Radermacher, Reinhard
Director, Center for Environmental Energy Engineering
Maryland Energy Innovation Institute
Center for Environmental Energy Engineering
EDUCATION
- Ph.D., Physics, Technical University Munich, Germany, 1981
- Diploma, Physics Technical University Munich, Germany, 1977
BACKGROUND
Dr. Radermacher is an internationally recognized expert in energy conversion systems; in particular heat pumps, air-conditioners and refrigeration systems and integrated Cooling, Heating and Power (CHP) Systems. His work has resulted in over 500 publications, including 3 books, more than 200 invention records and 15 patents. He was a visiting scientist and NATO scholar at the National Institute of Standards and Technology before joining the University of Maryland.
HONORS AND AWARDS
- 2015 J&E Hall Gold Medal, British institute of Refrigeration
- 2015 Gustav Lorentzen Medal, International Institute of Refrigeration
- 2006 ASHRAE Fellow
- 2004 ASHRAE Exceptional Service Award
- 2002 ASHRAE Distinguished Service Award
- 2001 Inductee, A. James Clark School of Engineering Innovation Hall of Fame
PROFESSIONAL MEMBERSHIPS
- Fellow ASHRAE, TC 8.3 and 8.9, 1992-2019, held positions of Secretary, Vice Chair, and Chair, Chair of ASHRAE's Strategic Reserch Plan Adhoc Committee 2019-2021
- IIR (International Institute of Refrigeration), Lifetime MemberPresident, Commission B2, 1999-2003
- U.S. Representative to International Energy Agency, Annex XIII, 1986-1990,
- International Journal of Refrigeration, Associate Editor (1998-2002)
- Editor-in-Chief (2002-2019) Science and Technology for the Built Environment, the Research Journal of ASHRAE
- Reviewer, Applied Thermal Engineering; International Journal of Heat and Mass Transfer; International Journal of Thermophysics; Numerical Heat Transfer, Chemical Engineering Research and Design, Part A; Transactions of the American Society of Heating, Refrigeration, and Air-Conditioning Engineers; Solar Energy Engineering; American Society of Mechanical Engineers, Transactions, and Conference Contributions
- Conference Co-Chairman, International Sorption Heat Pump Conference, New Orleans, 1994, Denver, 2005, College Park 2014
Vapor Compression Heat Pump, Refrigeration and Air-conditioning Systems, Software for the Design and Optimization of Thermal Systems, Single and Multi-Stage Absorption and Adsorption Systems, Conventional and Natural Working Fluids and Working Fluid Mixtures, Solar Cooling, Ocean Thermal Energy Technology, Cooling, Heating and Power (CHP) Systems Heat Pumps and Building Integration, Separate Sensible and Latent Cooling, Isothermal Compression, Compact air-to-refrigerant Heat Exchangers, Two-phase flow and heat transfer
Graduate and Undergraduate courses in energy conversion, renewable energy and heat pumping, air-conditioning and refrigeration
Recent Publications
- Eldeeb, R., Aute, V., Radermacher, R., Pillow plate heat exchanger weld shape optimization using approximation and parallel parameterized CFD and non-uniform rational B-splines, International Journal of Refrigeration 110, 121-131, February 1, 2020.
- Huang, Z., Ling, J., Bacellar, D., Hwang, Y., Aute, V., Radermacher, R., Airside thermal and hydraulic characteristics of compact bare tube heat exchanger under dry and wet conditions, International Journal of Refrigeration 110, 295-307, February 1, 2020.
- Qiao, Y., Cao, T., Muehlbauer, J., Hwang, Y., Radermacher, R., Experimental study of a personal cooling system integrated with phase change material, Applied Thermal Engineering 170, 115026, April 1, 2020.
- Huang, Z., Ling, J., Hwang, Y., Aute, V., Radermacher, R., Airside heat transfer and friction characteristics of a 0.8 mm diameter bare tube heat exchanger, Heat Transfer Engineering 41 (19-20), 1720-1730, November 12, 2020.
