Meeting/Event Information

April 2018 Meeting

April 04, 2018
5:30 PM to 7:00 PM
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The Country Club of Sioux Falls
3400 W 22nd St
Sioux Falls, SD 57105

Dinner Meetings:

Social Hour: 5:30 - 6:00 PM
Meal: 6:00 PM
Program: 6:15 - 7:00 PM
Place: The Country Club of Sioux Falls

The speaker with be Dr. Echkard Groll who is a Distinguished Lecturer for ASHRAE.

Dr. Eckhard A. Groll is the Reilly Professor of Mechanical Engineering and also serves as the Director of the Office of Professional Practice at Purdue University.  He joined Purdue University as an Assistant Professor in 1994 and was promoted to Associate Professor in 2000, to Full Professor in 2005, and to the Reilly Professorship in 2013.  He received his Diploma in Mechanical Engineering from the University of the Ruhr in Bochum, Germany, in 1989 and a Doctorate in Mechanical Engineering from the University of Hannover, Germany, in 1994.  

Professor Groll teaches Thermodynamics and his research focuses on the fundamental thermal sciences as applied to advanced thermal systems, components, and their working fluids.  Since joining Purdue, he has been the principal investigator (PI) or Co-PI on 100 research grants and 46 educational grants with a total budget of approximately $10.3 million.  He has advised 22 doctoral students, 48 master students, 52 undergraduate project students, 67 visiting scholars/visiting research associates, and 9 post-doctoral researchers.  Currently, he advises 8 Ph.D. students, 10 master students, 1 Post-Doc, 3 undergraduate project students and 2 visiting scholars/visiting research associates.  Dr. Groll has authored or co-authored 103 archival journal articles and 176 conference papers.  He has been the co-author of 3 book chapters and the editor or co-editor of 7 conference proceedings.   He holds 4 patents.  He has given 73 invited lectures/invited seminars and 11 keynote lectures.  He serves as the Regional Editor for the Americas for the International Journal of Refrigeration and is a Fellow of the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE). 

Professor Groll has been recognized for his academic leadership in higher education.  He is a 2010-2011 Fellow of the American Council on Education (ACE) and 2009-2010 Fellow of the Academic Leadership Program of the Committee on Institutional Collaboration (CIC-ALP).  He has received numerous awards for his research and teaching excellence including the 2010 E. K. Campbell Award from ASHRAE, his induction into the Book of Great Teachers at Purdue University in 2008, and the 2007 Purdue University Faculty Scholar Award.

Dinner Meeting:  “Recent Research of Novel Compression Concetps for Heat Pumping, A/C, and Refrigeration Applications”

The phase-out of CFC and HCFC refrigerants, combined with advances in compressor technology such as reduced noise and vibration and mechanical capacity control, has motivated the development of novel compression concepts for the refrigeration industry.  This paper provides an overview of several new developments for refrigeration, air-conditioning and heat pumping applications, including two novel compressors called the bowtie compressor and z-compressor.  The bowtie compressor offers an integrated method of capacity modulation for use in domestic refrigerators/freezers.  It modulates the cooling capacity by changing the piston stroke without changes of the clearance volume for better thermodynamic efficiency.  The compressor is called bowtie compressor due to its two sector-shaped, opposing compression chambers forming a bowtie.  The z-compressor is a dual-chamber hermetic rotary compressor with opposing upper and lower compression chambers separated by z-shaped blade.  The compressor offers significantly lower noise and vibration levels than a conventional rolling piston compressor.  In addition to presenting these new compressor types, research on flooded compression, miniature-scale compression, and compression processes with multi-port refrigerant injection will also be presented.

***Please note you must RSVP online no later than 5PM, Friday March 30th.  When you RSVP, you may pay with a credit card online or choose to pay with cash/check at the door.


$12.00 Member

$12.00 Non-Member