Book:

  Vapor Compression Heat Pumps: With Refrigerant Mixtures
         Reinhard Radermacher 
 
  Yunho Hwang University of Maryland, College Park, Maryland, USA
  Cat. #: 3489
 ISBN: 0849334896
 Publication Date: 6/23/2005
 Number of Pages: 328
 Available from CRC Press <http://www.crcpress.com>
 
 CRC Press

 

Vapor Compression Heat Pumps with Refrigerant Mixtures provides the first comprehensive, single-source treatment of working fluid mixtures and their applications in vapor compression systems. The authors explain in detail the thermodynamics of refrigerant mixtures, which is vastly more complex than that of individual refrigerants, as well as the fundamentals of various refrigeration cycles and methods for improving their efficiency. They also include important discussions on heat transfer and pressure drop correlations, experimental performance measurements and examples of using refrigerants and their mixtures, and critical operational issues such as control issues, refrigerant mixing, and mass fraction shifts.

Assembling reviews of the scattered literature on the subject and reflecting two decades of research by the authors, Vapor Compression Heat Pumps with Refrigerant Mixtures prepares you to design and implement systems that take the best advantage of fluid mixtures, confronting the challenges and grasping the opportunities that they present.

Technical Heat Transfer, Yunho Hwang, Published by Samsung Electronics Co., 09/1988.
 

  • Chapter in Book:

    • Hwang, Y. *, Automotive Air-Conditioning, 2nd Edition, Chapter: Alternative Refrigeration Cycle, Published by Denso Corp., 2002

    • Leighton, D., Y. Hwang*, R. Radermacher, Chapter: Heat Pump Water Heaters in Novel Concepts for Energy-Efficient Water Heating Systems: Theoretical Analysis and Experimental Investigation (Energy Science, Engineering and Technology), Published in March 2013 by Springer, Inc., ISBN-13: 9781624170706, Original.

    • Ling, J., Y. Hwang*, R. Radermacher, Chapter: Separate Sensible and Latent Cooling in Desiccant Cooling, Accepted for Publication in 2013 by Nova Science Publishers, Inc., Original.

    • Mortazavi, A., A., Alabdulkarem, Y. Hwang*, R. Radermacher, Chapter: Natural Gas Liquefaction Cycle Enhancements and Optimization in Fundamentals of LNG Plant Design, Accepted for Publication in 2013 by The Elsevier, Original.

     

    Journal Papers:

                    1.     Lee, H., S. Li, Y. Hwang*, R. Radermacher, Experimental Investigations on Flow Boiling Heat Transfer in Plate Heat Exchanger at Low Mass Flux Condition, Applied Thermal Engineering, V.61, 08/2013, pp. 408-415.

                    2.     Eisele, M., Y. Hwang*, R. Radermacher, Utilization of Ice Storage in Secondary Loop Automotive Air-Conditioning Systems, The SAE International Journal of Passenger Cars– Mechanical Systems, V. 6, N. 2, July 2013, pp. 512-519.

                    3.     Ling*, J., A. Vikrant, Y. Hwang, and R. Radermacher, A New Computational Tool for Automotive Cabin Air Temperature Simulation, The SAE International Journal of Passenger Cars– Mechanical Systems, V. 6, N. 2, July 2013, pp. 841-846.

                    4.     Lee, H., J. Bush, Y. Hwang*, R. Radermacher, Modeling of Micro-CHP (combined heat and power) Unit and Evaluation of System Performance in Building Application in United States, Energy, V. 58, 06/2013, pp. 364-375.

                    5.     Lee, H., Y. Hwang*, R. Radermacher, H. Geon, Potential Benefits of Saturation Cycle with Two-Phase Refrigerant Injection, Applied Thermal Engineering, V.56, 04/2013, pp. 27-37.

                    6.     Qian, S., L. Huang, V. Aute, Y. Hwang, R. Radermacher, Applicability of Entransy Dissipation Based Thermal Resistance for Design Optimization of Two-Phase Heat Exchangers, Applied Thermal Engineering, V. 55, 04/2013, pp. 140-148.

                    7.     Lee, H., Y. Hwang*, R. Radermacher, H. Geon, Experimental Investigation of Novel Heat Exchanger for Low Temperature Lift Heat Pump, Energy, V.51, 03/2013, pp. 468-474.

                    8.     Li, G., Y. Hwang*, R. Radermacher, Review Article: Review of Cold Storage Materials for Subzero Applications, Energy, V.51, 03/2013, pp. 1-17.

                    9.     Xu, X., Y. Hwang*, R. Radermacher, Performance Comparison of R410A and R32 in Vapor Injection Cycles, Int. J. of Refrigeration, V. 36, 03/2013, pp. 892-903.

                 10.     Lee, H., Y. Hwang*, R. Radermacher, H. Geon, Thermal and Hydraulic Performance of Sinusoidal Corrugated Plate Heat Exchanger for Low Temperature Lift Heat Pump, Int. J. of Refrigeration, V. 36, 03/2013, pp. 689-700.

                 11.     Gluesenkamp, K., Y. Hwang*, R. Radermacher, Applied Thermal Engineering, High efficiency micro trigeneration systems, V. 50, 02/2013, pp. 1480-1486.

                 12.     Ling, J., O. Kuwabara, Y. Hwang*, R. Radermacher, Enhancement Options For Separate Sensible And Latent Cooling Air-Conditioning Systems, Int. J. of Refrigeration, V. 36, pp. 45-57, 01/2013.

                 13.     Li, G., Y. Hwang*, R. Radermacher, Review Article: Review of Cold Storage Materials for Air Conditioning Application, Int. J. of Refrigeration, V.35, pp. 2053-2077, 12/2012.

                 14.     Alabdulkarem, A., Y. Hwang*, R. Radermacher, Energy Consumption Reduction in CO2 Capturing and Sequestration of an LNG Plant through Process Integration and Waste Heat Utilization, Int. Journal of Greenhouse Gas Control, V.10, pp. 215-228, 09/2012.

