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Proceedings Papers

Effect of Local Frost Characteristics on Thermal Performance of Fin Tube Heat Exchanger Under Frosting Condition

Jeongkeun Kim, Jieun Hwang, Keumnam Cho
Proc. ASME. HT2013, Volume 4: Heat and Mass Transfer Under Extreme Conditions; Environmental Heat Transfer; Computational Heat Transfer; Visualization of Heat Transfer; Heat Transfer Education and Future Directions in Heat Transfer; Nuclear Energy, V004T12A005, July 14–19, 2013
Paper No: HT2013-17750
DOI: https://doi.org/10.1115/HT2013-17750
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Topics: Heat exchangers, Temperature, Heat transfer, Coolants
Proceedings Papers

Prediction of Non-Uniform Frost Distribution on a Fin Tube Heat Exchanger

Jieun Hwang, Keumnam Cho
Proc. ASME. HT2013, Volume 4: Heat and Mass Transfer Under Extreme Conditions; Environmental Heat Transfer; Computational Heat Transfer; Visualization of Heat Transfer; Heat Transfer Education and Future Directions in Heat Transfer; Nuclear Energy, V004T12A006, July 14–19, 2013
Paper No: HT2013-17753
DOI: https://doi.org/10.1115/HT2013-17753
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Topics: Heat exchangers, Heat pumps, Heat transfer, Refrigerants, Air flow, Flow (Dynamics), Heating, Pressure drop, Temperature
Proceedings Papers

Performance of Heatpipe Heat Exchanger as a Pre-Heater of the Absorption System

Yunggi Jeong, Keumnam Cho
Proc. ASME. HT2012, Volume 1: Heat Transfer in Energy Systems; Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Transport Phenomena in Materials Processing and Manufacturing; Heat and Mass Transfer in Biotechnology; Environmental Heat Transfer; Visualization of Heat Transfer; Education and Future Directions in Heat Transfer, 187-191, July 8–12, 2012
Paper No: HT2012-58224
DOI: https://doi.org/10.1115/HT2012-58224
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Topics: Absorption, Heat exchangers, Heat pipes
Proceedings Papers

Frost Thickness Variation on a Circular Tube Under Heat Pump Condition

Yoon Suk Lee, Shin Hyuk Yoon, Keumnam Cho, Gaku Hayase
Proc. ASME. IMECE2009, Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 2007-2014, November 13–19, 2009
Paper No: IMECE2009-10887
DOI: https://doi.org/10.1115/IMECE2009-10887
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Topics: Heat pumps
Proceedings Papers

Effect of the Frost on the Thermal Performance of the Evaporator for the Residential Heat Pump

Shinhyuk Yoon, Keumnam Cho
Proc. ASME. IMECE2008, Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 1381-1388, October 31–November 6, 2008
Paper No: IMECE2008-67947
DOI: https://doi.org/10.1115/IMECE2008-67947
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Topics: Heat pumps, Heat transfer, Pressure drop, Heat exchangers, Refrigerants, Water
Proceedings Papers

Mocrochannel Evaporators of the Residential Air-Conditioner

Honggi Cho, Keumnam Cho
Proc. ASME. ICNMM2007, ASME 5th International Conference on Nanochannels, Microchannels, and Minichannels, 625-630, June 18–20, 2007
Paper No: ICNMM2007-30032
DOI: https://doi.org/10.1115/ICNMM2007-30032
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Topics: Air conditioners, Cooling, Flow (Dynamics), Circuits, Heat exchangers, Manifolds, Microchannels, Pipes, Compression, Engineering prototypes
Proceedings Papers

Performance Evaluation of Prototype Microchannel Evaporators for the Residential Air-Conditioning Application

Honggi Cho, Keumnam Cho
Proc. ASME. HT2005, Heat Transfer: Volume 4, 413-418, July 17–22, 2005
Paper No: HT2005-72475
DOI: https://doi.org/10.1115/HT2005-72475
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Topics: Air conditioning, Engineering prototypes, Microchannels, Performance evaluation, Flow (Dynamics), Refrigerants, Cooling, Heat exchangers, Pressure drop, Gates (Closures)
Proceedings Papers

Optimization of the Absorption Performance of a Vertical Absorber

Jungkuk Kim, Keumnam Cho
Proc. ASME. HT2005, Heat Transfer: Volume 4, 467-472, July 17–22, 2005
Paper No: HT2005-72692
DOI: https://doi.org/10.1115/HT2005-72692
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Topics: Absorption, Optimization, Flow (Dynamics), Springs, Diffusion (Physics), Flow visualization, Kinetic energy, Refrigerants, Temperature, Vapors
Proceedings Papers

Mass Flowrate Distribution and Phase Separation of R-22 in Multi-Microchannel Tubes Under Adiabatic Condition

Honggi Cho, Keumnam Cho, Young-Saeng Kim
Proc. ASME. ICMM2003, 1st International Conference on Microchannels and Minichannels, 527-533, April 24–25, 2003
Paper No: ICMM2003-1065
DOI: https://doi.org/10.1115/ICMM2003-1065
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Topics: Microchannels, Phase separation, Flow (Dynamics), Cross-flow, Gates (Closures), Refrigerants
Proceedings Papers

Feasibility Study on the Prototype Microchannel Evaporator for the Residential Air-Conditioning Application

Honggi Cho, Keumnam Cho, Hyoungmo Koo, Seong-Ho Kil, Jeung-Hoon Kim
Proc. ASME. ICMM2004, ASME 2nd International Conference on Microchannels and Minichannels, 469-474, June 17–19, 2004
Paper No: ICMM2004-2370
DOI: https://doi.org/10.1115/ICMM2004-2370
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Topics: Air conditioning, Engineering prototypes, Microchannels, Flow (Dynamics), Cooling, Heat exchangers, Refrigerants, Condensed matter, Gates (Closures), Pipes