- Dhumane, R., Ling, J., Aute, V., Radermacher, R, Performance comparison of low GWP refrigerants for a miniature vapor compression system integrated with enhanced phase change material, Applied Thermal Engineering, Vol. 182, 116160, January 2021.
- Ling, J., Dalgo, D., Zhu, S., Qiao, Y., Wang, L., Aute, Srebric, J., Muehlbauer, J., Hwang, Y., Radermacher, R, Energy savings and thermal comfort evaluation of a novel personal conditioning device, Energy and Buildings, Vol. 241, 110917, June 15, 2021.
- Dhumane, R., Qiu, T., Ling, J., Aute, V., Hwang, Y., Radermacher, R., Kirkwood, A.C., Esformes, J., Investigation of the Variability in the Measurement of Cyclic Degradation Coefficient of Air Conditioning Systems, International Journal of Refrigeration, April 20, 2021.
- Suzukida, J., Bacellar, D., Radermacher, R., Home Retrofit Results In Net Positive Energy Operation, ASHRAE Journal, June 2021.
- Gao, L, Liu, T., Cao, T., Hwang, Y., Radermacher, R., Comparing deep learning models for multi-energy vectors prediction on multiple types of building, Applied Energy 301, 117486, 2021.
- Gao, L., Cao, T., Hwang, Y., Radermacher, R. Graph-based configuration optimization for S-CO2 power generation systems, Energy Conversion and Management 244, 114448, 2021.
- Wan, H., Cao, T., Hwang, Y., Radermacher, R., Chin, S., Comprehensive investigations on Life Cycle Climate Performance of unitary air-conditioners, International Journal of Refrigeration 129, 332-341, September 1, 2021.
- Gao, L., Tao, C., Hwang, Y., Radermacher, R., Robustness analysis in supercritical CO2 power generation system configuration optimization, Energy 242, March 1, 2022.
- Chen, D., Riaz, A., Aute, V., Radermacher, R., A solid-liquid model based on lattice Boltzmann method for phase change material melting with porous media in cylindrical heat exchangers, Applied Thermal Engineering, January 29, 2022.
- Qian, S., D. Catalini, J. Muehlbauer, B. Liu, H. Mevada, H. Hou, Y. Hwang, R. Radermacher, I. Takeuchi, High-performance multimode elastocaloric cooling system, Science. May 19, 2023; 380(6646):722-727. DOI:10.1126/science.adg7043.
- Baker, J., L. Cao, Y. Hwang*, C. Wang, and R. Radermacher, Performance investigation of an electrochemical ammonia compressor stack, Int. J. of Refrigeration, 153, 67-77, September 2023. https://doi.org/10.1016/j.ijrefrig.2023.05.020.
How Much Wood Could a Heat Pump Dry?
A CEEE paper makes the case for heat pumps as an eco-friendly alternative for drying loads of lumber throughout the world.Jump Start Program Gives CEEE Grad Students a Boost
A new workshop helps research assistants get up to speed on the fundamentals of HVAC technologies.UMD to Host International Graduate Engineering Course on Sustainability
The world goes to Maryland for a summer 2025 course on sustainable energy.DOE Ups Its Investment in UMD to Develop Eco-Friendly Heat Pumps
Agency awards UMD and partners $4.8 million to improve heat pump performance and safety.Maryland Engineering and Partners Win $26M to Develop Better HVACR Systems and Fight Climate Change
Clark School faculty and partners join prestigious U.S. National Science Foundation Engineering Research Center.Elastocaloric Cooling Named One of the Top 10 Emerging Technologies to Address Global Challenges
UMD researchers are developing breakthrough cooling technology that is climate-friendly and efficientUMD Staff Are the Students in a “Cool” New CEEE-Led Training
CEEE director trains UMD facilities management staff on air conditioning principles and applicationsCEEE Researcher Named Finalist in UMD’s 3MT Competition
Het Mevada Wows Clark School Judges in “Three Minute Thesis” ContestUMD ME Faculty Ranked in Top 2% of Scientists Worldwide
The department is home to some of the most widely-cited researchers in their fields.CEEE: Three Decades of Innovation
The UMD-based center marked its 30th anniversary at a gala event on June 9.Celebrating Two Decades of Partnership in Energy Education
Campus energy provider ENGIE concludes its 20th year of support for UMD engineering students.Cremaschi Appointed Auburn's Director of Undergraduate Research