                 15.     Cui, J., Y. Wu, J. Muehlbauer, Y. Hwang, R. Radermacher, S. Fackler, M. Wutting, I. Takeuchi, Demonstration of High Efficiency Elastocaloric Cooling with Large ΔT using NiTi Wires, Applied Physics Letters, V. 101 (7), Paper No. 073904, 08/2012.

                 16.     Kwon, L., Y. Hwang*, R. Radermacher, B. Kim, Field performance measurements of a VRF system with sub-cooler in educational offices for the cooling season, Energy and Buildings, V. 49, pp. 300-305, 06/2012.

                 17.     Schoenfeld, J., Y. Hwang*, R. Radermacher, CO2 Transcritical Vapor Compression Cycle with Thermoelectric Subcooler, Int. J. of HVAC&R, V.18, pp. 297-311, 06/2012.

                 18.     Rodgers, P.*, A. Mortazavi, V. Eveloy, S. Al-Hashimi, Y. Hwang, R. Radermacher, Enhancement of LNG Plant Propane Cycle Through Waste Heat Powered Absorption Cooling, Applied Energy, V.48, pp. 41-53, 12/2012.

                 19.     Lee, H., K. Saleh, Y. Hwang*, R. Radermacher, Optimization of Novel Heat Exchanger Design for the Application of Low Temperature Lift Heat Pump, Energy, V. 42, pp. 204-212, 06/2012.

                 20.     Okuma, T. *, R. Radermacher, Y. Hwang, A Novel Application of Thermoelectric Modules to an HVAC System under Cold Climate Operation, J. of Electronic Materials, V. 41, N 6, pp. 1749-1758, 04/2012.

                 21.     Mortazavi, A., C. Somers, Y. Hwang*, R. Radermacher, S. Al-Hashimi, P. Rodgers, Performance Enhancement of Propane Precooled Mixed Refrigerant LNG Plant, Applied Energy, V.93, pp. 125-131, 03/2012.

                 22.     Al-Alili, A., Y. Hwang*, R. Radermacher, I. Kubo, A High Efficiency Solar Air Conditioner Using Concentrating Photovoltaic/Thermal Collectors, Applied Energy, V.93, pp. 138-147, 03/2012.

                 23.     Al-Alili, A., M.D. Islam*, I. Kubo, Y. Hwang, R. Radermacher, Modeling of a Solar Powered Absorption Cycle for Abu Dhabi, Applied Energy, V.93, pp. 160-167, 03/2012.

                 24.     Alabdulkarem, A., Y. Hwang*, R. Radermacher, Development of CO2 Liquefaction Cycles for CO2 Sequestration, Applied Thermal Engineering, V.34, pp. 144-156, 02/2012.

                 25.     Popli, S., P. Rodgers*, V. Eveloy, S. A. Hashimi, R. Radermacher, Y. Hwang, Boosting Energy Efficiency Using Waste-Heat-Powered Absorption Chillers, SPE Projects, Facilities & Construction, V. 6, pp. 232-238, 12/2011.

                 26.     Xu, X., Y. Hwang*, R. Radermacher, Transient and Steady-state Experimental Investigation of Flash Tank Vapor Injection Heat Pump Cycle Control Strategy, Int. J. of Refrigeration, V.34, pp. 1922-1933, 12/2011.

                 27.     Somers, C., A. Mortazavi, Y. Hwang, R. Radermacher, P. Rodgers, S. Al-Hashimi, Modeling Water/Lithium Bromide Absorption Chillers in ASPEN Plus, Applied Energy, V.88, pp. 4197-4205, 11/2011.

                 28.     Ling, J., O. Kuwabara, Y. Hwang*, R. Radermacher, Experimental Evaluation and Performance Enhancement Prediction of Desiccant Assisted Separate Sensible and Latent Cooling Air-conditioning System, Int. J. of Refrigeration, V.34, pp. 946-957, 06/2011.

                 29.     Alabdulkarem, A., A. Mortazavi, Y. Hwang*, R. Radermacher, Optimization of Propane Pre-cooled Mixed Refrigerant LNG Plant, Applied Thermal Engineering, V.31, pp.1091-1098, 05/2011.

                 30.     Han, W.*, V. Aute, Y. Hwang, and R. Radermacher, Numerical simulation and optimization of single phase turbulent flow in chevron-type plate heat exchanger with sinusoidal corrugations, Int. J. of HVAC&R, V.17, pp. 186-197, 04/2011.

                 31.     Xing, X., Y. Hwang*, R. Radermacher, Review Article: Refrigerant Injection for Heat pumping/Air Conditioning Systems: Literature Review and Challenges Discussions, Int. J. of Refrigeration, V.34, pp. 402-415, 03/2011.

                 32.     Ma, Y.*, B. Zhang, Y.H. Hwang, X.Y. Peng, and Z.W. Xing, Research and Development of a Semi-hermetic Reciprocating Compressor for Transcritical CO2 Refrigeration Cycle, Proceedings of the Institution of Mechanical Engineers, Vol.225, Part A: Journal of Power and Energy Engineering, pp.101-113, 02/2011.

                 33.     Leighton, D., Y. Hwang*, R. Radermacher, Compact Brazed Plate Heat Exchangers for CO2 Heat Pump Water Heaters, Int. Journal of Air-Conditioning and Refrigeration, V.18, N.4, pp.1-7, 12/2010.

                 34.     Al-Alili, A., Y. Hwang*, R. Radermacher, I. Kubo, Optimization of a Solar Powered Absorption Cycle under Abu Dhabi’s Weather, Solar Energy, Solar Energy, V.84, pp. 2034-2040, 12/2010.

                 35.     Zhao, Y.*, Y. Hwang, R. Radermacher, A General Geometrical Model for the Positive Displacement Compressors and Expanders, JRAC, V.10, pp. 70-75, 11/28/2010.

                 36.     Ling, J., O. Kuwabara, Y. Hwang*, R. Radermacher, Performance Enhancement of the Separate Sensible and Latent Cooling Air-Conditioning Systems by Divided Heat Exchangers, JRAC, V.10, pp. 37-43, 11/28/2010.

