The ATMOsphere Review Panel has selected the second round of CO2 case studies – from Danfoss, CAREL and CIMCO – to be presented at ATMOsphere America 2017.
Taking place in Loews Coronado Bay Resort, San Diego, ATMOsphere America 2017 serves as the leading forum for discussion about the business case for natural refrigerants in North America.
Over 400 participants from the US, Canada, Mexico and the rest of the world will take part in the discussion together with end users. Attendees will hear about latest technology, legislation and innovation related to natural refrigerants.
The presentations are:
Danfoss | Ejector Technology – The Next Generation in Transcritical CO2 by Hans Ole Matthiesen
This presentation will provide updates on the latest developments in ejector technology, which is the next step in assuring that transcritical CO2 is a viable, energy-efficient solution in any climate. Since September 2014, Danfoss has been testing CO2 ejector technology in a southern European supermarket. The test results show very good reliability and significant reductions in both average and peak energy consumption during warm periods.
In addition, the trial has proven the cost savings of ejector technology as well as significant energy savings. This will contribute to bridging the first cost gap toward making transcritical CO2 a cost-effective solution with regard to both initial cost and total cost of ownership.
CAREL | CAREL Solution for Managing the Latest Transcritical Booster Rack by Michael Tokarsky and Nicola Pieretti
When talking about ways to use CO2, the approach most often discussed is in transcritical applications, where CAREL is able to combine the requests of energy efficiency, respect for the environment, and ease of installation and maintenance. CAREL is already present in the United States with its solution for CO2 condensing units. In the last two years it is imposing the latest technology for managing multiple-compressor racks for commercial refrigeration.
This case study will show how an “intrinsic complex technology” can be fully optimised on one hand and extremely easy to understand and use on the other, thanks to integrated and intuitive control systems directly applied in installations in the field. CAREL will present its solution for managing the latest transcritical booster racks, with a cooling capacity of around 28.5 tons, installed in the USA.
CIMCO | Various approaches using natural refrigerants for a cold storage project construction by Benoit Rodier
Cimco Refrigeration developed a case study for a cold storage owner and distributor to compare three systems using natural refrigerants. The storage owner wanted to transform an existing building with dry storage operation in order to become a cold storage facility. An all-ammonia recirculated system, an ammonia/CO2 brine and cascade system, and finally an all-CO2 transcritical booster system were compared.
This case study shows the comparison of the different approaches using natural refrigerants and presents the results after the trial. The conclusions show that natural refrigerants work better than HFCs, offering considerable environmental benefits and also contributing to energy savings.