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Articles by Subrata Kumar Majumder
Total Records ( 3 ) for Subrata Kumar Majumder
  Manoj Kumar Singh and Subrata Kumar Majumder
  A simple model of the bubble column reactor to interpret the mass transfer phenomena has been proposed in this study and its numerical simulation has been done. The important non-adjustable parameters have been explained and their dependence on various adjustable parameters has been studied to understand the bubble column operation. Mass transfer model inside BCR has been proposed in this study and its numerical simulation has been done using MATLAB software to predict the two phase mass transfer behavior in BCR. Effect of change in operating condition, column geometry and physiochemical properties of the two phases has been studied in this study. This study may helpful to further understanding of two-phase flow in bubble column and its design.
  Suresh Kumar Patel and Subrata Kumar Majumder
  An experimental investigation of strength of drag reduction in a bed packed was carried out in this study. The study of drag reduction performed at particle Reynolds numbers in the range 10-250 and was found to depend on the concentration of drag reducing agent and the fluid velocity. The drag reduction effectiveness increased with fluid velocity. For the systems investigated, there exists an optimum concentration of drag reducing agent that produces a maximum drag reduction. The present study may be useful for further understanding and modeling of porous multiphase reactor with non-Newtonian system in industrial applications.
  T. Anil Kumar , Tapas Kumar Mandal and Subrata Kumar Majumder
  This study presents, the analysis of frictional pressure drop, flow regimes of gas-liquid 2 phase flow in vertical helical column reactor. The analysis is fared based on the Lockhart-Martinelli Model. The Lockhart-Martinelli Model is modified and incorporated to predict the frictional pressure drop of air-non-Newtonian liquid flow in vertical helical coil. The effects of operating variables, such as phase flow rates on frictional pressure drop are investigated. To predict the frictional pressure drop, friction factor of gas-liquid 2 phase flow, correlations have also been developed for different flow regimes, as a function of different dimensionless groups by introducing the operating variables and physical properties.
 
 
 
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