Articles by Peter Powell

A ‘Natural’ Tilt by the EPA?

Where the Feds Seem to Stand on Certain Refrigerants
By Peter Powell
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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
By Peter Powell
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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
By Peter Powell
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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
By Peter Powell
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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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Purdue Conferences Seek Papers

Concurrent Conferences Set for 2014
By Peter Powell
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The dates are set for next year’s three concurrent HVACR conferences at Purdue University. For authors wishing to present papers at any of the conferences, the abstract submission deadline is Dec. 20, 2013.


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Opening Up Students’ Minds to Their Job Options

Vocations Can Include the Manufacturing Sector as well as the Trades
By Peter Powell
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During the summer, the U.S. congressman representing the district in which I live visited a Danfoss plant where variable frequency drives (VFDs) are manufactured. In a Q&A with the media, the congressman spoke of the need to introduce young people to the value of being part of the manufacturing sector.


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The Bottom Line on Natural Refrigerants

Conference Presents Business Case for F-Gas Alternatives
By Peter Powell
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A recent state-of-the-industry panel session focused on the cost-effectiveness and energy efficiency of natural refrigerants when compared to the much more common f-gases.


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Propane, Ammonia, and CO2 Are Natural Choices for Supermarkets

New Technologies Guide Shift from F-Gases
By Peter Powell
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On the horizon are the so-called natural refrigerants. Measurements in real-world applications are continually pouring in, offering more evidence of the potential impact — or lack thereof — that these so-called natural refrigerants possess.


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Efficiency and Volume Top Walk-In Wish Lists

Noise, Cost in High Demand for Restaurant Owners
By Peter Powell
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In restaurants, those large, walk-in refrigerators and freezers need to be energy efficient to help maintain sometimes thin profit margins. And they need to run quietly so as not to disturb customers who may find themselves seated close to the kitchen. 


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Supermarket Talk Turns Natural

New Technology Could Make Refrigeration ‘Sexy’
By Peter Powell
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In supermarket refrigeration, much of the refrigerant talk is on the so-called ‘naturals.’ And among the naturals, one of the most talked about is R-744 (CO2). 


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