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Design and Analysis of Cyclone Separator for Spray Dryer

Author(s):

Mr. Bhagvat A. Wadekar , DY Patil School of Engineering Academy, Ambi, Pune; Prof. Mr. Rohan Katwate, DY Patil School of Engineering Academy, Ambi, Pune; Prof. Mr. Avinash S. Patil, DY Patil School of Engineering Academy, Ambi, Pune; Ms. Punam M. Chabukswar, -

Keywords:

ANSYS Fluent, Collection Efficiency, Pressure Drop, Cyclone Separator, Trajectory, Invert Cone

Abstract

This Paper is about the analysis of Cyclone separator for Spray Dryer with improved design. Industrial spray dryers are used to convert the sludge product into powder form. The size of powder product is in the range of microns and it is necessary to separate the powder from process air. Cyclone, Bag filter and Scrubber are most widely used devices in particle separation process. The cost of bag filter and scrubber is approximately three times that of cyclone. Hence by improving the efficiency of cyclone, the load on Bag filter and Scrubber can be reduced. The primary objective of the present study was to analyze the cyclone separator theoretically and CFD analysis. The second objective was to propose a new design of cyclone which will have greater efficiency than the existing design cyclone. The present cyclone was analyzed in ANSYS Fluent. The results from theoretical and CFD analysis were compared. The second objective was achieved by introducing an invert cone at bottom part. CFD analysis was carried out using the same procedure as mentioned in the case of previous analysis. The trajectory of the particle, flow path of the gas and the drop in pressure were analyzed. The theoretical collection efficiency of the existing cyclone separator was found to be 94.2 %. The efficiency of the existing cyclone from CFD analysis is found to be 95.7 %. The variation in theoretical and CFD results was found to be 7%. The pressure drop in the proposed cyclone separator from CFD analysis is found to be increase by 5 mmwc compare with the CFD results of present cyclone separator. The efficiency of proposed cyclone was found to be 98%. Thus the proposed cyclone separator is 2% more efficient than present cyclone separator.

Other Details

Paper ID: IJSRDV6I40853
Published in: Volume : 6, Issue : 4
Publication Date: 01/07/2018
Page(s): 1102-1108

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