Cryogenic Eng. Lab. – Hongik University

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(1) Ho-Myung Chang, Joseph L. Smith, Jr., "Mass Transfer of Supersaturated Contaminants in Cryogenic Helium Heat Exchangers," International Journal of Heat and Mass Transfer, Vol. 33, No. 6, pp. 1299-1306, 1990.
(2) Jong Hoon Baik, Ho-Myung Chang, "An Exact Solution for Shuttle Heat Transfer," Cryogenics, Vol. 35, No. 1, pp. 9-13, 1995.
(3) Jong Hoon Baik, Ho-Myung Chang, "An Exact Expression for Shuttle Heat Transfer," Advances in Cryogenic Engineering, Vol. 41, pp. 1535-1542, 1996.
(4) I. S. Hwang, G. W. Hong, W. S. Park, B. J. Jun, H. M. Chang, "Conceptual Design Analysis of 4 K Irradiation Facility in Korean Hanaro Research Reactor," Advances in Cryogenic Engineering, Vol. 42, pp. 65-72, 1996.
(5) J. S. Park and H. M. Chang, "A Stirling Cycle Analysis with Gas-Wall Heat Transfer in Compressor and Expander," Cryocoolers, Vol. 9, pp. 147-156, 1997.
(6) H. M. Chang, S. J. Song, G. W. Hong, H. J. Lee, "Optimal Design of Sizes in Binary Current Leads Cooled by Cryogenic Refrigerator," Advances in Cryogenic Engineering, Vol. 43, pp. 1343-1350, 1998.
(7) Ho-Myung Chang, Steven W. Van Sciver, "Thermodynamic Optimization of Conduction-Cooled HTS Current Leads," Cryogenics, Vol. 38, No. 7, pp. 729-736, 1998.
(8) H. M. Chang, S. W. Van Sciver, "Optional Integration of Binary Current Lead and Cryocooler," Cryocoolers, Vol. 10, pp. 707-715, 1999.
(9) Ho-Myung Chang, Dae-Jong Park, Sangkwon Jeong, "Effect of Gap Flow on Shuttle Heat Transfer," Cryogenics, Vol. 40, No. 3, pp. 159-166, 2000.
(10) Ho-Myung Chang, Hyung-Jin Kim, "Development of a Thermal Switch for Faster Cool-Down by Two-Stage Cryocooler," Cryogenics, Vol. 40, No. 12, pp. 769-777, 2000.
(11) H. M. Chang, "Optimization of Two-stage Conduction Cooling For HTS Current Leads," Advances in Cryogenic Engineering, Vol. 45, pp. 1541-1548, 2000.
(12) S. Jeong, K. Nam, M. G. Kim, H. M. Chang, E. S. Jeong, "Experimental Study of the Heat Transfer in Pulse Tubes," Cryocoolers, Vol. 11, pp. 345-351, 2001.
(13) H. M. Chang, K. B. Kwon, "Magnet-Cryocooler Integration for Thermal Stability in Conduction-Cooled Systems," Advances in Cryogenic Engineering, Vol. 47, pp. 489-496, 2002.
(14) Ho-Myung Chang, Yeon Suk Choi, Steven W. Van Sciver, "Optimization of Operating Temperature in Cryocooled HTS Magnets for Compactness and Efficiency," Cryogenics, Vol. 42, No. 12, pp. 787-794, 2002.
(15) Ho-Myung Chang, Yeon Suk Choi, Steven W. Van Sciver, Thomas L. Baldwin, "Cryogenic Cooling Temperature of HTS Transformers for Compactness and Efficiency," IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2, pp. 2298-2301, 2003.
(16) Ho-Myung Chang, Yeon Suk Choi, Steven W. Van Sciver, Kyeong Dal Choi, "Cryogenic Cooling System of HTS Transformers by Natural Convection of Subcooled Liquid Nitrogen," Cryogenics, Vol. 43, pp. 589-596, 2003.
