Faculty Directory

Radermacher, Reinhard

Radermacher, Reinhard

Minta Martin Professor
Director, Center for Environmental Energy Engineering
Mechanical Engineering
Maryland Energy Innovation Institute
Center for Environmental Energy Engineering
4164A Glenn L. Martin Hall, Building 088
Website(s):

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 integrated Cooling, Heating and Power (CHP) Systems, heat pumps, air-conditioners and refrigeration 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

  • Director, Center for Environmental Energy Engineering (CEEE)
  • ASHRAE Member: TC 8.3 and 8.9, 1992-2019
  • 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-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
  • International Institute of Refrigeration, Lifetime Member
  • Conference Co-Chairman, International Sorption Heat Pump Conference, New Orleans, 1994, Denver, 2005, College Park 2014

 

Vapor Compression Air-conditioning Software for the Design and Optimization of Thermal Systems Heat Pumping and Refrigeration 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


2015

  • Al-Alili, Ali; Hwang, Yunho; Radermacher, Reinhard, Performance of a desiccant wheel cycle utilizing new zeolite material: Experimental investigation, ENERGY  Volume: 81   Pages: 137-145   Published: MAR 1 2015
  • Qiao, Hongtao; Aute, Vikrant; Radermacher, Reinhard, Transient modeling of a flash tank vapor injection heat pump system - Part I: Model development, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 49   Pages: 169-182   Published: JAN 2015
  • Qiao, Hongtao; Xu, Xing; Aute, Vikrant; Radermacher, Reinhard, Transient modeling of a flash tank vapor injection heat pump system - Part II: Simulation results and experimental validation, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 49   Pages: 183-194   Published: JAN 2015

2014

  • Li, Gang; Hwang, Yunho; Radermacher, Reinhard, Experimental investigation on energy and exergy performance of adsorption cold storage for space cooling application, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 44   Pages: 23-35   Published: AUG 2014
  • Al-Alili, Ali; Hwang, Yunho; Radermacher, Reinhard , A hybrid solar air conditioner: Experimental investigation, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 39   Special Issue: SI   Pages: 117-124   Published: MAR 2014
  • Huang, L; Lee, MS (Lee; Saleh, K; Aute, V; Radermacher, R, A computational fluid dynamics and effectiveness-NTU based co-simulation approach for flow mal-distribution analysis in microchannel heat exchanger headers, APPLIED THERMAL ENGINEERING  Volume: 65   Issue: 1-2   Pages: 447-457   Published: APR 2014

2013

  • Experimental investigation of energy and exergy performance of short term adsorption heat storage for residential application
  • Saleh, K; Abdelaziz, O; Ante, V ; Radermacher, R; Azarm, S, Approximation assisted optimization of headers for new generation of air-cooled heat exchangers, APPLIED THERMAL ENGINEERING  Volume: 61   Issue: 2   Special Issue: SI   Pages: 817-824   Published: NOV 3 2013
  • Lee, H; Hwang, Y; Radermacher, R; Chun, HH, Thermal and hydraulic performance of sinusoidal corrugated plate heat exchanger for low temperature lift heat pump, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 36   Issue: 3   Pages: 689-700   Published: MAY 2013
  • Xu, Xing; Hwang, Yunho; Radermacher, Reinhard, Performance comparison of R410A and R32 in vapor injection cycles, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 36   Issue: 3   Pages: 892-903   Published: MAY 2013
  • Li, G; Hwang, Y; Radermacher, R; Chun, HH, Review of cold storage materials for subzero applications, ENERGY  Volume: 51   Pages: 1-17   Published: MAR 1 2013
  • Gluesenkamp, Kyle; Hwang, Yunho; Radermacher, Reinhard, High efficiency micro trigeneration systems, APPLIED THERMAL ENGINEERING  Volume: 50   Issue: 2   Special Issue: SI   Pages: 1480-1486   Published: FEB 2013

2012

  • Li, Gang; Hwang, Yunho; Radermacher, Reinhard, Review of cold storage materials for air conditioning application, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 35   Issue: 8   Pages: 2053-2077   Published: DEC 2012
  • Lee, Hoseong; Saleh, Khaled; Hwang, Yunho; Radermacher, Reinhard, Optimization of novel heat exchanger design for the application to low temperature lift heat pump, ENERGY  Volume: 42   Issue: 1   Pages: 204-212   Published: JUN 2012
  • Al-Alili, A; Hwang, Y; Radermacher, R; Kubo, I, A high efficiency solar air conditioner using concentrating photovoltaic/thermal collectors, APPLIED ENERGY  Volume: 93   Special Issue: SI   Pages: 138-147   Published: MAY 2012
  • Al-Alili, A ; Islam, MD; Kubo, I; Hwang, Y; Radermacher, R, Modeling of a solar powered absorption cycle for Abu Dhabi, APPLIED ENERGY  Volume: 93   Special Issue: SI   Pages: 160-167   Published: MAY 2012