UMD mechanical engineering alum to create further opporturtunites for impactfrul student research.UMD receives two new DOE Building Technologies awards
Takeuchi and Aute to lead projectsFailure is an Option
Alumni Profile: Cara MartinClark School Opens New Daikin Energy Innovation Laboratory
The Clark School formally opened the Daikin Energy Innovation Laboratory in honor of its more than 20-year partnership with global manufacturer Daikin.David Catalini Awarded Graduate Student Summer Research Fellowship
Plans to make significant strides in his research on elastocaloric cooling.Kailkhura and Vathsavai Win Best Consortium Student Presentation Award, Spring 2019
Research sponsors voted theirs best out of 15 presentations.Investing in Innovative Energy Technologies
2019 Energy Innovation Seed Grants awardedEight mechanical engineering students accepted to Future Faculty Program
The program prepares students to achieve career-long success in academia as educators and researchers.RoCo Advances to Beta Test Before Public Launch
Roving comforter offers personal cooling and significant energy savings.Lei Gao Admitted into the Future Faculty Program
Research topic is on micro-grid system optimization.CEEE Researchers Win ASHRAE Best Paper Award
Chosen as best out of 107 papers published in 2017 in Science and Technology for the Built Environment.Dr. Vikrant Aute Wins Provost’s Excellence Award for Professional Track Faculty
Recognized for his outstanding contributions in research.2018 ARPA-E Summit to Showcase UMD Innovations
UMD Energy Innovation Technologies dominateInaugural Energy Innovation Seed Grants awarded
$100K grants promote energy innovation technologyMechanical Engineering at ASME IMECE Conference
Professor Radermacher was a plenary speaker and ME alumnus Ryan Kennett won Best Student Paper at this year’s conference.Catalini and Leininger win 2017 GDF-Suez Chuck Edwards Memorial Fellowships
Fellowships of $25,000 each help fund the students’ research.Researchers Introduce RoCo, a Mobile Personal Heating and Cooling Device
UMD Invention Has Potential to Cut Energy Costs in Residential and Large Building ACUMD and Mobile Comfort demonstrate robotic cooling machine at 2017 ARPA-E Technology Showcase
UMERC is a multidisciplinary initiative dedicated to advancing the frontiers of energy science and technology.Five Mechanical Engineering Graduate Students Selected for Clark School Future Faculty Program
Graduate students selected for program designed to produce next great engineering professors.The University of Maryland Receives $50,000 Grant from Dominion Foundation
Award supports new research on high efficiency solar-powered cooling systems.UMD Startup To Solve Energy Conversion Challenges in Thermal Systems
Optimized Thermal Systems provides engineering consulting for HVAC&R systems.UMD Teams Awarded Over $5 Million to Improve Power Plant Cooling Technologies
The U.S. Energy Department’s Advanced Research Projects Agency-Energy (ARPA-E) funds two UMD teams to improve power plant cooling efficiency.Radermacher to Receive IIR Gustav Lorentzen Medal
The International Institute of Refrigeration recognizes Professor Reinhard Radermacher for his contributions to the field of refrigeration.Radermacher Receives Institute of Refrigeration J&E Hall Gold Medal
Reinhard Radermacher recognized for pushing research frontiers in energy efficiency and environmentally sustainable thermal systems.Saving Energy with ‘Personal HVAC Systems’
UMD awarded more than $5 million by ARPA-E to fund potentially transformational research.Radermacher and Hwang Awarded New Patent
Mechanical Engineering professors awarded patent for advancements in air conditioning technology.UMD Researchers Win $1.5 Million Department of Energy Award to Improve Home Cooling Efficiency
The Center for Environmental Energy Engineering to collaborate with the Oak Ridge National Laboratory.Professor Reinhard Radermacher to Receive Distinguished International Service Award
Mechanical Engineering Professor honored for contributions to international institutional programs.