Radiation flame front in a gas mixture with solid particles

1975 ◽  
Vol 14 (3) ◽  
pp. 363-370
Author(s):  
P. B. Vainshtein
Keyword(s):  
Flame Front ◽  
Solid Particles ◽  
Gas Mixture

scholarly journals Prospects for the application of radiometric methods in the measurement of two-phase flows

2018 ◽  
Vol 180 ◽  
pp. 01001
Author(s):  
Marcin Zych
Keyword(s):  
Environmental Protection ◽  
Solid Phase ◽  
Life Sciences ◽  
Solid Particles ◽  
Gas Mixture ◽  
Gas Flows ◽  
Mathematical Methods ◽  
Two Phase Flows ◽  
Two Phase ◽  
Phase Mixture

The article constitutes an overview of the application of radiometric methods in the research of two-phase flows: liquid-solid particles and liquid-gas flows. The methods which were used were described on the basis of the experiments which were conducted in the Water Laboratory of the Wrocław University of Environmental and Life Sciences and in the Sedimentological Laboratory of the Faculty of Geology, Geophysics and Environmental Protection, AGH-UST in Kraków. The advanced mathematical methods for the analysis of signals from scintillation probes that were applied enable the acquisition of a number of parameters associated with the flowing two-phase mixture, such as: average velocities of the particular phases, concentration of the solid phase, and void fraction for a liquid-gas mixture. Despite the fact that the application of radioactive sources requires considerable carefulness and a number of state permits, in many cases these sources become useful in the experiments which are presented.

Effect of inert solid particles on detonation of a combustible gas mixture

1975 ◽  
Vol 11 (6) ◽  
pp. 774-778 ◽  
Author(s):  
A. A. Borisov ◽  
B. E. Gel'fand ◽  
S. A. Gubin ◽  
S. M. Kogarko
Keyword(s):  
Solid Particles ◽  
Gas Mixture ◽  
Combustible Gas ◽  
Combustible Gas Mixture

Air Purification from CO2 Gas Using a Scrubber and Suggestions to Reach a Better Efficiency

2019 ◽  
Vol 955 ◽  
pp. 1-6 ◽  
Author(s):  
Jaroslav Vlasák ◽  
Tomáš Svěrák ◽  
Lukáš Dreveny ◽  
Josef Kalivoda
Keyword(s):  
Solid Particles ◽  
Capture Efficiency ◽  
Air Purification ◽  
Gas Mixture ◽  
University Of Technology ◽  
Wet Scrubber

This thesis deals with the testing of our wet scrubber by a laboratory at the Faculty of Chemistry, Brno University of Technology. On this wet scrubber, the CO2 capture efficiency is tested with a splash liquid consisting of 1 % NaOH. An overview of the system, which could increase the capture efficiency of CO2 from the gas mixture or other harmful particulates in the air, could be improved after introduction. The thesis also deals with finding methods to better capture efficiency of solid particles and gases on the wet scrubber.

scholarly journals Влияние начальных условий на скорость фронта ламинарного пламени в газовых смесях

2021 ◽  
Vol 91 (2) ◽  
pp. 247
Author(s):  
В.В. Володин ◽  
В.В. Голуб ◽  
А.Е. Ельянов
Keyword(s):  
Flame Front ◽  
Laminar Flame ◽  
Combustible Mixture ◽  
Mixture Composition ◽  
Gas Mixture ◽  
Constant Composition ◽  
Planar Front ◽  
Spherical Flames ◽  
Laminar Flame Front ◽  
Sivashinsky Equation

The scatter in laminar flame front speed caused by both an error in the composition of the combustible mixture and initial disturbances is reported. It's shown how the configuration of the initially planar front in laminar flame initial disturbances in a gas mixture of the same composition affects the scatter of speeds of expanding spherical flames. The experimental results previously obtained by the authors, demonstrating the scatter in the speed of the laminar flame front in an initially quiescent gas mixture of constant composition under the same conditions, are explained by integrating the Sivashinsky equation with various initial disturbances. The influence of combustible mixture composition errors on the parameters determining the speed of the flame front is analyzed. These parameters were recalculated for a possible scatter in the mixture composition, obtained based on data on the accuracy of the equipment used in previously published experiments.

Abrasive wear of polymer/steel gear drives

2008 ◽  
Vol 4 (1) ◽  
pp. 1-26
Author(s):  
Gábor Kalácska
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Material Selection ◽  
Solid Particles ◽  
Soil Types ◽  
General View ◽  
Modern Engineering ◽  
Clean Environment ◽  
Engineering Polymers ◽  
Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

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