Mechanical Engineer
Resume:
Hari S. Abarajith
Revere, MA 02151
******@*****.***
cell: 774-***-****
OBJECTIVE: To gain employment with a company where my knowledge and experience in product design, prototyping and simulating using my expertise in the areas of CFD, Heat Transfer, Fluid Dynamics, FEA Modeling, Stress Analysis and Thermodynamics, can be used effectively.
EDUCATION:
Doctor of Philosophy in Mechanical Engineering, Jun. 2006
University of California, Los Angeles, CA.
GPA 3.85/4
Master of Science in Mechanical Engineering, Sep. 2002
University of California, Los Angeles, CA.
GPA 3.9/4
Bachelor of Technology in Chemical Engineering, Jun. 2001
Indian Institute of Technology, Madras, India.
GPA 8.0/10
KEY WORDS: Heat and Mass Transfer, CFD, Strength of Materials, Fluid Dynamics, Turbomachinery, Numerical Modelling, FEA, Heat Exchangers, Fired Heaters
COMPUTER
SKILLS: • Fortran, C++, Pascal, Visual Basic, VBA and data analyzing softwares
• Experienced in Microsoft and Linux environments
• FLUENT, ANSYS, SOLIDWORKS, ASPEN+, TASC+,
HYSYS, ACOL+, HETRAN, MUSE, HTRI products
SENIOR ENGINEER Sep 2007 - Current
Aspen Technology, Burlington
1) Heat Exchanger Design: Involved in the development of design algorithms for Shell and Tube, Air cooled, Plate and Fired Heat Exchangers. Very well trained in the Heat Exchanger design softwares such as TASC+. ACOL+, HTRI
2) Plant Simualtion: I was involved in the software development and testing of plant simulation software such as ASPEN+, HYSYS. I was also involved in the integration of heat exchanger software in the plant simulation software.
3) Cost Estimation: I involved extensively in estimating the cost of manufacturing the heat exchangers and other equipments designed by the software which involved extensive data collection from manufacturers and suppliers to identify the cost of material, labor cost, transportation cost and operating cost for various different types of heat exchangers and correlating them with the design specs given out by the software to accurately interpolate the cost of the heat exchangers to be designed
SENIOR RESEARCH ENGINEER Jun 2005 – Sep 2007
Saint Gobain Ceramics and Plastics, HPM division, Northborough
Silicon Carbide:
I was the support personal for all the silicon carbide production industries around the world. I was involved in optimizing and improving the production through CFD modeling. I had great success in achieving that thereby saving lots of money for the company. I also worked on “Process Safety Hazard Identification” and “Quantitative Risk Hazard” related issues in the industry to avoid eruptions in the furnaces etc.
The tasks involved are
1) Heat transfer and pressure calculations to get general idea of the process and to set the thermodynamic and physical limits of the process
2) Simulation of the entire Silicon Carbide process using CFD software FLUENT (which involved modeling Heat and mass transfer in the furnace, Chemical reactions, pressure calculations and phase change calculations)
3) Simulation of the furnace using ANSYS FEA software to calculate the stress acting on the walls combined with the thermal calculations done in FLUENT to identify the pressure points that cause the explosions.
4) Setting up experiments and measurements to validate the model
5) Thermal measurements in the furnace using INFRARED scanner to identify the abnormal (compared to the modeling results) temperature points within the furnace (mostly happens above the high voltage electric head used to deliver power to the furnace)
6) Identifying ways to improve the production efficiency and reduce the production cost without compensating the safety.
7) Identifying enhancements and solutions from the modeling results
8) Implementing the results in the furnace design and operations
9) Overseeing the operations to make sure suggested steps are being followed.
Solid Oxide Fuel Cells: I was modeling the fluid flow, electrochemical reactions in the
stacks and designing the inlet manifolds. Also I worked on troubleshooting with all the
problems pertaining to SOFCs.
The tasks involved are
1) Simulation of Heat and mass transfer and fluid flow and electrochemical reactions inside the fuel cell stack during operation using CFD program FLUENT
2) Identifying the nickel oxide reduction pattern within the stack that changes the stress of the stack
3) Simulating the stress that occurs within the fuel cell using ANYSYS with the information from FLUENT
4) Simulating the stress in the stack that happens during sintering using ANSYS and FLUENT to identify the possible cracking patterns within the fuel cell
5) Using ACOUSTIC method to measure the size and distribution of the cracks within the fuel cell to validate the model
6) Identify ways to resolve the cracking issues within the fuel cells during both manufacturing and operations.
