ENME 489M - Ultra Energy Efficient Thermal System Design

3 Credits



None required.


  • Lecture notes will be available to students through ELMS site.
  • F.C. McQuiston & J.D. Parker, Heating, Ventilating and Air-Conditioning, 6th ed., John Wiley and Sons, 2005. ISBN 0-471-47015-5
  • R. Radermacher & Y. Hwang, Vapor Compression Heat Pumps with Refrigerant Mixtures, Taylor & Francis, 2005. ISBN 0-8493-3489-6
  • ASHRAE, AHSREA Handbook-Fundamentals 2005. ISBN 1-883413-45-1.


ENES 232


The goal of the course is to drive energy efficiency innovation in thermal systems used in and around U.S. buildings. To achieve this goal, the course will address and discuss in detail on the psychrometric processes, vapor compression cycles and heat exchanger designs.  Students will gain a thorough understanding of the potentials of these emerging technologies and experience various aspects of research and development in engineering: modeling and designing of psychrometric processes, various cycles, heat exchangers and controls, fabricating components, constructing test facility and conducting testing. This course is the first part of two-semester long effort, the system design optimization and fabrication of component and systems will be focused on. Outcome of this course will be applied to UMD’s 2017 Solar Decathlon project house.


Students are expected to learn in depth the application of heat transfer processes and thermodynamic cycles to building thermal systems. This course is a technical design elective and pulls together the background knowledge in real life examples of design and evaluation.


  • Environmental Regulations and Responses
  • Moist Air Properties and Conditioning Processes
  • Modeling of Thermal Systems Using EES
  • Vapor Compression Cycle and Cycle Options
  • Bin Temperature Method
  • Properties of Working Fluids
  • Development of Energy Saving Novel Concepts
  • Cycle Design
  • Heat Exchanger Design
  • Test Facility Design for Performance Measurement of the Air-conditioning Systems

Class/Laboratory Schedule 

  • One 160 minute lecture per week

Last Updated By 
Yunho Hwang, June 2017