                 37.     Xing, X., Y. Hwang*, R. Radermacher, Control Strategy of Flash Gas Injection System and Refrigerant Charge Management, JRAC, V.10, pp. 53-60, 11/28/2010.

                 38.     Mortazavi, A., C. Somers, A. Alabdulkarem, Y. Hwang*, R. Radermacher, Enhancement of APCI Cycle Efficiency with Absorption Chillers, Energy, V.35, pp. 3877-3882, 09/2010.

                 39.     Aynur, T., Y. Hwang*, R. Radermacher, Integration of VRF and Heat Pump Desiccant Systems for the Cooling Season, Applied Thermal Engineering, V.30, pp. 917-927, 06/2010.

                 40.     Aynur, T., Y. Hwang*, R. Radermacher, Field Performance Measurements of a Heat Pump Desiccant Unit in Heating and Humidification Mode, Energy and Buildings, V.42 pp. 678-683, 05/2010.

                 41.     Fernandez, N., Y. Hwang*, R. Radermacher, Comparison of CO2 Heat Pump Water Heater Performance with Baseline Cycle and Two High COP Cycles, Int. J. of Refrigeration, V.33, pp. 635-644, 05/2010

                 42.     Ling, J., Y. Hwang*, R. Radermacher, Theoretical Study on Separate Sensible and Latent Cooling Air-Conditioning System, Int. J. of Refrigeration, V.33, pp. 510-520, 05/2010.

                 43.     Aynur, T., Y. Hwang*, R. Radermacher, Integration of VRF and Heat Pump Desiccant Systems for the Heating Season, Energy and Buildings, V.42, pp. 468-476, 04/2010.

                 44.     Wang, K., M. Eisele, Y. Hwang*, R. Radermacher, Review Article: Review of Secondary Loop Refrigeration Systems with Flammable Refrigerants, Int. J. of Refrigeration, V.33, pp. 212-234, 03/2010.

                 45.     Aynur, T., Y. Hwang*, R. Radermacher, Simulation comparison of VAV and VRF air conditioning systems in an existing building for the cooling season, Energy and Buildings, V.41, pp. 1143-1150, 11/2009.

                 46.     Wang, X., Y. Hwang*, R. Radermacher, Two-Stage Heat Pump System with Vapor-Injected Scroll Compressor Using R410A as a Refrigerant, Int. J. of Refrigeration, V.32, pp. 1442-1451, 09/2009.

                 47.     Aynur, T., Y. Hwang*, R. Radermacher, Simulation of a VAV Air Conditioning System in an Existing Building for the Cooling Mode, Energy and Buildings, V.41, pp. 922-929, 09/2009.

                 48.     Kalinowski, P., Y. Hwang*, Reinhard Radermacher, Saleh Al Hashimi, and Peter Rodgers, Application of Waste Heat Powered Absorption Refrigeration System to the LNG Recovery Process, Int. J. of Refrigeration, V.32, pp. 687-694, 06/2009.

                 49.     Nayak, S., Y. Hwang*, R. Radermacher, Performance Characterization of Gas Engine Generator Integrated with a Liquid Desiccant Dehumidification System, Applied Thermal Engineering, V.29, pp. 479-490, 02/2009.

                 50.     Wang, X., Y. Hwang*, and R. Radermacher, Investigation of Potential Benefits of Compressor Cooling, Applied Thermal Engineering, V.28, pp. 1791-1797, 10/2008.

                 51.     Aynur, T., Y. Hwang*, R. Radermacher, Field Performance Measurements of a Heat Pump Desiccant Unit in Dehumidification Mode, Energy and Buildings, V.40, pp. 2141-2147, 09/2008.

                 52.     Aynur, T., Y. Hwang*, and R. Radermacher, Simulation Evaluation of the Ventilation Effect on the Performance of a VRV System in Cooling Mode – Part II: Simulation Evaluation, Int. Journal of HVAC&R Research, V.14, N.5, pp. 783-795, 09/2008.

                 53.     Hwang, Y.*, A. Gado, and R. Radermacher, Cycling in Climate Control Systems with Orifice Tube and Thermostatic Expansion Valve, Journal of Passenger Cars-Mechanical Systems, V.116, pp. 1235-1239, 07/2008.

                 54.     Aynur, T., Y. Hwang*, and R. Radermacher, Experimental Evaluation of the Ventilation Effect on the Performance of a VRV System in Cooling Mode – Part I: Experimental Evaluation, Int. Journal of HVAC&R Research, V.14, N.4 , pp. 615-630, 07/2008.

                 55.     Hwang, Y.*, R. Radermacher, A. Al-Alili, I. Kubo, Review Article: Review of Solar Cooling Technologies, Int. Journal of  HVAC&R Research, V.14, N.3, pp. 507-528, 05/2008.

                 56.     Hwang, Y.*, , R. Radermacher, T. Hirata, Oil Mass Fraction Measurement of CO2/PAG Mixture, Int. Journal of Refrigeration, V.31, N.2, pp. 256-261, 03/2008.

                 57.     Gado, A., Y. Hwang*, R. Radermacher,  Dynamic Behavior of Mobile Air Conditioning Systems, Int. Journal of HVAC&R Research, V.14, N.2, pp. 307-321,  03/2008.

                 58.     Gado, A., Y. Hwang*, R. Radermacher, A Dynamic Test Facility for Mobile Air Conditioning Systems, Int. Journal of Air-Conditioning and Refrigeration, V.15, N.4, pp. 147-155, 12/30/2007.

                 59.     Yun, R., Y. Hwang*, R. Radermacher, Convective Gas Cooling Heat Transfer and Pressure Drop Characteristics of Supercritical CO2/Oil Mixture in a Minichannel Tube, Int. Journal of Heat and Mass Transfer, V.50, pp. 4796-4804, 11/2007.

                 60.     Hwang, Y.*, D. Jin, R. Radermacher, Comparison of R-290 and Two HFC Blends for Walk-In Refrigeration Systems, Int. Journal of Refrigeration, V.30, pp. 633-641, 06/2007.

