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Thermal Analysis of Heat Sinks with Metal 3-D Printer

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2020 ASEE Virtual Annual Conference Content Access


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Publication Date

June 22, 2020

Start Date

June 22, 2020

End Date

June 26, 2021

Conference Session

Mechanical Engineering Technical Session: Feeling the Heat - Thermodynamics and Heat Transfer

Tagged Division

Mechanical Engineering

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Haejune Kim Texas A&M University

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Haejune Kim

Ph. D. in Mechanical Engineering, University of Wisconsin-Milwaukee, Milwaukee, WI
Grad: 08/2014

Master of Science in Mechanical Engineering, Texas A&M University, College Station, TX
Grad: 08/2007

Bachelor of Science in Mechanical Engineering, Korea University, Seoul, Korea
Grad: 02/2004

Nanostructured material synthesis, lithium-ion batteries, energy storage and conversion, electrochemistry

Texas A&M University Assistant Professor of Instruction
College Station, TX 09/2017 – present

Texas A&M University Research Assistant Professor
College Station, TX 09/2014 – 08/2017

Texas A&M University Technical Lab Manager
College Station, TX 01/2014 – 08/2014
•Maintained lab equipments and supplies inventory at shared service facility in the department of Mechanical Engineering and provided technical support and training

Texas A&M University Instructor
College Station, TX 06/2014 – 08/2014

A.O. Smith Corporation Technology Center Mechanical Engineering Intern
Milwaukee, WI 05/2013 – 12/2013
•Evaluated efficiency improvement of thermoelectric devices in electric water heaters
•Developed heat recovery modules based on heat pipe-heat exchanger

UW-Milwaukee Teaching Assistant and Lab Manager
Milwaukee, WI 01/2012 – 05/2013
•Maintained lab equipments and developed methods of lab experimentation for mechanical experimentation class
•Taught experimental methods for engineering problem solving and computerized programming environment based on LabVIEW

UW-Milwaukee Research Assistant
Milwaukee, WI 08/2009 – 12/2011
•Nanomaterials synthesis and analysis using Raman spectroscopy, scanning electron microscopy, and X-ray diffraction
•Developed nanomaterials for anode electrodes in lithium ion batteries and performed the electrochemical characteristics using electrochemical impedance spectroscopy and battery test equipments

Advanced Test Concepts (ATC), Inc Research Engineer
Indianapolis, IN 03/2008 – 01/2009
•Led a product development team for new product development
•Designed and conducted leak testing of various mechanical components for the seal integrity
•Performed mechanical design for new products using SolidWorks
•Designed experiments and conducted data acquisition measurement via a LabVIEW-based leak measurement system

Korean Army Helicopter dispatcher
Chungnam, Korea 04/1999 – 06/2001
•Managed flight plans of 40 helicopters supervising 8 assistants
•Analyzed and evaluated meteorological information for the safety of flight
•Maintained no accidents for 2 years; elected best helicopter unit

• MEEN 461, Heat Transfer
• MEEN 464, Heat Transfer Laboratory
• MEEN 345, Fluid Mechanics Laboratory
• MEEN 401, Introduction to Mechanical Engineering Design Studio
• MEEN 402, Intermediate Design Studio
• MEEN 404, Engineering Laboratory Studio
• MEEN 315, Principle of Thermodynamics

• July 2017 – Aug. 2017 Giorgos Pilis (Research Internship)
• May 2016 – Aug. 2016 Vasilis Tsigki (Research Internship)
• Jan. 2016 – Aug. 2016 Younggyu Nam (Masters Program)
• Jan. 2015 – Dec. 2015 Jiatang Chen (Masters Program)

CERTIFICATE Engineer in Training(EIT), 10/2012

• CAD/CAM Packages: SolidWorks, AutoCAD, Pro/Engineer WildFire
• Analysis software: FLUENT, FEMLAB, ANSYS, COSMOSWorks
• Others: LabVIEW, Fortran, MATLAB, C, Adobe Illustrator, Microsoft Word, Excel, Origin

• Chancellor’s Award at University of Wisconsin, Milwaukee
• Texas A&M University Engineering Scholarship
• Dean’s Honor List at Korea University

• Volunteer Judge at Texas Science and Engineering Fair
• Treasurer of International Christian Fellowship at Texas A&M University
• Volunteer Teacher at Vision Korean School in College station, TX
• Volunteer Teacher at Saenal Night School in Seoul

