Articles by Peter Powell

Rajendran Shines Light on Alternative Refrigerants

By Peter Powell
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Rajan Rajendran has garnered recognition as one of the leading experts on the use of alternative refrigerants. His knowledge and ability has gained him recognition as one of The NEWS’ 2012 NEWSMakers.


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Retrofitting with HFCs

By Peter Powell
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Now, more than ever, the industry has been looking for alternatives to R-22 to keep the huge existing base of R-22 equipment up and running. More reclamation has been one option. But at the same time, attention is being paid to a large number of HFC refrigerants that can be retrofitted into R-22 equipment.


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Retrofit Round-up: Plenty of Options

By Peter Powell
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Because no one HFC refrigerant can be retrofitted efficiently into the entire range of R-22 equipment, a wide and sometimes changing variety of HFCs have entered the market. The NEWS contacted a number of refrigerant manufacturers asking them to discuss some of their most popular HFCs for R-22 retrofits.


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Beyond or Beside HFCs

By Peter Powell
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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.


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Spanning the Globe Naturally

By Peter Powell
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While natural refrigerants start to slowly — and cautiously — gain a foothold in North America, their impact is more forceful almost everywhere else. What do other countries have to say about this?


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A Glance at CO2 and HFOs as Refrigerants Now and in the Future

By Peter Powell
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Two recent refrigerant developments focus on CO2 and HFOs. One relates to CO2 in refrigeration; the other is an announcement of an HFO in air conditioning.


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Refrigeration Education From Action-Adventure Stories

By Peter Powell
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Those of a certain age may remember the original editions of the young teen series such as The Hardy Boys and Nancy Drew. Since the early 1970s, the series still around have been updated and condensed. I mention that because in the original series more attention was paid to minor details that made for interesting reading.


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Refrigerant Report: HFCs Regain Foothold

By Peter Powell
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Recently, there has been a lot of talk about natural refrigerants such as CO2 and hydrocarbons gaining a stronger foothold. Yet much of the talk is related to the possible phasedown of HFC production. And currently, while there may be some talk about a possible phasedown, no actual action seems to be taking place.


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Innovations Presented at Purdue Conference

By Peter Powell
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Improving heat exchanger performance is one part — a critical one — in enhancing the overall system performance in HVACR systems. What is one way to do it?


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Refrigeration Uses Heat Pumps, Ammonia

By Peter Powell
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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?


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Mark Satterfield, founder and CEO of Gentle Rain Marketing Inc. and author of “The One Week Marketing Plan” talks about his book and the importance of HVAC blogging. Posted on Sept. 19.

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