Articles by Peter Powell

Low GWP in Refrigeration Discussed at Conference

September 3, 2012
When it comes to industrial and commercial refrigeration, high on the research radar screen are low GWP alternative refrigerants for everything from small bottle coolers and freezers to entire supermarket systems.


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Carbon Dioxide and Ammonia Use in Supermarkets

September 3, 2012
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?


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Experts on HVACR-Environmental Issues Don’t Chime in on Weather

August 20, 2012
As this is being written temperatures are near 100°F here on the Illinois/Wisconsin border and a drought is in full force. The hue and cry is, “See, see, global warming! Told you it was real!” But folks from Europe were telling me that the Old World was experiencing one the coolest and wettest summers on record.


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SkillsUSA Draws Big HVACR Field

August 6, 2012
Who says young people do not want to be a part of the HVACR industry? Amidst the 5,600 vocationally-inclined individuals competing in 94 contests at the annual SkillsUSA National Leadership and Skills Conference, there were 58 in the HVACR event. That was the largest number ever to take part in the HVACR competition.


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More on the Current State of HCFCs, HFCs

August 6, 2012
A recent wave of published reports focuses on new ways to monitor HCFCs during their phaseout period, HFCs in terms of their long-term potential, and how Canada is dealing with the disposal of unwanted refrigerants.


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New Product Rollout Continues

July 30, 2012
As part of its “disruptive innovation” emphasis of recent years, Milwaukee Tool pledges to bring out “more new products faster” than any competitor. What's the latest from the manufacturer?


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Why Refrigeration Is Hot at the SkillsUSA National Leadership and Skills Conference

July 30, 2012
I just spent several days in Kansas City, Mo., for the annual SkillsUSA National Leadership and Skills Conference. Once out of the heat and humidity and inside air conditioned Bartle Hall for the HVACR contest, I found, as usual, lots of attention given to refrigeration.


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Refrigeration Trends Toward Natural Refrigerants

July 2, 2012
Now that the Environmental Protection Agency (EPA) has approved the use of three hydrocarbon (HC) refrigerants in some smaller appliance applications, advocates of HCs are continuing to promote use in larger equipment, with commercial ice machines as well as reach-in/walk-in freezers and coolers possibly next in line.


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Chilling Answers for a Variety of Customers

July 2, 2012
The most recent Food Marketing Institute Expo in Dallas and National Restaurant Association Restaurant-Hotel-Motel Show in Chicago brought out the very latest in ice-making equipment, storage bins, and walk-in freezers and coolers as well as reach-in versions. This roundup of the latest in equipment is culled from both shows.


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R-744: Components, Applications, Training

July 2, 2012
When talk first surfaced a number of years ago about using R-744 (CO2) in commercial refrigeration, there were two challenges — making the refrigerant work as a stand-alone in transcritical applications as well as in cascade systems and developing the components to make such approaches possible. Where does the refrigerant stand currently?


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