Arun Jacob

@associate professor

Associate Professor
Mes Institute of Technology and Management

Arun Jacob


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https://researchid.co/arunjacob87

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Waste Management and Disposal, Renewable Energy, Sustainability and the Environment, Numerical Analysis
4

Scopus Publications

41

Scholar Citations

3

Scholar h-index

1

Scholar i10-index

Scopus Publications

  • Heat transfer characteristics of piston-driven synthetic jet
    Arun Jacob, K.A. Shafi, K.E.Reby Roy
    International Journal of Thermofluids, 2021
  • Enhancement of heat transfer in a synthetic jet actuated by piston cylinder
    Arun Jacob, KA Shafi, KE Reby Roy
    Advances in Mechanical Engineering, 2021
    Modern electronics demand more powerful cooling systems due to an increase in heat dissipation. The traditional cooling techniques reached their limit and the synthetic jet impingement arises as a promising method for cooling of modern electronic systems. This paper presents the experimental studies on the heat transfer characteristics of a synthetic jet. The synthetic jet is driven by a piston actuator. The effects of dimensionless parameters like the distance between the orifice and heater plate (Z/D), the ratio of stroke length to diameter of orifice ( L/D), Stokes number, and Reynolds number are discussed. The effect of orifice geometry, number of orifices are also presented. The results indicate that the Z/D and Stokes number have a significant influence on the heat transfer rate. As the Stokes number increases the heat transfer increases due to an increase in axial momentum and turbulence in the flow direction. For circular orifice and at high Z/D, the L/D ratio should be higher for better heat transfer. Rectangular orifice performs better than square and circular geometries. When compared to single jet multiple jets have a higher heat transfer rate. Maximum and minimum values of normalized pressure ( Pnr) are achieved for high Stokes number and smaller areas of the orifice.
  • Experimental investigations on synthetic jet impingement heat transfer
    International Journal of Advanced Research in Engineering and Technology, 2020
  • Experimental and Numerical Investigations of Synthetic Jet Used for Electronic Cooling
    Arun Jacob, R Anandhu, R Leena, K A Shafi
    Journal of Physics Conference Series, 2019
    Cooling of electronics and micro-electronics devices is an important task in our present world. Synthetic jet is a relatively new technique for electronic chip cooling which synthesizes stagnant air to form a jet resulted from periodic oscillations of a diaphragm in a cavity. Synthetic jet cooling increases the rate of heat transfer as compared to other cooling techniques. The impingement heat transfer characteristics of a synthetic jet is studying in this work. Synthetic jet is driven by a piston-cylinder arrangement a through circular nozzle for the impingement of jet on the heated surface. Air is considered as the cooling medium. Heat flux is taken as 8000W/m2. Numerical simulations and experimental methods are conducted to study the effect of various distance between the orifice and the heated plated(Z). A circular orifice is used to study the characteristics of convective heat transfer. The results are verified by the time history of convective heat transfer characteristic and validated with experimental results. The model was simulated to investigate the dispersion of heat flow on the walls using a mathematical turbulent model of k- ω SST. The Reynolds number (Re) is in the range of 4000-8000 based on average velocity, while the normalized impinging distance varies between 2D to 10 D The results shows the significant influence of Z/D ratio and sinusoidal wave frequencies to the heat transfer rate obtained. Experimental and numerical investigations is carried out to study the variation of Nusselt number with jet velocity. It is found that the Z/D ratio at 6 gives the maximum amount of cooling for a flat plate.

