Ferris State University’s Commercial Refrigeration Laboratory has gone totally chlorine-free. By replacing the refrigerant HCFC-22 that was in two medium-temperature commercial refrigeration cases in the laboratory, the students in the associate degree program in HVACR can boast that the lab is now chlorine-free.
ComStar International has made several announcements related to hydrocarbon refrigerants. ComStar said that it and its China JV company will begin offering compressors for HC-441a; Energy Star testing of R-441a for residential refrigerators is ongoing; and ComStar is licensed as the exclusive U.S. manufacturer and distributor of R-441a.
A company from Vermont called Freeaire Refrigeration has come up with a technology, according to the company, designed to reduce electrical consumption “by eliminating unnecessary operation of every part of a system” and, for colder climates, adding an element that allows the use of cold outside air.
The process of brazing ACR tubing is a common task for many refrigeration technicians. Although this is relatively simple, there are some system problems that can occur if some basic brazing procedures are not followed.
The U.S. Department of Energy’s (DOE’s) Fuel Cell Technologies Program will host a webinar with the Clean Energy States Alliance and the Technology Transition Corp. titled “Fuel Cells for Supermarkets” on April 4 from 1 to 2 p.m. Eastern time. The webinar will detail the experiences that supermarkets in four states have had with stationary fuel cells.
The need for energy efficiency and the desire for
intelligent energy efficiency have created a hunger for data. This trend
started 10 years ago (or more) in the building controls industry and is now
being seen in the refrigeration controls sector.
It is a familiar lament for those who work on supermarket refrigeration. There is a problem. The owner wants it fixed immediately. The technician can apply a quick fix, but that won’t deal with potential recurring problems - and the fact that the equipment may not be operating all that efficiently or even be all that up-to-date.
Anthony, a manufacturer of glass refrigerator and freezer doors as well as display cases, has announced that it has completed a licensing agreement with Glacier, a maker of beverage doors and package doors for commercial refrigeration systems. Anthony is a portfolio company of Aurora Capital Group and Glacier is a business unit of Universal Industries.
This article explores how a restricted metering device will affect system performance and efficiency. The system is a commercial refrigeration system with a TXV as the metering device. The refrigerant being used is HFC-134a. Very similar results will occur if an automatic expansion valve (AXV) is used.
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