Refrigeration

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CO₂ is primarily used in cascade systems that include ammonia, in booster systems in supermarkets, and as a stand-alone refrigerant for transcritical-configured systems.

The Plug n’ Cool (EPC) sealed-unit line is a cooling solution for commercial refrigeration compressor replacements or retrofits. 

Everyone talks about what it initially costs a supermarket to switch to a 100 percent CO2 commercial refrigeration system. But start thinking about the costs that come next — on everything from electricity to regulatory compliance — and the return on investment on CO2 begins to make a great deal of sense.

Danfoss’ 22nd EnVisioneering Symposium was titled “Refrigerants2Sustainability,” and focused on the challenges reshaping the refrigeration landscape. These include climate change, increased regulatory pressure, ever-increasing energy costs, contractor training on new low-GWP systems, and more.

So, supermarket owners want refrigeration systems that are energy efficient to hold down costs and pro-environmental for political correctness. But for engineers, contractors, and technicians that approach may not be all that easy, whether bringing a new store online or retrofitting an existing one.

A demonstration of complex — but ultimately valuable — developments when it comes to supermarket refrigeration is a project conducted by the Oak Ridge National Laboratory (ORNL) and the U.S. Department of Energy (DOE).

This is my last Point of View commentary for The NEWS’ FROSTlines eNewsletter. By the time you read this, I will have been retired for several weeks. FROSTlines was a new venture for The NEWS when it began a few years ago. It was set to focus totally on refrigeration and it would be online only.

Appliance Recycling Centers of America Inc. (ARCA) announced that it has been granted a patent (U.S. Patent No. 8,931,289) covering its systems, methods, and techniques for facilitating the recovery and recycling of refrigerants and oil from air conditioners, refrigerators, freezers, and other appliances that contain refrigerant.

The No. 1 trend in HVAC refrigeration is the increase in R-22 prices as the supply-demand equation sorts itself out. 

Super Change™ has been developed to allow a fast and easy conversion from R-22 refrigerant or any mineral/alkylbenzene oil system, to any hydrofluorocarbon (HFC) refrigerant including polyolester (POE)-based R-407C and R-410A.