Mechanical Engineering Faculty Profile:

Dr. Reinhard Radermacher
Professor of Mechanical Engineering

Advanced Energy Conversion Systems, Cooling, Heating and Power (CHP) Systems, Optimization of Thermal Systems, Vapor Compression Heat Pump and Refrigeration Systems, Single and Multi-Stage Absorption Systems, Design, Testing and Simulation, Sorption Heat Pumps: Design, Testing and Simulation, Energy and Environment, Working Fluid Mixtures

(301) 405-5286 | raderm@umd.edu | website | Room 4164, Bldg 088, Glenn L. Martin Hall

Vita
Dr. Radermacher, Director of the Center for Environmental Energy Engineering (CEEE), is an internationally recognized expert in energy conversion systems; in particular integrated Cooling, Heating and Power (CHP) Systems, heat pumps, air-conditioners and refrigeration systems. His work has resulted in over 200 publications, including 3 books, numerous invention records and 9 patents. He was a visiting scientist and NATO scholar at the National Institute of Standards and Technology before joining the University of Maryland.  He is an ASHRAE Fellow and serves as the editor of the ASHRAE HVAC&R Research Journal.

Education
PhD ('81 )- Physics Munich Institute of Technology (Muenchen, Germany)
MS ('77) - Physics Munich Institute of Technology (Muenchen, Germany)


Recent Publications
Cowie, M., A. Marantan, P. Garland, and R. Radermacher. CHP for Buildings: The Challenge of Delivering Value to the Commercial Sector, ASME Symposium for Emerging and New Technologies for Heat Pump/Refrigeration Cycles and CHP, 2002.

iang, H. and R. Radermacher. A Distributed Model of a Space Heat Pump Under Transient Conditions, International Journal of Energy Research, Vol. 27, pp. 145-160, 2003.

L. Cremaschi, Y. Hwang, R. Radermacher, Experimental Investigation of Oil Retention in Air Conditioning Systems, International Journal of Refrigeration, Vol. 28, pp.1018-1028, 2005.

Radermacher R., Cremaschi L., Schwentker R. A., Modeling of Oil Retention in the Suction Line and Evaporator of Air-conditioning Systems, HVAC&R Research, Vol 12, No 1, 35-56, 2006.

Hwang, Y. D.-H. Jin, R. Radermacher, Comparison of R-290 and Two HFC Blends for Walk-In Refrigeration Systems, Submitted to Submitted to Int. Journal of Refrigeration in Oct. 2006, Accepted Nov. 2006.

Hwang, Y., J.-P. Lee, and R. Radermacher, Oil Distribution in A Transcritical CO2 Air-Conditioning System, Submitted to Applied Thermal Engineering in Oct. 2006, Accepted Jan. 2007.

Rin, Y., Y. Hwang, and R. Radermacher, Convective Gas Cooling Heat Transfer and Pressure Drop Characteristics of Supercritical CO2/Oil Mixture in a Minichannel Tube, Submitted to Int. Journal of Heat and Mass Transfer in Oct. 2006, Accepted Jan. 2007.

Gado, A., Y. Hwang, R. Radermacher, A Dynamic Test Facility for Mobile Air Conditioning Systems, Submitted to Int. Journal of Refrigeration in Sep. 2006.

Hwang, Y., R. Radermacher, and T. Hirata, Oil Concentration Measurement of CO2/PAG Mixture, Submitted to Int. Journal of Refrigeration in Oct. 2006.

D.-Y. Jin, Y. Hwang, R. Radermacher, Refrigerant Distribution in Minichannel Evaporator Manifolds, Submitted to HVAC&R Research Journal in Sep. 2006.

Gado, A., Y. Hwang, and R. Radermacher, Dynamic Behavior of Mobile Air Conditioning Systems, Submitted to HVAC&R Research Journal in Sep. 2006.

Hwang, Y. and R. Radermacher, Performance Potential of CO2 Cycle with a Linear Compressor, to HVAC&R Research Journal, Accepted, Feb. 2007.

Liao X., R. Radermacher, Absorption chiller crystallization control strategies for integrated cooling heating and power systems, Accepted, International Journal of Refrigeration, Jan, (2007).

Scientific and Professional Membership
Director, Center for Environmental Energy Engineering (CEEE); ASHRAE Fellow, 2006; ASHRAE Member: TC 7.1, Refrigerators, 1992-1999; Program Chair, 1994-1996; TC 8.3, Heat Activated Systems; held positions of Secretary, Vice Chair, and Chair; IIR (International Institute of Refrigeration), President, Commission B2, 1999-2003; U.S. Representative to International Energy Agency, Annex XIII, 1986-1990; International Journal of Refrigeration, and Associate Editor (1998-2002), Editor (2002-present) HVAC&R 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; International Institute of Refrigeration; Conference Co-Chairman, International Sorption Heat Pump Conference, Denver, 2005; Conference Co-Chairman, Int. Absorption Heat Pump Conference, New Orleans, 1994.

Honors and Awards
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; William E. Kirwan Inventor of the Year Award, 1997; Faculty Achievement Award, ERC, 1996; Invention of the Year Award, 1995

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