Mathematical Model for the Motion of Precipitated Dust Particles in a High-Efficiency Cyclone Dust Collector for Explosion-Hazardous Production

2017 ◽  
Vol 53 (3-4) ◽  
pp. 190-194
Author(s):  
A. V. Nekrasov ◽  
E. V. Romanyuk ◽  
D. V. Kargashilov
Keyword(s):  
Mathematical Model ◽  
High Efficiency ◽  
Dust Particles ◽  
Dust Collector ◽  
Cyclone Dust Collector ◽  
Hazardous Production

scholarly journals MATHEMATICAL MODEL OF TURBULENT MOVEMENT OF THE DUSTED AIR FLOW IN A CYCLONE DUST COLLECTOR

2016 ◽  
Vol 26 (8) ◽  
pp. 308-315
Author(s):  
Yu.R. Dadak ◽  
L.O. Tysovskyi ◽  
A.V. Lyashenyk
Keyword(s):  
Mathematical Model ◽  
Air Flow ◽  
Dust Collector ◽  
Cyclone Dust Collector

scholarly journals Comprehensive Parameters Identification and Dynamic Model Validation of Interior-Mount Line-Start Permanent Magnet Synchronous Motors

Machines ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 4 ◽  
Author(s):  
Luqman S. Maraaba ◽  
Zakariya M. Al-Hamouz ◽  
Abdulaziz S. Milhem ◽  
Ssennoga Twaha
Keyword(s):  
Mathematical Model ◽  
Permanent Magnet ◽  
High Efficiency ◽  
Experimental Tests ◽  
Induction Machines ◽  
Test Methods ◽  
Operating Conditions ◽  
Test Method ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors

The application of line-start permanent magnet synchronous motors (LSPMSMs) is rapidly spreading due to their advantages of high efficiency, high operational power factor, being self-starting, rendering them as highly needed in many applications in recent years. Although there have been standard methods for the identification of parameters of synchronous and induction machines, most of them do not apply to LSPMSMs. This paper presents a study and analysis of different parameter identification methods for interior mount LSPMSM. Experimental tests have been performed in the laboratory on a 1-hp interior mount LSPMSM. The measurements have been validated by investigating the performance of the machine under different operating conditions using a developed qd0 mathematical model and an experimental setup. The dynamic and steady-state performance analyses have been performed using the determined parameters. It is found that the experimental results are close to the mathematical model results, confirming the accuracy of the studied test methods. Therefore, the output of this study will help in selecting the proper test method for LSPMSM.

scholarly journals Mathematical modeling of cleaning dust-laden gas flows in the cyclone dust collector

2014 ◽  
Vol 2 (10(68)) ◽  
pp. 11
Author(s):  
Дмитро Олександрович Серебрянський ◽  
Сергій Володимирович Плашихін ◽  
Юрій Олександрович Безносик ◽  
Олександр Миколайович Набок
Keyword(s):  
Mathematical Modeling ◽  
Dust Collector ◽  
Gas Flows ◽  
Cyclone Dust Collector

Basic Examination of Small Micro-Plastics Collection using Cyclone Dust Collector

2021 ◽  
Vol 2021 (0) ◽  
pp. 1A1-B07
Author(s):  
Masayoshi OZAWA ◽  
Haruki TAKAHASHI ◽  
Toshihiko SHIMIZU ◽  
Masahiko SAKAI ◽  
Tadahiro OYAMA
Keyword(s):  
Dust Collector ◽  
Cyclone Dust Collector ◽  
Basic Examination

scholarly journals Numerical Simulation of a New Porous Medium Burner with Two Sections and Double Decks

Processes ◽  
2018 ◽  
Vol 6 (10) ◽  
pp. 185 ◽  
Author(s):  
Zhenzhen Jia ◽  
Qing Ye ◽  
Haizhen Wang ◽  
He Li ◽  
Shiliang Shi
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Porous Medium ◽  
Industrial Development ◽  
High Efficiency ◽  
Methane Combustion ◽  
Combustion Mechanism ◽  
Gas Mixture ◽  
Temperature And Pressure ◽  
Save Energy

Porous medium burners are characterized by high efficiency and good stability. In this study, a new burner was proposed based on the combustion mechanism of the methane-air mixture in the porous medium and the preheating effect. The new burner is a two-section and double-deck porous medium with gas inlets at both ends. A mathematical model for the gas mixture combustion in the porous medium was established. The combustion performance of the burner was simulated under different equivalence ratios and inlet velocities of premixed gas. The methane combustion degree, as well as the temperature and pressure distribution, was estimated. In addition, the concentrations of emissions of NOx for different equivalence ratios were investigated. The results show that the new burner can not only realize sufficient combustion but also save energy. Furthermore, the emission concentration of NOx is very low. This study provides new insights into the industrial development and application of porous medium combustion devices.

Study on the Design of Venturi Scrubber on Metal Mine

2014 ◽  
Vol 556-562 ◽  
pp. 1087-1091
Author(s):  
Shi Bin Wang ◽  
Ri Hui Chen ◽  
Xiang Yun Meng
Keyword(s):  
Diesel Exhaust ◽  
High Efficiency ◽  
Diesel Exhaust Particles ◽  
Solid Particles ◽  
Dust Collector ◽  
Venturi Scrubber ◽  
Mine Dust ◽  
Metal Mine ◽  
Pilot Programs ◽  
Exhaust Particles

Venturi scrubber is a high-efficiency wet dust collector,and has a high capture efficiency for small solid particles. Applied to metal mines, the venturi scrubber not only eliminate the mine dust in the processes of mining and driving, but also can capture the diesel exhaust particles effectively in theory. Then the air in the mine has been purified and the staff can keep away from the harm of mine dust and diesel exhaust particles. Based on the results of this research from the predecessor, the paper design a reasonable set of pilot programs for mine workers.

Regenerative Gas Turbines With Divided Expansion

2004 ◽  
Author(s):  
Brian Elmegaard ◽  
Bjo̸rn Qvale
Keyword(s):  
Mathematical Model ◽  
Gas Turbines ◽  
High Efficiency ◽  
Limited Range ◽  
Simulation Program ◽  
Operating Parameters ◽  
Gas Generator ◽  
Extensive Simulation ◽  
Power Turbine ◽  
The Mathematical Model

Recuperated gas turbines are currently drawing an increased attention due to the recent commercialization of micro gas turbines with recuperation. This system may reach a high efficiency even for the small units of less than 100kW. In order to improve the economics of the plants, ways to improve their efficiency are always of interest. Recently, two independent studies have proposed recuperated gas turbines to be configured with the turbine expansion divided, in order to obtain higher efficiency. The idea is to operate the system with a gas generator and a power turbine, and use the gas from the gas generator part for recuperation ahead of the expansion in the power turbine. The present study is more complete than the predecessors in that the ranges of the parameters have been extended and the mathematical model is more realistic using an extensive simulation program. It is confirmed that the proposed divided expansion can be advantageous under certain circumstances. But, in order for todays micro gas turbines to be competitive, the thermodynamic efficiencies will have to be rather high. This requires that all component efficiencies including the recuperator effectiveness will have to be high. The advantages of the divided expansion manifest themselves over a rather limited range of the operating parameters, that lies outside the range required to make modern micro turbines economically competitive.

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