The first US transcritical CO2 booster system installation, the development of ammonia/CO2 cascade solutions for cold storage but also for retail food store refrigeration, and the operation of a commercial CO2 heat pump that caters for hot water and AC needs, are among the case studies to be discussed at ATMOsphere America 2012 workshop. R744.com provides a first glimpse of what to expect from the presentations by food retailer Supervalu, Danfoss, Carnot Refrigeration, EcoThermics and more.
First Transcritical CO2 Booster System Installation in the US & Global Technology Trends by Michael Englebright, Danfoss: This presentation will first provide a historical overview of global CO2 technology developments during the past decade, closely examining the technology advances, implementation and adoption in the global industrial refrigeration and food retail segments. A specific overview of CO2 systems in North America will be depicted showing a current case study of the first transcritical CO2 booster system installed in the US. The presentation will cover design benefits, system challenges, efficiency thresholds compared to other refrigerants, and will conclude with an outlook for how the North America market can overcome adoption barriers - specifically training and capital costs constraints.
Ammonia/CO2 Cascade Refrigeration System at a Defence Commissary Agency Project by Rob Arthur CTA Architects Engineers: The goal of the project was to develop a commercial refrigeration system that was more energy efficient and more environmentally friendly then the standard refrigeration systems being used in U.S. grocery stores today. The ammonia/CO2 cascade system is predicted to be at a minimum 10% more energy efficient with very little global warming potential and no ozone depletion potential. Project sponsor is the Department of Energy through the Commercial Building Partnership programme that is managed by National Renewable Energy Lab (NREL).
SUPERVALU’s Development of Next Generation Refrigeration Systems: Application of Ammonia, CO2, and Propane by Richard Heath, SUPERVALU and and Jim Armer, CTA Architects Engineers: In late July of 2012, SUPERVALU will be opening their first complete natural refrigeration store in the US. Through application of original technologies and innovations with the natural refrigerants ammonia, carbon dioxide, and propane, an industry influencing solution will be available. An on‐site comparison will be made between the ammonia primary system and a redundant R407A primary system. The result from this comparison will allow SUPERVALU and the industry to understand the achievable balance of Total Equivalent Warming Impact (TEWI), equipment and operating costs, maintenance considerations, and repeatability.
Products innovations in the field of natural refrigerants for North America, by Marc-André Lesmerises, Carnot: The presentation will highlight results of two recent projects. The first project will show a highly efficient ammonia/CO2 system in a distribution centre with reduced refrigerant charge and low system cost. Efficiency numbers, cost and general results will be presented. The second project together with leading Canadian supermarket retailer Sobeys will demonstrate how to introduce leading edge CO2 as primary fluid technologies and practices for refrigeration system design and operation. This presentation will show the real energy consumption data and the potential the systems have for other stores in North America.
Commercial and Industrial Hot Water from Transcritical CO2 Heat Pumps by Merle Rocke, EcoThermics: A Midwestern commercial bakery is implementing a transcritical CO2 heat pump system to significantly reduce its energy costs. The CO2 heat pump system will simultaneously produce high temperature hot water for washing baking equipment and cool, comfortable air conditioning for employees. Energy savings in excess of 50% are expected from this project. This case study will be based upon early data from commercial operation.
Other case studies in the field of Natural Refrigerants to be presented at ATMOsphere America 2012:
- Industrial Ammonia Heat Pumps in Food Processing by Sam Gladis, Emerson/Vilter
- Innovation in low charge, packaged ammonia refrigeration systems for temperature controlled storage and HVAC applications by Rob Lamb, Star Refrigeration
- Safe ammonia system design in various applications, by Alexander Cohr Pachai, Johnson Controls
- Latest Ultra Low Charge Ammonia Shell and Tube Evaporator by Zahid Ayub, Isotherm
- Propane Compressors for Light Commercial Refrigeration Segment in US Market by Embraco
- EPA-Approved Multiblend Pure‐Hydrocarbon Refrigerant Used for Air-Conditioning and Refrigeration Applications by Richard H. Maruya and Steven Mella, AS TRUST
Learn more about ATMOsphere America on the events website: http://www.atmo.org/America2012
Register for ATMOsphere America here
About ATMOsphere America
Taking place on 12-13 June 2012 in Washington DC, ATMOsphere America will bring together leading experts to discuss not just the latest market trends, end user views or regulatory issues, but also the latest technology trends for the US and Canada.
Main theme: THE BUSINESS CASE FOR NATURAL REFRIGERANTS IN NORTH AMERICA: For the first time ATMOsphere is coming to North America. With the intention to make it THE annual meeting place for industry experts to discuss natural refrigerant trends, latest technologies and regulatory issues in the US and Canada, it is targeting around 200 decision makers from leading retailers, suppliers, associations and more. Topics for presentations and workshops will be looking at end-users (retailers and consumer brands) as well as technology providers from the commercial and industrial refrigeration, heat pump and air conditioning sectors. The second day features in addition a session on latest market trends as well as regulations, standards and training.
