  
Urgent Task ◽  
Low Sensitivity

The article is devoted to the study and development of the components of gas generator compositions based on the ammonium nitrate to improve safety of blasting operations. This is primarily due to the low cost of ammonium nitrate, low sensitivity to mechanical and detonation effects and a significantly lower content of harmful compounds in the combustion products compared to the analogues. PA-4 aluminum powder was used as fuel, carbon black powder — as a gas-forming agent. The effect was studied concerning different amounts of aluminum powder on the combustion characteristics of a gas generator composition based on the ammonium nitrate. Calculated and experimental data showed that it is unreasonable to introduce more than 5 % of aluminum into the composition. According to the results of the conducted study, a gas generator composition based on the ammonium nitrate was developed to increase blasting operations efficiency and safety. Laboratory and polygon studies confirmed the efficiency and safety of using gas generator compositions at the destruction of stone. Destruction of the stone occurred without scattering of individual fragments, formation, and propagation of an air shock wave. Thus, the urgent task is to ensure blasting operations safety using gas generator compositions, which will allow to eliminate the formation of harmful, toxic gases and the high explosive effect.

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