1. H. Kim, X. Huang, I. Guo, S. Cui, Z. Wen, J. Chen, Novel hybrid Si film/highly branched graphene nanosheets for anode materials in lithium-ion batteries, Journal of Physics D: Applied Physics, 52(34), 2019
2. Y. G. Nam, M. Hummod, H. Kim, A.A Polycarpou, Electrode architecture of carbon-coated silicon nanowires through magnesiothermic reduction for lithium-ion batteries. MRS Communications, 7(4), 867-872, 2017
3. H. Kim, X. Huang, Z. Wen, S. Cui, X. Guo, J. Chen, Novel hybrid Si film/carbon nanofiber for anode materials in lithium-ion batteries. Journal of Materials Chemistry A., 2015
4. S. Ci, S. Mao, Y. Hou, S. Cui, H. Kim, R. Ren, Z. Wen, and J. Chen, Rational design of mesoporous NiFe-alloy-based hybrids for oxygen conversion electrocatalysis. Journal of Materials Chemistry A, 3(15), pp.7986-7993, 2015
5. H. Kim, X. Huang, X. Guo, Z. Wen, S. Cui, J. Chen, Novel hybrid carbon nanofiber/highly branched graphene nanosheet for anode materials in lithium-ion batteries. ACS Applied Materials Interfaces. 6(21), 18590-18596, 2014
6. Wen, Z., Lu, G., Cui, S., Kim, H., Ci, S., Jiang, J., Hurley, P. T., Chen, J. Rational design of carbon network cross-linked Si–SiC hollow nanosphere as anode of lithium-ion batteries. Nanoscale, 6(1), 342-351, 2014
7. K. H. Yu, G. H. Lu, Z. H. Wen, H. Kim, Y. Y. Qian, E. Andrew, S. Mao, and J. H. Chen, "Hierarchical Vertically-Oriented Graphene as a Catalytic Counter Electrode in Dye-Sensitized Solar Cells," Journal of Materials Chemistry. 1, 188-193, 2013
8. Wen, Z., Lu, G., Mao, S., H. Kim, Cui, S., Yu, K., Huang,X., Hurley,P, Mao,O., and Chen, J., “Silicon nanotube anode for lithium-ion batteries.” Electrochemistry Communications, 29, 67-70. 2013
9. S. Mao, Z. H. Wen, H. Kim, G. H. Lu, P. Hurley, and J. H. Chen, "A General Approach to One-Pot Fabrication of Crumpled Graphene-Based Nanohybrids for Energy Applications," ACS Nano. 6(8), 7505-7513, 2012
10. Z. H. Wen, X. C. Wang, S. Mao, Z. Bo, H. Kim, S. M. Cui, G. H. Lu, X. L. Feng, and J. H. Chen, "Crumpled Nitrogen-Doped Graphene Nanosheets with Ultrahigh Pore Volume for High-performance Supercapacitor," Advanced Materials.24(41), 5610-5616, 2012
11. H. Kim, Z. H. Wen, K. H. Yu, O. Mao, and J. H. Chen, "Straightforward Fabrication of Highly Branched Graphene Nanosheet Array for Li-ion Battery Anode," Journal of Materials Chemistry. 22(31), 15514-15518, 2012
12. Bo, Z., Wen, Z., Kim, H., Lu, G., Yu, K., and Chen, J., “One-step fabrication and capacitive behavior of electrochemical double layer capacitor electrodes using vertically-oriented graphene directly grown on metal,” Carbon, 50(12), 4379-4387, 2012.
13. Z. H. Wen, S. M. Cui, H. Kim, S. Mao, K. H. Yu, G. H. Lu, H. H. Pu, O. Mao, and J. H. Chen, "Binding Sn-Based Nanoparticles on Graphene as Anode of Lithium Ions Batteries," Journal of Materials Chemistry. 22(8), 3300-3306, 2012
14. K. H. Yu, G. H. Lu, K. H. Chen, S. Mao, H. Kim, and J. H. Chen, "Controllable Photoelectron Transfer in CdSe Nanocrystal-Carbon Nanotube Hybrid Structures," Nanoscale. 4(3), 742-746, 2012.
15. K. H. Yu, G. H. Lu, S. Mao, H. Kim, and J. H. Chen, "Selective Deposition of CdSe Nanoparticles on Reduced Graphene Oxide to Understand Photoinduced Charge Transfer in Hybrid Nanostructures," ACS Applied Materials & Interfaces. 3(7), 2703-2709, 2011
16. H. Peng, H. Kim, D. Luo, M. Marquez, Z. Cheng, "Low-frequency ac electro-flow-focusing microfluidic emulsification, " Applied Physics Letters. 96, 174103, 2010
17. H. Kim, D. Luo, D. Link, D. Weitz,M. Marquez, Z. Cheng, "Controlled production of emulsion drops using an electric field in a flow focusing microfluidic device,"Applied Physics Letters. 91,133106, 2007

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A heat transfer laboratory on designing and performing thermal analysis of a heat sink was developed. Students learned to design and build their own heat sink using a metal 3 D printer. They had freedom to build a heat sink with the desired size, geometry, material, number of fins and fin arrangement. A heat source, cartridge heaters embedded aluminum block, simulating a microprocessor (with 2 cm by 2 cm and 5 mm thick) dissipating 40 Watts of heat was provided. The heat sink was designed to maintain the temperature of the simulator at 50 °C or less to avoid overheating. The main constraints to the design of heat sinks were size and material cost. Students also needed to develop an experimental plan on how to proceed the experiment. The thermal performance test was conducted in a wind tunnel with variable air speed. Students also discussed about the feasibility of using the heat sink in natural convection. For the theory part, they were required to look into the theories and mathematical equations to justify their design. The experimental data including the rate of heat transfer through the heat sink was also compared with the theoretical results. From this laboratory, students learned to choose or design heat sinks that meet the cooling requirements for a particular application.

Kim, H. (2020, June), Thermal Analysis of Heat Sinks with Metal 3-D Printer Paper presented at 2020 ASEE Virtual Annual Conference Content Access, Virtual On line . 10.18260/1-2--35385

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