Energy and cost efficiency of CO₂ commercial supermarket applications, UL approval procedure for high pressure CO₂ equipment, and innovative CO₂ heat pump technologies are just a few of the topics that will be covered during the Technology Case Studies Session of ATMOsphere America 2013. UPDATE: additional case study on simplified and efficient controls management system applied in Supervalu Carpentaria Supermarket and Roche Pharmaceuticals.

IGA Cap-de-la-Madeleine by Marc-André Lesmerises, Carnot Refrigeration

To reduce its energy consumption and green house gas emissions, Sobeys Quebec chose to replace its existing HFC refrigeration system at its IGA Extra Supermarket in Cap-de-la-Madeleine with a CO₂ refrigeration system from Carnot. This new system uses captured CO₂ gas for water heating purposes without the need for a heat exchanger or pumping system. This case study will highlight how the new CO₂ system helped the store achieve a 22% reduction in refrigeration energy consumption.

Ammonia/CO₂ System Offers Mainstream Solution by Danfoss

Together, Danfoss and Cimco Refrigeration present a unique ammonia/CO₂ refrigeration solution recently deployed by Canadawide for an expansion at its 60,000 ft2 distribution center/warehouse operation in Montreal, Canada. The study addresses how the unique solution contributed to energy, installation cost, and maintenance savings for Canadawide. The presentation also shows how this solution is scalable for mainstream deployment.

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