Articles by Peter Powell

Refrigeration Technology Considered at EnVisioneering Symposium

Event Also Looks at Regulatory Challenges
Danfoss’ periodic EnVisioneering symposia look at a wide range of HVACR issues and topics. For its most recent event this past fall in Baltimore, the focus was on refrigeration, both in terms of regulations and the latest in technology. 


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Changes to Compressors, Detectors, Freezers

Developments Reflect Changes in Refrigeration Technologies
The constant change in refrigeration technologies is reflected in recent developments in compressors, leak detectors, and absorption freezers.


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Where Does Refrigeration Figure into a Supermarket’s Plan?

For Some, Refrigeration Is Just Another Blip on the Map
The photograph with this column was taken from the balcony of a supermarket in the Baltimore area during a tour of several stores at the Food Marketing Institute Energy and Store Development Conference. Notice the massive amount of floor space and products on display.


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Contractors Crucial in Supermarket Perceptions

HVAC Contractors Essential in Supermarkets’ Freshness

To me, cleanliness is extremely important, especially as to what the meat preparation area looks like after it is closed for the evening. I would hope all customers put high priority on store cleanliness and store owners do the same.


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New Directions in Refrigeration

Cooling Uses Water, Magnetics, Stand-alone R-32

With all the talk in recent years, and even more so in recent months, regarding refrigerants like CO2 and hydrocarbons (HCs) making inroads in refrigeration equipment, the trends in the ‘R’ of HVACR are even more widespread. 


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Governmental Action on Refrigeration Safety, Regulations

Warehouses, Supermarkets Among Sites Being Watched
Refrigeration service technicians point out the need to keep up to date with what is happening elsewhere that could affect them. So, from time to time, we like to bring readers up to date on some news items related to refrigeration regulatory and safety issues.


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A ‘Natural’ Tilt by the EPA?

Where the Feds Seem to Stand on Certain Refrigerants
If you want to get some idea of where the U.S. Environmental Protection Agency (EPA) is leaning when it comes to refrigerants, consider that EPA’s GreenChill program gave a “Best of the Best” award to a store using a transcritical CO2 system.


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Making a Case for New Refrigerants, Technology

Plants, Restaurants, Supermarkets Benefit from Latest Developments
There is so much talk these days about new refrigeration technologies and new refrigerants that it is sometimes difficult for contractors to sort out what’s theoretical and what’s actually up and running in the field. Here’s a snapshot of some of the latest refrigerants being utilized across various projects.


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Why the EPA Does What It Does

Top Administrator Talks Science of Regulations

Before we continue to launch attacks at the agency as an easy target, it might be good to step back and examine why the EPA does the things it does. 


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HVACR Industry Wary of R-22 Surplus

R-22 Chugging Along Despite Phasedown

Current inventory of R-22 remains plentiful in the U.S., even as the industry heads toward a total phaseout of the popular refrigerant in 2020.


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2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

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NEWSMakers: Matt Barga

Matt Barga, portfolio manager — a/c and coils, Ingersoll Rand, discusses how the company is working to comply with the new energy conservation standards for heat pumps and air conditioners that go into effect on Jan. 1, 2015. Posted on Dec. 19.

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