Get Adobe Flash player

CEEE Personnel

Reinhard Radermacher

Dr. Reinhard Radermacher, Director
Minta Martin Professor of Engineering
Consortia: All

Reinhard Radermacher holds a diploma and Ph.D. in physics from the Technical University of Munich and conducts research in heat transfer and working fluids for energy conversion systems — in particular heat pumps, air-conditioners, refrigeration systems, and integrated cooling heating and power systems. His work resulted in more than 300 publications, as well as numerous invention records and ten patents. He has co-authored three books on absorption and vapor compression heat pumps.  His research includes the development of software for the design and optimization of heat pumps and air-conditioners which is now in use at more than 60 companies worldwide. Dr. Radermacher is Minta Martin professor of Mechanical Engineering and director and co-founder of the Center for Environmental Energy Engineering (CEEE). He represents the U.S. at the International Energy Agency Annexes 13, 34 and 40, is past vice president of Commission B1, and past president of Commission B2 of the International Institute of Refrigeration (IIR). He is Fellow ASHRAE and also holds memberships in ASME, SAE, DKV and IIR and serves as the editor of the ASHRAE HVAC&R Research Journal. He is co-founder and co-owner of Optimized Thermal Systems, providing custom simulation software services and innovative solutions to energy conversion challenges.
Email: raderm@umd.edu  |  Profile

Yunho Hwang

Dr. Yunho Hwang, Associate Director
Research Professor and Director
Consortia: ACTA/SAES

Yunho Hwang is director of the Alternative Cooling Technologies and Application Consortium in CEEE. Dr. Hwang works extensively in refrigerant alternatives research, particularly involving carbon dioxide. His focus is on enhancing understanding of the transcritical carbon dioxide cycle through cycle simulation, model development and experimental studies. His career spans more than twenty years, including ten years of industrial experience at Samsung Electronics as a senior researcher in the area of air conditioning and refrigeration. Dr. Hwang is the author of two books, Vapor Compression Heat Pumps with Refrigerant Mixtures, with Reinhard Radermacher, 2005, and Technical Heat Transfer, 1988, and was a contributor to Automotive Air-Conditioning, 2nd Edition, with the chapter “Alternative Refrigeration Cycle”, 2002. He has also published nearly 100 articles and papers in the field. He is a member of ASHRAE, SAE, ASME, and IIR.
Email:  yhhwang@umd.edu  |  Website

Michael Ohadi

Dr. Michael Ohadi
Professor of Mechanical Engineering and CEEE Founding Faculty Member
Consortia: AHX/EC

Dr. Ohadi is a CEEE founding faculty member and founder of the Advanced Heat Exchangers and Electronics Cooling Consortium. He is internationally recognized for his research in heat and mass transfer and smart energy systems . He is the inventor/co-inventor of eight issued U.S. patents and has published more than 150 refereed technical publications. Dr. Ohadi has actively participated in promoting the support for fostering technological innovation and entrepreneurship. In 2002 he was featured in Washington Post for his efforts involving innovation and technology transfer. From 2003 to 2010 he was on leave assignment to the Petroleum Institute (Abu Dhabi) where served as Director of Mechanical Engineering (2003-2006) and Provost and Acting President (2006 to 2010). He is a fellow member of both ASME and ASHRAE and has won numerous awards from both societies.
Email: ohadi@umd.edu  |  Website

Mary Baugher

Mary Ellen Collins Baugher
Assistant to the Director
Consortia: All

Mary Collins Baugher joined CEEE in 2008, previously working for the University of Maryland as a writer for the Engineering Research Center and as a marketing assistant director for the Office of Continuing and Extended Education.  She also has many years of experience working in nonprofit and higher education as an administrative and public relations professional.  A veteran, she served for 14 years in the medical and public affairs branches of the Army National Guard. Mrs. Baugher has a B.A. degree in Journalism from the University of Maine.  At CEEE she manages the website, edits manuscripts and papers, organizes meetings and events, along with administration.  She also serves as the assistant editor for the ASHRAE HVAC&R Research Journal.  Email: mbaugher@umd.edu

Tanya Pringle

Tanya Pringle
Administrative Assistant II
Consortia: All

Tanya Pringle joined the CEEE team in June 2012 as Administrative Assistant II. Ms. Pringle, a native Marylander, was a long-time employee in finance and administration at Prince George’s Community College before starting with CEEE. Earlier in her career she worked for Habitat for Humanity. At CEEE, Ms. Pringle arranges travel, provides meeting and event support, and conducts office management.  Email. tpringle@umd.edu

Faculty Members

Ken Kiger Dr. Kenneth Kiger
Associate Professor of Mechanical Engineering
Consortia: ACTA/FuelWorks