Other Projects: I also worked on several other small projects such as drying of Gelcasting rods, Beartex (abrasives), Diesel Particulate Filters (DPF), Turbo machinery design etc. Those projects gave me great insight into various industries.
CARBON SEQUESTRATION (part time) Jan 2008 – Apr 2008
I worked on a project with a professor from Florida International Univ. (FIU) on Carbon Sequestration from power plants. I developed a full fledged cash flow model that encompasses the chemistry behind the process, engineering and associated operating and capital costs and analyzed the feasibility of the project. I also analyzed the conditions (world market prices for the raw materials and products, carbon taxes etc) under which the project can be run profitably.
ALKRAFT TECHNOLOGIES, MADRAS, INDIA Jan 2000 – May 2001
•Internship in designing radiators for cars and trucks.
•Developed an optimization software to calculate the fan speed and the fin arrangement in the
radiators to obtain required heat transfer.
•Conducted experiments to develop a correlation for fin efficiency.
Ph.D RESEARCH
I did my Ph.D in the fields of Computational Fluid Dynamics, Heat and mass transfer. My doctoral work involved “Numerical Simulation of Pool Nucleate Boiling Heat Transfer in Micro Gravity Environments”. Here I numerically simulated formation, growth, merger of multiple vapor bubbles on the heater surface during pool nucleate boiling using Level Set method to capture the vapor-liquid interface. This involves simulation of two-phase fluid flow, heat and mass transfer and fluid dynamics.
TEACHING ASSISTANT, UCLA, CA, USA
Had been a Teaching Assistant for the following courses
•Intermediate Heat Transfer
•Numerical Methods in Engineering
PUBLICATIONS:
JOURNALS
•Abarajith, H.S., Dhir, V.K., Warrier, G.R., and Son, G., " Bubble Dynamics and Nucleate Pool Boiling Heat Transfer - Numerical Simulation and Experimental Validation", Journal of Energy, Heat and Mass Transfer, Vol. 20, pp. 34-56, 2006.
•Abarajith, H.S. , Dhir, V.K., Son, G., "Numerical Simulation of the Dynamics of Multiple
Bubble Merger during Pool Boiling under Reduced Gravity Conditions", Multiphase Science and
Technology, Vol. 18, No. 1, pp. 27-54, 2006.
•Abarajith, H.S. , Balaji, C., Raghavan, V.R., “Performance Analysis of Extended Surfaces
subjected to Fouling”, Heat and Mass Transfer, Vol. 37, pp. 499-505, 2001.
CONFERENCES AND PROCEEDINGS
•Dhir, V.K., Abarajith, H.S., and Warrier, G.R., 2005, “From Nano to Micro to Macro Scales in
Boiling,” Proceedings of NATO-ASI Meeting, NATO Science Series II: Mathematics, Physics
and Chemistry, Vol. 193, Kulwer Academic Publishers, The Netherlands.
•Abarajith, H.S. , Dhir, V.K., Son, G., "Numerical Simulation of the Dynamics of Multiple
Bubble Merger during Pool Boiling under Reduced Gravity Conditions", Proceedings of Japan-
USA Seminar on Multiphase Flows, Japan, Dec-2004.
•Abarajith, H.S., Dhir, V.K., Warrier, G.R., and Son, G., "Numerical Simulation and Experimental Validation of the Dynamics of Multiple Bubble Merger During Pool Boiling Under Microgravity Conditions." Proceedings of the Microgravity Transport Processes in Fluid, Thermal, Boilogical, and Material Sciences III, Davos, Switzerland, September 2003.
• Abarajith, H.S., Qiu, D.M., and Dhir, V.K., “Numerical Simulation and Experimental Validation of the Dynamics of a Single Bubble During Pool Boiling Under Constant and Time-Varying Reduced Gravity Conditions,” ASME Heat Transfer Conference, Las Vegas Nevada, July 20-23, 2003.
•Abarajith, H.S. and Dhir, V.K., “Effect of Contact Angle on the Dynamics of a Single Bubble During Pool Boiling Using Numerical Simulations”, Proceedings of IMECE2002 ASME International Mechanical Engineering Congress & Exposition, New Orleans 2002.
REFERENCES:
Available upon request.
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