Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Post: #1

Thermophoresis is a phenomenon of the movement of small particles in a gas with a temperature gradient towards the cooler region of the gas. Small particles, such as dust, when suspended in a non-isothermal gas, experience a force in the direction opposite to the temperature gradient. This force, known as the thermophoretic force plays an important role in the mass transfer mechanism of several devices involving sub-micron and micron sized particles and a large thermal gradient, and it is often cited as an important one influence the efficiency of air filters and aerosols scrubbers. Thus the net velocity got to the particle due to the thermophoretic force is called the thermophoretic velocity. The phenomenon of thermophoresis may be of important in the fouling of heat exchanger surfaces, in combustion phenomena involving small particles (e.g. fly ash in coal combustion), and in process involving the deposition of small particle on cold surfaces following chemical reaction (e.g. manufacture of optical fibre performs). The subject of the thermophoretic deposition of radioactive particle is currently one of important in view of its relevance to postulate accidents reactors. In the work explained here, thermophoretic transport of small particles is analyzed numerically for a laminar parallel plate channel flow. Two-dimensional forced convection boundary layer type equations are used with appropriate boundary conditions. The governing equations are solved using finite difference scheme. A marching solution procedure is employed where by velocity, temperature and particle concentration at any down stream location are determined knowing the flow field upstream of that location. Solution is thus obtained in a series of steps covering the complete flow field starting from the stagnation point. The effect of additional heating of the field on the particle deposition trend has been analyzed. The effect of the ratio of the wall-to gas-temperature, thermophoretic co-efficient, and Schmidt number on the particle concentration has been studied. It can be observed from the results that concentration of particles can be increased on the channel walls by reducing the wall-to gas-temperature ratio. Also additional heating of flow field gives a higher particle deposition on the walls.

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: air pollution due to vehicles in marathi, seeminar report on god particle, particle detector energetic ions, importance on newpattern of disease and pest due to rainfall, particle detector devices, free download god particle ppt presentation, employment opportunities arose due to transport india,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Analysis of Magneto-Rheological fluids in automotive usage seminar surveyer 3 1,666 23-09-2015 02:33 PM
Last Post: seminar report asees
Thumbs Up Design, Analysis, Fabrication And Testing Of A Composite Leaf Spring computer science crazy 3 3,139 05-09-2013 11:43 AM
Last Post: computer topic
  Design, Analysis, Fabrication And Testing Of A Composite Leaf Spring computer science crazy 6 9,563 06-04-2013 10:01 AM
Last Post: computer topic
Last Post: seminar details
  CFD analysis of a simple convergent flow using ANSYS FLOTRAN 10.0 Computer Science Clay 1 2,179 02-11-2012 05:44 PM
Last Post: Dinesh_Dhande
  Numerical Analysis Of Magnetorheological Fluid Damper Using FEM full report project report tiger 2 4,287 12-10-2012 12:19 PM
Last Post: seminar details
  STRATIFIED CHARGE G-DI - IN-CYLINDER CFD ANALYSIS computer girl 0 625 06-06-2012 01:40 PM
Last Post: computer girl
  Magneto Abrasive Flow Machining computer science crazy 13 12,515 14-03-2012 11:42 AM
Last Post: seminar paper
  FEA-FINITE ELEMENT ANALYSIS full report. seminar surveyer 1 2,386 06-03-2012 12:00 PM
Last Post: vijay bhaskar reddy
Music Design, Analysis, Fabrication And Testing Of A Composite Leaf Spring Computer Science Clay 2 1,720 25-01-2012 09:46 AM
Last Post: seminar addict