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Jeff Newel presented Hillphoenix’s installation of an Advansor CO2 booster refrigeration system in a warm climate - for a Sprouts Farmers Market store in Atlanta. Both the efficiency and cost gains were explained, presenting clear proof that transcritical CO2 systems can operate in the South.
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Reggie O’Donoghue of Emerson spoke of the virtues of CO2 transcritical systems and the advantages that the use of electronic controls in a CO2 booster system can bring. O'Donoghue identified the benefits by comparing the controls for a booster system to mechanical controls in terms of managing gas cooler transition and the maintenance of flash tank pressure.
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Tom Wolgamot of DC Engineering and Tristam Coffin of Whole Foods Market presented the company’s CO2 systems in the northern California region. These installations were compared in terms of system cost, installation cost and energy usage. The case study also looked at the lessons learned in the development of the CO2 stores.
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Klaas Visser of KAV consulting gave an in-depth analysis of the energy efficiency and environmental benefits of using CO2 refrigeration in U.S. supermarkets. Extensive data was used to reason for increased usage of CO2 refrigeration systems via a comparison with a R404-refrigerated store.
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Contractors Panel |
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Mark Turner, from Stellar, analysed the refrigeration climate along with projections for the future and how non-compliance can have devastating impacts on the atmosphere and water levels, in regards to global warming. Turner also touched on new technologies developed to adapt to the changing landscape and how to choose the best solutions, including distributed refrigeration with low charge rooftop systems, CO2/NH3 cascade systems, and low charge packaged chillers.
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Jose Mergulhao, vice president of CIMCO Refrigeration’s U.S. Operations, explained the company’s role in the industry, providing design/build, construction/installation, training, service and maintenance expertise. Mergulhao detailed some of the obstacles to the adoption of green solutions, particularly ammonia regulations, as well as market trends in the U.S. including packaged systems, mini compressors, control systems and transcritical CO2.
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In one of two presentations, Rob Arthur offered a design consultant’s perspective on CTA Architect’s global business, where 400+ staff have completed projects including cascade (CO2/ammonia) and CO2 transcritical installations for chains like Albertsons, Wholefoods, Target, Walmart, and more. Arthur compared and contrasted the life cycle, cost and regulatory burden placed on natural refrigerants as compared to HFCs, outlining a strong business case for innovative green systems.
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New Applications Case Studies |