In a webinar hosted by the U.S. Environmental Protection Agency’s Tom Land of the GreenChill Partnership on June 9, special guest Erich Schwab of Target talked about the company’s experiences with CO2, concluding that a hybrid CO2 cascade system is “the optimal solution for Target”.
We believe that advancing CO2 technologies in supermarket refrigeration systems is absolutely viable. Which is why Target is changing its prototype for new stores from R404A to hybrid CO2 solutions,” said Schwab.
Target’s experience with CO2 has proven to be an interesting journey,” Schwab notes. “Transcritical was considered, but non-standard construction and complex systems led to a different outcome and an energy penalty in warm locations when operating in the transcritical. A hybrid R134a/CO2 DX is the optimal solution for Target.”
I’m happy to report that Target has seen significant improvement in one of our focus areas, specifically energy,” said Schwab.
We’re (Target) looking at ways to decrease GWP through an all natural solution using ammonia on the high-side,” said Schwab. “We’re very interested in some of the things going on in the industry right now with regards to that. We’re also continuing to monitor industry advancement with regards to CO2 transcritical in Europe and also looking at a R290 self- contained case solution for possible use in distributing systems.”
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