                 61.     Hwang, Y.*, D. Jin, R. Radermacher, Refrigerant Distribution in Minichannel Evaporator Manifolds, Int. Journal of HVAC&R, V.13,  N.4, pp. 543-555, 07/2007.

                 62.     Hwang, Y.*, J. Lee, R. Radermacher, Oil Distribution in a Transcritical CO2 Air Conditioning System, Applied Thermal Engineering, V.27, pp. 2618-2625, 10/2007.

                 63.     Hwang, Y.*, V. Singh, R. Radermacher, Heat Exchanger Design for CO2 Cycle with a Linear Compressor, Int. Journal of HVAC&R, V.13, N.3., pp. 471-483, 05/2007.

                 64.     Cremaschi, L., Y. Hwang*, R. Radermacher, Experimental Investigation of Oil Retention in Air Conditioning Systems, Int. Journal of Refrigeration, V.28, N.7., pp. 1018-1028, 11/2005.

                 65.     Hwang, Y.*, D. Jin, and R. Radermacher, Performance Measurements of CO2 Heat Exchanger, ASHRAE Transactions, V.111, Part 2, Paper No. 4814, 06/2005.

                 66.     Hwang, Y.*, Potential Energy Benefits of Integrated Refrigeration System with Microturbine and Absorption Chiller, Int. Journal of Refrigeration, V.27, N.8, pp.816-829, 12/2004.

                 67.     Hwang, Y.*, W. Kopko, R. Radermacher, An Experimental Evaluation of a Residential Sized Evaporatively Cooled Condenser, Int. Journal of Refrigeration, V.24, N.1, pp. 238-249, 05/2001.

                 68.     Hwang, Y.*, S. I. Haider, B. Markey, W. Kopko, R. Radermacher, Evaporatively-Cooled Condenser with Rotating Disks, Journal of Enhanced Heat Transfer, V.7 N.4, pp. 273-287, 12/2000.

                 69.     Hwang Y.*, R. Radermacher, Experimental Investigation of the Carbon Dioxide Refrigeration Cycle, ASHRAE Transactions, V.105, Part 1, pp. 1219-1227, CH-99-22-2, 01/1999.

                 70.     Hwang Y.*, R. Radermacher, Theoretical Evaluation of Carbon Dioxide Refrigeration Cycle, Int. Journal of HVAC&R, V.4, N.3, pp. 245-263, 07/1998.

                 71.     Hwang, Y.*, J. Judge, and R. Radermacher, Experience with Refrigerant Mixtures, ASHRAE Transactions, V. 103, Part 1, pp. 765-776, 01/1997.

                 72.     Cheung, K., Y. Hwang, J. Judge, A. Singh, R. Radermacher*, Performance Assessment of Multistage Absorption Cycles, Int. Journal of Refrigeration, V.19, N.7, pp. 473-481, 07/1996.

     

    Key Note Papers:

                                   1.     Ling, J., O. Kuwabara, Y. Hwang*, R. Radermacher, Enhancement Options for Separate Sensible and Latent Cooling Air-Conditioning Systems, 23rd International Congress of Refrigeration, Prague, Czech Republic, 08/25/2011.

                                   2.     Gluesenkamp, K.*, R. Radermacher, Y. Hwang, Trends in Absorption Machines, International Sorption Conference (ISHPC11): Sources/Sinks Alternative to the Outside Air for Heat Pump and Air-Conditioning Techniques, Padua, Italy, 04/08/2011.

                                   3.     Gluesenkamp, K.*, R. Radermacher, Y. Hwang, High Efficiency Trigeneration Systems for Buildings, 2nd European Conference on Polygeneration, Spain, 2011.

                                   4.     Hwang, Y.*, Trends in Refrigeration Technologies, International Symposium on Refrigeration Technology, Zhuhai, China, 11/02/2010.

                                   5.     Hwang, Y.*, Advanced Technology for Air-Conditioning and Refrigeration, The 6th Int. Conference on Compressor and Refrigeration, Xi’an, China, 09/01/2008.

                                   6.     Hwang, Y.*, Refrigerant Distribution in Microchannel Evaporators, The 22nd Int. Congress of Refrigeration, Beijing, China, 8/21/2007.

                                   7.     Hwang, Y.*, Two-Stage Cycle with Vapor Injection Compressor, The 22nd Int. Congress of Refrigeration, Beijing, China, 8/21/2007.

                                   8.     Hwang, Y.*, Oil Management in Hermetic Vapor Compression Cycle, The 5th Int. Conference on Compressor and Refrigeration, Dalian, China, 07/21/2005.

                                   9.     Hwang, Y.*, R. Radermacher, Integration of Air-conditioning and Refrigeration with Distributed System, The 21st Int. Congress of Refrigeration, Washington D.C., 08/22/2003.

                                10.     Radermacher, R. and Y. Hwang*, Alternative Refrigerant Heat Pump and Refrigeration Systems, The 12th Int. Heat Transfer Conference, Grenoble, France, 08/2002.

                                11.     Hwang, Y.*, R. Radermacher, Emerging Refrigerants, IIR Conference, “Emerging Trends,” New Delhi, India, 03/20/1998.

    Conference Papers:

                                1.        Al-Alili, A., Y. Hwang*, R. Radermacher, Optimization Study of A Hybrid Solar Air conditioner, ASME 2013 7th International Conference on Energy Sustainability, Minneapolis, ESFuelCell2013-18130, July 14-19, 2013.

                                2.        Qian, S., K, Gluesenkamp, Y. Hwang*, R. Radermacher, Experimental Study on Performance of A Residential Combined Cooling, Heating, and Power System under Varying Building Load, ASME 2013 7th International Conference on Energy Sustainability, Minneapolis, ESFuelCell2013-18043, July 14-19, 2013.

                                3.        Nasuta, D.*, J. Bush, Y. Hwang, R. Domitrovic, R. Radermacher, A. Amarnath, Modeling Advanced Heat Pump Water Heater Systems, ASHRAE 2013 Annual Meeting, Paper No 10910, 06/2013.