2011

  • Somers, C; Mortazavi, A ; Hwang, Y; Radermacher, R ; Rodgers, P; Al-Hashimi, S, Modeling water/lithium bromide absorption chillers in ASPEN Plus, APPLIED ENERGY  Volume: 88   Issue: 11   Pages: 4197-4205   Published: NOV 2011
  • Alabdulkarem, A; Mortazavi, A; Hwang, Y; Radermacher, R; Rogers, P; Optimization of propane pre-cooled mixed refrigerant LNG plant, APPLIED THERMAL ENGINEERING  Volume: 31   Issue: 6-7   Pages: 1091-1098   Published: MAY 2011
  • Xu, Xing; Hwang, Yunho; Radermacher, Reinhard, Refrigerant injection for heat pumping/air conditioning systems: Literature review and challenges discussions, INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID  Volume: 34   Issue: 2   Pages: 402-415   Published: MAR 2011

2010

  • Fernandez, N., Y. Hwang, R. Radermacher, "Comparison of CO2 Heat Pump Water Heater Performance with Baseline Cycle and Two High COP Cycles,"  International Journal of Refrigeration, Vol. 33, pp. 635-644, 2010.
  • Aynur, T., Y. Hwang, R. Radermacher, "Field Performance Measurements Of A Heat Pump Desiccant Unit in Humidification Mode," Energy and Buildings, In Press, Vol. 42, Issue 5, pp. 678-683, May 2010.
  • Aynur, T., Y. Hwang, R. Radermacher, "Integration of VRF and Heat Pump Desiccant Systems for the Heating Season," Energy and Buildings, Vol. 42, Issue 4, pp. 468-476, April 2010.
  • Aynur, T., Y. Hwang, R. Radermacher, "Integration of VRF and Heat Pump Desiccant Systems for the Cooling Season," Applied Thermal Engineering, Vol. 30, Issues 8-9, pp. 917-927, June 2010.

2009

  • Nayak, S., Y. Hwang, R. Radermacher, "Performance Characterization of Gas Engine Generator Integrated With a Liquid Desiccant Dehumidification System," Applied Thermal Engineering, Vol. 29, February 2009.
  • Aynur, T., Y. Hwang, R. Radermacher, "Simulation Comparison of VAV and VRF Air Conditioning Systems in an Existing Building for the Cooling Season," Energy in Buildings, Vol. 41, Issue 11, pp. 1143-1150, November 2009 .
  • Kalinowski, Y. Hwang, R. Radermacher, S. Al Hashimib, P. Rodgers, "Application of Waste Heat Powered Absorption Refrigeration System to the LNG Recovery Process," International Journal of Refrigeration, Vol. 32, Issue 4, pp. 687-694, June 2009.
  • Wang, X., Y. Hwang, R. Radermacher, "Two-Stage Heat Pump System with Vapor-Injected Scroll Compressor Using R410A as a Refrigerant," International Journal of Refrigeration, Vol. 32, pp. 1442-1451, 2009.
  • Aynur, T., Y. Hwang, R. Radermacher, "Simulation of a VAV Air Conditioning System in an Existing Building for the Cooling Mode," Energy and Buildings, Vol. 41, pp. 922-929, 2009.
  • Nayak, S., Y. Hwang, R. Radermacher, "Performance Characterization of Gas Engine Generator Integrated with a Liquid Desiccant Dehumidification System," Applied Thermal Engineering, Vol. 29, pp. 479-490, 2009.