(17) H. M. Chang, Y. S. Choi, S. W. Van Sciver, J. R. Miller, "Optimization of Current Leads Cooled by Natural Convection of Vapor," Advances in Cryogenic Engineering, Vol. 49, pp. 944-951, 2004.
(18) Yeon Suk Choi, Steven W. Van Sciver, Ho-Myung Chang, "Natural Convection of Subcooled Liquid Nitrogen in a Vertical Cavity," Advances in Cryogenic Engineering, Vol. 49, pp. 1091-1098, 2004.
(19) Hyoungku Kang, Min Cheol Ahn, Hyung Jin Kim, Ho-Myung Chang, Tae Kuk Ko, "Design and Cooling Characteristic Results of Cryogenic System for 6.6 kV/200A Inductive Fault Current Limiter," IEEE Transactions on Applied Superconductivity, Vol. 14, No. 2, pp. 883-886, 2004.
(20) Hyoungku Kang, Hyung Jin Kim, Duck Kweon Bae, Min Cheol Ahn, Ho-Myung Chang, Tae Kuk Ko, "Sub-Cooled Nitrogen Cryogenic Cooling System for Superconducting Fault Current Limiter by Using GM-Cryocooler," Cryogenics, Vol. 45, No. 1, pp. 65-69, 2005.
(21) J. H. Baik, H. M. Chang, W. Notardonato "Two-Stage Refrigeration for Subcooling Liquid Hydrogen and Oxygen as Densified Propellants," Cryocoolers, Vol. 13, pp. 711-718, 2005.
(22) Ho-Myung Chang, Jung Joo Byun, Hong-Beom Jin, "Effect of Convection Heat Transfer on the Design of Vapor-cooled Current Leads," Cryogenics, Vol. 46, No. 5, pp. 324-332, 2006.
(23) Yeon Suk Choi, Ho-Myung Chang, Steven W. Van Sciver, "Performance of Extended Surface from a Cryocooler for Subcooling Liquid Nitrogen by Natural Convection," Cryogenics, Vol. 46, No. 5, pp. 396-402, 2006.
(24) Min Cheol Ahn, Duck Kweon Bae, Seong Eun Yang, Dong Keun Park, Tae Kuk Ko, Chanjoo Lee, Bok-Yeol Seok, Ho-Myung Chang, "Manufacture and Test of Small-Scale Superconducting Fault Current Limiter by Using the Bifilar Winding of Coated Conductor," IEEE Transactions on Applied Superconductivity, Vol. 16, No. 2, pp. 646-649, 2006.
(25) Tae Jung Kim, Hyoungku Kang, Min Cheol Ahn, Chanjoo Lee, Duck Kweon Bae, Bok-Yeol Seok, Ho-Myung Chang, Tae Kuk Ko, "Development of a HTS Magnet System for Long-Run Operation Test in Sub-Cooled Nitrogen," IEEE Transactions on Applied Superconductivity, Vol. 16, No. 2, pp. 1324-1327, 2006.
(26) Seong Eun Yang, Duck Kweon Bae, Hyoungku Kang, Min Cheol Ahn, Dong Keun Park, Bok-Yeol Seok, Ho Myoung Jang, Tae Kuk Ko, "The Experimental Analysis on the Thermal and Electrical Characteristics of Impregnating Materials for Superconducting Magnets," Journal of Physics: Conference Series, Vol. 43, pp. 686-689, 2006.
(27) Y. S. Choi, M. N. Barrios, H. M. Chang, S. W. Van Sciver, "Thermal Conductivity of Powder Insulations for Cryogenic Storage Vessels," Advances in Cryogenic Engineering, Vol. 51, pp. 480-487, 2006.
(28) H. M. Chang, J. J. Byun, J. H. Choi, C. J. Ha, M. J. Kim, H. M. Kim, T. K. Ko, "Thermal Diffusion of Heat Pulse in Subcooled Liquid Nitrogen," Advances in Cryogenic Engineering, Vol. 51, pp. 488-495, 2006.
