Yunho Hwang's Headshot

Yunho Hwang

Executive Committee Member, reACT ThinkTank
Co-Director at Center for Environmental Energy Engineering, University of Maryland


Dr. Yunho Hwang is a worldly-known expert for “energy efficiency and new innovative energy systems research” in the field of refrigeration and air-conditioning (RAC). He started his industrial career at Samsung Electronics in 1983, developed energy efficient heat pump systems, and replaced ozone-depleting R12 with R134a in home refrigerators. Since he joined the University of Maryland in 1993, he developed R-22 alternative refrigerants for air-conditioning systems, and then started his research on enhanced CO2 systems. From 1997, he started Energy Efficiency and Heat Pumps Consortium as a director and successfully developed multiple innovative energy efficient and sustainable RAC technologies. In addition to developing energy efficient technologies such as two-stage CO2 split cycle, saturation cycle, and hybrid separate sensible and latent cooling technology, he has initiated new innovative researches on “not-in-kind” refrigeration systems beyond sorption technologies such as elastocaloric cooling systems and electrochemical compression for natural refrigerants. As an educator and researcher, he advised UMD students teams for multiple design competitions, introduced innovative thermal systems concepts, and helped team win either First or Second place.  His innovative research during last 35 years has resulted in 270 publications and 10 patents. His very high research impact is proven by Scopus data: h_index 29 with 2,761 citations. Since 1999, he has dedicated actively for IIR such as serving for Commission B1 and B2, and chairing the IIR working group on LCCP.  He has also helped the International Journal of Refrigeration by reviewing more than 100 papers and publishing high quality 35 articles with 2 articles listed as most cited since 2013.

Iconic Projects (Flickr Album)

Yunho Hwang (reACT ThinkTank) Iconic Projects

Ph.D. Mechanical Engineering
University of Maryland, College Park, MD, USA
M.S. Mechanical Engineering
University of Maryland, College Park, MD, USA
B.E. Mechanical Engineering
Korea University, Seoul, Republic of Korea