2008

  • Wang, X., Y. Hwang, R. Radermacher, "Investigation of Potential Benefits of Compressor Cooling," Applied Thermal Engineering, Vol. 29, October 2008.
  • Hwang, Y., R. Radermacher, T. Hirata, "Oil Mass Fraction Measurement of CO2/PAG Mixture," International Journal of Refrigeration, Vol. 31, March 2008.
  • Winkler J, V. Aute, R. Radermacher, "Comprehensive Investigation of Numerical Methods in Simulating a Steady-State Vapor Compression System," International Journal of Refrigeration, Vol. 31, Issue 5, pp. 930-942, August 2008.
  • Hwang, Y., R. Radermacher, A. Al-Alili, I. Kubo, "Review of Solar Cooling Technologies," HVAC&R Research, Vol. 14, No. 3, pp. 507-528, 2008.
  • Gado, A., Y. Hwang, R. Radermacher, "Dynamic Behavior of Mobile Air Conditioning Systems," HVAC&R Research, Vol. 14, No. 2, 2008.
  • Aynur, T., Y. Hwang, R. Radermacher, "Field Performance Measurements of a Heat Pump Desiccant Unit in Dehumidification Mode," Energy and Buildings, Vol. 40, pp. 2141-2147, 2008.

2007

  • Winkler, J., V. Aute, R. Radermacher, "Comprehensive Investigation of Numerical Methods in Simulating a Steady-State Vapor Compression System," International Journal of Refrigeration, September 2007.

UMD receives two new DOE Building Technologies awards

Takeuchi and Aute to lead projects 

Failure is an Option

Alumni Profile: Cara Martin

Clark 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.

Dr. Hwang and Dr. Aute Named New CEEE Co-Directors

They aim to expand CEEE's status as one of the leading Centers for HVAC&R Research in the world

Kailkhura and Vathsavai Win Best Consortium Student Presentation Award, Spring 2019

Research sponsors voted theirs best out of 15 presentations.

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.

2018 ARPA-E Summit to Showcase UMD Innovations

UMD Energy Innovation Technologies dominate

Inaugural Energy Innovation Seed Grants awarded

$100K grants promote energy innovation technology

Researchers Introduce RoCo, a Mobile Personal Heating and Cooling Device

UMD Invention Has Potential to Cut Energy Costs in Residential and Large Building AC

UMD 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.

UMD has Largest University Showing at 2016 ARPA-E Summit

UMD researchers showcase transformative energy research at ARPA-E Energy Innovation Summit

The University of Maryland Receives $50,000 Grant from Dominion Foundation

Award supports new research on high efficiency solar-powered cooling systems.

University of Maryland No. 1 in ARPA-E Awards

UMD has most active ARPA-E awards among all U.S. universities.

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.

Food Safety, Energy Storage & Video Authentication Inventions Honored at Awards Ceremony

Three Clark School innovations win UMD Invention of the Year Awards

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.

Maryland Industrial Partnerships Program Awards $4.1 Million to 15 Maryland Industry/Academic Teams to Develop Technology Products

Green technologies, oyster farming, Chesapeake Bay-saving and medical inventions dominate the funding round.

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.

$2.8M DOE Grant Funds Continued Development of Cooling Technology

Takeuchi leads team creating solid-state, highly efficient cooling systems.

Radermacher to Receive Distinguished International Service Award

Mechanical engineering professor honored for contributions to international institutional programs.

New Minta Martin Professors Named

Historic honor recognizes full professors who have made significant scholarly contributions.

Clark School Faculty Team Wins a UMD Invention of the Year Award

Their novel "natural timestamp" improves security and editing of audio, visual recordings.

Trento Funds Collaborative International Projects

Partnership will support joint research in solar power, cell-based systems and ultra low-power systems.

Hwang To Receive ASHRAE's Distinguished Service Award

Center for Environmental Energy Engineering associate director honored by heating and cooling experts.

How Your Cell Phone Keeps Its Cool

For making today's electronics cooler--literally--Bar-Cohen wins Luikov Medal.

Hwang Appointed Associate Director of CEEE

Yunho Hwang will oversee operations of the world-renowned research facility.

EERC Conducts 1st Workshop

UM faculty and Petroleum Institute review cooperation success of past year.

Agreement Marks Exchange Program's 20th Anniversary

Research exchange that began in CEEE brings international flavor to Clark School.

Clark School Offers Heating Cost Solutions

New Clark School software may provide relief from rising energy bills.

Innovation Hall of Fame Moves, Inducts New Members

The Innovation Hall of Fame has moved to its new Kim Building home and now includes two new members.

Design Teams Win Welcome Center Sustainable Technology Showcase Competition

Clark School ME faculty and grad students win design competition to build eco-friendly welcome center.

Clark School Accomplishments Spring 2002

A list of Clark school accomplishments for Spring 2002

Radermacher inducted into Innovation Hall of Fame

Dr. Reinhard Radermacher, professor, inducted into A. James Clark School Innovation Hall of Fame.