(29) H. M. Chang, J. J. Byun,  J. R. Miller, "Optimal Current-Lead Design for the Rolls of Pierced-Metal Sheet," Advances in Cryogenic Engineering, Vol. 51, pp. 1276-1283, 2006.
(30) Kwanwoo Nam, Bok-Yeol Seok, Jung Joo Byun, Ho-Myung Chang, "Suppression of Bubbles in Subcooled Liquid Nitrogen under Heat Impulse," Cryogenics, Vol. 47, No. 7, pp. 442-449, 2007.
(31) Min Cheol Ahn, Dong Keun Park, Seong Eun Yang, Min Jae Kim, Ho-Myung Chang, Yong Soo Yoon, Bok-Yeol Seok, Jung-Wook Park, Tae Kuk Ko, "Recovery Characteristics of Resistive SFCL Wound With YBCO Coated Conductor in a Power System," IEEE Transactions on Applied Superconductivity, Vol. 17, No. 2, pp. 1859-1862, 2007.
(32) Dong Keun Park, Min Cheol Ahn, Seong Eun Yang, Yong Soo Yoon, Bok-Yeol Seok, Chanjoo Lee, Ho-Myung Chang, Tae Kuk Ko, "Development of 220V/300A Class Non-Inductive Winding Type Fault Current Limiter Using 2G HTS Wire," IEEE Transactions on Applied Superconductivity, Vol. 17, No. 2, pp. 1863-1866, 2007.
(33) Ho-Myung Chang, Yun Sik Kim, Ho Min Kim, Haigun Lee, Tae Kuk Ko, "Current-Lead Design for Cryocooled HTS Fault Current Limiters," IEEE Transactions on Applied Superconductivity, Vol. 17, No. 2, pp. 2244-2247, 2007.
(34) J. W. Moon, Y. P. Lee, Y. W. Jin, E. S. Hong, H. M. Chang, "Cryogenic Refrigeration Cycle for Re-Liquefaction of LNG Boil-Off Gas," Cryocoolers, Vol. 14, pp. 629-635, 2007.
(35) H. G. Lee, H. M. Kim, B. W. Lee, I. S. Oh, H. R. Kim, O. B. Hyun, J. Sim, H. M. Chang, J. Bascunan, Y. Iwasa, "Conduction-Cooled Brass Current Leads for a Resistive Superconducting Fault Current Limiter (SFCL) System," IEEE Transactions on Applied Superconductivity, Vol. 17, No. 2, pp. 2248-2251, 2007.
(36) Hyoungku Kang, Chanjoo Lee, Kwanwoo Nam, Yong Soo Yoon, Ho-Myung Chang, Tae Kuk Ko, Bok-Yeol Seok, "Development of a 13.2 kV/630 A (8.3 MVA) High Temperature Superconducting Fault Current Limiter," IEEE Transactions on Applied Superconductivity, Vol. 18, No. 2, pp. 628-631, 2008.
(37) Seong Eun Yang, Min Cheol Ahn, Dong Keun Park, Ki Sung Chang, Bok-Yeol Seok, Ho-Myung Chang, Jung-Wook Park, Tae Kuk Ko, "Experimental Method for Determining the Recovery of Superconducting Fault Current Limiter Using Coated Conductor in a Power System," IEEE Transactions on Applied Superconductivity, Vol. 18, No. 2, pp. 652-655, 2008.
(38) Ho-Myung Chang, Min-Jee Kim, Jung-Wook Sim, Bang-Wook Lee, Il-Sung Oh, "A Compact Cryocooling System with Subcooled Liquid Nitrogen for Small HTS Magnets," IEEE Transactions on Applied Superconductivity, Vol. 18, No. 2, pp. 1479-1482, 2008.