                                4.        Ling, J., S. Qian, L. Huang, Y. Hwang*, R. Radermacher, The Winner Design of the Max Tech and Beyond Competition: A High-efficient Residential Air-conditioning System, Paper No. 10867, 06/2013.

                                5.        Lee, H., T. Cao, Y. Hwang*, R. Radermacher, Experimental Investigation of A Desiccant Wheel Cycle, Fourth Conference on Thermophysical Properties and Transfer Processes of Refrigerants, Delft, The Netherlands, Paper No. TP-010, June 17-19, 2013.

                                6.        Ling, J., A. Vikrant, Y. Hwang, and R. Radermacher, A New Computational Tool for Automotive Cabin Air Temperature Simulation, SAE World Congress, Detroit, MI, Paper No. 2013-01-0868 April 16-18, 2013.

                                7.        Eisele, M., Y. Hwang*, R. Radermacher, Utilization of Ice Storage in Secondary Loop Automotive Air-Conditioning Systems, SAE World Congress, Detroit, MI, 2013-01-0235.

                                8.        Montgomery, G., Y. Hwang*, Review of Life Cycle Climate Performance Analysis, The 2nd IIR International Conference on Sustainability and Cold Chain, April 2-4, 2013, Paris, France.

                                9.        Popil, S., Y. Hwang*, R. Radermacher, Experimental Investigation of a Flat Tube-Louver Fin Heat Exchanger Performance Working As A Cooler in Dry and Wet Conditions, The ASME 2012 International Mechanical Engineering Congress and Exposition, Houston, Texas, USA, IMECE2012-85884, November 9-15, 2012.

                             10.        Alabdulkarem, A., Y. Hwang*, R. Radermacher, Efficiency Improvement of Natural Gas Combined Cycle Power Plant with CO2 Capturing and Sequestration, The ASME 2012 International Mechanical Engineering Congress and Exposition, Houston, Texas, USA, IMECE2012-87436, November 9-15, 2012.

                             11.        Al-Alili, A., Y. Hwang*, R. Radermacher, Experimental Investigation of a Desiccant Wheel Cycle, The ASME 2012 International Mechanical Engineering Congress and Exposition,  Houston, Texas, USA, IMECE2012-86309, November 9-15, 2012.

                             12.        Hwang Y.*, H. Kim, K. Jang, S. Byon, Modeling of Suctionline Heat Exchanger for R134a Mobile Air-conditioning System, 6th Asian Conference for Refrigeration and Air Conditioning at Xi’an, China, Paper No. 2989, 08/28/2012.

                             13.        Xu, X., Y. Hwang*, R. Radermacher, Performance Comparison of R410A and R32 In A Vapor Injection Heat Pump System in A Flash Tank, 6th Asian Conference for Refrigeration and Air Conditioning at Xi’an, China, Paper No. 2989, 08/28/2012.

                             14.        Ling, J., Y. Hwang*, R. Radermacher, A Simulation Tool for Radiative Heat Exchangers, 14th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2324, 07/16/2012.

                             15.        Ling, J., Y. Hwang*, R. Radermacher,  Design of Divided Condensers for Desiccant Wheel-Assisted Separate Sensible and Latent Cooling AC Systems, 14th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2325, 07/16/2012.

                             16.        Xu, X., Y. Hwang*, R. Radermacher, H. Pham, Performance Measurement of R32 Vapor Injection Heat Pump System, 14th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2328, 07/16/2012.

                             17.        Qian, S., L. Huang, V. Vikrant, Y. Hwang*, R. Radermacher, Effectiveness of Entransy Dissipation Metric and Entropy Generation Units in The Design of Fin-Tube Heat Exchangers, 14th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2329, 07/16/2012.

                             18.        Kwon, L., Y. Hwang*, R. Radermacher, B. Kim, Field Performance Measurements of VRF System with Subcooling Heat Exchanger, 14th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2330, 07/16/2012.

                             19.        Popli, S., Y. Hwang*, R. Radermacher, Enhancement of Round Tube and Flat Tube-Louver Fin Heat Exchanger Performance Using Deluge Water Cooling, 14th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2331, 07/16/2012.

                             20.        Ling, J., Y. Hwang*, R. Radermacher, Performance Enhancement of R744 Systems by Separate Sensible and Latent Cooling Technology, The 10th Gustav Lorentzen Conference on Natural Refrigerant at Delft, The Netherlands, Paper No. GL-150, 06/25/2012.

                             21.        Schoenfeld, J., Y. Hwang*, R. Radermacher, Performance Enhancement of CO2 Refrigeration Systems by Thermoelectric Subcooler, The 10th Gustav Lorentzen Conference on Natural Refrigerant at Delft, The Netherlands, Paper No. GL-151, 06/25/2012.

                             22.        Alabdulkarem, A., Y. Hwang*, R. Radermacher, New Energy Efficient CO2 Pressurization Strategies for Enhanced Oil Recovery Applications, Proceedings of Carbon Management Technology Conference, Paper No. CMTC-151639, 02/2012.

                             23.        Leighton, D., Y. Hwang*, and R. Radermacher, Modeling of Household Refrigerator Performance with Low Global Warming Potential Alternative Refrigerants, ASHRAE Transactions, V. 118, Part 1, CH-12-C084, 01/2012.

                             24.        Ling, L., Y. Hwang*, V. Aute, Thermal Comfort Simulation for Low ΔT Heat Exchangers, Reinhard Radermacher, DKV, Paper No. AA-IV-08, 11/16/2011.

                             25.        Xu, X., Y. Hwang*, R. Radermacher, CFD Modeling of Two-Phase Fluid Separation in A Flash Tank Used In a Vapor Injection Heat Pump Cycle Control Strategy, IEA Heat Pump Conference, No. 00225, 08/2011.

                             26.        Ling, J., O. Kuwabara, Y. Hwang*, R. Radermacher, Enhancement Options for Separate Sensible and Latent Cooling Air-Conditioning Systems, International Congress of Refrigeration, Paper No. 708, Czech Republic, 08/21/2011.

