Professor Eckhard Groll, who has made unique contributions in the field of positive displacement compressor analysis, is the 2018 winner of the Institute of Refrigeration J & E Hall Gold Medal.
In more than 23 years at Purdue University, Indiana, US, Groll has led teams whose work has benefited heating, ventilation, air conditioning and refrigeration industries across the globe. Together with his colleagues and graduate students, he has developed detailed and comprehensive simulation models of hermetic PD compressors, including scroll, rolling piston, reciprocating, linear, rotating spool, bowtie and S-RAM using different working fluids including HFCs, HFOs and natural refrigerants.
Professor Groll, aged 54, said, “I am very excited to receive this award particularly considering the history of J & E Hall and the fact that the company was the inventor of the first CO2 compressor. I have worked in this area throughout my academic career at Purdue. The link is absolutely fascinating for me.”
The models have been used extensively by his research sponsors to improve existing compressors or develop new ones. They consider all aspects of the compressor – such as the geometry, thermodynamic governing equations, internal leakage analysis, suction and discharge valve loss analysis based on valve dynamics.
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