Kenneth Kiger is a member of the Clark School Academy of Distinguished Professors. His research interests include fluid mechanics and experimental techniques, specifically in the topics of multi-phase flows, particle/turbulence interaction, and turbulent mixing in complex geometries. Current project topics include applying Particle Image Velocimetry (PIV) to the suspension of sediment in turbulent channel flows, air entrainment by plunging liquid jets, fundamental dynamics of spray cooling for electronic applications, and the effects of turbulent mixing on safety issues within Pressurized Water Reactors of nuclear power plants. Dr. Kiger earned his Ph.D. at the University of California, San Diego, in. 1995.
Email: kkiger@umd.edu  |  Profile

Amir Riaz Dr. Amir Riaz
Assistant Professor of Mechanical Engineering
Consortia: ISOC

Dr. Riaz is an expert in the development of methods for perturbation analysis of interfacial instability in multiphase flow and numerical methods for quantifying the long-term nonlinear evolution of unstable flow structures. Specifically, his research has focused on studies of carbon dioxide sequestration and oil and gas reservoir management. After receiving his Ph.D. from the University of California, Santa Barbara, in 2003, he continued his research with a post-doctoral position at Stanford. He holds numerous memberships in professional societies, including the American Society of Mechanical Engineers, the American Physical Society, the American Geophysical Union, Society of Petroleum Engineers, the European Association of Geoscientists and Engineers, and the Society of Industrial and Applied Mathematics.
Email: ariaz@umd.edu  |  Profile

Bao Yang Dr. Bao Yang
Associate Professor of Mechanical Engineering
Consortia: AHX/EC

Bao Yang holds a Ph.D. in mechanical engineering from the University of California, Los Angeles, and a Ph.D. in Physics from the University of Science and Technology of China His research interests include micro/nanoscale thermal transport and energy conversion; thermal science and its applications in electrical engineering and material science; micro/nano devices; MEMS and nanotechnology. He is a member of the American Society of Mechanical Engineers; Materials Research Society and the International Thermoelectrics Society. He is a member of the American Physical Society.  Email: baoyang@umd.edu  |  Profile

Jelena Srebric

Dr. Jelena Srebric
Professor of Mechanical Engineering and Professor of Architecture
Consortia: Sustainability in the Built Environment

Dr. Jelena Srebric joins the CEEE faculty as a Professor of Mechanical Engineering, where she will be teaching primarily graduate students and working in collaboration with the School of Architecture at the University of Maryland in founding the new Cluster in Sustainability in the Built Environment.  The cluster laboratory will feature an environmental chamber, and equipment for onsite energy monitoring, and occupant perception.Before coming to UMD, she was a Professor of Architectural Engineering and a Professor of Mechanical Engineering at The Pennsylvania State University (PSU) for many years. There, she designed and built a state-of-the art environmental chamber facility at PSU for energy and indoor air quality studies.  Prof. Srebric holds a Ph.D. degree from the Massachusetts Institute of Technology in building technology, and M.S. and B.S. degrees in Mechanical Engineering from the University of Belgrade. Her work is sponsored by several grants from the Department of Energy and the National Science Foundation (NSF). She is a recipient of both NSF and National Institute of Occupational Safety and Health (NIOSH) career awards. She published extensively in the field, and received several research awards (including one from the International Academy of Indoor Air Sciences), is an editorial board member of five international journals, and an associate editor of HVAC&R Research Journal published by the American Society of Heating, Ventilating and Air Conditioning Engineers (ASHRAE). Her work in ASHARE was recognized with an outstanding service award.
Email: jsrebric@umd.edu  |  Profile

Research Faculty

Vikrant Aute

Dr. Vikrant C. Aute
Assistant Research Scientist and Director, ISOC
Consortia: ISOC

Vikrant Aute serves as director of the Integrated Systems Optimization Consortium.  Dr. Aute has twelve years of experience in the development of simulation and optimization software for thermal systems. His current research focuses on approximation assisted multi-objective multidisciplinary optimization and its application to design of thermal systems and the continued development of heat exchanger and vapor compression system simulation tools. His industrial experience includes work at Thermax Ltd.(India), Tata Infotech Ltd. (India) and Daikin Industries Ltd. (Japan). He is an active member of ASHRAE and has served on committees as voting member. He holds multiple professional qualifications including Microsoft Certified Professional and Microsoft Certified Systems Administrator. Email: vikrant@umd.edu | Website

Dr. Choo

Dr. Kyosung Choo
Research Scientist, Small and Smart Thermal Systems
Consortia: AHX/EC

Dr. Choo is a Research Scientist in the Small and Smart Thermal Systems at the University of Maryland, College Park. He received his Ph.D. in 2011 in Mechanical Engineering at Korea Advanced Instituted of Science and Technology. Since 2011, he has been a member of research faculty at the University of Maryland. His research interests include design and development of two-phase flow in microchannels, jet impingement, energy system cooling. Dr. Choo is the author of a book, Next Generation Microchannel Heat Exchanger, with Dr. Michael Ohadi, 2012. He has also published over 20 articles and papers in the field. He is recipient of Outstanding Research Award for Brain Korea 21 (2010) and Outstanding Academic Award (2011). Email: kchoo@umd.edu | Website