                             27.        Okuma, T.*, R. Radermacher, Y. Hwang, A Novel Application of Thermoelectric Modules to an HVAC System under Cold Climate Operation, The 30th International Conference on Thermoelectrics, Traverse City, Michigan, USA, 07/2011.

                             28.        Eisele, M., Y. Hwang*, R. Radermacher, Small-Scale Dynamic Test Facility for Automotive Thermal Management Systems, Vehicle Thermal Management Systems (VTMS) 10 Conference, pp. 523-535, Birmingham, U.K., 05/19/2011.

                             29.        Gluesenkamp, K.*, C. Horvath, R. Radermacher, Y. Hwang, Air-cooled, Single Effect, Waste Heat-driven Water/LiBr Absorption System for High Ambient Temperatures, International Sorption Conference (ISHPC11), pp. 135-144, Padua, Italy, 04/08/2011.

                             30.        Gluesenkamp, K., R. Radermacher, Y. Hwang*, Crystallization Inhibitors for Water/LiBr Absorption Chillers, International Sorption Conference (ISHPC11), pp. 145-154, Padua, Italy, 04/08/2011.

                             31.        Gluesenkamp, K.*, R. Radermacher, Y. Hwang, Preliminary Design of a Low Regeneration Temperature Residential Adsorption Chiller, International Sorption Conference (ISHPC11), pp. 615-624, Padua, Italy, 04/08/2011.

                             32.        Popli, S.*, P. Rogers, S. A. Hashimi, V. Eveloy, R. Radermacher, Y. Hwang, Opportunities for Energy Efficiency Enhancements in the Oil and Gas Industry using Waste Heat Powered Absorption Chillers, The Abu Dhabi Int. Petroleum Exhibition and Conference, Abu Dhabi, UAE, 11/2010.

                             33.        Ma, Y.*, Y. Hwang, and R. Radermacher, A General Geometrical Model for the Positive Displacement Compressors and Expanders, Int. Symposium on Refrigeration Technology, Zhuhai, China, Paper No. GRE056, pp. 361-369, 08/07/2010.

                             34.        Ling, J.*, O. Kuwabara, Y. Hwang, R. Radermacher, Enhancement of the Separate Sensible and Latent Cooling Air-Conditioning Systems by Divided Heat Exchangers, Int. Symposium on Refrigeration Technology, Zhuhai, China, Paper No. GRE057, pp. 7-16, 08/07/2010.

                             35.        Xu, X., Y. Hwang*, R. Radermacher, H. Pham, Control Strategy and Refrigerant Charge Management of Vapor Injection Cycle with a Flash Tank, Int. Symposium on Refrigeration Technology, Zhuhai, China, Paper No. GRE058, pp. 17-25, 08/07/2010.

                             36.        Kuwabara, O.*, J. Ling, Y. Hwang, and R. Radermacher, Experimental Evaluation of Separate Sensible and Latent Cooling Air-Conditioning System Integrated with Desiccant Wheel, 13th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2250, 07/15/2010.

                             37.        Xu, X., Y. Hwang*, R. Radermacher, H. Pham, Control Strategy of Vapor Injection Cycle, 13th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2249, 07/15/2010.

                             38.        Ling, J., O. Kuwabara, Y. Hwang*, R. Radermacher, Enhancement of the Separate Sensible and Latent Cooling Air-Conditioning Systems, 13th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2251, 07/15/2010.

                             39.        Aynur, T., Y. Hwang*, R. Radermacher, Experimental Evaluation of The Effect of The Control Mode on The Performance of a VRF System in Cooling Mode, Clima 2010- 10th REHVA World Congress, Istanbul, Turkey, Paper No. 712, 05/12/2010.

                             40.        Al-Alili, A.*, Y. Hwang , R. Radermacher, I. Kubo, P. Rodgers, High Efficiency Solar Cooling Technique, Energy 2030, Abu Dhabi, U.A.E., November 4-5, 2008.

                             41.        Fernandez, N., Y. Hwang*, and R. Radermacher, Performance of CO2 Heat Pump Water Heaters, The 8th IIR Gustav Lorentzen Conference on Natural Working Fluids, Copenhagen, Paper No. HPU-05-T2-05, 09/10/2008.

                             42.        Kalinowski, P., Y. Hwang*, and R. Radermacher, Waste Heat Powered Absorption Refrigeration System In The LNG Recovery Process, Int. Sorption Heat Pump Conference, Seoul, Korea, Paper No. 6-IV-078, 09/06/2008.

                             43.        Aynur, T., Y. Hwang*, R. Radermacher, A Heat Pump Desiccant Unit for Dehumidification and Humidification, 12th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2118, 07/17/2008.

                             44.        Aynur, T., Y. Hwang*, R. Radermacher, The Effect of the Ventilation and the Control Mode on the Performance of a VRV System in Cooling and Heating Modes, 12th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2264, 07/17/2008.

                             45.        Ling, J., Y. Hwang*, R. Radermacher, Theoretical Study on Separate Sensible and Latent Cooling Air-Conditioning System, 12th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2120, 07/17/2008.

                             46.        Schoenfeld, J., Y. Hwang*, R. Radermacher, Integration of a Thermoelectric Subcooler into a Carbon Dioxide Transcritical Vapor Compression Cycle Refrigeration System, 12th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2229, 07/17/2008.

                             47.        Wang, X., Y. Hwang*, R. Radermacher, Performance Investigation of Refrigerant Vapor-Injection Technique for Residential Heat Pump Systems, 12th Int. Refrigeration and Air Conditioning Conference at Purdue, Paper No. 2119, 07/17/2008.

                             48.        Hwang, Y.*, A. Gado, and R. Radermacher, Cycling in Climate Control Systems with Orifice Tube and Thermostatic Expansion Valve, SAE World Congress, Detroit, MI, Paper No. 2007-01-1195, 04/16/2007.

                             49.        Aynur, T., Y. Hwang*, R. Radermacher, Field Performance Measurements of a VRV AC/HP System, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/20/2006.

