A line of ammonia industrial refrigeration packages ranges from motor-compressor combinations on rails to complete rotary screw compressor packages. The NH3 screw compressors are available in 20-300 hp.
My column in the Nov. 12 issue of The NEWS focused on HFCs, especially low GWP HFCs as retrofits for R-22 systems. This column will focus on what I used to call “beyond HFC” refrigerants, although these days, the term might be “other than HFC” refrigerants.
The expanding applications for ammonia in commercial refrigeration are being demonstrated in several recent projects involving heat pumps. What constitutes one possibility for efficient management of heat energy?
The significance of a recent two-day conference was not only the extensive presentations regarding natural refrigerants such as CO2, HCs, and ammonia, but where the meeting was held — Washington, D.C.
During the brewing process, certain temperatures have to be maintained. For the amber nectar to succeed, breweries need refrigeration solutions tailored to their processes and individual requirements.
When the EPA’s Greenchill’s Keilly Witman spoke at the Food Marketing Institute Expo last spring she said so-called natural refrigerants would dominate the conversation and begin to appear in supermarkets in North America. Was she right?
On June 1, the U.S Environmental Protection Agency (EPA) announced the release of its draft Integrated Risk Information System (IRIS) health assessment for ammonia. The draft assessment was available for public comment for 60 days and will be sent for independent expert peer review.
The conversation on ways to make ammonia work in a wider range of refrigeration applications is drawing increasing attention these days. At the most recent International Institute of Ammonia Refrigeration (IIAR) conference in Milwaukee, technical presentations covered its uses in supermarkets, with heat pumps, in absorption refrigeration, and in conjunction with CO2.
At the most recent International Institute of Ammonia Refrigeration (IIAR) conference, a focal point was the exhibit hall where more than 100 manufacturers, service providers, and educational organizations provided updated information.
While HFC refrigerants appear firmly entrenched in the HVACR industry landscape for the foreseeable future, it is interesting to see how so-called “natural” refrigerants such as ammonia, HCs, and CO2 could have an impact.