Faculty Directory

Radermacher, Reinhard

Radermacher, Reinhard

Minta Martin Professor
Director, Center for Environmental Energy Engineering
Mechanical Engineering
Maryland Energy Innovation Institute
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 400 publications, including 3 books, numerous invention records and 12 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-present
  • 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 Build 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.

David Catalini Awarded Graduate Student Summer Research Fellowship

Plans to make significant strides in his research on elastocaloric cooling.

Investing in Innovative Energy Technologies

2019 Energy Innovation Seed Grants awarded

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.

2018 ARPA-E Summit to Showcase UMD Innovations

UMD Energy Innovation Technologies dominate

Mechanical 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.

Five Mechanical Engineering Graduate Students Selected for Clark School Future Faculty Program

Graduate students selected for program designed to produce next great engineering professors.

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.

Professor Reinhard Radermacher to Receive Distinguished International Service Award

Mechanical Engineering Professor honored for contributions to international institutional programs.

Student Exchange Program Hosted by CEEE Expanding

Center of Environmental Energy Engineering has hosted a student exchange program for more than 25 years.

Radermacher and Hwang Receive Funding Through Trento-ISR Collaboration

Mechanical Engineering faculty participate in joint project wtih Italian province and Clark School's Institute for Systems Research.

Collaborative international projects funded in solar power, cell-based systems, and ultra-low power systems

Research is part of agreement between Autonomous Province of Trento, Italy, and University of Maryland.

Eisele, Hwang, and Radermacher Win Best Technical Paper Award

SAE/IMechE Vehicle Thermal Managment Systems Conference Awards Best Technical Paper

Radermacher Leads Roadmapping Worskhop on Advanced Cooling Technologies for EPRI

Electric Power Research Institute turns to CEEE for assistance.

Engineering Students Take Part in Executive Time Management Seminar

Seminar focuses on fine tuning basic management skills

Eisele, Hwang, and Radermacher Win Best Technical Paper Award

CEEE professors and ME grad student have strong showing at VTMS 10 Conference.

Hwang Honored with ASHRAE's Distinguished Service Award

Dr. Yunho Hwang, CEEE Associate Director, to be recognized for his service contributions.

Radermacher Elevated to ASHRAE Fellow

Professor Reinhard Radermacher was recently elevated to the grade of Fellow of ASHRAE.

UM Engineers Offer Long-Term Relief for Heating and Cooling Costs

The result could be dramatic savings for consumers as early as 12 months from now.

Radermacher Guest Lecturer at Shanghai Jiao Tong University Conference

International Academic Conference of Research in Air Conditioning & Refrigeration held on April 13.

ASHRAE Bestows Exceptional Service Award to Radermacher

The Department extends a heartfelt congratulations to Professor Radermacher.

CHP Paper Earns ASME AESD Best Student Paper Award

The award is to be presented at the ASME International Mechanical Engineering Congress and RD&D Expo AESD luncheon in November 2004.

Design Teams Win Sustainable Technology Welcome Center Competition

Team Winners Include ME Faculty and Graduate Students.

UNITED STATES DEPARTMENT OF ENERGY SELECTS UMD AS REGION'S NEW ENERGY CENTER

The University will receive funding for the Center through the Maryland Energy Administration (MEA).

Profs. Balachandran and Sandborn Winners of OTC Invention of the Year Competition

Professors Balakumar Balachandran and Peter Sandborn were the winners of two of the three (OTC) Invention of the Year Awards.

ASME Meeting Participants Tour Chesapeake Building

Tour was held on Wednesday, February 12, 2003.

Radermacher Hall of Fame Plaque Unveiled

Dr. Radermacher was inducted into the Innovation Hall of Fame for his innovation in the design of refrigeration systems and technology.

ASHRAE to Bestow Honors on 2 ME Faculty

American Society of Heating, Refrigeration and Air Conditioning Engineers will bestow honors and awards on Reinhard Radermacher and Arthur Bergles.

Declare Fuel Independence: Increase Mileage Standards

We need to face it: We depend on foreign oil.

First of 28 Chinese Engineers Receive Training with CEEE

The first seven from a group of 28 engineers have arrived to work with Professor Reinhard Radermacher and CEEE.

Professor Reinhard Radermacher Inducted into Clark School of Engineering Innovation Hall of Fame

Dr. Radermacher has been inducted into the Innovation Hall of Fame for his innovation in the design of refrigeration systems and technology.

American Society of Heating and Air-conditioning Engineers (ASHRAE)