                             50.        Comparison of Performance of a Residential Air-Conditioning System Using Yun, R., Y. Hwang*, R. Radermacher, and R. Zecirovic, Microchannel and Fin-and-Tube Heat Exchanger, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/26/2006.

                             51.        Hwang, Y.*, R. Radermacher, S. Hwang, H. Lee, S. Ha, Performance Potential of CO2 Cycle with a Linear Compressor, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/26/2006.

                             52.        Yun, R., Y. Hwang*,R. Radermacher, Gas Cooling Heat Transfer and Pressure Drop Characteristics of CO2/Oil Mixture in a Microchannel, Proceedings of 7th IIR Gustav Lorentzen Conference on Natural Working Fluids, pp. 487-490, Trondheim, Norway, 05/31/2006.

                             53.        Hwang, Y.*, R. Radermacher, S. Hwang, H. Lee, and S. Ha, Performance Potential of CO2 Cycle for a Medium Temperature Refrigeration System, Proceedings of The 3rd Asian Conference on Refrigeration and Air-conditioning, Gyeongju, Korea, 05/23/2006.

                             54.        Hwang, Y.*, D. Jin and R. Radermacher, Comparison of Hydrocarbon R-290 and Two HFC Blends R-404A and R-410A for Low Temperature Refrigeration Applications, IIR Conference for Commercial Refrigeration, Italy, 08/31/2005.

                             55.        Hwang, Y.*, X. Wang and R. Radermacher, Performance of a Two-Stage Carbon Dioxide Compressor with an Intercooler, The 5th Int. Conference on Compressor and Refrigeration, pp. 152-163, Dalian, China, 07/21/2005.

                             56.        Hwang Y.*, Reinhard Radermacher, Interfacial Friction Factor between Gaseous CO2 and Oil, 6th World Conference on ExHTF, pp. 96-97, Miyagi, Japan, 04/21/2005.

                             57.        Gado, A., Y. Hwang*, R. Radermacher, Dynamic Performance Measurement Method Integrated with Cabin Model, Paper No. 2005-01-1510, SAE World Congress, 04/11/2005.

                             58.        Hotta, T.*, Y. Ozaki, T. Hirata, and Y. Hwang, Oil Circulation Rate in CO2 Cycle, The Int. Symposium on New Refrigerants and Environmental Technology, JRAIA, Japan, 11/2004.

                             59.        Hwang Y.*, R. Radermacher, Life Cycle Climate Performance (LCCP) Analysis of Propane and Two HFC Blends in Direct Expansion Medium Temperature Refrigeration Systems, The 6th Gustav Lorentzen Natural Working Fluids Conference at Glasgow, UK, 09/01/2004.

                             60.        Hwang, Y.*, J. Muehlbauer, R. Radermacher, Performance Evaluation of A Two-Stage Carbon Dioxide Compressor, The 6th Gustav Lorentzen Natural Working Fluids Conference at Glasgow, UK, 09/01/2004.

                             61.        Dreiman, N.*, R. Bunch, Y. Hwang, R. Radermacher, Two-stage Rolling Piston Carbon Dioxide Compressor, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/15/2004.

                             62.        Cremaschi, L., Y. Hwang*, R. Radermacher, Investigation of Oil Retention in Residential Heat Pump, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/15/2004.

                             63.        Gado, A., Y. Hwang*, R. Radermacher, Measurements of the Dynamic Performance and Behavior of Air-Conditioning Systems Using a Dynamic Test Facility, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/15/2004.

                             64.        Celik, A., Y. Hwang*, R. Radermacher, Performance of CO2 Cycles with a Hermetic, Two-Stage CO2 Compressor, Int. Refrigeration Conference at Purdue, West Lafayette, IN, 07/15/2004.

                             65.        Hwang, Y.*, R. Radermacher, S. Spinazzzola, and Z. Menachery, Performance Measurements of A Forced Convection Air-Cooled Rack, ITHERM, 06/04/2004.

                             66.        Hwang, Y.*, L. Cremaschi, R. Radermacher, T. Hirata, Y. Ozaki, and T. Hotta, Oil Circulation Behavior in Low Temperature CO2 Climate Control Systems, Paper No. 2004-01-0915, pp. 33-38, SAE World Congress, 03/08/2004.

                             67.        Hwang, Y.*, A. Gado, and R. Radermacher, Performance of Propane in a Unitary Heat Pump, Proceedings of the 21st Int. Congress of Refrigeration, Washington D.C., 08/22/2003.

                             68.        Hwang, Y.*, L. Cremaschi, R. Radermacher, T. Hirata, Y. Ozaki, and T. Hotta, Oil Circulation Ratio in CO2 Climate Control Systems, Paper No. 2003-01-0730, SAE World Congress, 03/03/2003.

                             69.        Hwang, Y.*, A. Gado, R. Radermacher, Performance Comparison of Hydrocarbon R-290 with R-22 in Residential Heat Pump System, Proceedings of the 5th IIR-Gustav Lorentzen Conference, pp. 603-610, Guangzhou, China, 09/20/2002.

                             70.        Huff, H., Y. Hwang*, and R. Radermacher, Options for A Two-stage Transcritical Carbon Dioxide Cycle, Proceedings of the 5th IIR-Gustav Lorentzen Conference, pp. 143-149, Guangzhou, China, 09/20/2002.

                             71.        Hwang, Y.*, L. Cremaschi, R. Radermacher, T. Hirata, Y. Ozaki, and T. Hotta, Oil Circulation Ratio Measurement in CO2 Cycle, Proceedings of the 2002 Int. Conference “New Technologies in Commercial Refrigeration,” pp. 22-28, Urbana-Champaign, IL, 07/23/2002.

                             72.        Lee, J., Y. Hwang*, and R. Radermacher, An Experimental Investigation on Oil Retention Characteristics in CO2 Air-Conditioning Systems, Int. Compressor Engineering Conference and Refrigeration and Air Conditioning Conference, Purdue, IN, 07/19/2002.

