Dr. S.  Dhanasekaran
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Dr. S. Dhanasekaran

Associate Professor
Mass Transfer Laboratory Department of Chemical Engineering Faculty of Engineering and Technology Annamalai University


Highest Degree
Ph.D. in Chemical Engineering from Annamalai University, Tamil Nadu, India

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Biography

DOCTORAL RESEARCH (Ph.D)

The experimental and theoretical investigations are carried out to evaluate the gas holdup, bubble diameter, interfacial area axial dispersion number and volumetric mass transfer coefficient for air-water system in a novel Hybrid Rotating and Reciprocating Perforated Plate Bubble Column under countercurrent condition.

The novelty of my research work lies in combining the effects of bubble columns, stirred tank reactors and the reciprocating plate columns. This resulted in Hybrid Rotating and Reciprocating Perforated Plate Bubble Column. The column is designed and fabricated indigenously in the Mass Transfer laboratory, Department of chemical Engineering, Annamalai University.

Experiments are carried out to study the effect of agitation level, superficial gas velocity, superficial liquid velocity, plate spacing and plate perforation diameter on gas holdup, bubble diameter, interfacial area, axial dispersion and mass transfer co-efficient respectively.

POST GRADUATE RESEARCH

An attempt is made to study the effect of motional mixture which neither react nor absorb the heat from the hot fluid. Berl saddles, Pebbles, Glass Beads are used as motionless mixtures in this study. The following streams are used in the double pipe heat exchanger. (1) Water-Water system; Hot water in tube side and Cold water in shell side. (2) Air-Water system; Hot water in tube side and Air in the shell side. Effect of this type of mixers on inside and outside individual heat transfer coefficient, Time constant (response time) based upon inside and outside heat transfer coefficients are studied.

Area of Interest:

Engineering
100%
Mass Transfer
62%
Chemical Engineering
90%
Thermodynamics
75%
Process Engineering System
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
0
Abstracts
0

Selected Publications

  1. Kamaraj, M., and D. Subramaniam, 2020. Optimization of mineral supplements for the production of alpha amylase from rice bran using Aspergillus oryzae through submerged fermentation. J. Exp. Biol. Agric. Sci., 8: 456-468.
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  2. Kamaraj, M. and D. Subramaniam, 2020.  Optimization of experimental variables for the production of u03b1-amylase by Aspergillus oryzae using rice bran
    Int. J. Adv. Res. Eng. Technol., 11: 113-126.
    CrossRef  |  Direct Link  |  
  3. Ramsenthil, R. and S. Dhanasekaran, 2019. Adsorption cadmium using blue green algae: Applicability of isotherms and modeling. Int. J. Sci. Res., 8: 1-10.
  4. Ramsenthil R. and S. Dhanasekaran, 2019. Adsorption characteristics of Cu(II) onto blue green algae–modeling and applicability of various isotherms. Global J. Res. Anal., 8: 477-487.
  5. Ramadoss, R. and D. Subramaniam, 2019. Removal of divalent nickel from aqueous solution using blue-green marine algae: Adsorption modeling and applicability of various isotherm models. Sep. Sci. Technol., 54: 943-961.
    CrossRef  |  Direct Link  |  
  6. Ramadoss, R. and D. Subramaniam, 2018. Adsorption of chromium using blue green algae-modeling and application of various isotherms. Int. J. Chem. Technol., 10: 1-22.
    CrossRef  |  Direct Link  |  
  7. Raj, J.D., S. Birla, J. Subbiah, S. Shanmugasundaram and S. Dhanasekaran, 2016. Modelling coupled rotation and microwave heating of an object in a domestic microwave oven. Int. J. Eng. Res. Applic., 6: 15-18.
  8. Raj, J.D., J. Subbiah, S. Shanmugasundaram and S. Dhanasekaran, 2016. Dielectric and thermal properties of mashed potatoes measured as a function of temperature. Adv. Life Sci., 5: 1457-1463.
    Direct Link  |  
  9. Dhanasekaran, S. and T. Karunanithi, 2013. Statistical analysis of effects of experimental variables on mass transfer coefficient in a novel hybrid bubble column using Box-Behnken design. Can. J. Chem. Eng., 91: 843-854.
    CrossRef  |  Direct Link  |  
  10. Dhanasekaran, S. and T. Karunanithi, 2012. Statistical analysis of experimental variables on gas holdup in novel bubble column using Box-Behnken design. Int. J. Chem. Reactor Eng., Vol. 10, No. 1. 10.1515/1542-6580.2908.
    CrossRef  |  Direct Link  |  
  11. Dhanasekaran, S. and T. Karunanithi, 2012. Improved gas holdup in novel bubble column. Can. J. Chem. Eng., 90: 126-136.
    CrossRef  |  Direct Link  |  
  12. Dhanasekaran, S. and T. Karunanithi, 2012. Bubble diameter and effective interfacial area in a novel hybrid rotating and reciprocating perforated plate bubble column. Int. J. Chem. Reactor Eng., Vol. 10, No. 1. 10.1515/1542-6580.2914.
    CrossRef  |  Direct Link  |  
  13. Dhanasekaran, S. and T. Karunanithi, 2010. Mass transfer studies in a novel perforated plate bubble column. Int. J. Chem. Reactor Eng., Vol. 8, No. 1. 10.2202/1542-6580.2340.
    CrossRef  |  Direct Link  |  
  14. Dhanasekaran, S. and T. Karunanithi, 2010. Axial mixing in a novel perforated plate bubble column. Int. J. Chem. Reactor Eng., Vol. 8, No. 1. 10.2202/1542-6580.2332.
    CrossRef  |  Direct Link  |  
  15. Dhanasekaran, S., V. Vijayagopal and T. Karunanithi, 2008. Mass transfer studies in hybrid rotating and reciprocating perforated plate bubble column. J. Curr. Sci., 12: 155-164.
  16. Dhanasekaran, S. and V. Vijayagopal, 2007. Hydrodynamic investigations in hybrid rotating and reciprocating perforated plate bubble column. J. Curr. Sci., 10: 907-919.