Serguei Dessiatoun

Dr. Serguei Dessiatoun
Associate Research Scientist
Consortia: AHX/EC

Dr. Sergeui Dessiatoun is an Associate Research Professor of Mechanical Engineering at the University of Maryland, College Park. He has over thirty years of extensive experience in mechanical engineering design including design and development of thermal and hydraulic loops, aerospace and space cooling systems, environmental control systems, refrigeration and heat transfer systems, heat engines, diesel and gasoline fuel injection systems, and electronic control systems. Dr. Dessiatoun has been intrinsically involved in the ongoing research in the Smart and Small Thermal Systems (S2TS) laboratory at the University of Maryland. Dr. Dessiatoun is the author or co-author of over 30 patents in the area of energy transfer and conversion, including the concept of force-fed heat transfer technology that is the base for this presentation.
Email: ser@umd.edu | Website

 

Hoseong Lee

Dr. Hoseong Lee
Faculty Research Associate
Consortia: ACTA

Hoseong Lee graduated from the University of Maryland with a Ph.D. Degree in 2012. His research focuses on improving the efficiency of energy conversion systems including power generation and heat pump systems. His research interest includes renewable energy utilization and two-phase heat transfer phenomenons. He had an industrial career at a thermal management department in an automotive company. Dr. Lee is an expert in the CFD simulation, optimization and experimental test of thermal and fluid systems. He is actively involved in publishing patents and papers in this field. He is a member of ASHRAE. Email: hslee@umd.edu
 

Jiazhen Ling

Dr. Jiazhen Ling
Faculty Research Associate
Consortia: ACTA/ISOC

Dr. Jiazhen Ling recieved his Ph.D. in Mechanical Engineering from the University of Maryland in 2011. Since then, he has been a Faculty Research Associate in CEEE. Dr. Ling's dissertation focused on the study of separate sensible and latent cooling systems and the design of a radiative heat exchanger.  He has published three journal papers and six confernece papers duirng his Ph.D. study.  He is a member of both ASHRAE and AEE and is an EPA certified Universal technician.  Dr. Ling was a recipent of an ASHRAE scholarship and a GDF Suez Energy scholarship..  Email: jiazhen@umd.edu

Jan Muehlbauer

Jan Muehlbauer
Faculty Research Associate
Consortia: ACTA

Jan Muehlbauer is designing and testing a thermo electric subcooler for air conditioning systems and a Laview-based data acquisition software and automated Excel analysis for Coca Cola. He is working in collaboration with the university’s facilities office and vendors to decommission two buildings’ integrated combined heat and power (CHP) systems. He designed a complex test facility for refrigerant maldistribution measurements in manifold headers, and he supervises graduate students in system design, instrumentation, and control and analysis of collected data and problem solving. Mr. Muehlbauer earned his Master of Science degree in Mechanical Engineering at the University of Maryland in 2006, with a focus on Thermal-Fluid Sciences. As a Graduate Research Assistant with CEEE he designed heat exchangers for low temperatures. He is a Certified International/ European/ German Welding Engineer, and has a degree in process engineering from the University of Applied Sciences Mannheim, Germany. He is an EPA certified Universal technician and member of ASHRAE.  Email: muehlie@umd.edu

Amir Shooshtari

Dr. Amir Shooshtari
Associate Research Scientist
Consortia: AHX/EC

Amir H. Shooshtari is a Research Scientist in the Small and Smart Thermal Systems at the University of Maryland, College Park.  He received his Ph.D. in 2004 in Mechanical Engineering. Since 2005, he has been a member of research faculty at the University of Maryland.  His research interests include design and development of advanced thermofluid processes, electronic cooling, two-phase flow and fluid flow in porous media. Dr. Shooshtari is the author or co-author of over 20 publications in international journals and conferences. He is a member of ASHARE and ASME. He is recipient of ASHRAE Grant-in-aid Fellowship (2003–2004) and ASHRAE National Capital Chapter Scholarship Award (2003). Email: amir@umd.edu | Website

Lopa Vemulapalli

Lopamudra Vemulapalli
Faculty Research Assistant
Consortia: ISOC

Lopamudra Vemulapalli joined CEEE as a Faculty Research Assistant in 2012. She is a software professional with many years of experience in software analysis, design, development, installation, configuration and maintenance of software applications.  Ms. Vemuapalli earned her Bachelor of Engineering degree from Acharya Nagarjuna University, India in 2004. Before joining CEEE, she worked as a senior software engineer at UPS. In her professional career, she also worked in various automation projects and aerospace projects. At CEEE she is involved in design, development and maintenance of optimization and thermal systems modeling tools. Email: vlopa@umd.edu