                             73.        Hwang, Y.*, R. Radermacher, Opportunities with Alternative Refrigerants, ITHERM 2002, pp. 777-784, San Diego, CA, 06/01/2002.

                             74.        Lee, J., Y. Hwang*, R. Radermacher, and S. Mehendale, Experimental Investigations on Oil Accumulation Characteristics in a Vertical Suction Line, ASME Int. Mechanical Engineering Congress, New York, NY, 11/16/2001.

                             75.        Hwang, Y.*, H. Huff, M. Preissner, R. Radermacher, CO2 Transcritical Cycles for High Temperature Applications, ASME Int. Mechanical Engineering Congress, New York, NY, IMECE2001/AES-23630, 11/16/2001.

                             76.        Hwang, Y.*, J. Lee, and R. Radermacher, An Experimental Investigation on Flow Characteristics of Refrigerant/Oil Mixture in Vertical Upward Flow, Proceedings of 4th IIR-Gustav Lorentzen Conference, Purdue, IN, 07/28/2000.

                             77.        Cutler, B., Y. Hwang*, R. Radermacher, Development of Carbon Dioxide Environmental Control Unit, Proceedings of 4th IIR-Gustav Lorentzen Conference, Purdue, IN, 07/28/2000.

                             78.        Preissner, M.*, B. Cutler, S. Singanamalla, Y. Hwang, and R. Radermacher, Comparison of Automotive Air-Conditioning System with CO2 and R134a, Proceedings of 4th IIR-Gustav Lorentzen Conference, Purdue, IN, 07/28/2000.

                             79.        Hwang, Y.*, R. Radermacher, Development of Hermetic Carbon Dioxide Compressor, Proceedings of the Int. Refrigeration Conference at Purdue, pp. 171-175, West Lafayette, IN, 07/17/1998.

                             80.        Hwang, Y.*, R. Radermacher, Experimental Evaluation of CO2 Water Heater, Proceedings of the IIR‑Gustav Lorentzen Conference, pp. 321-328, Oslo, Norway, 06/05/1998.

                             81.        Hwang, Y.*, B. Kim, R. Radermacher, Boiling Heat Transfer Correlation for Carbon Dioxide, Proceedings of IIR-Conference, “Heat Transfer Issues in Natural Refrigerants,” pp. 81-94, College Park, MD, 11/07/1997.

                             82.        Hwang, Y.*, R. Radermacher, Evaluation of Carbon Dioxide Heat Exchanger, Proceedings of IIR-Conference, “Heat Transfer Issues in Natural Refrigerants,” pp. 105-114, College Park, MD, 11/07/1997.

                             83.        Pande, M.*, Y. Hwang, J. Judge, and R. Radermacher, An Experimental Evaluation of Flammable/Non-Flammable High Pressure HFC Replacements for R-22, Proceedings of the Int. Refrigeration Conference at Purdue, pp. 21-27, Purdue, IN, 07/17/1996.

                             84.        Hwang, Y.*, J. Judge, and R. Radermacher, Evaluation of R-22 Alternatives for Heat Pumps, Proceedings of the ASME Int. Mechanical Engineering Congress, AES-Vol. 34, pp. 11-17, San Francisco, CA, 11/17/1995.

                             85.        Judge, J.*, Y. Hwang, R. Radermacher, Experimental Results of Two Drop-In Replacement Refrigerants for HCFC-22, Proceedings of 19th Int. Congress of Refrigeration, Vol. IVb, pp. 1168-1175, The Hague, The Netherlands, 08/25/1995.

                             86.        Hwang, Y.*, J. Judge, R. Radermacher, An Experimental Evaluation of Medium and High Pressure HFC Replacements for R-22, Proceedings of the Int. CFC and Halon Alternatives Conference, pp. 41-48, Washington D.C., 10/23/1995.

    Patents:

                    1.     Hwang, Y.*, H. Le, J. Muehlbauer, L. Shapiro, B. Cole, Heat Exchanger Plate, U.S. Design Patent, US D658,748S, 2012

                    2.     Hwang, Y.*, H. Le, J. Muehlbauer, L. Shapiro, B. Cole, Heat Exchanger Plate, U.S. Design Patent, US D657,584S, 2012

                    3.     Hwang, Y.*, H. Le, J. Muehlbauer, L. Shapiro, B. Cole, Heat Exchanger Plate, U.S. Design Patent, US D657,556S, 2012

                    4.     Hwang, Y.*, H. Le, J. Muehlbauer, L. Shapiro, B. Cole, Heat Exchanger Plate, U.S. Design Patent, US D657,555S, 2012

                    5.     Sim, J.*, Y. Ko, J., Shin, B. Choi, J. Hwang, Y. Jeong, S. Ha, Y. Hwang, Refrigerator and Method for Controlling Operation of the Same, U.S. Patent, US7726141B2, 2010.

                    6.     Radermacher, R.*, T. Ishihara, H. Huffs, Y. Hwang, M. Otake, O., Kuwabara, I., Kamimura, Multi-stage refrigeration system with pressure control, European Patent, EP1703229A2, 2006.

                    7.     Radermacher, R.*, T. Ishihara, H. Huffs, Y. Hwang, M. Otake, O., Kuwabara, I., Kamimura, Multi-stage refrigeration system including sub-cycle control characteristics, U.S. Patent, US7631510B2, 2006.

    Professional Services:

    Dates

    Committee memberships

    Professional organization

    2011 to present

    Chair, LCCP Working Party

    Int. Institute of Refrigeration

    2011 to present

    Vice President, Commission B1

    Int. Institute of Refrigeration

    1999 to 2011

    Secretary, Commission B2

    Int. Institute of Refrigeration

    2002 to present

    Member, TC 3.4, 8.4, 8.11, SPC118, CEC

    ASHRAE

    2008-2011

    Chair, TC10.10

    ASHRAE

    2013 to present

    Chair, TC REEC in AES Division

    ASME

    2011 to 2013

    Vice Chair, TC REEC in AES Division

    ASME

    Certification:

    EPA Certified Universal Technician per Section 608 of Clean Air Act

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