Volume 19, Issue 6 (June 2019)                   Modares Mechanical Engineering 2019, 19(6): 1327-1335 | Back to browse issues page

‎ 20.1001.1.10275940.1398.19.6.2.6

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Numerical Investigation of Ambient Temperature and Actual Impactor Plates Effects on Its Efficiency
M. Faraji Kheyrabadi1 , S. Kheradmand * 2
1- Aerodynamic, Propulsion & Energy Conversion Department, Mechanical Engineering Faculty, Malek Ashtar University of Technology, Shahinshahr, Iran
2- Aerodynamic, Propulsion & Energy Conversion Department, Mechanical Engineering Faculty, Malek Ashtar University of Technology, Shahinshahr, Iran , kheradmand@mut-es.ac.ir
Abstract:   (8739 Views)
In the present work, an investigation and simulation of the air flow, containing solid suspended particles in the actual impactor particles under investigation are in the micron range. The results of this work can be illustrated by simulating the motion of particles in an actual impactor, investigating the effects of temperature changes on the surrounding environment, and the impedance plates on the accumulation efficiency. In the first part, by deriving the governing equations for this phenomenon and choosing the appropriate numerical method for solving these equations, the path of motion is simulated. By determining the path of the particles, it is possible to determine the number of particles deposited on collecting plate, and to the mentioned relations, the collection efficiency is obtained a laboratory experiment, which compared with laboratory values. This comparison indicates the acceptable accuracy of the chosen employed method. In the next section, by selecting particles with different densities, of the environment temperature and inlet air variations by assuming constant plate temperature, and collector plate temperature variation on the impactor efficiency have been investigated. The results show that the particle density affects the efficiency of and reduces the diameter of cut from 2.2 to 4.2 in Due to the increased viscosity of the air, the of reduces the efficiency of The results showed that temperature variation of the collection plate could also change the particle collecting efficiency.
 
Keywords: Inertial impactor Eulerian–Lagrangian approach Collection efficiency Computational fluid dynamics Thermophoresis force
Full-Text [PDF 537 kb]   (3714 Downloads)    
Article Type: Original Research | Subject: Two & Multi Phase Flow
Received: 2018/04/14 | Accepted: 2019/02/16 | Published: 2019/05/22
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