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Pega Hrnjak, Natural Refrigerants Visionary, Passes Away
The world-renowned professor, researcher and entrepreneur pioneered advances in CO2 and ammonia that have transformed the HVAC&R industry.
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ATMO America: CTS Research Firm Shows Versatility of CO2
From bottle coolers to refrigerated containers and even mobile air-conditioning, functional CO2 prototypes show the potential for widespread replacement of HFC systems without compromising on cost or efficiency.
U.S. Research Firm CTS Develops Efficient, Low-Cost CO2 Condensing Unit
The small-capacity prototype has the same efficiency as a comparable R448A unit.
A conversation with Professor Pega
Refrigeration legend Pega Hrnjak of the University of Illinois at Urbana-Champaign talks about the state of the natural refrigerants industry and some of his latest projects.