(39) Min-Jee Kim, Ho-Myung Chang, "Natural Circulation Loop of Subcooled Liquid Nitrogen," Advances in Cryogenic Engineering, Vol. 53, pp. 59-66, 2008.
(40) Ho-Myung Chang, Min Jee Kim, "Optimization of Conduction-Cooled Current Leads with Unsteady Operating Current," Cryogenics, Vol. 49, No. 5, pp. 210-216, 2009.
(41) Ho-Myung Chang, Myung Jin Chung, Min Jee Kim, Seong Bum Park, "Thermodynamic Design of Methane Liquefaction System Based on Reversed-Brayton Cycle," Cryogenics, Vol. 49, No. 6, pp. 226-234, 2009.
(42) M. J. Kim, M. S. Bak, H. M. Chang, T. A. Painter, S. W. Van Sciver, "A Rapid Vent System of Liquid-Nitrogen Cryostat," Proceedings of the 22nd International Cryogenic Engineering Conference, pp. 567-572, 2009.
(43) Ho-Myung Chang, Myung Jin Chung, Seong Bum Park, "Cryogenic Heat-Exchanger Design for Freeze-out Removal of Carbon Dioxide from Landfill Gas," Journal of Thermal Science and Technology, Vol. 4, No. 3, pp. 362-371, 2009.
(44) Ho-Myung Chang, Gyong Hyon Lee, Jungwook Sim, Kwon-Bae Park, Il-Sung Oh, Jung-Bin Song, Haigun Lee, "Two-Stage Cryocooling Design for Hybrid Superconducting Fault Current Limiter," IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, pp. 2047-2050, 2010.
(45) Min Jee Kim, Kwang-Lok Kim, Haigun Lee, Ho-Myung Chang, "Current-Lead Design for Variable Electric Current in HTS Power Applications," IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, pp. 1725-1728, 2010.
(46) J. H. Lee, J. B. Song, K. L. Kim, K. J. Kim, M. J. Kim, H. M. Chang, H. G. Lee, "Optimal Arrangement of Current Leads to Minimize Electromagnetic Force," IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, pp. 1741-1746, 2010.
(47) J. B. Song, K. J. Kim, K. L. Kim, J. H. Lee, H. M. Kim, G. H. Lee, H. M. Chang, D. K. Park, T. K. Ko, H. G. Lee, "Thermal and Electrical Stabilities of Solid Nitrogen(SN2) Cooled YBCO Coated Conductors for HTS Magnet Applications," IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, pp. 2172-2175, 2010.
(48) H. M. Chang, M. J. Chung, S. B. Park, "Integrated Cryogenic System for CO2 Separation and LNG Production from Landfill Gas,"  Advances in Cryogenic Engineering, Vol. 55, pp. 278-285, 2010.
(49) H. M. Chang, S. H. Ryu, M. J. Kim, "Performance of Heat Exchanger for Subcooling Liquid Nitrogen with a GM Cryocooler," Advances in Cryogenic Engineering, Vol. 55, pp. 345-352, 2010.
(50) K.L. Kim, J.B. Song, J.H. Choi, S.H. Kim, D.Y. Koh, K.C. Seong, H.M. Chang, H.G. Lee, "The design and testing of a cooling system using mixed solid cryogen for a portable superconducting magnetic energy storage system," Superconductor Science and Technology, Vol. 23, No. 12, 2010.
(51) Ho-Myung Chang, Seung Hoon Ryu, “Heat exchanger for subcooling liquid nitrogen with a regenerative cryocooler,” Cryogenics, Vol. 51, No. 3, pp.132-138, 2011.
(52) Ho-Myung Chang, Myung Jin Chung, Sanggyu Lee, Kun Hyung Choe, “An efficient multi-stage Brayton-JT cycle for liquefaction of natural gas,” Cryogenics, Vol. 51, No. 6, pp.278-286, 2011.