RECENT SCHOLAR PUBLICATIONS

  • Heat Transfer Characteristics of Steady Jet and Synthetic Jet of Same Reynolds Numbers
    A Jacob, DKA Shafi, KE Roy
    Heat Transfer Characteristics of Steady Jet and Synthetic Jet of Same … , 2022
    2022
  • Enhancement of heat transfer in a synthetic jet actuated by piston cylinder
    A Jacob, KA Shafi, KE Reby Roy
    Advances in Mechanical Engineering 13 (9), 16878140211049139 , 2021
    2021
    Citations: 9
  • Heat transfer characteristics of piston-driven synthetic jet
    A Jacob, KA Shafi, KER Roy
    International Journal of Thermofluids 11, 100104 , 2021
    2021
    Citations: 24
  • Effects of Frequency and Jet to Surface Spacing on Synthetic Jet Impingement Heat Transfer
    RR Arun Jacob,Shafi K A
    International Journal of Engineering and Advanced Technology (IJEAT) ISSN … , 2020
    2020
    Citations: 1
  • EXPERIMENTAL INVESTIGATIONS ON SYNTHETIC JET IMPINGEMENT HEAT TRANSFER
    RR Arun Jacob,Shafi K A
    International Journal of Advanced Research in Engineering and Technology … , 2020
    2020
    Citations: 3
  • Experimental and Numerical Investigations of Synthetic Jet Used for Electronic Cooling
    A Jacob, R Anandhu, R Leena, KA Shafi
    Journal of Physics: Conference Series 1355 (1), 012008 , 2019
    2019
    Citations: 1
  • Numerical and Experimental studies on Electronic Cooling by Jet Impingement
    JPM Arun Jacob,shafi K A
    International Conference on Aerospace and Mechanical Engineering 59 (2015), 5 , 2015
    2015
  • NUMERICAL AND EXPERIMENTAL INVESTIGATION ONAIR JET IMPINGEMENT COOLING
    AJ Harikrishnan.M
    Global Journal of Engineering Science and Research Management 1 (5), 7 , 2014
    2014
  • Numerical and Experimental Investigations on Jet Impingement Cooling
    A Jacob, R Leena, TS Krishnakumar, JM Prakash
    Int. J. Mech. Mechatron. Eng 7, 516-520 , 2013
    2013
    Citations: 3

MOST CITED SCHOLAR PUBLICATIONS

  • Heat transfer characteristics of piston-driven synthetic jet
    A Jacob, KA Shafi, KER Roy
    International Journal of Thermofluids 11, 100104 , 2021
    2021
    Citations: 24
  • Enhancement of heat transfer in a synthetic jet actuated by piston cylinder
    A Jacob, KA Shafi, KE Reby Roy
    Advances in Mechanical Engineering 13 (9), 16878140211049139 , 2021
    2021
    Citations: 9
  • EXPERIMENTAL INVESTIGATIONS ON SYNTHETIC JET IMPINGEMENT HEAT TRANSFER
    RR Arun Jacob,Shafi K A
    International Journal of Advanced Research in Engineering and Technology … , 2020
    2020
    Citations: 3
  • Numerical and Experimental Investigations on Jet Impingement Cooling
    A Jacob, R Leena, TS Krishnakumar, JM Prakash
    Int. J. Mech. Mechatron. Eng 7, 516-520 , 2013
    2013
    Citations: 3
  • Effects of Frequency and Jet to Surface Spacing on Synthetic Jet Impingement Heat Transfer
    RR Arun Jacob,Shafi K A
    International Journal of Engineering and Advanced Technology (IJEAT) ISSN … , 2020
    2020
    Citations: 1
  • Experimental and Numerical Investigations of Synthetic Jet Used for Electronic Cooling
    A Jacob, R Anandhu, R Leena, KA Shafi
    Journal of Physics: Conference Series 1355 (1), 012008 , 2019
    2019
    Citations: 1
  • Heat Transfer Characteristics of Steady Jet and Synthetic Jet of Same Reynolds Numbers
    A Jacob, DKA Shafi, KE Roy
    Heat Transfer Characteristics of Steady Jet and Synthetic Jet of Same … , 2022
    2022
  • Numerical and Experimental studies on Electronic Cooling by Jet Impingement
    JPM Arun Jacob,shafi K A
    International Conference on Aerospace and Mechanical Engineering 59 (2015), 5 , 2015
    2015
  • NUMERICAL AND EXPERIMENTAL INVESTIGATION ONAIR JET IMPINGEMENT COOLING
    AJ Harikrishnan.M
    Global Journal of Engineering Science and Research Management 1 (5), 7 , 2014
    2014