(53) Min Jee Kim, Ho-Myung Chang, Jungwook Sim, Sung-Woo Yim, Ok-Bae Hyun, "Emergency Blackout Operation of Cryogenic System for Hybrid SFCL," IEEE Transactions on Applied Superconductivity, Vol. 21, No. 3, pp. 1284-1287, 2011.
(54) H. M. Chang, S.Y. Lee, M.J. Kim, S.B. Park, "Experiment on freeze-out removal of carbon dioxide from methane mixture," Proceedings of the Twenty-Third International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2010, pp. 251-256, 2011.
(55) H. M. Chang, J.H. Park, H.S. Woo, S. Lee, K.H. Choe, "New concept of natural gas liquefaction cycle with combined refrigerants," Proceedings of the Twenty-Third International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2010, pp. 257-262, 2011. 
(56) Ho-Myung Chang, Seung Ill Lee, "Optimization of Current Leads for HTS Elements Immersed in Liquid Nitrogen," IEEE Transactions on Applied Superconductivity, Vol. 22, No. 3, 4800904, 2012.
(57) H. M. Chang, C. W. Park, H. S. Yang, S. H. Sohn, J. H. Lim, S. R. Oh, S. D. Hwang, "Thermodynamic Design of 10 KW Brayton Cryocooler for HTS Cable," Advances in Cryogenic Engineering, Vol. 57, pp. 1664-1671, 2012.
(58) H. M. Chang, J.H. Park, S. Lee, K. H. Choe, "Combined Brayton-JT Cycles with Pure Refrigerants for Natural Gas Liquefaction," Advances in Cryogenic Engineering, Vol. 57, pp. 1779-1786, 2012.
(59) Ho-Myung Chang, Hye Su Lim, Kun Hyung Choe, "Effect of multi-stream heat exchanger on performance of natural gas liquefaction with mixed refrigerant," Cryogenics, Vol. 52, pp. 642-647, 2012.
(60) H. M. Chang, J. H. Park, K. S. Cha, S. Lee, K. H. Choe, "Modified Reverse-Brayton Cycles for Efficient Liquefaction of Natural Gas," Cryocoolers, Vol. 17, pp. 435-442, 2012.
(61) Chang H.M., Park C.W., Yang H.S., Hwang S.D., "Heat-Exchanger Design of 10 kW Brayton Cryocooler for HTS Cable Application," Proceedings of the Twenty-Fourth International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2012, pp. 411-414, 2013.
(62) Ho-Myung Chang, Seung Ill Lee, "Current Leads for Conduction-Cooled Magnets at 20-30 K," IEEE Transactions on Applied Superconductivity, Vol. 23, no. 3, 4801004, 2013.
(63) Ho-Myung Chang, Kyung Hyun Gwak, Hyung Suk Yang, Si-Dole Hwang, "Cross-flow heat exchangers for anti-freezing of liquid nitrogen," Cryogenics, Vol. 57, pp. 122-128, 2013.
(64) Ho-Myung Chang, Jae Hoon Park, Kyung Hyun Gwak, Kun Hyung Choe, "Nitrogen Expander Cycles for Large Capacity Liquefaction of Natural Gas," Advances in Cryogenic Engineering, Vol. 1573, pp. 1652-1657, 2014.
(65) Ho-Myung Chang, Chan Woo Park, Hyung Suk Yang, Si Dole Hwang, "Dynamic Simulation of 10 kW Brayton Cryocooler for HTS Cable," Advances in Cryogenic Engineering, Vol. 1573, pp. 1770-1775, 2014.
(66) Ho-Myung Chang, Seung Ill Lee, "Conduction-Cooling System for Superconducting Magnets at 20-30 K," IEEE Transactions on Applied Superconductivity, Vol. 24, no. 3, 3800204, 2014.
(67) Ho-Myung Chang, Hye Su Lim, Kun Hyung Choe, "Thermodynamic Design of Natural Gas Liquefaction Cycles for Offshore Application," Cryogenics, (in press).